How to Reset Launch X431 V+, Pro3S+, Pro5 to Factory Setting?

If your Launch X431 V+, Pro5 or X431 Pro3S+ Lenovo Android tablet says the device is corrupt and will not boot. You may need a firmware reflash.

Flash Launch X431 Tablet 1




605 patch
including these files:





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

Flash Launch X431 Tablet 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

Flash Launch X431 Tablet 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

Flash Launch X431 Tablet 4

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

Flash Launch X431 Tablet 5

Flash Launch X431 Tablet 6

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

Flash Launch X431 Tablet 7

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

8. Load Image

Flash Launch X431 Tablet 9

9. Upload aboot image emmc_appsboot_printlog_and_repair.mbn downloaded above

Flash Launch X431 Tablet 10

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

Flash Launch X431 Tablet 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.

Flash Launch X431 Tablet 12


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.