My htc hd2 wont start up keeps turning itself off and back on agin help

I don't know if this is the same problem, but I know a site whom is dedicated to htc phones. You can try in here and see i=f they can help you. www.htcimeiunlockcodes.com/

I have the same problem on my HTC HD2 T8585

I thought it was a battery, but I bought a new battery. The problem comes on when the charger is pluged and then shuts off in seconds and turn back on and to the same thing over.

I'm sorry, but I think you will need to contact T-Mobile for support. Call them from another phone at 1-800-T-Mobile.
If you don't care much about the info on the phone, then do a hard reset to factory defaults.

http://www.hard-reset.com/htc-hd2-leo-hard-reset.html

CAUTION - DOING A HARD RESET, YOU WILL LOSE EVERYTHING ON YOUR PHONE. REMOVE THE MEMORY CARD BEFORE DOING A HARD RESET.

Good Luck,
Mark

my phone did this you will have to master reset your phone turn phone off hold both volume buttons down then go through the process

Hello Friend OK open up the back cover under the battery on the left side is a small hole/button get a pen and press it then turn on your phone. :)

take a look at this link i found, it shows you how to do a soft reset on your htc hd2:

http://www.htc.com/europe/howto.aspx?p_id=297&id=181

HOPE THAT HELPS.

Well you can click on start then settings go to Today then Items and see if the Htc sense is checked or not. It should be checked and your problem will be solved. If still no help then you can hard reset your phone. Method to do Hard Reset is turn off your phone and while holding the volume keys up and down press the power button and it will take you to the hard reset screen now if you press volume up then you phone will be hard reset and come back to factory settings but you will loose all the phone book and other data on the phone. I hope this will help.

My HTC HD2 has suddenly starting giving text in half english and half french - how to I solve this, it just started on its own one fine morning.