HOW TO LOCK 4G LTE ONLY AND THEN HOW TO REMOVE ,2G,3G,H,h, IN OPPO A12(💯LEGIT)

HOWTOLOCK#4GLTEONLY#ANDTHENHOWTOREMOVE#2G,3G,H+h#INOPPOA12( LEGIT). DESCRIBED how to lock on whatsapp how to lock on windows …

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4g lte