Is your battery working? That is, can you charge the battery and run the laptop for at least a few hours without AC power? If the battery is aging, is not working at all, or is working poorly I would suspect that your battery may have swelled and deformed. Aging or malfunctioning batteries can swell and change shape dramatically. You say you removed the battery, did you look to see if the trackpad was in its normal position while the battery was was out of the upper case? If you remove the battery again inspect it carefully. The top and bottom surfaces should be quite flat and sighting along the edges it should not be bowing. Unless the laptop case has suffered some physical damage from a drop or other trauma a warped battery is my best guess as the cause of a "raised" trackpad. I can't help you identify the two loose screws for certain. Are they black like the other internal Phillips on this laptop? I believe the longest black Philips screws inside that model are 7.1mm (from the fan), 8.3mm (with a shoulder, these hold the heat sink), 11mm (hard drive bracket), and 12mm (only one at the top of the rear speaker housing).
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Is your battery working? That is, can you charge the battery and run the laptop for at least a few hours without AC power? If the battery is aging, is not working at all, or is working poorly I suspect that your battery may have swelled and deformed. Aging or malfunctioning batteries can swell and change shape dramatically. You say you removed the battery, did you look to see if the trackpad was in its normal position while the battery was was out of the upper case? If you remove the battery again inspect it carefully. The top and bottom surfaces should be quite flat and sighting along the edges it should not be bowing. Unless the laptop case has suffered some physical damage from a drop or other trauma a warped battery is my best guess as the cause of a "raised" trackpad. I can't help you identify the two loose screws for certain. Are they black like the other internal Phillips on this laptop? I believe the longest black Philips screws inside that model are 7.1mm (1 from the fan), 8.3mm (4 with a shoulder, these hold the heat sink), 11mm (2 from the hard drive bracket), and 12mm (1 at the top of the rear speaker housing).
Is your battery working? That is, can you charge the battery and run the laptop for at least a few hours without AC power? If the battery is aging, is not working at all, or is working poorly I would suspect that your battery may have swelled and deformed. Aging or malfunctioning batteries can swell and change shape dramatically. You say you removed the battery, did you look to see if the trackpad was in its normal position while the battery was was out of the upper case? If you remove the battery again inspect it carefully. The top and bottom surfaces should be quite flat and sighting along the edges it should not be bowing. Unless the laptop case has suffered some physical damage from a drop or other trauma a warped battery is my best guess as the cause of a "raised" trackpad. I can't help you identify the two loose screws for certain. Are they black like the other internal Phillips on this laptop? I believe the longest black Philips screws inside that model are 7.1mm (from the fan), 8.3mm (with a shoulder, these hold the heat sink), 11mm (hard drive bracket), and 12mm (only one at the top of the rear speaker housing).
Hope this helps, and good luck!