Samsung SM-A720F Quick Start Manual page 9

7. Level 2 Repair
13
※ Remove USB Dispensing on PBA.
Use O-ring(GH81-14271A) on IF CON
Insert O-Ring on PBA.
Reassemble & Re WRT
※ Caution
※ Caution
1) Be care of scratch. 1) Be careful not to damage the PBA
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