Android NOVICES

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INDEX by Title: NB if any links are broken please PM me about them. Thanks.
TIP: if the chosen subject does not show immediately after clicking a link then simply scroll down to reveal it.

Scroll Tablets all models - FAQ
http://scrolltabletforum.co.uk/site/viewforum.php?f=42

What is android:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&p=22274#p22277

Some basic information about android tablets:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757#p22283

How easy is it to Mod my Tablet?:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757#p22288

What is ClockworkMod (CWM) and what version do I need:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757#p22289

How do I get ClockworkMod onto my tablet? (Root required):
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757#p22309

How do I create or restore a backup using ClockworkMod?:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757#p22311

What is SDK and How do I get it ?:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757#p22313

What is ADB and how do I use it?:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757#p22314

How do I choose the right Rom/Image?:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757#p22315

What do I do if it all goes wrong?:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&start=10#p22316

What Does Root Give Me?:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&start=10#p22325

An introduction to Ice Cream Sandwich:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&start=10#p22804

Android Commander:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&start=10#p23065

Some useful links:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&start=10#p23091

An introduction to Dropbox:
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&start=10#p23093

An introduction to Droid Explorer
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&p=23157#p23157

Can I put GPS on my Scroll tablet?
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&p=23221#p23221

What is Livesuite, where can I get it and how do I use it?
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&p=23262#p23262

How to hack an Allwinner A10 powered tablet
http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&start=10#p23320

Your Questions answered viewforum.php?f=42

Welcome to the “Scrolltabletforum.” There are more than 2,800 members on this forum and it is growing every day providing a wealth of information to help you learn to grow in confidence and answer your questions. Sometimes it is difficult to find the specific help and advice you are looking for until you know where to ask your questions and where to look on this forum for the answers. It is much easier if you know what the forum rules are as if you don’t abide by them, at best you won’t get the help you seek and at worst you may be banned, so if you haven’t read the rules yet please do so now, they are here: viewtopic.php?f=46&t=1454

If you have never been a forum member before you really do need to learn about the forum etiquette which not only makes it easier for you and for others but also helps avoid the risk of upsetting other forum members by inadvertently making it difficult for them because you might Hi-jack a Thread.

What does Hi-jacking a thread mean?

When you explore the Forum you will see many differently headed subjects. When you click on a subject it will access the member’s posts relating to that subject. The Opening Post is usually made by the Topic creator and members should only make further posts which are relevant to the Opening Post. The primary subjects are called Topics and indicate what the posts are about, and the posts within the primary subject are called threads, which are posts that relate to the topic. If you make an unrelated post inside the (wrong) topic and others respond to this, that thread soon becomes confused and difficult to follow. This is called Hi-jacking the thread which is seen as bad practice and if you repeatedly cause this you may receive a warning from one of the Moderators.

What is a moderator?

A moderator (often shortened to mod) is a member of the forum who voluntarily gives their time in maintaining the flow of topics by editing or deleting unrelated posts and generally keeping an eye on things to help keep the forum running smoothly. A moderator has the authority to edit or if necessary delete a members post and in extreme cases to ban a member either temporarily or permanently if that member persistently ignores the forum rules. A moderator can also be a developer.

What is a developer?

A developer (often shortened to dev) is a member of the forum who voluntarily gives their time in creating and modifying a range of mobile operating system images and software applications so that members are able to safely modify their mobile devices in the knowledge that help is at hand should they get into trouble.

How to post on the forum for the very first time.

Before you make a post for the very first time it is important that you use the search engine which is highlighted within a red-bordered rectangle in the top right-hand corner of the page to search for a topic relating to your post. You should always ensure that you give sufficient and accurate information in your post to be certain that readers will understand exactly what you are talking about. A post which says “My tablet doesn’t work can you help.” Will not generate much of a response, whereas: “My Scroll Excel A10 allwinner tablet won’t play video’s anymore.” Is much more helpful and readers will be greatly more informed when making their answer.
If you can’t find a topic which suits your post straight away then try looking at the Board Index which is found in the top left-hand corner of the page just beneath the blue tabulated bar. Clicking Board Index will show you an overview of all the categories available. Clicking on a category will show all the topics within the category and clicking on the topic will access all the posts within that topic.

Starting a new Topic.

You should only ever consider starting a new topic after you have thoroughly searched the forum to make sure that nothing already exists on the subject you wish to discuss. You may create a new topic only within the categories available from the Board Index

New Member Introductions.

There is a section for new members to say hello which can be found here: viewforum.php?f=20 please do make a post here to introduce yourself to the Forum but please do not post any requests for help here as they will be ignored by most members.

You may find your question has been already answered here: viewforum.php?f=42

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What is Android

‘Some information is sourced from Wikipedia’

Android is based on a Linux kernel, with middleware, libraries and APIs written in C and application software running on an application framework which includes Java-compatible libraries based on Apache Harmony. Android uses the Dalvik virtual machine with just-in-time compilation to run Dalvik dex-code (Dalvik Executable), which is usually translated from Java bytecode.

The main hardware platform for Android is the ARM architecture. There is support for x86 from the Android x86 project, and Google TV uses a special x86 version of Android.
Android's kernel is based on the Linux kernel and has further architecture changes by Google outside the typical Linux kernel development cycle. Android does not have a native X Window System nor does it support the full set of standard GNU libraries, and this makes it difficult to port existing Linux applications or libraries to Android.

Android is developed by the Open Handset Alliance, led by Google, and a consortium of hardware, software, and telecommunication companies devoted to advancing open standards for mobile devices.
Android has a large community of developers (“devs”) who write applications ("apps") that extend mobile device functionality.
Apps can be downloaded from third-party sites or through online stores such as Google Play (formerly Android Market), which is an app store run by Google.

The Android Open Source Project (AOSP) is led by Google, and is tasked with the maintenance and development of Android.
According to the project "The goal of the Android Open Source Project is to create a successful real-world product that improves the mobile experience for end users." AOSP also maintains the Android Compatibility Program, defining an "Android compatible" device "as one that can run any application written by third-party developers using the Android SDK and NDK", to prevent incompatible Android implementations. The compatibility program is also optional and free of charge, with the Compatibility Test Suite also free and open-source.

Android has been updated frequently since the original release of "Astro", with each fixing bugs and adding new features.
Each version is named in alphabetical order, with 1.5 "Cupcake" being the first named after a dessert and every update since following this naming convention.

Recent releases

• 2.3 Gingerbread refined the user interface, improved the soft keyboard and copy/paste features, better native code support (which improves gaming performance), added SIP support (VoIP calls), and added support for Near Field Communication.

• 3.0 Honeycomb was a tablet-oriented release which supports larger screen devices and introduces many new user interface features, support for multi-core processors, hardware acceleration for graphics and full system encryption. The first device featuring this version, the Motorola Xoom tablet, went on sale in February 2011.

• 3.1 Honeycomb, released in May 2011, added support for extra input devices, USB host mode for transferring information directly from cameras and other devices, and the Google Movies and Books apps.]

• 3.2 Honeycomb, released in July 2011, added optimization for a broader range of screen sizes, new "zoom-to-fill" screen compatibility mode, loading media files directly from SD card, and an extended screen support API. Huawei Media-Pad is the first 7 inch tablet to use this version.

• 4.0 Ice Cream Sandwich, announced on October 19, 2011, brought Honeycomb features to smart-phones and added new features including facial recognition unlock, network data usage monitoring and control, unified social networking contacts, photography enhancements, offline email searching, app folders, and information sharing using Near-Field-Communication.
Android 4.0.4 is the latest Android version that is available to phones.
The source code of Android 4.0.1 was released on November 14, 2011.


• 4.1 Jellybean, On June 27, 2012, at the Google I/O conference, Google announced Android 4.1 (Jelly Bean). Based on Linux kernel 3.1.10, Jelly Bean is an incremental update with the primary aim of improving the user interface, both in terms of functionality and performance. The performance improvement involves "Project Butter", which uses touch anticipation, triple buffering, extended vsync timing and a fixed frame rate of 60fps to create a fluid and "buttery"-smooth UI. Android 4.1 Jelly Bean was released to AOSP on July 9, 2012, and an OTA update for the Nexus 7 to Android 4.1.1 was released on July 11, 2012, making it the first device to run Jelly Bean.

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Some Basic information about android tablets.

(Some information sourced from Wikipedia)

An android tablet is a communication and multimedia device that runs using an android operating system. These tablets are the latest generation of portable computer technology with immense connectivity capabilities and resolution. Like a desktop PC, an android tablet PC is made up of component parts: a Central Processor Unit, (CPU) a Graphics Processing Unit, (GPU) memory chips both Read Only Memory (ROM) and Random Access Memory (RAM), the android operating system, a display screen and a battery. This is of course a much simplified description but it helps us understand what these things are when we are talking about our tablets. It is normal for a tablet to get warm in use as both the battery and the processors generate heat when in use.

Memory

The type of memory chips used on an android tablet are often referred to as being DDR.
This stands for double data rate which nowadays has replaced the older SDR chips which were single data rate. Tablet memory is usually divided or partitioned into sections which are then used for different purposes so you may be disappointed to discover that a tablet advertised as having 4Gig memory may only have a fraction of that available for your apps as the rest is taken up by the android system and preinstalled apps necessary to make the tablet work.

Display Panels

Tablet PC’s are made with various touch-screen display panels each differing in the way they work, their screen resolution, toughness and their quality. The two types you are most likely to come across are resistive and capacitive in operation.
A resistive touch-screen panel comprises several layers, the most important of which are two thin, transparent electrically-resistive layers separated by a thin space. These layers face each other, with a thin gap between. The top screen or the screen which experiences our touch has a coating on the underside surface of the screen. Just beneath it is a similar resistive layer on top of its substrate. One layer has conductive connections along its sides, the other along top and bottom. A voltage is passed through one layer, and sensed at the other. When an object, such as a fingertip or stylus tip, presses down on the outer surface, the two layers touch to become connected at that point: The panel then behaves as a pair of voltage dividers, one axis at a time. By rapidly switching between each layer, the position of a pressure on the screen can be read.

A capacitive touch-screen panel consists of an insulator such as glass, coated with a transparent conductor such as indium tin oxide (ITO). As the human body is also an electrical conductor, touching the surface of the screen results in a distortion of the screen's electrostatic field, measurable as a change in capacitance. Different technologies may be used to determine the location of the touch. The location is then sent to the controller for processing. Unlike a resistive touch-screen, one cannot use a capacitive touch-screen through most types of electrically insulating material, such as gloves; one requires a special capacitive stylus, or a special-application glove with an embroidered patch of conductive thread passing through it and contacting the user's fingertip. This disadvantage especially affects usability in consumer electronics, such as touch tablet PCs and capacitive smart-phones in cold weather.

Display Panel quality

The screen size is one of the first things that a tablet buyer looks for. But what most lay users overlook is the technology behind the display. A salesman will throw seemingly confusing terms such as TFT, LCD, AMOLED, OLED, SLCD at the customer. Here's a list of the different types of mobile displays and an explanation of the technology behind them.

TFT LCD Display: Thin film transistor liquid crystal display (TFT LCD) is a variant of liquid crystal display (LCD). It uses thin-film transistor (TFT) technology to enhance image quality. It is the most common display technology used in mobile phones. It offers better image quality and higher resolutions as compared to earlier generation LCD displays. The only limitations are narrow viewing angles and poor visibility in direct light or sunlight. Further, large TFT displays consume more power and hence, are not battery-friendly. As this display technology is cheaper to manufacture, these are most commonly found on budget devices.

IPS LCD: IPS (in-plane switching) LCD offers better display quality than normal TFT LCD display. It offers wider viewing angles and consumes less power, which in turn gives a much improved battery life. This technology is costlier than normal TFT LCD and hence, is found only on high-end devices. Apple uses a high resolution (640x960 pixels) version of IPS LCD in its iPhone 4, which is also called Retina Display because of its excellent picture quality.

Super LCD (SLCD): It is an upgradade of the erstwhile LCD technology. While both display technologies are efficient with colours and brightness, SLCD scores over AMOLED in very sunny conditions. SLCD gives warmer colour tones and has better colour definition than AMOLED (described below) display technology.

OLED Display: OLED (Organic Light Emitting Diode) display technology is much better than LCD display technology because of its excellent colour reproduction, faster response times, wider viewing angles, higher brightness and extremely light weight designs.

AMOLED Display: There is no substantial difference between the two - OLED AND AMOLED (Active-Matrix Organic Light-Emitting Diode). Active Matrix, which is a method for controlling individual pixels. AMOLED display technology is a type of OLED display for mobiles and is rapidly gaining popularity in high end smartphone segment. AMOLED screens include all the attributes of an OLED display like excellent colour reproduction, faster response times, wider viewing angles, higher brightness and extremely light weight designs. However, in terms of vibrancy and brilliance, AMOLED beats SLCD display technology. There are many high-end phones using this technolgoy like Nokia N8. If you can shell out money, it is suggested to opt for AMOLED display over TFT LCD.

Super AMOLED Display: Super AMOLED display technology is an advanced version of AMOLED display. Developed by Samsung, it is said to be the thinnest display technology in the market. Super AMOLED display is much more responsive than an AMOLED display. Samsung top-of-the-line Galaxy SII comes engineered with Super AMOLED display technology.

Retina Display: Retina Display is a term used by Apple for its high resolution (640x960 pixels) IPS LCD display technology used in iPhone4. The company calls it the Retina display because its pixels cannot be individually identified by a human eye, thereby making the display super sharp, text more crisp and pictures more clear.

Very cheap display panels may be made from plastic and prone to pick up scratches in everyday use whereas top end devices may use Gorilla Glass which features exceptional damage resistance to the scratches, drops, and bumps of everyday use.

Device Connectivity

Many tablet PCs have adopted the micro-usb standard which is also the virtual standard across most modern smart-phones. In many cases this may provide the means of charging the device and also of connecting external devices, or to connect to your PC. Currently the Scroll range of tablets uses the mini usb type of connection for external devices and to allow a trickle-charge - although use of the mains charger is recommended.
Many, but not all Scroll tablets, (usually those with only a single usb connection) require a special lead which is not always supplied with the tablet - to allow connection of slave devices such as Flash drive or external keyboard, although this special lead is not required for host devices such as your PC.

This special lead is called an “On The Go” lead or OTG and if your tablet only has a single usb socket then it is likely you will not be able to make external slave devices work without an OTG adaptor/lead as it is specially wired in a manner to trigger automatic switching inside the tablets usb circuitry to supply a host voltage supply to your slave devices. It is important to note that a current limit exists of 500ma which may not be sufficient to power an external hard drive so some power hungry external devices may need their own external power source to work properly or at all.

Data Communication:

Tablets usually communicate using either a mobile network supplier or wifi service. Not all tablets are mobile network enabled but some can use 3G mobile dongles and there are discussions on this forum about how to do this. Most tablets have WIFI connectivity and simply logging on to your ISP and entering your Service Set Identifier (SSID) is usually all you need to get connected.

The Battery:
There is a very comprehensive excellent article on the Forum written by Charlie here: Everything you wanted to know about Li-Ion batteries

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How easy is it to mod my android Tablet?

Modifying your tablet all depends on how much you know and what utility tools and software you have available to you.
Before you can start modding your tablet there are certain tools you will need to have that will allow you to really get under the bonnet of your tablet.
These are:
Software Developers Kit (SDK): http://developer.android.com/sdk/index.html

ClockworkMod Recovery: the correct version for your tablet is usually available through the devs on this forum if you ask them very nicely.

Livesuite: http://scrolltabletforum.co.uk/site/viewtopic.php?f=20&t=2757&p=23262#p23262
(Livesuite requires the correct usb drivers for your device, if the ones included with Livesuite do not work with your model tablet – alternatives are sometimes available from the devs on this forum if you ask them very nicely)

Optimised android Images: – These usually become available from the devs on this forum following Google announcing a new android version. If you ask the Devs very nicely, they may decide to make a ported version of the upgrade you desire for your model tablet. (These upgrades are predominantly installed using Livesuite or Clockwork Mod)

Build-Update zip files: - These are occasionally created by the Devs on this forum who may provide you with an update zip for your model tablet if you ask them very nicely.
(These are usually installed using ClockworkMod.)

WARNING: All modding is carried out solely at your own risk and may invalidate your warranty. Using these tools can irreparably break your tablet and turn it into a brick!

Most people who register with this forum do so because they want to modify/improve their tablet experience but to do so, apart from the tools above you also need to rely on the skills and generosity of the developers who produce modified/tweaked software and operating system images voluntarily.

If you do not feel confident to modify your tablet then don’t do it. If however you do decide to proceed then there are certain steps that should always be followed.

• Make a full backup of your tablet so you can go back if you change your mind, or something doesn’t work.
This can be done using ClockworkMod. (CWM)

• You can also optionally backup just your software (apps) using an app like Titanium Backup.
(available from the Google play store: http://tinyurl.com/chg7v42 )

• Obtain the android image you want to flash (Livesuite) or

• Obtain the update zip you want to update to using (CWM)

• Follow the instructions given to you by the dev.

Happy modding.

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What is ClockworkMod (CWM) and what version do I need

ClockworkMod is a software tool that allows you to flash your tablet with different ROMs (system Images) from the tablet’s SD-card (without using a PC once you have loaded the image on your tablet). This is handy for developers or those who like to play around with different modified ROMs. ClockworkMod is also a recovery program that is often used to apply updates or create a back up or restore a backup file

How do I tell which version I need

ClockworkMod is available from Google Play Store as a part of an app called Rom Manager. The writer of CWM has added a list of mobile devices and phones to this app which try to identify/match your device by reading build information from it. If your device is not included in this internal list (Currently there are no Scroll devices listed) then the program will tell you it will not work with your device.
However, luckily for us we have skilled devs voluntarily working hard to help you and if you identify your device accurately to them they will try to make a modified version of CWM for you and instruct you how to get it fully installed on your tablet.

NOTE: Simply downloading and installing ROM Manager from Google Play Store does not completely install CWM on your tablet and attempts to flash CMW from within ROM Manager will end in failure unless your device is recognised by the CWM software.

Alternatively: Whilst the link remains live you can download Clockworkmod Recovery For ICS (v5.5.0.4) installation for the Scroll Excel Only here: viewtopic.php?f=55&t=2155#p16314

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How do I get ClockworkMod onto my tablet? (Root required)
(Some information provided by XDAdevelopers)

In order to get CWM onto your tablet you need to locate a CWM version that is compatible with your specific device.
Scroll tablets are not currently supported by the marketed version of CWM.
We rely on devs to get ClockworkMod installed by asking them for a recovery.zip file to suit each particular model tablet and build.
Alternatively, it may be possible to flash a completely new system image which has been built to include CWM already in it.

Once you have located the correct CWM recovery.zip file for your device follow the guide below.


Warning: modding is carried out at your own risk. It may invalidate your warranty and may cause your tablet to no longer function correctly or at all.

General Requirements
• Scroll Android tablet
• Fully charged battery or at least 70% battery left to avoid power failure during installation.
• Backup of your personal files and data
• Requires root

1. Connect your Scroll tablet to your PC.
2. Copy the update.zip to the root of your tablet’s internal memory.
3. Disconnect your tablet from your PC.
4. Switch off your tablet completely.
5. Reboot your tablet into stock recovery. You can do this by holding down the “Power” button while keeping the “Volume Up” (or Menu) button pressed at the same time.
(NOTE Some later or customised Roms may require you to hold the power button and the menu button instead of the volume+ )
The tablet will try detecting any update files and you should see “Recovery key detected” displayed on the screen, at which point you can release the buttons. If the recovery key is not detected, try selecting “apply update.zip” from the recovery menu and flash update.zip.
6. Wait for several minutes to allow the process to finish.
7. At the end of the installation, your tablet will have ClockworkMod Recovery.

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Alternatively: Whilst the link remains live you can download Clockworkmod Recovery For ICS (v5.5.0.4) installation for the Scroll Excel Only here: viewtopic.php?f=55&t=2155#p16314 read the topic on How to:

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How do I create or restore a backup using ClockworkMod?

Requirements:

• You must have CWM installed on your tablet.
• Make sure your battery has plenty of life to avoid power failure during the backup.
• An installed external sdcard with sufficient free space to hold your backup

Guide:

Switch on your tablet by pressing both the Volume+ key and Power Key together and hold them until you enter the recovery menu. Note: if you have previously already modified your tablet’s firmware then you may have to hold a different key combination such as the menu key or the Home key and the power key in order to enter the recovery menu.

When in recovery menu you will see:

CWM-based Recovery v*.*.*.* (where * equals your version)

- Install zip from sdcard
- Wipe data/factory reset
- Wipe cache partition
- Backup and restore
- Mounts and storage
- Advanced

Using the volume key, navigate to line 4 “backup and restore”
Select this by pressing the power button and you will then be presented with another menu.

Nandroid

- Backup
- Restore
- Advanced restore
- Backup to internal sdcard
- Restore from internal sdcard
- Advanced restore from internal sdcard

Make sure - backup (option1 in the list) is selected then press the power button.
The tablet will now start the backup process which may take 3 or 4 minutes or so.

As the process is completed you will see:

CWM-based recovery v *.*.*.*
SD Card space free: *****
Backing up boot image...
Backing up recovery image...
Backing up system...
Backing up data...
Backing up .android_secure...
Backing up cache...
Backing up sd-ext...
Generating md5 sum...

Backup complete!

When complete you will see the options list has changed to include “reboot system now” as the first option:

- reboot system now
- Install zip from sdcard
- Wipe data/factory reset
- Wipe cache partition
- Backup and restore
- Mounts and storage
- Advanced

Press the power button to reboot your tablet
To restore a previously made backup follow the same steps but choose Restore instead of backup.

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What is SDK and How do I get it ?

SDK stands for “Software delevopers kit” it is available from here: http://developer.android.com/sdk/index.html
Where you will also find everything you need to know about how to use it and what it is capable of.

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What is ADB and how do I use it?

ADB stands for Android Debug Bridge and you can find out all about it and what it is used for here: http://developer.android.com/guide/deve ... s/adb.html

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How do I choose the right Rom/Image?

This is not always apparent as some Roms/images may have been tweaked and optimised to achieve a particular outcome, so you need to know what you are most likely to use your tablet for before you can properly decide which type of Rom/image to choose.
Some people simply want their tablets to go faster whereas someone else may want to ensure their tablet plays video as smoothly and reliably as possible.

What you should realise is that there is usually a price to pay for differing results. For instance, a tablet which has everything tweaked to its absolute maximum in speed and performance will probably have more instability and have a worse battery life than a tablet which has been optimised to work reliably at a lower speed.

Some people simply want the latest software version to try out and see how well it performs on their particular tablet, but remember that not every rom/image can simply be flashed to your tablet. You must first of all make sure it is compatible with your specific tablet model. If you flash an incompatible rom you are likely to end up with a non working tablet.

A typical example of this would be someone flashing a newer rom/image onto an older resistive screen tablet only to discover that the new rom does not contain resistive touch-screen drivers but capacitive drivers for a capacitive touch screen. Such a mistake would leave you with a tablet you may not be able to communicate with any more.

So in order to choose the right rom/image you need to read the related topics and threads which are about your particular model tablet and also read the “How To’s” for your specific device as they become available.
If you are in any doubt ask one of the devs on the forum otherwise you may just turn your bloved tablet into a brick.
Maybe useful as an expensive door stop though!

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