Hi guys!
Try this
The device is in Oreo:
Have an SD card
!!! UNLOCK BOOTLOADER AND OEM !!!
!!! Do a complete reset via the original recovery (setting-> reset) !!!!
Download the beta_flashy on this topic:
https://forum.xda-developers.com/huawei-p20-pro/how-to/guide-how-toom-emui-9-android-9-t3839316
Thank you
@a1Pha
Uncompress this and replace images / TWRP.img with this
https://forum.xda-developers.com/huawei-p20-lite/development/recovery-testing-t3783587
(Rename TWPR.img)
Thank you
@Pretoriano80
Download firmware 9.0.1.100 (log) update.zip and update_full_anxxx.zip
copy the files to the ZIPS folder HERE and rename update_full_anxxxx to update_all_hw.zip
plug cable into the phone and run flash.bat
Waiting and hoping
Your device is in EMUI9 but does not work completely:
Download beta_down from this thread:
https://forum.xda-developers.com/huawei-p20/how-to/guide-how-to-rollback-emui-9-beta-t3841687
Thanks
@Androlark
Download the flash.txt file from here:
https://forum.xda-developers.com/showpost.php?p=77704187&postcount=120
Thank you
@a1Pha
Replace flash.bat with flash.txt
Uncompress this and replace images / TWRP.img with this
https://forum.xda-developers.com/huawei-p20-lite/development/recovery-testing-t3783587
(Rename TWPR.img)
Thank you
@Pretoriano80
Download firmware 9.0.1.100 (log) update.zip and update_full_anxxx.zip
copy the files to the ZIPS folder HERE and rename update_full_anxxxx to update_all_hw.zip
plug the cable into the phone and run flash.bat
If you see the message "Waiting for device" after reboot, do not worry:
Open a new cmd in beta_down folders
and type these commands:
adb shell twrp decrypt
adb push ZIPS-HERE / update.zip /data/update/HWOTA/update.zip
push ad ZIPS-HERE / update_all_hw.zip /data/update/HWOTA/update_all_hw.zip
adb push images / nocheck.img /data/update/nocheck.img
adb shell "echo --update_package = / data / update / HWOTA / update.zip> / cache / recovery / command"
adb shell "echo --update_package = / data / update / HWOTA / update_all_hw.zip >> / cache / recovery / command"
adb shell if = / data / update / nocheck.img of = / dev / block / bootdevice / by-name / recovery_ramdisk
adb startup recovery
Waiting and hoping