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If you can't remember your passcode, you may have to do a hard reset(factory settings) if you have a sync folder on your computer, there is your backup. To do a hard reset: 1. Remove your iPAQ from the cradle, making sure that it's running on the internal battery power.
2. Use the stylus to press down the recessed reset button on the back or side of the iPAQ.
3. While the reset button is held down, press the On/Off button.
4. Release the reset button.
When you press the On/Off button again, your iPAQ turns on and all your files are gone. To avoid repeating this major disaster in the future, you should back up your iPAQ files on your desktop PC. Activesync will generate another folder,and you will have to rename your pocket pc. But once your past that point, open both folders and drad and drop into the new folder. Hope this helps.
How to correct iPAQ 5450, 5455, 5550, 5555 battery charging problems / dead unit syndrome.
The iPAQ 54xx or 55xx will not power on if the batteries charge is lower than 3.2 Volts, if your battery charge falls below the 3.2 volts level your unit will not turn on, you need to plug the iPAQ into a cradle or AC charge adaptor. Note the charging light on the iPAQ will not flash at all (normally flashes orange) until the battery charge has reached a minimum charge level of 3.2 volts. You then need to perform a normal reset, then the unit should switch on normally.
HP Procedure is as follows:
To charge and reset the iPAQ Pocket PC h5400:
i) Connect the iPAQ Pocket PC h5400 to an A/C power supply. ii) Charge the battery to the minimum level of 3.2 Volts. This will take 5 to 30 minutes depending on the current charge level. iii) Perform a normal reset. iv) Power on the iPAQ Pocket PC h5400
It is recommended that you keep the iPAQ Pocket PC connected to the Universal Cradle or Cable when it is not in use.
The automatic brightness feature is useless to me because of two reasons.
First, it is too dark to start with.
Second, it does not respond as fast as I like to see.
I end up using only two default settings- Battery or AC mode.
Doosoft's mobsync is brilliant. I have used it for a year now to back up my SD card. It starts automatically when doccked. Also allows me to specify folders to back up on different schedules.
Try to disable any security software (i.e. firewall, anti-virus)
then go to My Computer, right click on the CD-Drive that has the Companion CD, select Explore and install the software manually from there on.