Pls, I changed the screen, touch pad and the flex of a blackberry touch (9800)and I now have a problem. When I slide it open it functions perfectly, but sliding it down makes all the keys to stop respondin. Even if I press the front key pad or calls come in, the screen light does not display until I slide it open bfore al others start workin again. Pls I really need to know wat to do. I ve changed the flex again thinkin it is flex problem but no change. Pls I need a clue on wat causes this so dat I can fix it
Thanks
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Please do not post in textspeak.

You have opened your device, and thus voided the warranty. You need a new device.

Tunsforever please give send me a private message and I will attempt to help you troubleshoot this device with you.