when i connect the treo 600 to a charger it hangs only if it is in wireless mode.if i put in a SIM card and charge it the phone works fine..
the problem comes when suddenly the phone hangs even after connecting it properly..it performs a hard reset automatically and all my data gets erased.
i have to keep synchronising my contacts from the desktop along with all of my settings..
sometimes the red charging light doesnt show even if the battery is charging..
i have tried a battery reset too..my internal radio was reset along with the charging circuitry.
please help me out
i cant update the firmware either as it requires the phone to be connected to the charger when restarting

I don't know much but the cable for Hotsyncing the phone to the computer has a side port. Plug the power cord into that and now you can Hotsync with power.

2nd option is to make sure after one of the bad hard resets you leave just the native ware in the phone. Nothing extra. try that for a week. If it works then slowly add one program after another.