[SOLVED] Xiaomi Mi Mix 2 - Chiron - Not able to flash recovery in bootloader mode

/e/OS Devices Xiaomi
1

Problem:
Since some time I am not able to flash a new recovery or boot image in bootloader mode.

How to produce the problem:
Method1:

  1. adb reboot bootloader
  2. fastboot devices (respons with device number)
  3. fastboot flash recovery recovery.img
    → Computer does not give any respons. The command line stays empty and stays there for hours.

Method2:

  1. adb reboot bootloader
  2. fastboot devices (respons given)
  3. fastboot boot recovery.img
    → Command line gives no respons (no errors, no warnings or whatsoever).

Method3:

  1. Xiaomi flash tool (which actually uses fastboot commands I believe).
    → Flash starts, but hangs there for hours without respons (also no errors or warnings).

Did this exercise on a Linux laptop, but also on a Windows 10 laptop. Both give exact the same results.
USB debugging is switched on.

I ended up in this situation, since I wanted to test /e/OS R-release and also wanted to use the e-Rovery tool. So, I decided to enable that option. That was successful, since erecovery was indeed flashed along with the ROM (flashed the ROM via TWRP (TWRP 3.3.1-1).

By using adb sideload, decided to flash the stock ROM of Chiron (miui_MIMIX2Global_V12.0.1.0.PDEMIXM_64006b3102_9.0.zip), which also went fine. The original recovery of Xiaomi came together with the updated stock ROM.

So, now I have a complete stock version of my Mix 2 available. But cannot flash anything else anymore. What are my option to flash back the latest /e/OS release? From bootloader cannot flash nor boot to a new recovery.

2

Did you apply for Xiaomi unlock again ?
Since you device already has been unlocked, it shouldn’t take long :wink:

3

Inside the developer options I see that bootloader is unlocked. Also during startup I see the unlock symbol. Does it need to be reapplied?

4

If you see the unlock symbol it should be unlocked, so the answer is no.
But you can try it to confirm :wink:

Also, did you try another USB cable ?

5

I did a quick check on the LineageOS wiki perhaps check out this recent commit devices: Stop recommending outdated TWRP images · LineageOS/lineage_wiki@72f3f95 · GitHub.

6

Used indeed more than one cable. It made no difference.

Downloaded the unlock tool from Xiaomi and tried to re-apply. Interesting outcome.
At first it was trying to read the device info. The Serial-Number (SN) was recognized. The message from the tool: “Read failed, please refresh or reboot device”. When rebooted it could not read out the device anymore, even not the SN. After several times of re-trying, sometimes it gave back the same message. Sometimes not recognized at all.

There seems to be something corrupt. After searching I found maybe something that could be related: GitHub - Maxpnl/Xiaomi-Unlocker-Fake-Fastboot. Going to give that a try.

7

@aibd , I am back to the stock recovery, so I guess not related to an outdated TWRP image. See also my previous reply to @smu44 . I guess something corrupt.

8

I do take your point, did you already use this exact MIUI already?

My experience is that increasingly newer MIUI make breaking into MIUI more difficult than 12 months ago. I am not being definite about this but perhaps worth checking out some recent posts on XDA

9

I am using this device for years. Just recently found out that flashing via bootloader does not work anymore. For sure it worked about one year ago.

1 Like
10

Unfortunately, I makes me think to an USB or adb problem, hopefully not an hardware problem :frowning:

If your Windows computers are USB 3, could you please try :

@echo off
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\usbflags\18D1D00D0100" /v "osvc" /t REG_BINARY /d "0000" /f
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\usbflags\18D1D00D0100" /v "SkipContainerIdQuery" /t REG_BINARY /d "01000000" /f
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\usbflags\18D1D00D0100" /v "SkipBOSDescriptorQuery" /t REG_BINARY /d "01000000" /f

pause

As an /e/ R tester I have to flash my chiron to stock (same image as yours).
I’ll keep you posted about the result, so we could compare.

1 Like
11

Moved your suggested lines into a “.bat” file and executed it as administrator. Next restarted into the bootloader and flashed the recovery. Worked at the first command! Now back to e/OS/!

Thanks a lot for your help, Sylvain! Great help.

1 Like
12

Nice to read that ! :slight_smile:

BTW no problem with my chiron when flashing the MIUI then /e/ R test ROM.

13

OMG, U ARE GOD, Thx so much! it’s helps for me!!!

14

You’re welcome, happy it also worked for you :slight_smile:

Original XDA thread : [Guide] Fix "press any key to shutdown" when unlock bootloader or run fastboot cmd | XDA Forums