I have A quickfire GTX75 sdcard is no supportig & net not working,bluetooth allso

SOURCE: AT&T QUICKFIRE Model: GTX75 IMEI: 351904022312464 S/N: 0850000864

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SOURCE: I have a Quickfire GTX75

Bluetooth should work fine, just pair it with your headset or hands free.

Make sure it's unlocked. GPS and internet require data, so make sure you buy a SIM card with data on it. Many SIM cards only have voice (minutes).

Good luck!

SOURCE: unlock code for quickfire GTX75 IMEI 351904022622052

you can get the unlock codes for your at&t quickfire either from your service provider or from other online providers like Simpleunlocking.com. i got my phone unlocked here and Mobileunlockguide.com provided me the instructions to unlock my phone through codes.