In case you’ve deal or stuck with “NVRAM WARNING: Err=0x10” error on your Xiaomi Redmi Note 4, then here’s a small downloadable patch that might help.
Solution for NVRAM WARNING: Err=0x10 issue on Redmi Note 4
This patch will fix NVRAM WARNING: Err=0x10 error on Redmi Note 4. Install via TWRP recovery. Enter recovery mode and tap “Install”. Then select patch .zip file and continue installation.
Download link: RN4MTK_fix_NVRAM_WARNING_Err=0x10.zip