Try this:Hi, I need some help.
I've read the first 25 pages, and see some people have the same problem and find a issu. But not me.
In resume :
2 weeks ago, I have the 22.214.171.124 global version with TWRP and Magisk. All was fine.
I update the OTA 126.96.36.199 global and after reboot, I've lost TWRP and Magisk, but MIUI working.
Today, I try to install TWRP again. It was a little complicated, but it's OK. I can launch TWRP. But my problem is that. I can ONLY launch TWRP.
I try to install LineageOS 16.0-20190921 because I don't want Gapps and Xiaomi apps not interesting me (and I have a very good experience with my Nexus 5 with Cyanogenmod). Actually impossible to start OS. I can't install this.
This is some try :
Do all the first post (with wipe everything).
My TWRP version is in the link in the OP and launch with the .bat. (include "fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img")
UPDATE - My TWRP version is 3.3.1-11
I've try install LineageOS with sideload and directly in the phone (with adb push command).
I've try with and without install Magisk.
I've try wipe dalvik after install LineageOS befor reboot system.
Actually, when I want to reboot system, TWRP note this : "No OS installed! Are you sure you wish to reboot?"
I've try to reinstall LineageOS, the same...
I've try to install MIUI 188.8.131.52, the same again (the 184.108.40.206 not work)...
I've notice this :
With adb sideload, the process finish on the phone before the 50% (and Total xfer: 1.00x on the prompt CMD). I have this message :"detected filesystem ext4 for /dev/block/bootdevice/by-name/system". Perhaps it's normal, I'm not sure.
At this point my research don't help me and I lost "temporally" my phone.
Sorry for the long post, and thank you for your help.
What I do :
Flash via Rom stock Fastboot with this tuto.
After this, I can use normaly my phone with MIUI 220.127.116.11 Global. But, I lost the Unlock Satut.
So, re-install Mi Unlock and run it. Fortunately, not wait 7 days.
Flash TWRP 3.3.1-11 -> OK
Wipe Dalvik, Cache and System -> OK
Format Data -> OK
Install via sideload LineageOS 16.0-20190921 -> at 50% in prompt command, the phone finished.
Reboot system -> Warnig "No OS installed..." :crying:
I slide to reboot, and... I see a new screen... LineageOS load :victory:
I complete the first step and reboot to TWRP.
I flash Magisk and new reboot to OS.
Let's go to a long time full of install, copy and setup :fingers-crossed:
I'm so happy, thanks a lot Saboorpatel !!!
/* * I'm not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed (like it did for me...). * Please do some research if you have any concerns about features included in the products you find here before flashing it! * YOU are choosing to make these modifications, and if you point the finger at me for messing up your device, I will laugh at you. * Your warranty will be void if you tamper with any part of your device / software. * Same statement for XDA.