Lenovo IdeaTab a2107

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ichi go

Senior Member
Apr 28, 2010
142
65
Google Pixel 6
Hello everyone,

I bought this tablet on ebay and it seems that the ROM preinstalled is a test ROM.
I searched the web to find a custom ROM but I couldn't find much info.
I found the way to root the tablet but that's all.
Is there anyone who can indicate me a link to a stock rom or a good custom one?
Thanks for those who will read and help!
 

mmis

Member
Feb 5, 2009
16
2
What do you mean by TEST ROM?!!! this is ridiculous, I have the tablet and it's working like a charm even I received over air update yesterday, the only odd is that I can't use it as a phone because Lenovo has no license yet for that it's available only in the Chinese version, and I think this will be solved later when they start launching their mobile phones all over the world.
 

ichi go

Senior Member
Apr 28, 2010
142
65
Google Pixel 6
Hello mmis,

Test rom is not the correct terms but I didn't know how to call that ! ;)
The problem is that every widget I put on the desktop is loading but never display anything.
The information in "About tablet" are the following :

Model number : IdeaTab A2107A-H
Android Version : 4.0.3
Baseband version : MAUI.11AMD.W11.50.SP.V13, 2012/05/25 01:09
Build number : A2107A-H_S307_120605

If I search for system updates, it doesn't find anything. If I click on firmware update, the settings FC.
I made a factory reset but no luck.
That's why I thought it wasn't a stable version.
 

mmis

Member
Feb 5, 2009
16
2
As long as you tried the factory reset with no luck, I think in your case its better to get back to Lenovo customer service or your local dealer if it's under warranty, they should be able to help you. it's a new device in the market and it will be difficult to find custom ROM for a while or even someone to give model-specific help. Good Luck :)
 
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ichi go

Senior Member
Apr 28, 2010
142
65
Google Pixel 6
Sure, no problem !
After several hours of search and difficulties to register onto Chinese websites ;)
I managed to find the attached file. I take no credit for the tool because it was developped by someone else (SNARL I guess)
It was missing the superuser apk inside so I put it back and also translate the steps to English.

Here are the steps :
- Connect the tablet in Debug USB mode
- Launch root.bat
- The device will reboot at each of the 3 steps

If you need more info, don't mind to ask!

Here is the link of the original thread :
http://3g.lenovo.com/thread-69003-1-1.html
 

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Last edited:

robh41

New member
Nov 17, 2012
1
0
LePad Chinese Model A2107A-H

I have a Chinese issue model of the A2107A-H that has the dual sim card cellular feature. I've been trying to get it rooted to get rid of the Chinese apks on it, but normal rooting software has not been successful so far, including the one posted here from SNARL via Ichi go's post. I get a "device not found" error message and in device manager on my PC it indicates that there is no driver installed for the device. I have "debug" turned on and the USB link seems to be working as I can see file folders on the device, but the rooting software will not run. I've tried several of the most well known methods with no luck. Any ideas on this would be appreciated and in particular, if there is a driver I need to have installed to get the rooting software to work??

TIA!!!

Rob
 

mmis

Member
Feb 5, 2009
16
2
First of all many thanks to you ichi go it was very easy to root this device as instructed, but as the one I have does not have the phone calling capability, I replaced the phone.apk with different one but now the device does not recognize the sim card at all, I tried to push many versions of phone.apk to system folder with no luck, it seems even if I put the apk in the system folder the device will not launch it at all, could you please help me in that.
 

junooni

Senior Member
Jul 2, 2007
312
6
Dubai
I've had this tablet for a while and love it. I just got the OTA update and its downloading now.

I'm a also keen on rooting it and inns installing a custom ROM. I guess once its a bit more common, we can expect a dedicated Dev community here on XDA
 

junooni

Senior Member
Jul 2, 2007
312
6
Dubai
The update failed to install. I'm not rooted or anything but upon restart it gave a signature verification error.
Any way to fix this?

Edit: got it! was a path error since i had changed the default storage.

but i can't figure out any changes :(
 
Last edited:

ichi go

Senior Member
Apr 28, 2010
142
65
Google Pixel 6
I have a Chinese issue model of the A2107A-H that has the dual sim card cellular feature. I've been trying to get it rooted to get rid of the Chinese apks on it, but normal rooting software has not been successful so far, including the one posted here from SNARL via Ichi go's post. I get a "device not found" error message and in device manager on my PC it indicates that there is no driver installed for the device. I have "debug" turned on and the USB link seems to be working as I can see file folders on the device, but the rooting software will not run. I've tried several of the most well known methods with no luck. Any ideas on this would be appreciated and in particular, if there is a driver I need to have installed to get the rooting software to work??

TIA!!!

Rob

How does your device appear in the device manager? For sure, the adb driver isn't installed. If it's not the case, download android sdk and then the Google USB driver in the extra section.

Sent from my HTC Desire using xda app-developers app
 

ichi go

Senior Member
Apr 28, 2010
142
65
Google Pixel 6
First of all many thanks to you ichi go it was very easy to root this device as instructed, but as the one I have does not have the phone calling capability, I replaced the phone.apk with different one but now the device does not recognize the sim card at all, I tried to push many versions of phone.apk to system folder with no luck, it seems even if I put the apk in the system folder the device will not launch it at all, could you please help me in that.

I didn't try to make phone calls for now with it but I will test and come back to you if I find something interesting.

Sent from my HTC Desire using xda app-developers app
 

syserr

Senior Member
Aug 16, 2012
459
365
Idaho
FM Tuner - perfect for in-dash?

The in-dash car tablet people should be happy to hear the A2107 has an FM Tuner. It's one of the few tablets that has a radio tuner, and the only modern 7" that I know of. I just ordered one. I will report back.
 

ichi go

Senior Member
Apr 28, 2010
142
65
Google Pixel 6
The Chinese stock rom I installed has the phone ability and that works very well! The problem of this stock rom is that the Google services aren't there. I'm trying to find a way to install the zip file but I need to know the exact path of the recovery partition.
I tried to find it with the cat /proc/emmc command but this partition isn't listed.
If anyone has an idea... :)

Sent from my HTC Desire using xda app-developers app
 

mmis

Member
Feb 5, 2009
16
2
So I understood that you managed to flash the Chinese stock ROM, am I right?!! please tell me how to do as I am facing serious problems with my device, I managed to root and then I changed the phone.apk (what the hell I was thinking of) and now I have the the error message android.process.acore stopped working and sometimes the sittings force closed, I tried to re root, factory reset and deleting cache of almost everything with no use, even I contacted the Lenovo CS to reinstall the original firmware, I think they will charge me for that :crying:
by the way I don't have contacts anymore (I installed it manually) and the most impressive thing that the device doesn't recognize the SIM card (I cleverly deleted the original one phone.apk :silly:) and what ever apk I push into the system/app folder and change the permissions it will not install after reboot.

So...what do you think guys?!! any help?
 
Last edited:

BloodSyphon

New member
Mar 21, 2011
4
2
I've confirmed this does work on the A2107-F.

I had some trouble with the ADB driver. I can't post links, so you will have to google it, but I used adb_driver_20110720.zip for the drivers. I forced it to install via Update Driver > Browse my computer > let me pick > have disk > pointed to the android_winusb.inf file > selected the thinkpad option, it was the bottom of the two.

I also had to manually turn the tablet back on after the first reboot, but it went fine after that.
 

valravn

Member
Nov 21, 2012
25
4
The Chinese stock rom I installed has the phone ability and that works very well! The problem of this stock rom is that the Google services aren't there. I'm trying to find a way to install the zip file but I need to know the exact path of the recovery partition.
I tried to find it with the cat /proc/emmc command but this partition isn't listed.
If anyone has an idea... :)

Sent from my HTC Desire using xda app-developers app

can someone show me where to get the rom?
in the chinese forum, i cant register, because lenovo login is buggy for me. maybe because of location,,
 

ichi go

Senior Member
Apr 28, 2010
142
65
Google Pixel 6
So I understood that you managed to flash the Chinese stock ROM, am I right?!! please tell me how to do as I am facing serious problems with my device, I managed to root and then I changed the phone.apk (what the hell I was thinking of) and now I have the the error message android.process.acore stopped working and sometimes the sittings force closed, I tried to re root, factory reset and deleting cache of almost everything with no use, even I contacted the Lenovo CS to reinstall the original firmware, I think they will charge me for that :crying:
by the way I don't have contacts anymore (I installed it manually) and the most impressive thing that the device doesn't recognize the SIM card (I cleverly deleted the original one phone.apk :silly:) and what ever apk I push into the system/app folder and change the permissions it will not install after reboot.

So...what do you think guys?!! any help?

Hi mmis,

I will upload tonight (if i have the time to) all the needed files to install the Chinese ROM (tools and procedure included).
Btw, I managed to install all the Google services and all is working well! The only thing is that the OS can only be put in English. All other languages are Chinese variants.
 

pemergency

Senior Member
Oct 13, 2009
141
111
Hi I just flash tablet with a chinesse rom A2107A_H_S121_120525 and right now the device don't turning on anymore. The flashing is still possible. So I need a stock rom please
 

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  • 26
    New links for ROMs

    ROMs uploaded on Dev-Host server ... No bugs except USB OTG and extra Language support, sorry about that

    Please remember to back-up your "/data/nvram" folder from your stock before flashing and replace after flashing these so that you all don't use wrong IMEIs, MAC addresses, Serial number etc. Also do all three wipes before flashing (data, cache and dalvik cache)...And yes, be patient cause the first boot after flashing may take up to 3 minutes...

    All files posted here are to be flashed using CWM recovery with "Install zip from sdcard" option !!!

    A2107A-F Stock ROM : http://d-h.st/Q4t
    A2107A-H European Stock ROM : http://d-h.st/JhV
    A2107A-H modded Chinese ROM : http://d-h.st/oAs
    A2107A-H modded Foxtrot ROM : http://d-h.st/TSQ
    A2107A-H modded Tesmart ROM : http://d-h.st/dFL
    A2107A-H modded LeWa ROM : http://d-h.st/QbM

    NOTES :
    1. For complete power-off in LeWa modded ROM, you have to un-check "settings--->Accessibility--->Quick Boot"
    2. May have to install the patch (link below) to set internal sdcard as default memory after flashing modded Foxtrot and LeWa ROMs

    EXTRAS : (Credit Foxtrot_KZ)
    Patch for setting external sdcard as default memory : http://d-h.st/SDL
    Patch for setting internal scard as default memory : http://d-h.st/u5M
    17
    Sure, no problem !
    After several hours of search and difficulties to register onto Chinese websites ;)
    I managed to find the attached file. I take no credit for the tool because it was developped by someone else (SNARL I guess)
    It was missing the superuser apk inside so I put it back and also translate the steps to English.

    Here are the steps :
    - Connect the tablet in Debug USB mode
    - Launch root.bat
    - The device will reboot at each of the 3 steps

    If you need more info, don't mind to ask!

    Here is the link of the original thread :
    http://3g.lenovo.com/thread-69003-1-1.html
    13
    A2107A-H Firmware update, Custom Rom and CWM Recovery (calling feature - unlocked)

    Password for archive:"xdadevpemergency"


    Firmware



    1. CWM Recovery ROM.

    https://rapidshare.com/files/3358458529/CWM Firmware.zip


    2. A2107A-H v9 ROM in a zip format for install by CWM Recovery.

    https://rapidshare.com/files/241044528/A2107A-H v9.zip


    3. Google apps for google store and account sync (installation by CWM Recovery)

    https://rapidshare.com/files/2713449644/gapp-ics.zip



    Tools



    1. SP Flash Tool for formating device NAND FLASH.

    https://rapidshare.com/files/1465167471/SP_Flash_Tool_v3.1206.01.zip


    2. Smarthphone Multiport for Flash the CWM REcovery ROM.

    https://rapidshare.com/files/2880421726/SP_MDT_src_v3.1216.02_A2012.05.22.zip


    3. MTK Droid Tools for easy IMEI repair and easy ROOT install.

    https://rapidshare.com/files/3431631170/MTKdroidTools.zip



    Manual

    Device formating

    1. Open SP Flash Tool
    2. Choose a "Scatter-loading" file from "CWM Recovery ROM" folder
    3. Press "Format" in a left top corner of SP Flash Tool
    4. Choose "Auto Format Nand Flash" -> "Format whole flash" and press "OK"
    5. Connect device to PC, press "reset" button on a back of your device

    Your device should be formated on this point.

    6. Close SP Flash Tool

    Installing CWM Recovery ROM

    1. Open Smartphone Multiport
    2. Press the "Scatter File" button and choose this file from a CWM Recovery ROM folder
    3. Tick to both "Sel All"

    Settings for Smartphone Multiport:

    Type: Firmware upgrade
    Baud rate: 921600
    DA download all: High speed
    USB Port: BootRom --->DA

    4. Press Start all

    On this point firmware should be downloaded on your decive, if nothing happend press the "reset button" on a back of your device.
    After this operation you will have a CWM Recovery, but not a main firmware!!!

    Installing main firmware

    1. Copy A2107A-H v9.zip and gapp-ics.zip to sd card.
    2. Boot in to CWM Recovery mode by:

    - Press the "reset" button on your device
    - Press and hold for a 3 sec. "power" button on your device (after 3 sec. releas the buton)
    - When you see "lenovo" logo press and hold vol+ and vol- untill you will boot in to CWM Recovery mode

    In a CWM Recovery Mode

    Menu down = vol-
    Menu up= vol+
    accept= power button

    1. Choose "wipe data/factory reset"
    2. Choose "wipe cache partition"
    3. Choose "Advanced" -> "Wipe Dalvik Cache"
    4. Go to main menu of CWM Recovery mode
    5. Choose "install zip from sdcard"
    6. Choose "choose zip from sdcard"
    7. Find the A2107A-H v9.zip file.
    8. Choose "Yes - Install A2107A-H v9.zip"

    Do the same think with gapp-ics.zip and reboot your device.

    IMEI repair and ROOT installation

    1. Connect your device to the PC (device must be turned on and connected as "USB debugging" and "Media device)
    2. Start MTK Droid Tools
    3. Press Replace IMEI (fill up IMEI 1 and IMEI 2) and save
    4. Reboot device

    On this point you should have a IMEI working, if not repeat IMEI repair from point 3.

    5. Press ROOT button if the program ask for anythink press "YES" (your device will reboot 2 or 3 times and it will be ready to go).


    Enjoy!!!
    10
    Hi everyone,

    here are the files to install the stock Chinese ROM A2107A_H_S121_120525.
    I must cut the ROM into 3 parts to upload it.
    If you need more info, don't mind to ask !

    Flash tool :
    A2107 flash tool

    USB driver :
    USB VCOM driver

    How to :
    A2107 flash how to

    Stock ROM :
    A2107A_H_S121_120525 part 1
    A2107A_H_S121_120525 part 2
    A2107A_H_S121_120525 part 3

    EDIT : For those interested, here is a firmware update :
    update.zip
    - copy the "update.zip" to /sdcard
    - reboot into recovery with "adb reboot recovery"
    - the update will apply automatically

    For your info, here is the linkl of the original Chinese thread :
    http://bbs.lenovomobile.com/forum.php?mod=viewthread&tid=56120&extra=page=1
    7
    New Rom

    Build A2107_S406_121213 pemergency Final

    https://hotfile.com/dl/184306767/45594f0/clockworkmod.rar.html

    1. Full oryginal multilanguage.
    2. Download all from google store (no problem with incompatibily).
    3. Battery status in settings.
    4. Percentage battery notification.
    5. Info about both IMEI numbers in settings/about device
    6. Password for desktop backup.
    7. Talk back.
    8. Quick Boot
    9. Pointer speed settings.
    10. Full synchronization settings.
    11. Permanent root permission without icon.
    12. Launchers (stock, apex, go launcher)
    13. Full google service (movies and music hub).
    14. Advanced call settings from a dialer.
    15. Separate call buttons for each sim card.
    16. Increase battery usage for about 35% (3 days on wi-fi in testing)
    17. Boot in to recovery option from menu.

    And many more (just not remember) all mods

    Everything working as in oryinal stock ROM

    Install same way as previous version, from recovery as (backup recovery). Don't forget to clear data and cache after update. And as last don't forget about restore IMEI after all.


    Screenshots on the way...

    This is my last mod for this device. Hopefully you like it...

    Thanks guys.



    Sent from my IdeaTab A2107A-H using XDA Premium HD app