HTC G1 "battery shows yellow triangle" Questions

shows a triangle on the screen. Turn the G1 off. If it’s frozen on, take the battery out and put it back in the unit.Hold the Home and Power keys down at same time for about 25 seconds. You will see a

battery out and put it back in the unit. 2. Hold the Home and Power keys down at same time for about 25 seconds. You will see a yellow triangle screen with exclamation point in the middle. Now to wipe