Acer DX900 User Guide - Page 31

Clean Boot Cold boot method: Press and hold both POWER button and RESET button for a while, then release them simultaneously. Wait for a few seconds until the screen wakes up displaying the model name, firmware version and firmware build date of your device, instantly press and hold . Appropriate situation: If a previous reset has already been attempted and the Pocket PC is still unable to maintain normal operations, has no response, or if the screen is frozen. Before executing the preceding "Cold boot method", please carefully consider the following instructions and then decide on the cold boot method. 1. After a cold boot is performed, if no buttons are pressed, when Pocket PC automatically completes the system startup process, the last display will be the Today screen. This is identical to the reset result. 2. If a previous reset has already been attempted but the Pocket PC is still unable to maintain normal operation, consider the following solution: Press and hold both POWER button and RESET button for a while, then release them simultaneously. Wait for a few seconds until the screen wakes up displaying the model name, firmware version and firmware build date of your device, instantly press and hold . Continue pressing and release it when you see this message shown on the screen. 1-19