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

Calibrations

3 Check the part and calibration and then tap Start .

4 Read the on-screen instructions and tap Start . The white calibration box must be prepared before you start.

5 Put the white calibration box on the sensor area (below the square side) and push the rubber by applying force with your finger. Tap Next and keep pushing the rubber with your finger until you see the success message. The bottom side of the rubber that is shaped like a square should be located on the square guide line.

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