[Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe] Tijn#46:
Hi, I'm sorry if there already are too much people whining for help after doing something stupid, but I really need your help.

So I tried to install a custom ROM (Evolution X) on my Xiaomi Mi 9T Pro. I installed TWRP, which I opened with cmd on pc. It doesn't open using a button combo. But I (then) didn't think that could be a problem. Instead it opens Mi-Recovery. I installed the custom ROM zip file on the phone. After I first tried to reset the phone from TWRP, the files got encrypted. So I also installed the Magisk and something named Disable-Force-Encryption-Treble zip files, I've seen a video in which they said that would fix that. So after flashing those two zip files, I again reset the device. The custom ROM file isn't flashed. But it ended up in a bootloop. As soon as I Googled bootloop, I see search results of that Magisk is causing it, so I think that is the case.

Now I don't know what to do. I can't acces TWRP, since I need to open it with a pc. I can open fastboot on the phone, but can't acces it with PC, since USB-Debugging is disabled because of the reset. I also tried to do something with MiConnect, but my phone can't connect with it. And the phone isn't rooted (I think, I did flash Magisk, what causes the bootloop I believe, but I don't think that that roots the phone).

I think I can solve it by uninstalling Magisk, but how? Or do you have any other suggestions?

I really need help, it's my daily driver and can't miss it. I'm new with these things so I don't know that much about it. Thank you in advance.Hi, I'm sorry if there already are too much people whining for help after doing something stupid, but I really need your help.

So I tried to install a custom ROM (Evolution X) on my Xiaomi Mi 9T Pro. I installed TWRP, which I opened with cmd on pc. It doesn't open using a button combo. But I (then) didn't think that could be a problem. Instead it opens Mi-Recovery. I installed the custom ROM zip file on the phone. After I first tried to reset the phone from TWRP, the files got encrypted. So I also installed the Magisk and something named Disable-Force-Encryption-Treble zip files, I've seen a video in which they said that would fix that. So after flashing those two zip files, I again reset the device. The custom ROM file isn't flashed. But it ended up in a bootloop. As soon as I Googled bootloop, I see search results of that Magisk is causing it, so I think that is the case.

Now I don't know what to do. I can't acces TWRP, since I need to open it with a pc. I can open fastboot on the phone, but can't acces it with PC, since USB-Debugging is disabled because of the reset. I also tried to do something with MiConnect, but my phone can't connect with it. And the phone isn't rooted (I think, I did flash Magisk, what causes the bootloop I believe, but I don't think that that rooted the phone).

I think I can solve it by uninstalling Magisk, but how? Or do you have any other suggestions?

I really need help, it's my daily driver and can't miss it. I'm new with these things so I don't know that much about rooting, custom ROM and these things. And I'm new to XDA Developers, so sorry if I do something wrong.

Thank you in advance.