WHAT IS TWRP?
Team Win Recovery Project is a custom recovery for Android devices.
It allows you to back up and restore your data, flash custom ROMs to your device, repair broken file systems, and root your device.
U Pro has A/B partitions. to prevent issues its good to flash it in both slot, because i/we can not know on which partition you are
This version only working on Eragon roms
Maybe soon I'll manage it to work on stock rom
Notice 3: Sdcard now working
TWRP for 20180227 Base via Qfil Flashtools:
Go here : https://drive.google.com/file/d/1650peMjuk_WTFkxlufL84aJ6cMG5-g3q/view?usp=drivesdk
TWRP for 20180423 Base and newer:
Go here: https://drive.google.com/file/d/1vzDDVRl8vKMGzybVm_FYvufHlmOygOud/view?usp=drivesdk
if you use the old 20180227 Base you have to use Qfil Flashtools , because fastboot commands dont work in that Build.
we have a good guide of how to use FLashtools already
look here: https://forum.xda-developers.com/android/development/guide-elephone-pro-user-manual-t3775895
if you are on 20180423 Base and newer you can use fastboot commands
required : ADB and fastboot
enable usb debugging in developer settings.
fastboot flash boot_a twrp.img
fastboot falsh boot_b twrp.img
teamwin for this awesome custom recovery
@travis82 for his advices
And @skeleton1911 for his help