Downgrade Miui 8 Failed - Error, "no Sim Card" And Other...


Soreysart

Members
Aug 26, 2016
1
11
I need help for my phone. I live in Germany, so i have not any support in my land for xiaomi devices.
Last two days i get Miui 8 but it have bugs. Today i decided to install Miui 7 but then it didn't work.
My Problems:
- i can't reboot to recovery mode
- i can't use my sim card (the device say: no sim card)
- i get every 30 minutes the report: Unfortunately, the process com.android.phone has stopped

i have installed many versions of Miui but nothing worked (All from the official miui site)
What can i do?
- I have the China Stable Version.