La Mayoria de hardresets

http://www.hardreset.eu/

espero que le ayude!

android tmobile mytoch slide hard reset
Here's the Procedures:
1. Turn the power off. If your HTC myTouch 3G Slide is frozen, pull the battery out and reinsert it
2. Hold the Volume Down button
3. Press and release the Power button
4. You are now presented with a menu that allows for Fastbook, Recovery, Clear Storage, and Simlock
5. Select Clear Storage by pressing the Volume Down button
6. Press and release the Power button
7. For confirmation: Volume Up for YES and Volume Down for NO

If YES is selected, all data including third-party applications will be deleted from the HTC myTouch 3G Slide. Once the wipe is complete, the phone will reboot to its factory fresh state.
Thanks