Dell Vostro 5501 - I;O Board; Removing the I;O Board

I/O board
Removing the I/O board
Prerequisites
1. Follow the procedure in before working inside your computer.
2. Remove the base cover.
3. Remove the battery.
4. Remove the WLAN card.
5. Remove the SSD-1 (M.2 2280 or M.2 2230).
6. Remove the coin cell.
About this task
The figure indicates the location of the I/O board and provides a visual representation of the removal procedure.
Steps
1. Locate the I/O board on your computer.
2. Remove the three (M2.5x3.5) screws that secure the left-display hinge to the computer.
3. Lift the mylar cover.
4. Peel the adhesive tape to unroute the I/O cable.
5. Open the latch, and disconnect the I/O-board cable from the system board.
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Disassembly and reassembly