Black screen after screen replacement. Backlight, phone and digitizer works - Moto G Q&A, Help & Troubleshooting

Hey guys, I need your help. I have a Moto G 1st gen.
My screen shattered a while ago, and I bought and replaced the front glass panel, and after turning on the phone, I get no display. The phone boots, and the back-light works. The vibration feedback also works, and I see on my router that it's connected to the internet. However, I get no display, just a blank screen, no boot logo, nothing.

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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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Click to collapse
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
Click to expand...
Click to collapse
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] Moto G brightness really dim

My Moto g brightness is really dimmed to the point I can not see the screen. First I thought it was the screen display. So I brought a new one but i'm still having the same problem. Then I took everything apart and I'm left with the motherboard, battery and the screen. When i plug them two things in the motherboard and turn on the phone and put it near a lightbulb, I can see the screen. I'm wondering how I can fix this problem. Please help.

Screen won't turn on at all after swaping mainboard - Any advice?

Hi all,
I had broken my phone's back cover and bent the middle frame too. So I bought a live demo version of S6 to use it as a donor. I swapped the mainboards over and only can here the noise it turns on and buttons light up, notification light come up but the screen stays black. So I swapped the mainboards back and with the demo mainboard the screen comes on as it should. Even I tried a third mainboard from a working phone the screen remains blank with that too.
Not even the charging logo would come on with different mainboard!
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Moto G3 2015 (XT1550) hangs on boot screen after Touch Screen / LCD replacement

Dear All,
I have replaced the broken touch screen lcd display on my Moto G3 XT1550 (Indian version) through AliExpress (since it was not available from Moto service centre yet). It was done by an experienced technician who services many mobiles and known by me for last 1 year at least.
There was only one ribbon connector to connect the display to the board.
I am facing a serious problem now. With the new screen replacement, my Moto G3 is stuck on the boot screen. If I connect the old display back it boots as normal. There were many users who have simply replaced and got their phones working; hence I ordered the same.
We have tried connecting the display live after booting with the old display. Then the new display works perfectly as long as you do not switch the power off. Once you power off and on, the phone is stuck on the boot screen.
Can anyone help with any suggestions?
Thanks and regards,
Jacob
Hmmm , try flashing stock , with the new display installed, via fastboot

Display not working continuously after screen replacement

Hi
I have Mate 7 MT7-L10.
I smashed the screen and bought replacement screen from ebay.
After replacement phone started OK for 2min. After that no display.
I took of lcd connection and reconnect but no luck.
Then tried battery connection and reconnect after few seconds.
It started for a while then turned off again.
So need to do the battery and LCD connection again to get the display.
If I don't flip the phone it stays on display.
As soon as I flip over to put all screw and put the back cover display goes off. Then I need to reconnect everything.
I got display more more than 30 min while just left stable.
Any idea how to fix this.
Thanks
I have the same problem, but in my case the screen displays a set of white footprints, the date and time. It won't let me get past that after. I know it's not the digitizer since I can boot into recovery twrp and make selections, but booting the system brings me back to the display of the footprint in the center screen. No idea why it's like that...only after I replaced my broken lcd it gives me this problem.

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