Screen issue
I had the same problem with a new Mi A1. After installing twrp and flashing LineageOS the touch screen didn't work correctly. When touching it, sometimes it would respond in the wrong spot. Most touches were unresponsive. Booting back to twrp had the same problem. When I flashed stock Oreo with MiFlash it still was broken.
I managed to fix it doing the following (files available on androidfilehost from a user named edwaine):
1. Download MiFlash2017-7-20-0.zip which seems to be the latest version
2. Download the latest official Nougat ROM (not Oreo)
tissot_images_7.12.19_20171219.0000.00_7.1_d39fa89aaf.tgz
3. Put the phone in fastboot mode by holding power + volume down
4. Did a "clean all and lock" with MiFlash 2017.7.20.0
After this my phone booted to a black screen for a few minutes and then showed the initial setup with a working touch screen. I believe the initial problem was caused by not properly upgrading to Oreo. I didn't even check the stock firmware when it arrived, because I didn't think there were any issues just flashing newer firmware. I will now try to upgrade properly.
I hope this helps someone.
Hi guys, I tried to install Gcam to my mi a1, but all went wrong and I installed pathced_boot from mi a2 and after it i got big troubles. I found this thread and tried to remote my phone with MiFlash and Noughat. I hoped, that all will be ok, but no. MiFlash said me, that "success" and phone started to reboot and... all. I got a bootloop. Then i tried to start system in recovery log I found this "no /cache partition found". Also I tried to flash TWRP, but fastboot says that i have troubles with partition "not allowed", sth like that. But then I back to Pie system is working, phone says "Hello", but touch works incorrect. I really don't know that to do and aks you, guys, to help me, please.
Also my version was 10.0.17.0 if it matters
