Send the following on WhatsApp
Continue to ChatOppo CPH2179 imei backup ( nvram, nvdata, protect ) https://romgoc.net/oppo-cph2179-imei-backup-nvram-nvdata-protect/
Oppo CPH2179 imei backup ( nvram, nvdata, protect ) https://romgoc.net/oppo-cph2179-imei-backup-nvram-nvdata-protect/