1.HARD RESET ANG UNIT VOL DOWN AND POWER BOTTON
2.FRP PROBLEM JUST OPEN UNLOCK TOOLS
3.THICK OPPO TAB
4.SELECT C21Y (RMX3261) RMX3262
5.SELECT (SPRD FRP)
6.INSTALL SPD DRIVERS IS MUST
7.OFF SI UNIT
8.HOLD BOOT KEY (VOL DOWN)
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