This guide available in both video and text will show how to replace the fan on the GPD Pocket 4.
Remove the seven screws on the bottom of the GPD Pocket 4
Remove the two screws on the back side of the mini laptop case.
Remove the two screws holding the fan in place
We recommend using some warm air to warm up and soften the glue to make it easier to peel back the tape.
Peel back the tape on top of the fan
Use tweezers to disconnect the fan cable from the board
You can now fit the replacement fan, connect the cable, stick the tape back down, fit the fan screws. Then fit the case and fit the screws on the back and bottom.