the speaker not working during disassembling - Google Pixel 4 XL Questions & Answers

Hi everyone, I was using B-7000 glue to fixed the back, but unfortunately I used too much and some drop into the power button, when I tried to clean it I broke the wire. So I went to buy a Original power&volume button wire from network, and after disassembled whole logic board I finally changed it. It works, but when I Reassembly this phone, the speaker and Vibration didn't work anymore. It connects board by Metal contact,so I have no idea which is broken. I bought a original speaker from network, it shipped today, but I replaced it still not working. Does anyone have ideas? I will be very grateful!

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Flex Cable Ribbon Problem

Hello everyone,
Yesterday i disassembled my diamond to solve a problem with the keypad, that was protruding out of his place. I figured out that it was a structural flaw and with the help of my instruments i solved the problem.After that i assembled back all pieces, but when i tried to power on the device it works coz i can hear sounds and other stuff, but lcd screen is not powering up.
So i noticed that the ribbon flex cable was a bit damaged from the aluminium cover placed under the battery. I suppose that the problem is dued to that, but i'm not sure of it. So i need a confirmation that the LCD power is connected to that ribbon cable, so i can purchase the replacement. Thank you. The cable is the one in the attachement.
bump.
anyone??
up, noone knows the function of that piece?
yes, u need to change tat cable
yes, i supposed that. If someone knows the role of that piece i'll be grateful ;P

Can anyone help me?

Hi i have had an x1 since august but within a month its been dropped and then it was unable to show the screen, i opened my device to try and fix my problem but messed with nothing whatsoever, when i put everything back together it wouldnt even turn on anymore! all it did was charge and when it was fully charged there was a red light. can anyone help me? please im desperate to fix my phone. My first paycheck was spent on this and i loved it despite the numerous flaws! also i havent charged it in over 2 - 3 months. Also when i opened it the tape that connect the rear and the front is kind of messed up, would that effect anything?
The tape that connects the front and the rear is the cable for the screen, so if it's messed up, you might need to get a replacement.
here is a pic, the red part where its circled is where i think the problem is, it looks ripped off, i did have a hard time opening and putting it back together the first time also.
Sounds like (Or rather, looks like) you're screwed, as far as I can tell, if it's really ripped. Otherwise attempt to clean the contact points with some cleaning alcohol and Q-Tips - something might have made it's way in when you disassembled the unit and blocked the electrical signals.
ill try it, but if that doesnt work, would i be able to replace the flex ribbon? would acteone work?
got this checked out by my friend, he told me its the flex ribbon cable, thanks for the help btw. Does anyone know the cheapest place to get a flex ribbon cable from?
Still would like confirmation if its my flex ribbon cable before i spend 40 bucks on a new one. thanks!
Hi, I am new to this forum. Sorry for posting here but I think I have similar or same problem with my xperia. Few days ago I drooped my xperia and then I could not turn it ON. I opened unit, the flex cable was detached.
After attaching the flex cable. I could turn the unit and it booted normal but no response on touching screen I even tried to align it but it did not respond. I turned off the unit. After trying turning it back ON only back light of the screen turned on (no sony logo, no xperia logo no winmo).
I tried to turn it on few times but same result. Even tried to soft reset and hard reset it but no difference only back light. Is it because of flex cable or because some thing else? I can`t even go in to 3 color screen. Please help. Sorry for my bad eng. Thanks.

Black screen at boot

hi, i've got an xperia x1 and when i boot i only get a black screen, i'm not sure but i think touch isn't working. volume works because i can hear the sound. plz help me fix this!!! i've got no phone now
plz pm me
kakker-kakkerlak said:
hi, i've got an xperia x1 and when i boot i only get a black screen, i'm not sure but i think touch isn't working. volume works because i can hear the sound. plz help me fix this!!! i've got no phone now
plz pm me
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Click to collapse
So you think that the phone is working, just that the screen isn't? Maybe the ribbon between the two halves of the phone, is loose? Do any buttons on the top half work e.g. Call, End Call, Up, Down, Left or Right?
Sounds like you got a flex ribbon issue. My phone first started acting strange as it went black when in landscape mode and then eventually the screen went black altogether. Volume worked and everything but the screen was messed. I had it happen to me twice in 15 months, with the first time happening when I still had warranty on my phone. I sent it off to SE to get it fixed and it took them over 5 weeks to get my phone back to me. If you phone is still in warranty you might want to send it them to get it fixed. If not, SE can fix your phone for a fee. Not sure what the price is though because they told me that they couldn't attempt to fix it because I told them my phone had water damage marks on it. If you are brave and bold, you could open it up yourself and try to fix it. I ordered a flex ribbon from Cnn.cn and am awaiting delivery. You can find instructions on how to disassemble your X1 via this forum or search it on youtube. There is also another thread around the forum that has a flex ribbon fix and the author's guide to having his flex ribbon last longer. I'm at this stage now, I have my X1 disassembled and awaiting the ribbon and a new housing to replace my old cracked one. If you do want to attempt to open it up, you'll need a torx t6 screwdriver and a small flathead (the screws on the X1 are phillips but my experience is that it strips it more than unscrew it).
Good Luck and hope this helps.
sopdogg said:
Sounds like you got a flex ribbon issue. My phone first started acting strange as it went black when in landscape mode and then eventually the screen went black altogether. Volume worked and everything but the screen was messed. I had it happen to me twice in 15 months, with the first time happening when I still had warranty on my phone. I sent it off to SE to get it fixed and it took them over 5 weeks to get my phone back to me. If you phone is still in warranty you might want to send it them to get it fixed. If not, SE can fix your phone for a fee. Not sure what the price is though because they told me that they couldn't attempt to fix it because I told them my phone had water damage marks on it. If you are brave and bold, you could open it up yourself and try to fix it. I ordered a flex ribbon from Cnn.cn and am awaiting delivery. You can find instructions on how to disassemble your X1 via this forum or search it on youtube. There is also another thread around the forum that has a flex ribbon fix and the author's guide to having his flex ribbon last longer. I'm at this stage now, I have my X1 disassembled and awaiting the ribbon and a new housing to replace my old cracked one. If you do want to attempt to open it up, you'll need a torx t6 screwdriver and a small flathead (the screws on the X1 are phillips but my experience is that it strips it more than unscrew it).
Good Luck and hope this helps.
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Click to collapse
thx for helping me, but the buttons on te front still work and i've got a black screen from booting up, when i slide nothing happens because the screen was already black. so is this still a ribbon problem?? or should i just hard reset and see what happens.
thx everyone
Definitely Flex ribbon issue. I replaced mine and it worked for a bit and now it's gone and done the same thing again. Black screen at start up just like you, sounds and buttons working and everything. I went ahead and replaced the newer flex ribbon with my older one (trying to see if taping up the ribbon would fix the issue) and it worked...until I slid up the keyboard and it went black again. So from my conclusion, yes it's a flex ribbon issue. Thinking about giving up on the X1 altogether now.

LCD won't turn on - help

Hello, guys!
Recently I bought an HTC One with cracked digitizer, but functional. It had a lot of scratches etc, but this is not important right now. I wanted to do a complete make-over so I bought replacement parts from the internet, I bought the front housing with the LCD screen and the back cover. I dissasembled the phone from the old housing (the one with the broken digitizer), and I assembled it back on the new housing. After all of that, I powered on the phone and it worked like a charm (the LCD and the touch-screen worked perfectly), but then I saw that the glass was a little out, I mean it was upper than the speakers cover, so I decided to take out the whole screen and to change the adhesive, because it was too loose and the screen wasn't staying properly. I succesfully did that, i put the screen back and everything was good, but when I wanted to start the phone, the screen remains black. And this is the problem I have. I mention that I worked very carefully with the screen, so I don't think the problem is at the screen. I disconnected and reconnected all the cables and still doesn't work. When I press the power button it vibrates and then it's making that sound like the phone is booting, but no image on the LCD. If I keep the power button pressed, the back and home buttons are blinking and then the same story as before, vibrates and then the sound. I really don't know what could be the problem.
I really need some help with this and I'm open to all of your suggestions. If you want more informations feel free to ask.
Thanks in anticipation!
To me it looks like you damaged one the flat flex cable.
When you took the screen out did it come like suddenly and maybe some tension was applied to the flat flex?
If I were you I would take it apart and verify the connection in the socket, maybe the socket was damaged or something and it doesn't make a good connection
I hope it works out for you
Thank you for your answer!
When I took out the screen, I took it out very carefully and there wasn't any tension applied to the flex cable, so I don't think this is the problem. I think it's more likely a problem with the socket on the motherboard, like you said, and it's not making a good contact. But what can I do about that?

Problem after screen replacement

I've got a replacement screen that my friend had in his house. Mine was broken (both the display and the digitizer, the latter was acting very weird). I did the replacement myself, and when I was finally done, I noticed something. The Touch Screen wasn't working (I could see the image but no input was recognized). I tried opening it and checking every single cable to see if there was anything wrong, but there was nothing looking broken or out of place. When I was going to test it, I noticed another very weird thing. It actually works if I keep the back of the phone off (not the back interchangable cover, I mean the back of the phone that is screwed in place). The problem is that this phone has a very annoying design that makes it so the Wi-Fi, Speakers, Camera and some other stuff don't function well with the back plate off, speacially the Wi-Fi.
I trully have no idea what is happening or what is causing the problem with the touch screen, and have no idea why the back plate makes the screen act funny. Can someone please help me figure this out?
Perhaps something in the digitizer's flex cable is shorting with the back panel. Try putting a layer of electrical tape between the flex cable and the back panel.

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