Xiaomi Redmi Note 8 reboot when idle position

[ibrahiMX]

Hello everyone.
My Xiaomi Redmi Note 8 is restarting after 50 seconds of lockscreen.
I have made:

• Factory Reset
• Flash ROM STOCK MIUI 11.0.3 (fastboot mode)
• Flash ROM STOCK MIUI 10.3.2 (fastboot mode)
• Upgrade from MIUI 10.3.2 to 11.0.3 (OTA)
• Flash ROM Xiaomi.eu HMNote8 (TWRP and micro sdCard)

Nothing works: every lockscreen it reboot at 50 seconds.
I made this experiment: I download an app for background music play (with locked screen) and it doesn't reboot. Is only when idle mode with lockscreen.
What can I do...?

 

[ElenrodPP]

Hello
Were you mange fix your issue i have identical situation Note8T?

 

[ElenrodPP]

I manage to fix this by switching language to English (US). I'm base in Poland seams like Xiaomi has problem with native languages.