Acer S500 Service Guide - Page 39

5. Read/Write Code SN 22 characters Code SN input Be sure the device has been found by Tool. Enter the Code SN (22 characters) then press " Write". Status Monitor will indicate the process PASS or FAIL. 6. Sensor Calibration - Accelerometer and Gyro-sensor Please make sure the device is placed on the level surface. Press Accelerometer button. - Light-sensor Please make sure the device is placed in standard fixture. Press " Light Sensor". - Proximity-sensor Please make sure the device is placed on level surface and no object is covered above. Press " Proximity" Status Monitor will indicate the process PASS or FAIL. 7. SIM Lock Chapter 4 33