Customs authorities advise consumers to verify their device by dialing *#6776# (an Oppo-specific software version code). On a genuine Oppo, this displays a signed build fingerprint. On the M9201, it either shows an error or a generic “Android Version 1.0.”
: The jailbroken firmware removes regional restrictions, Cinavia protection, and adds support for SACD ISOs . oppo clone m9201