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Screen is blank but touch screen works ***HELP***

I recently got a touch pro of a friend with a damaged screen that didn't turn on but the touch screen was responsive. Apparently he sat on it and the screen broke.
I then acquired it and replaced the LCD screen and i turned it on but all it shows is a blank black screen with the backlight on. I was tapping while it booted up and it was making that beep noise so i know the touch screen works. What do i do now.

dazz245 said:
I recently got a touch pro of a friend with a damaged screen that didn't turn on but the touch screen was responsive. Apparently he sat on it and the screen broke.
I then acquired it and replaced the screen (with digitalizer) and i turned it on but all it shows is a blank black screen. I was tapping while it booted up and it was making that beep noise so i know the touch screen works. What do i do now.
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if the lcd is damaged and you only replaced the digitizer then that wont solve the problem, the digitizer just sits ontop of the lcd and recognizes your touches, hence why it mite know that your touching the screen but the screen is still blank

mancsoulja said:
if the lcd is damaged and you only replaced the digitizer then that wont solve the problem, the digitizer just sits ontop of the lcd and recognizes your touches, hence why it mite know that your touching the screen but the screen is still blank
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I replaced the LCD along with the digitalizer. Tats what i meant.

Sounds like either the new screen is inop on fit (fraid you need another to test, then send the first back as faulty), or the fault is not the LCD itself.
Possibily its the wrong screen, or its not installed correctly, or you damaged either the screen or the controller when installing.
I'm afraid you dont have many options - take it apart & rebuild to ensure correct parts & fitment, spend £££ on alternative parts to see whats broken (or serious £££ on test equipment!), send it off for repair or give up!
I'd go for option 1 first
If your friend sat on it hard enough to break the screen, i'd be looking for any damage / cracking to the boards / ribon cable mounts and be looking very carefully at the mountings of any IC chips. Incedently, when (s)he sat on it, did the screen work at all? and was it 100% working before they did?

Okay thanks for the replies. I just bought a flex cable where the slider thing is because the old one looked a bit old and flexed out and on inspection of the old screen i found a tiny rip on the screen's flex cable too. I wait for my cable and see if it works and if it doesn't then i'll sent the screen back as faulty and get a new one and if that doesn't work then I'll give up and sell it again

hi
sorry to wake up an old thread.
so what's your solution/conclusion?
is it the flex, or the LCD that broke?
i have the same problem right now.
thanks

was mainboard

[Q] Problem with digitizer... or not?

Hi,
some time ago my digitizer stopped working - there was visible a small dark spot, which resulted in erroneous signals to my Raphael. I replaced the LCD and digitizer with a new one, but still there is something wrong - Raphael does not respond to touch - tapping the screen doesn't cause effects. But if the screen dims, touching it restores the normal brightness. And what is strange that Raphael sometimes restore brightness immediately after getting dim, and this cycle repeats over and over again.
I uploaded new ROM, then the stock, always the same. I have no idea what might be damaged, any idea? A relay, tape, cable...?
Thanks for any help.

Ok, I know everythink. It's broken flex tape connecting LCD and mainboard.

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Was the phone every dropped? It could be the LCD or motherboard. I think the only way to really tell would be to move the motherboard to a working phone to see what happens when you try to boot.

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Hey everyone!
As you see on the title my screen is black even I can hear the notification sound, The LCD display has been changed because the old one was broke and I thought that was the problem, then I changed the LCD display, it stays black. And after reading some suggestions says the flex cable should be the problem, I changed it too, NOTHING RESOLVED THE PROBLEM.
Note: all parts ordered on Aliexpress.
Thanks for giving any suggestions or solutions.