Lenovo A7 30 Tablet - Manual (Page 55)

Lenovo A3300
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16. Remove the side key FPC from the PCBA.
17. Desolder the wires of the speaker from the PCBA using a soldering iron and
a solder sucker.
Figure 7-16. Position of desoldering the speaker wires
18. Remove the speaker from the PCBA.
19. Peel off the conductive fabric and mylar on the soldering pad of the front
camera.
Figure 7-17. Peeling off the conductive fabric and mylar