ADB fastboot not working.

[sirzechsLuciferDxD]

I flashed a firmware less miui 10 with twrp. It was ok but the camera was not working. I went to custom recovery but saw that twrp was overwritten by mi-recovery. I thought of loading twrp through fastboot but my device is not listed in adb devices. What to do? Please help.

The option to change to MTP is not showing. The phone is simply charging. I tried turning usb debugging on and off and installing wpdmtp.inf but no help.

 

[Yuki1001]

If your computer has drivers installed, it may be a problem with your phone system.
Is your bootloader unlocked?
If unlocked, power off your phone. Then hold POWER and VOLUME(-) for about 11 seconds to enter fastboot mode.
You can flash dummy.img first to temporary bypass ARB.
And then you can flash twrp recovery.
Use twrp to backup all your needed data.
Because of the ARB, do flashing by recovery is not recommended.
You can download MiFlash to do a clean flash.(Don't lock the bootloader)