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If the NVRAM partition becomes corrupted or is accidentally formatted during a software update or a firmware flash, the device enters a state often called or "NVRAM Warning: Err 0x10." When this happens: The phone cannot connect to cellular networks (No Service).
> AT+EMGR=1,7 # Read IMEI from NVRAM > AT+EGMR=1,7,"IMEI1" # Write IMEI1
: Even if two phones use the MT6768 chip (e.g., Redmi 9 and Galaxy A31), their NVRAM files are not interchangeable due to different hardware configurations.
NVRAM operations on MT6768 devices can fix serious radio and connectivity problems but carry significant risk if done incorrectly. Treat nvram backups as device‑specific, sensitive artifacts and follow vendor guidance or professional service for recovery tasks.
A: Yes, using SP Flash Tool read-back function without root. But you need the scatter file and proper start address.
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