[Lenovo A3500 Questions & Answers] leripe:
How to root Lenovo TAB A7-40 A3500-FL?

[Solved] See the guide below!

Device info:

Model number: Lenovo A3500-FL

Android version: 4.4.2

Kernel version: 3.4.67

Build number: A3500FL_A442_01_25_140823_SE

BB Chip: MT6582

MS Board. A3500FL

Bar code: this was my device's serial number

SW Ver.: ALPS.KK1.MP1.V2.10

Custom Build Verno.: 1408775889

Managed to get cwm and root with this guide: http://xdaforums.com/android/development/guide-lenovo-a3500-h-t2879208/post55491817#post55491817

Modified the guide for Lenovo A3500-FL!

EDIT: Also some users have reported that this guide doesn't do the trick or is out-dated, so copypasted the guide from this post here.

Guide

1. Download attachment cwmRecovery.zip and download latest Flash_tool (version 5.1352.0) can be downloaded from here)

1.1. Enable USB-debugging. (How to do this)

2. Manually install the drivers from the attachment a7_40_drivers.zip for the LenovoTablet before plugin it to computer (win7 dirvers work for win8 too).

2.1. To install unsigned/uncertified drivers on Windows 7: http://en.kioskea.net/faq/3914-windows-7-how-to-install-unsigned-drivers

2.2. To install unsigned/uncertified drivers on Windows 8: http://www.howtogeek.com/167723/how...8.1-so-that-you-can-install-unsigned-drivers/

2.3. After you have disabled the driver signature verification, you can install the drivers like this: Right click My computer, Manage, Device Manager, right click your computer at the top, Add Legacy hardware, next, Install plapla manually, next, Show all Devices, Have a Disk.., Browse to the driver folder where you unzip them, choose example windows7 and the 64 version (win7 drivers work for win8.x too), install every device. Then follow the guide.

(Note: Otherwise Windows only installs the normal automatic drivers and its more difficult to install the other drivers.)

2.4. Plug your device to PC.

3. Download the latest supersu zip file (version 2.46) from attachments or from https://download.chainfire.eu/696/SuperSU/

3.1. Move the zip.-file to the Sdcard.

4. Turn off your device.

5. Unpack cwmRecovery.zip

6. Run Flash_tool.exe with Admin Rights.

7. Chose Scatter-Loading and choose MT6582_Android_scatter.txt (in Recovery folder).

7.1. Now you will see checekd only one checkbox - recovery, if not click on it and choose recovery.img

7.2. Press Download.

7.3. Connect your device.

7.4. Wait few seconds.

8. Have CWM on your device .

9. Unplug your device.

10. . Boot to cmw recovery by turning off your device. Then press and hold VOL DOWN + VOL UP and then also press and hold POWER for about 7 seconds.

10.1. Choose " Install zip from sdcard." (To confrim always use the Power Button)

10.2. Choose "zip from sdcard".

10.3. Select SuperSU-v2.46.zip from sdcard and apply.

10.4. Have a rooted tablet.

It might be necessary to always flash the CWM with the Flashtool directly before you startup the device. Otherwise it will start the original AndroidRecovery again.

It might also be necessary to use different drivers from here.

If the supersu zip doesn't install, try toggling the signature verification to disabled from cwm->install zip from sdcard->toggle signature verification.

Tested and working on Levono A7-40 3500-FL with kitkat update, build number A3500FL_A442_01_25_140823_SE, from ota. Attached screenshot for proof. Also other people have reported that this works for later updates too, for example A3500FL_A442_01_27_141127_SE.

You can update to the latest OTA firmware by first going back to stock recovery. See the second post for the guide.

Thanks and credits go to: [MENTION=4890381]Koli96[/MENTION] and [MENTION=400800]bobais[/MENTION]