I met so often the problem that the screen turns black and of course the device becomes completely unsuable. I cannot say when it happens, it is totally unexpectedly; the only thing I can do is to remove the battery to reset it. Even that, sometimes, we'll just have to wait or put it "on charge"....Have you any idea??
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If your BlackBerry gets covered in water, act fast and rationally, and you may be able to save your device.
1. DO NOT TRY TO TURN IT ON 2. Pull out the battery. 3. Please your device and battery into a bowl of uncooked rice to absorb any moisture. 4. Please it in a warm, dry place where it can receive direct sunlight. 5. Be patient. It is recommended that you leave it in there for at least 48 hours. 6. After 48 hours, put the battery back in and power on.
A big black mark (often looks like an ink blotch) on a mostly white screen usually means that the screen was somehow damaged/broken. The Dash is a rather good device; however, it's been known to experience cracked (inner) screen issues on a slightly more frequent basis than other comparable mobile devices.
The company that I work for sees this issue a few times a month with the Dash, and unfortunately it's just a matter of replacing it at this point.
I'm sorry this isn't a happier answer.
Please let us know if you have any other questions!
Sometimes the SIM card will cause this problem. The first thing I'd do is ask T-mobile if they can diagnose this issue down to your SIM card and have it replaced. If that's what it is anyway.
How often do you turn it off? ( you should turn it off regularly, at night when it's charging or whenever ) Do you have a lot of stored info that you do not use? It could be corrupted, try erasing some things you don't use anymore. Just a couple things to try.
Received the following reponse very promptly from HTC Support
---Quote--- This is actually a function of the phone and not a fault. It was designed so that when you were on a call and had the phone against your ear that you didn't accidently tap on the screen and open functions or end the call etc. If you wish to access the touchscreen while on the phone you can press the power button on the side of the phone to turn the screen back on. I have attached a 3rd Party Application that allows the screen to stay on while you are on a call. Follow the below steps to install the program.Attached is a patch for the TyTN II screen blackout issue. This is not an official fix.
Copy the KaiserTweak.zip folder to your pc's desktop.
Connect you device to the pc via ActiveSync.
Use the Explore function in Active Sync to copy the KaiserTweak.zip folder to the windows directory on your TYTN II.
Disconnect your TYTN II from the pc.
Open up file explorer on your TYTN II and go to the windows directory
Unzip the folder to the windows directory on the TYTN II
Run the Kaiser Tweak.exe to install the patch.
Adopt the recommended configs, not the default.
Soft reset the TYTN II by pressing the stylus into the little circle hole on the bottom of the handset.
If it doesn't work first time hard reset and try again.
---End Quote ---
Thanks to the FixYa guys for thier intererst in this topic and problem