Repair guide Galaxy S21 (SM-G991B) - English - Rev.1.0

Disassembly and Assembly

9 Pull up on the suction cup with strong, steady force to create a gap between the cover and the frame. Slide the opening pick back and forth along the right edge to slice through the adhesive. Leave the opening pick inserted near the bottom of the right edge to prevent the adhesive from resealing. As the back cover can be damaged by excessive force, be careful not to damage the back cover. If you have trouble creating a gap, heat the microwaveable heating bag additionally, and apply it on the back cover to further soften the adhesive. When reheating, it should be heated no longer than 30 seconds.

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