5-7
5.2.4 Disassembling Front Cover Assembly (Note: You should
wear an anti-static wristband throughout)
1. As shown in the figure: Remove the two M3x8 Phillips pan head double washer
screws that locks the core control board PCBA with a Phillips screwdriver.
2. As shown in the figure: Unplug the speaker cable and remove the core control board
PCBA.
3. As shown in the figure: use the Phillips screwdriver to remove the six M3x8 Phillips
pan head double washer screws that fix the keypad board PCBA, and take out of the
keypad board PCBA. Handle gently, protect the display during removal, and prevent
the display adhesive from being disengaged.
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