As some people reported here my touch screen stopped responding. I've tried reset and hard reset and can't go further because of alignment step. The buttons are working ok so i'm afraid that the touch screen is down. I've dismantled the pda to see if all the connectors were ok, and haven't noticed anything wrong. I'm still hoping for a software solution because changing the touch screen would cost too much and would be delicate.
I've tried the Pre Boot and Boot Loader and both make the ipaq starting on the bue and white screen with the gauge empty and not filling, and the message WLAN MISMATCH. It stays on this screen and nothing more happens.
Thank you for answering Ekse :0) Anyway, i've ordered a new LCD screen as i've found one not too expansive.
The Boot Loader make the pda starts with the hp blue and white screen with the thin gauge which stays empty and there is a message under : wlan mismatch. Nothing else happens after that, the pda is locked so i have to do a reset. (i hope i'm clear, sorry for my english)
Pre Boot Loader does the same.
I realised that i posted in the wrong section i hope you've seen in my title that my pda is a hx2750., sorry for the mistake.
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ur touch panel is faulty u have to go to service centre , there are 3 things coupled together Lcd screen then touch panel and then front housing for protection of both , u might dropped it , if ur screen is working partially i mean if it responds to taps at some region of screen then it may be a dust inside the housing u have to clean it from inside if u can , otherwise if it completely not responding then it is faulty touch panel , it will cost u around 50 , 60 $
At times, Touch screen does not respond and phone cannot be unlocked by no means, Problem do not get solved even after restarting phone, removing battery & reinserting etc.. This happend typically during nights when the phone is not used and in the morning, touch screen does not respond to do any activities. after installing a software i had a hard reset, after that my tuch screen did not work.please help meeeeeeeeeeee ! !
You may have dust accumulation around the edges of your touchscreen, between the screen and the case.
Try using a can of compressed air. Gently press down on the edges of the touchscreen to expose the gap between the screen and the case, and shoot the air in there. This worked for me when my Treo 600 touchscreen stopped responding.