CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.

Insert a needle, paper clip, or a long thumb tack into the hole on the SIM tray. Press firmly and push it straight in until the tray pops out.

CAUTION: The SIM tray is fragile. Handle it with care to avoid damaging it.