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How to Reflash Launch X431 Android Tablets?

If your Launch X431 V+ or X431 Pro3S+ Lenovo Android tablet says the device is corrupt and will not boot. You may need a firmware reflash.

Reflash Launch X431 Android Tablets 1

Preparation:

Download reflash files

QUD.WIN.1.1 Installer-10040.5.zip

QPST.WIN.2.7 Installer-00447.3.zip

emmc_appsboot_printlog_and_repair.mbn

 

Follow the instructions below to reflash your x431 Lenovo Android tablet.

Two steps:
1. Use Qfil to flash into the special aboot.img
2. Use Qfil to reflash back to the default setting

I: Use Qfil to flash into the special aboot.img

 

1. Prepare the special aboot.img: download the emmc_appsboot_printlog_and_repair.mbn above

Reflash Launch X431 Android Tablets 2

2. Prepare X431 Android tablet, i.e WIFI PRC TB-X605FC_S000078_200119_PRC

3. Open Qfil, load software TB-X605FC_S000078_200119_PRC

Reflash Launch X431 Android Tablets 3

4.Turn off tablet. Press power key and plug in USB cable at the same time, machine will enter EDL, Qfil will recognize port 9008

Reflash Launch X431 Android Tablets 4

5. Press Tools tab-> Partition Manager, then press OK

Reflash Launch X431 Android Tablets 5

Reflash Launch X431 Android Tablets 6

6. In the partition list, find a line which Label is aboot

Reflash Launch X431 Android Tablets 7

7. Right-click the selected aboot line, and then select Manage Partition Data in the pop-up box
Reflash Launch X431 Android Tablets 8

8. Load Image

Reflash Launch X431 Android Tablets 9

9. Upload aboot image emmc_appsboot_printlog_and_repair.mbn downloaded above

Reflash Launch X431 Android Tablets 10

10. Reflashing device in process. Click Close->Close->OK, the tablet with restart.

Reflash Launch X431 Android Tablets 11

 

II. Use Qfil to reflash back to the default setting

 

Turn off Launch X431 machine, press and hold the volume up button and plug in the usb cable at the same time.
Make the machine enter 9008 mode again.
Use Qfil to reflash into the default setting.

Reflash Launch X431 Android Tablets 12

NOTE:

The above fixes for RPBM partition data errors have been completed.
If the machine fails to start after the first step of reflashing into the special aboot operation, then it may not be the same problem, please send the machine to your dealer for further analysis.

https://www.obdii365.com/service/reflash-launch-x431-v-and-pro3s-tablets.html

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