[Android Q&A, Help & Troubleshooting] Benki_01:
Hello,

i have a huge problem with my MI A1 Phone after it stopped rooting in the process while using CFAR-method as given here:

https://xiaomifirmware.com/guides-and-tips/guide-root-xiaomi-mi-a1/

Since it was not moving forward during the root process it has several problems:

- "unable to mount data" in every case within the TWRP

- "unable to mount storage" in every case within the TWRP

- When i reboot the system it just goes into fastboot mode, nothing more anymore / (or just the white screen with the mi Logo loading every time again and again)

- It shows no internal storage unless i format data via TWRP --> WIPE --> Format Data, then it is shown with 50,3 of 50,3GB free on my laptop, but besides the TWRP folder there is no data in it.

- When i want to reboot the system it shows "no OS installed. Are you sure...."

I read for hours in several forums and tried every "troubleshooting" youtube video, as "Change file system"/ change the Data from EXT4 to EXT1 / Install software.zip directly from Micro-SD and so on, but every time there are the above standing failures again.

Here is what i did yet:

1.)

I tried to flash it via USB as given here: https://xdaforums.com/mi-a1/how-to/ota-official-fastboot-image-n2g47h-7-12-t3728929

but i can not enable ADB on the phone or TWRP:

My phone does not go into recovery mode by itself, so I have to do it how it is given here (and it works so far):

https://xdaforums.com/mi-a1/development/recovery-twrp-3-1-1-0-touch-recovery-t3688472

When i want to enable ADB Sideload over TWRP there comes "Starting ADB sideload feature" for a long time but nothing more, after several minutes there comes "failure".

I installed ADB on the PC like given here: https://www.xda-developers.com/install-adb-windows-macos-linux/

When i write "adb devices" in the CP there are no devices, (I think because it is not enabled on the phone.)

2.)

I tried to flash it without using ADB sideload by downloading the newest tissot_images...file 8.1.10 as given here:

https://xdaforums.com/mi-a1/how-to/ota-official-fastboot-image-n2g47h-7-12-t3728929

It does not work by showing the following failure in the CP (fastboot oem unlock was done several times before):

D:\Dokumente\Privat\Handy\mi a1\6\platform-tools>fastboot devices

2950d2d8 fastboot

D:\Dokumente\Privat\Handy\mi a1\6\platform-tools>fastboot oem unlock

...

OKAY [ 0.021s]

finished. total time: 0.022s

D:\Dokumente\Privat\Handy\mi a1\6\platform-tools>flash_all.bat

D:\Dokumente\Privat\Handy\mi a1\6\platform-tools>fastboot getvar product 2>&1 | findstr /r /c:"^product: *tissot" ||

product: tissot

D:\Dokumente\Privat\Handy\mi a1\6\platform-tools>fastboot oem unlock ||

...

OKAY [ 0.021s]

finished. total time: 0.023s

D:\Dokumente\Privat\Handy\mi a1\6\platform-tools>fastboot flash modem_a D:\Dokumente\Privat\Handy\mi a1\6\platform-tools\images\modem.img ||

error: cannot load 'D:\Dokumente\Privat\Handy\mi': No such file or directory

"Flash modem_a error"

D:\Dokumente\Privat\Handy\mi a1\6\platform-tools>

3.)

When i tried to install a Software-zip over a Micro-SD there comes the fault

"Error installing zip file "/Sdcard1/miui_TISSOT_.......zip"

Updating partition details

Failed to mount data (Operation not supported on transport endpoint)

Done...

4.) I tried to flash it by using MiFlash but my phone is not detected by the software although in several stages the internal storage was detected but empty (!) on my laptop.

Do you have any advices what i could try out, i hope you see that i tried nearly everything and read for hours and hours before asking.

Could it has something to do with USB debugging not working? I am not entirely sure anymore if i activated it in the developer options, but i think so! Is there a possibility to check it via fastboot?

Is there any possibility to solve the problem on the phone by using the "terminal" in TWRP.

I simply don't know what to do anymore because every attempt to get "new data" on the phone fails on the phone or in the CP.

Thank you in advance.

Kind regards,

Ben