• This product is a fingerprint calibrator for vivo/Oppo/Xiaomi/Huawei/Samsung, which is used for optical fingerprint correction

• A general tool for is optical fingerprint calibration

• The operation will be finished in one minute

• Effectively solve the problems of missing fingerprints after restarting, unable to enter normally, and unable to unlock normally after entering

Specification:

• 071 fingerprint optical corrector Android brand entry code:

• For vivo: *#64663#*

• For Oppo: *#899#, 6776

• For Xiaomi:*#*#6484#*#*

• For Huawei: Use with software

• For Samsung: still verifying