Anyone purchase a Scroll Excel recently?

[suggsy89]

Here is your recovery log.... It may shed some light...

Code: Select all

Starting recovery on Sun Apr 22 20:55:38 2012
cannot open fb0: No such file or directory
CWM-based Recovery v5.0.2.8
recovery filesystem table
=========================
  0 /tmp ramdisk (null) (null)
  1 /boot ext4 /dev/block/nandb (null)
  2 /cache ext4 /dev/block/nandg (null)
  3 /data ext4 /dev/block/nandd (null)
  4 /emmc vfat /dev/block/nandh (null)
  5 /recovery ext4 /dev/block/nandf (null)
  6 /sdcard vfat /dev/block/mmcblk0p1 /dev/block/mmcblk0
  7 /sd-ext auto /dev/block/mmcblk0p2 (null)
  8 /system ext4 /dev/block/nandc (null)

W:Unable to get recovery.fstab info for /datadata during fstab generation!
I:Completed outputting fstab.
I:Processing arguments.
I:Checking arguments.
I:device_recovery_start()
Command: "/sbin/recovery"

ro.secure=0
ro.allow.mock.location=1
ro.debuggable=1
persist.service.adb.enable=1
ro.build.id=GRK39F
ro.build.display.id=GWK74
ro.build.version.incremental=189904
ro.build.version.sdk=10
ro.build.version.codename=REL
ro.build.version.release=2.3.7
ro.build.date=Sat Dec 17 00:27:46 JST 2011
ro.build.date.utc=0
ro.build.type=eng
ro.build.user=fun
ro.build.host=ubuntu
ro.build.tags=test-keys
ro.product.model=Novo7 Advanced
ro.product.brand=allwinner
ro.product.name=novo7a
ro.product.device=a10
ro.product.board=crane
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=Ainol
ro.product.locale.language=en
ro.product.locale.region=US
ro.wifi.channels=
ro.board.platform=sun4i
ro.build.product=a10
ro.build.description=soju-user 2.3.6 GRK39F 189904 release-keys
ro.build.fingerprint=google/soju/crespo:2.3.6/GRK39F/189904:user/release-keys
keyguard.no_require_sim=true
dalvik.vm.dexopt-flags=m=y
dalvik.vm.heapsize=32m
qemu.sf.lcd_density=160
ro.additionalmounts=/mnt/nand;/mnt/usb
ro.opengles.version=131072
ro.vold.switchablepair=/mnt/sdcard,/mnt/nand
wifi.interface=wlan0
wifi.supplicant_scan_interval=45
ro.rommanager.developerid=cyanogenmod
ro.url.legal=http://www.google.com/intl/%s/mobile/android/basic/phone-legal.html
ro.url.legal.android_privacy=http://www.google.com/intl/%s/mobile/android/basic/privacy.html
ro.com.google.clientidbase=android-google
ro.com.android.wifi-watchlist=GoogleGuest
ro.setupwizard.enterprise_mode=1
ro.com.android.dateformat=MM-dd-yyyy
ro.com.android.dataroaming=false
ro.modversion=CyanogenMod-7.2.0-RC0-A10-KANG
ro.kernel.android.checkjni=1
ro.setupwizard.mode=OPTIONAL
net.bt.name=Android
net.change=net.bt.name
dalvik.vm.stack-trace-file=/data/anr/traces.txt
ro.factorytest=0
ro.serialno=
ro.bootmode=unknown
ro.baseband=unknown
ro.carrier=unknown
ro.bootloader=unknown
ro.hardware=sun4i
ro.revision=0
ro.emmc=0
init.svc.recovery=running
init.svc.adbd=running

I:Checking for extendedcommand...
active fb swap failed: Bad file number
I:Skipping execution of extendedcommand, file not found...


Right now im running your build ported from your dumps... When i switched on the tablet, the display was very dim...
That may be the issue, so it just could be the display driver needs swapping...

[suggsy89]

The problem is the driver modules are in the boot.img so i can modify that, but you cant flash it, because you cant see CWM

So there is a risk of trying to dd it to the device without f-ing it up...

ill keep trying

PS it looks like you have a different camera module in your Excel, as mine does not work with your build.

Since you have a CWM backup i would like to see that though, i could flash it and see if CWM is displayed correctly or not.

[ptbw]

Try to lsmod while in recovery... I think it will fail though

lsmod returns nothing in recovery

How did you do that?

I grabbed the CM source for gingerbread, edited it and build a generic recovery executable and pushed it to the recovery partition.

My recovery exe is here.http://dl.dropbox.com/u/17486207/recovery.zip be careful to maintain the symbolic links in the sbin directory.

I am quite comfortable with compiling and linking what I am not familiar with is the Android boot process or the Excel.

looks like you have a different camera module in your Excel

Hmmm at least one hardware difference, could be a different display module as well....

Does recovery use a different boot image? At what point does the tablet decide to go into recovery, is it the bootloader or before that the menu+power keys are read?

[suggsy89]

I can lsmod in recovery no problem.
I think you will need a different recovery, you might be able to build one for yourself, I can't build from source myself but it sounds like you know what your talking about when it comes to that.

[ptbw]

I can lsmod in recovery no problem.
...

Some small success

2012-04-23-458.jpg

.
I think this confirms that the drivers in recovery are not suitable for this version of the tablet.

I copied the disp, lcd and hdmi modules to /lib/modules in recovery from /drv on the system partition.

Code: Select all

~ # lsmod
lcd 2559 0 - Live 0xbf051000
hdmi 14243 0 - Live 0xbf047000
disp 217725 3 lcd,hdmi, Live 0xbf000000


What do you see when you LSMOD in recovery please?

The downside is that apart from 4 x the display none of the buttons work

Interesting that taking a screen shot in DDMS does produces a single image.

device-2012-04-23-115754.png

Investigation continues....

[suggsy89]

You champion, well nearly there, you probably now need to inject the driver for the hardware keys. Obviously that will be in the modules folder aswell.

[ptbw]

Hurrah!

device-2012-04-23-130015.png

Mitre or Suggsy. Know anything about the missing bitmaps?

THIS IS COMPLETELY UNTESTED, BUT IT LOOKS GOOD

[ptbw]

Found the missing bit maps.....

device-2012-04-23-133146.png

Going to do some testing now....

To those with the latest Scroll Excel's (build 97F2-D1-H1-H01-1748.20120307) I still would like a copy of your nandf partition.

Check the build number under Settings/About Device.

Perform the backup using adb shell to the removable sd card with the tablet in normal boot mode and USB debugging enabled.

Code: Select all

dd if=/dev/block/nandf of=/mnt/extern_sd/nandf.img


Zip it up and use drop box or similar to send the file.

Sign up link if you don't have drop box http://db.tt/i8eyOW6l

Cheers

[suggsy89]

So in theory that is a fully working image?

[worzzil]

I've (hopefully!) managed to get the recovery image I made zipped and into Dropbox.
http://dl.dropbox.com/u/75192516/recovery-dump.zip

Hope that helps, if I did it wrong I'm happy to try again, new stuff to me.

I also noticed when I first connected the Scroll and installed the drivers it came up as a drive named "ezeetab10c" and none of the CWM would install at all. I uninstalled the drivers and did a factory reset on the scroll and Windows named it E and all the CWM stuff installed fine, just didn't work.

Also, the only thing that changes after trying to boot into CWM is that the time and date has reset to default when booting normally. Happened every time.