fix a broken openpilot/dragonpilot/EON

** Tested on Windows 10 / 7 PC only
** latest updated at Feb 18, 2020

How to flash TWRP recovery to a X720 (Le Pro3)?

download the following file and extract to a folder, i.e., c:\x720


change to the folder,  i.e., cd c:\x720\platform-tools

Now, power off the x720 phone. Press the [volume down] button (keep pressed down, do not release) and connect the phone USB to your Windows PC. Now PC should detects a 'fastboot' device.

Run the batch file in this directory 'frec.bat' to flash TWRP recovery to the phone.

====================================

How to restore a TWRP openpilot backup by copying the file from PC to the phone with TWRP recovery? 

** get a TWRP recovery backup of DragonPilot 0.6.4 english version (a fork of openpilot) here https://drive.google.com/file/d/1Mwkh21MtEzQK-sOYQ7Vxb3ig1WgIyf0LC/view?usp=sharing
** copy files to the phone, please refer to this video

YouTube Video


Turn off the phone. Power on the phone with [volume up] pressed to enter TWRP recovery.

Connect phone's USB to the PC. Now your PC should able to detect a X722 device as an external USB storage.

Create a folder called TWRP and copy the openpilot/dragonpilot backup files into the phone.

** Restore TWRP backup to the phone , please refer to this video https://www.youtube.com/watch?v=zi3wnje6Sns&t=22s

YouTube Video


Now, use the TWRP recovery's menu on the phone, select [restore] button, and select the copied backup to restore the backup. 
It takes a while, like 5 minutes.

After the files are copied, use 'advanced feature' on the menu to wipe the two cache partitions.

Select [reboot] to reboot the phone into openpilot/dragonpilot. You can expect to boot the phone within one minute.

=======================================



web analysis site