How To: Hard Reset/Factory Reset T-Mobile G1

Returning your unit to T-Mobile or for any other reason, you wanted to perform factory reset the T-Mobile G1? Here is how to do it:

• Power off the G1
• Hold Home Key + End key for 20 seconds or till you see a triangle with an exclamation point and a picture of the G1
• Open the QWERTY keyboard and hit Alt+W