[ROM] Leaked early ICS for Lenovo Ideapad A1

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gmarkall

gmarkall

Retired Recognized Developer
Dec 22, 2010
378
559
London
There's been some discussion recently of the leaked ICS ROM for the Lenovo A1, which is a little difficult to install, because Clockworkmod won't flash it due to failed assertions. I've modified it so that it can be flashed through CWM.

Be warned that it will overwrite U-Boot, the kernel, and the RAMdisk (these are not usually backed up by CWM 5.0.2.7). If you've installed it, and you want to go back to your old backup (very likely as you'll soon get tired of nothing working properly), use the following steps:

1. Boot into recovery
2. Restore your backup using the normal CWM functionality
3. Install ub-fastboot.zip from this post.
4. Reboot into fastboot mode and restore the correct kernel and ramdisk for your ROM with:

Code: 
fastboot flash inand-kernel <kernel>
fastboot flash inand-ramdisk <ramdisk>

5. Reboot.

If you don't know what the correct kernel/ramdisk is for your ROM then I'd advise you not to try using this ROM.

DISCLAIMER

There is no guarantee of anything going right if you install this ROM. I'll try and help with problems (and I'm sure other people will too) but if things get messed up it'll be your fault. Don't take the risk without understanding it and being comfortable with it.

Download: here.
 
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monsieurtalbot

monsieurtalbot

Senior Member
Aug 8, 2010
328
186
West Palm Beach
www.facebook.com
So now you've flashed ICS to your A1, but you can't use it. Duh. Everything is broken right now.

For those scared of using ADB commands during a restore to CM7/Stock gingerbread... Here's the stock RAMDISKS, and Kernel as CWM .Zips... [Links taken from the other A1 threads, stock kernel .zip by yours truly. ;-) ] Flash ONLY the ones you need before you flash your Stock rom/CM7 rom/nandroid restore. In this order.

ROW 2375 / ROW 2525 builds ONLY RAMDISK
(1.){^^vv If you don't know which you're supposed to have, DO RESEARCH FIRST
ROW 2643 build only RAMDISK

(2.)Stock Kernel

(3.) Then Stock ROM/CM7 ROM (your choice) (skip step 2 if flashing a 4/28 or later CM7 build it includes a kernel.)

(4.)Fastboot bootloader mod
Click to expand...
Click to collapse
_________________________________________________________________________________________
Now if only we could get Wifi and USB working... That would be a decent start...

Weird part is, on the leaked one, the device name under settings is "Zoom2"
(haven't flashed this one yet, but I assume it's the same)

Makes me wonder if this is infact the real deal... or at least an attempt by a third party? (see post below)

Though it's nice to see it being possible. :)
 
Last edited:
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gmarkall

gmarkall

Retired Recognized Developer
Dec 22, 2010
378
559
London
monsieurtalbot said:
Weird part is, on the leaked one, the device name under settings is "xoom2"
(haven't flashed this one yet, but I assume it's the same)

Makes me wonder if this is infact the real deal... or at least an attempt by a third party?
Click to expand...
Click to collapse

It says "Zoom2" - that's an OMAP3 development kit that the hardware in the A1 is very similar to - they'll have started with the device-specific files for the Zoom2, and haven't bothered to change them yet. See http://www.omapworld.com/zoom.html
 
B

Brancaleone

Member
Feb 13, 2009
28
10
Anyone trying this rom - can you take a look if /proc/config.gz exist and if so - make an upload. I'm just curious, but don't want to waste my time .... :p
 
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gmarkall

gmarkall

Retired Recognized Developer
Dec 22, 2010
378
559
London
Brancaleone said:
Anyone trying this rom - can you take a look if /proc/config.gz exist and if so - make an upload. I'm just curious, but don't want to waste my time .... :p
Click to expand...
Click to collapse

I'm not running the ROM right now, but I tried extract-ikconfig on the kernel and it didn't find a config - I don't know how reliable that tool is though, since I've never used it before.
 
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I

isime13

Member
Feb 17, 2012
19
6
Samsung Galaxy S20 FE
I've tested the update on my device. Wifi and sound output are working now. The build props show a Lenovo device now (ro.build.fingerprint=Lenovo/IdeaTab_A1107/A1107:4.0.4/MR1/eng.user.20120503.193509:eng/test-keys). The main issue seems to be that the Google Apps are not working (including Play).

EDIT: The problem with Google Play seems to be caused by the file permissions of drmserver. After this, I can download apps from Play Store (but only until rebooting):
Code: 
adb remount
chmod 777 /system/bin/drmserver
./system/bin/drmserver&
 
Last edited:
M

Magnusmarshall

Senior Member
May 2, 2012
356
91
Confirmed wifi works and sound works fine.

Google store not so much but looks to be a quick fix.
Gps seems to be working but haven't had time to test.

Mounting sd card and usb mounting are messed up.

Also for anyone considering this 4.03 they should know its based on a phones os and not a tablet os.
 
D

drozda

Member
Apr 12, 2012
43
20
I can't update on 2GB A1 - there is an error in the middle of process.
The first version was running ok.
 
dawkon13

dawkon13

Senior Member
Sep 11, 2011
541
437
27
Krotoszyn
CWM log:

size:3833856assert failed: run_program("/tmp/fuse:, "mbr", "/tmp/mbr2GB.img")
E;Error in /sdcard/update.zip
(status 7)
Installation aborted

Can you help me? ;)
 
B

Brancaleone

Member
Feb 13, 2009
28
10
This Update doesn't work with cwm and I wouldn't recommend to anyone flashing it. It screwed up my whole file system including rescue partition and took me several hours to get rid of it. On top, it doesn't contain config.gz. :(
 
M

Magnusmarshall

Senior Member
May 2, 2012
356
91
Clearly this is not a actually preview from lenovo but rather a home-brew that does a decent job of getting many things working.

The first preview had a tablet based 4.03 and this supposed update has a phone 4.03 layout.

Still not bad just not from lenovo.
 
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  • 7
    gmarkall
    gmarkall
    There's been some discussion recently of the leaked ICS ROM for the Lenovo A1, which is a little difficult to install, because Clockworkmod won't flash it due to failed assertions. I've modified it so that it can be flashed through CWM.

    Be warned that it will overwrite U-Boot, the kernel, and the RAMdisk (these are not usually backed up by CWM 5.0.2.7). If you've installed it, and you want to go back to your old backup (very likely as you'll soon get tired of nothing working properly), use the following steps:

    1. Boot into recovery
    2. Restore your backup using the normal CWM functionality
    3. Install ub-fastboot.zip from this post.
    4. Reboot into fastboot mode and restore the correct kernel and ramdisk for your ROM with:

    Code: 
    fastboot flash inand-kernel <kernel>
fastboot flash inand-ramdisk <ramdisk>

    5. Reboot.

    If you don't know what the correct kernel/ramdisk is for your ROM then I'd advise you not to try using this ROM.

    DISCLAIMER

    There is no guarantee of anything going right if you install this ROM. I'll try and help with problems (and I'm sure other people will too) but if things get messed up it'll be your fault. Don't take the risk without understanding it and being comfortable with it.

    Download: here.
    View
    5
    X
    xbdesign
    bootable CWM

    thebreezer said:
    Now this is my problem. When try to install CWM (renamed to update.zip). Power volume-, I get the android with the arrow coming out of the box, but I get no progress bar, then it just shuts down. What can I do? Only want to revert back to stock. Seems many people are having this same problem and it seems it only happens on certain tablets. All this happens after I installed ICS. Thanks for your help.
    Click to expand...
    Click to collapse

    You will have to use one bootable sd Card to get out of that trouble.
    Because the most of people don't have a Linux Distribution installed, I made one iso File to help you start CWM from SD-Card without having a Linux.

    Follow those Instructions to do that:

    1. Download Win32DiskImager.
    2. Download mine A1_BootSD.iso
    3. Plug one micro SD-Card (it would be formated later on!)
    4. Start Win32DiskImager.exe
    5. Image File: A1_BootSD.iso , Device: your SD-Card and use "Write" to start
    6. Put your SD-Card in A1
    7. Start A1 with Power and Volume(-)
    View
    4
    tinybeetle
    tinybeetle
    If anyone is interested in installing a clean copy of Lenovo's ICS on their A1, gmarkhall has posted instructions and downloads on Lenovo's forum.

    The process creates a bootable microSD. You boot from it twice, installing three different files it has loaded on the microSD. When done, you have a clean A107I0_A404_001_013_0116_US version of ICS on your tablet.

    http://forums.lenovo.com/t5/IdeaPad-IdeaTab-Slate-Tablets/GUIDE-A1-and-A1107-Unbrick-fix-full-factory-restore/td-p/841373

    Great job Graham!
    View
    4
    B
    Bewahn
    Seems like there is a new leaked version of ICS for our A1.

    Link to german forum:
    http://www.android-hilfe.de/lenovo-ideapad-a1-forum/250004-p-ics-1-2-kommt.html

    I didn't try it and can't say anything about it but wanted to inform you :)


    UPDATE: I couldn't resist and just installed it. You have to install it from an external SD using the stock recovery. The sound is a bit messed up (constant whisteling and it sounds horrible at too high volume) but apart from that it seems quite usable.
    There seems to be a problem using the external SD but there is a zip that fixes this issue in the german forum:
    http://www.android-hilfe.de/lenovo-ideapad-a1-forum/250004-p-ics-1-2-kommt-4.html#post3372361

    2nd UPDATE: There seems to be a problem with app2sd. When trying to install the app "Piwik Mobile" it fails and I get the following messages in logcat:
    E/Vold ( 1139): Error opening devmapper (No such file or directory)
    E/Vold ( 1139): ASEC device mapping failed (No such file or directory)
    E/PackageHelper( 2614): Failed to create secure container smdl2tmp1
    E/DefContainer( 2614): Failed to create container smdl2tmp1
    Click to expand...
    Click to collapse
    Could be a kernel issue...
    View
    4
    I
    isime13
    An update for the ICS ROM was posted in a German forum. Wifi is said to be working now. You can download it here. To use it, you need to flash the original ICS firmware (A107_.rar) and then install the update.zip with the stock recovery from an external sd card.
    View

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