There are a lot of scattered information everywhere about this tablet, so this is just an attempt to put those together in one place. Recently this tablet is gaining a lot of users due to its price and performance, I just hope that it helps the new users getting started. This is not my work, so I don't take any credit. No thanks necessary. Please thank the original contributors.
All the steps mentioned here are individually tested by me and at least worked for my device. However, I cannot guarantee that it will work on yours too, and I am not responsible for any damage to your device due to following or not-following this tutorial.
This thread is made possible due to the contribution of XDA members @Sparkrite, @Old faithful, @lee2006 and others. Special thanks to @clsA for providing the download links. Many thanks to @Tzul as stock firmwares and OTA updates were originally obtained from his work @ android-hilfe.de.
And we can not mention well enough the contributions of @Chainfire for root and @rovo89 for Xposed.
Root with Kingroot
(Easy Method) Use this method if you don't want to change to a custom recovery
So far it has been reported to be working on the Kitkat 4.4 rom only. The steps are as easy as it could get. download the Kingroot app, and let it do it's work. You shall be rooted.
Replace Kingroot with SuperSu
Now, giving super user access to your device to any app is no joke. And many of us feel a bit uneasy with the Kingroot app. There are 2 ways to replace Kingroot with SuperSu
- (Paid option )Use the Super-Sume Pro app app from the play store.
- (Free option) Follow this guide here if you are not afraid of getting your hands dirty with couple lines of codes in terminal emulator. Note that the terminal will show a lot of errors, but it will still get the job done.
Root with Custom Recovery
- Follow the steps for installing Custom Recovery in section 3
- Reboot into Recovery mode.
- Use the 'Install Zip' option in your Custom Recovery to install 'BETA-SuperSU-v2.49.zip' and you shall be rooted.
2. Install Xposed Framework
Installing xposed requires a rooted device. Root your tablet with one of the above methods.
Download the Xposed Installer apk. Install the apk, you will get a security warning. You need to check app installation from 'Unknown Sources' in Security settings. Once installed go to the xposed app, under 'Framework' click 'Install/Update' You can ignore the red warning. Restart your device after that. Download any modules you like and start customizing your tablet!
Lollipop requires installing Xposed via recovery, so having a custom recovery besides root is also a requirement. Download the latest version of Xposed. Android 5.0.1 =SDK21, and this tablet runs in ARM 64 bit mode. Download xposed-v##-sdk21-arm64.zip, copy it to the tablet, and install it from custom recovery. The first boot afterwards can a long time 5-10 minutes. Also download and install the latest XposedInstaller app (currently XposedInstaller_3.0_alpha4.apk ), to manage the modules.
3. Install Custom Recovery
Install USB driver
This one is a tricky process.
- Download SP_Drivers and extract the files.
- Start Device Manager on the PC
- Turn off the tablet and connect it to the PC via USB cable. Device manager will refresh and show MT67xx vcom for a couple seconds only. Quickly right click on it and select install driver manually, navigating to the directory of the SP_Drivers
- Disconnect the tablet
Install TWRP Recovery using SP Flash Tool
- Download and extract TWRP for Lenovo Tab 2 A10-70.
- Download and extract the latest version of SP Flash Tool
- Start SP Flash Tool, in Download tab get the scatter file from the recovery zip package. Use the Android4 file for Android 4.4 Kitkat, and the Android5 file for Android 5 Lollipop. Make sure only the recovery is ticked, and on the drop down menu 'download only' is selected. Click on the location column on the right of 'recovery' and browse to the recovery file depending on your android version.
- In SP Flash Tool, click Download.
- Connect the turned-off tablet to the PC. Recovery will flash in a matter of seconds and you will get a big green OK on the software.
- Close SP Flash Tool.
- Remove the tablet and make sure you do not start it, but get into recovery instead. Press 'volume up and power' and maintain that for about 10 seconds, past the vibration and the start of splash screen. A dark screen with very small characters will show up with three options: Recovery, Fastboot and Normal. Don't touch anything unless you make sure you understand what the buttons do. Volume up is used to navigate (go to Recovery), volume down activates the selection. DON'T select any other option! The power button has no effect.
- TWRP will start.
- Note that if you are already rooted, you can flash recovery via Flashify, Rashr, etc. You can also flash via Fastboot.
4. Flash Stock ROM with SP Flash Tool
There could be many reason to go back to all stock. Soft brick, return device to manufacturer for repair, Downgrade or upgrade OS, etc.
- Make sure you have the USB driver installed (procedure in the previous section)
- Download Stock ROM. Latest Lollipop A10-70F_S000121_151222_ROW or here. Kitkat A10-70F_S000021_150501_ROW_USER. Extract.
- Download and extract the latest version of SP Flash Tool
- Power off the tablet and run flash_tool.exe in the extracted SP flash tool folder
- Click 'Scatter-loading' and chose MT6752_Android_scatter.txt file in the extracted stock rom folder. Make sure on the drop down menu 'download only' is selected.
- Click 'download' and then connect the turned off tablet to the computer. The progress bar will show. It takes about 5 mins for the flash. A big green 'OK' button will show the end of the process. Disconnect the tablet and power it on. It may take up to 10 mins for the first boot. If it still not booting force turn off by pressing on the power button and start again.
The tablet should be powered off when connecting it to the computer, for both installing the preloader drivers and for flashing. This one is a very important step, and it won't work with a turned on tablet.
- If you are in stock Kitkat, you can reboot to recovery mode by going to the 'system update' app and clicking the rectangular button on the top right corner.
- To give sd card write access to any apps... If you are rooted this can be overcome by using apps like SDFix, HandleExternalStorage xposed module, or others.
- Strangely there is no option to change Lockscreen wallpaper in the settings menu. This can be done by opening any image with the default Gallery app and going to 'set picture as'....
6. OTA update to latest version of Lollipop
The latest update mostly fixed the wifi issue many people have been struggling with.
Use SP Flash Tool to flash System and Recovery only from Lollipop firmware provided on section 4. Choose recovery and system only to return to stock. From stock recovery choose install update from sdcard and then choose the lenovoota.zip
Link to OTA >> A10-70F_S000120_150907_ROW_TO_A10-70F_S000121_151222_ROW
first bootup takes about 10 min like any system update
7. Useful Reads
MediaTek boot process and partitions 101
Fix a corrupted Preloader
8. Additional Download Links
AndroidFileHost from Tzul
Onedrive from Tzul
AndroidFileHost from cslA
I shall continue to update this thread as more information becomes available. Please let me know if I missed anything.