回覆 21# nelson8
The stock ROM for Max1 and Max1 Prime is Android 7.0 in MIUI 10, while Max3 is Android 10 in MIUI 12. in the latest Mi ROM, it does not downgrade to earlier versions. The only option for you is to flash EU ROM or Global ROM with bootloader unlocked.
I think you wanted to return to earlier ROM versions because of lack of GSM supports in MIUI 12.5. With US lifting embargo on Xiaomi, we are seeing GSM support is returning to K20, K30 and others models. I think it will come back to Max 3 too, but it takes a bit more time since it is quite a old model and is not on the top of their list.
If you want to flash CN, EU or Global ROM, you can try this tool called XiaMiTool V2 available here https://www.xiaomitool.com/V2/. Once you hook up your phone, it will find the ROMs matching your phone for you and allows you to choose which one to flash. Take a look ! |