Restoring the NVRAM on a MYA-L22 typically requires specialized tools because the partition is protected: HUAWEI Y5 2017 MYA-L22 IMEI Repair By #DFTPRO
Without a backup of your original NVRAM, you cannot simply "reset" to fix this. You need a generic MYA-L22 NVRAM file to rewrite the partition, then repair the IMEI manually. mya-l22 nvram file
: SP Flash Tool for flashing the files or Maui Meta Tool for direct IMEI repair. Restoring the NVRAM on a MYA-L22 typically requires