[Q] Nexus 7 2013 WIFI no display after dropping - Nexus 7 (2013) Q&A

hello!
Had my nexus 7 2013 WIFI for about a year. Its in a moko hard case. Yesterday it was dropped on carpet but from about 9 ft high, it continued to work. The next morning, it was power on but no display. once i plugged it in, display came on. battery was not discharged. by evening, no display at all. snowy screen once. the tablet boots up fully. ADM can locate and ring the device, it shows on my wifi router etc. But no display at all. the closest to display it came is showing the Google logo during boot up.
so it looks to me like the screen connector came loose.
EDIT: Ok, i opened the back case. Yes, it is the loose screen connector. if i press down on the gold ribbon connector, screen is on. now i got to figure out how to fix it.
can someone help me fix this?
Final edit: I fixed the display ribbon connector by inserting it into its connector firmly. everything is well.
thank you

Contact Service Center
Dude this is a matter of hardware information for which I think only the Service centers will be helpful.

iamdipchat said:
Dude this is a matter of hardware information for which I think only the Service centers will be helpful.
Click to expand...
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if you have spent anytime on these forums, you will notice there are several hw problems for which other users have provided valuable insights. nothing wrong in asking for help

Related

Damaged touchscreen - can the rest be salvaged?

Hi everyone.
After a sudden heavy rain, I got some water in my Gnex. I tried the old bag of rice trick, only to find out the USB port was not functioning any more, neither for PC connectivity, nor for charging.
Following the advice of a person I no longer consider my friend, I tried spraying some Isoprpyl Alcohol in the USB port. It did get it to work correctly, but it damaged the digitizer, meaning I get random touches on the lower part of the screen (where the Back, Home and Recent apps buttons are).
I took the phone to a service centre where they tried to clean it, but the issue remains. I'll go there today with my wife's phone to see if it's indeed a touchscreen issue or a motherboard issue. I'm not sure if I want to invest in a new screen (over $100 + maybe a new back cover since the current one has quite a few scratches and cracks) and I'm thinking of maybe upgrading to a Nexus 5 or Xperia Z (the latter being waterproof).
The question now would be, could I do something with the hardware? Like, root it, connect it to my wifi and use it as a web server, or connect it to my TV through an MHL adapter and get a "smart TV". Can I get it to ignore touches on the screen completely, and only accept an OTG/bluetooth mouse input?
Any idea is welcome
vladk2k said:
Hi everyone.
After a sudden heavy rain, I got some water in my Gnex. I tried the old bag of rice trick, only to find out the USB port was not functioning any more, neither for PC connectivity, nor for charging.
Following the advice of a person I no longer consider my friend, I tried spraying some Isoprpyl Alcohol in the USB port. It did get it to work correctly, but it damaged the digitizer, meaning I get random touches on the lower part of the screen (where the Back, Home and Recent apps buttons are).
I took the phone to a service centre where they tried to clean it, but the issue remains. I'll go there today with my wife's phone to see if it's indeed a touchscreen issue or a motherboard issue. I'm not sure if I want to invest in a new screen (over $100 + maybe a new back cover since the current one has quite a few scratches and cracks) and I'm thinking of maybe upgrading to a Nexus 5 or Xperia Z (the latter being waterproof).
The question now would be, could I do something with the hardware? Like, root it, connect it to my wifi and use it as a web server, or connect it to my TV through an MHL adapter and get a "smart TV". Can I get it to ignore touches on the screen completely, and only accept an OTG/bluetooth mouse input?
Any idea is welcome
Click to expand...
Click to collapse
One day I got caught in a storm having my Gnex in my pocket. Vacuum and rice tricks didn't work completely, as the phone was working properly besides recognizing the sim card (Mboard issue). What I did was buy a broken screen nexus off of Ebay, and exchanged the screens.
Now I have a fully working mobile phone, plus an MHL connected - XBMC enabled smart TV box, connected with bluetooth mouse/keyboard.
Question: Why would you need to ignore touches on the screen?
As I said, after spraying the USB port with isopropyl alcohol, it appears to have touches all over the bottom part of the screen, as if someone was constantly keeping 3-4 finger and touching away at the soft buttons. Cleaning the phone in a service centre did not help.
vladk2k said:
As I said, after spraying the USB port with isopropyl alcohol, it appears to have touches all over the bottom part of the screen, as if someone was constantly keeping 3-4 finger and touching away at the soft buttons. Cleaning the phone in a service centre did not help.
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Click to collapse
Sorry, I missed that info. Try searching for 'touch blocker' in Google Play. Don't know if that would work on a Gnex though.
Another (hardcore) idea would be to disconnect the screen altogether.

[Q] Galaxy Nexus Charging Issue

I had a samsung galaxy nexus for sometime. I was having a charging issue and followed a solution to lift the tongue of the charging port. Unfortunately, I did it too hard and broke the tongue. Being in India Samsung repair centers refuse to fix the thing. Left it idle for three or four months. I found a market in delhi where a guy replaced the port(PS - He was a professional). But unfortunately it still does not work. The port is fixed but the phone is still not getting charged. The glass on the top was broken but the screen was working fine. Today I tried plugging it to my computer and computer made a weird alert noise and an alert of uplugging a device. I am so much in love with this phone. Can anyone help me with this problem? Any solution will help. I you guys cannot help me then maybe no on can.
puneetpareenja said:
I had a samsung galaxy nexus for sometime. I was having a charging issue and followed a solution to lift the tongue of the charging port. Unfortunately, I did it too hard and broke the tongue. Being in India Samsung repair centers refuse to fix the thing. Left it idle for three or four months. I found a market in delhi where a guy replaced the port(PS - He was a professional). But unfortunately it still does not work. The port is fixed but the phone is still not getting charged. The glass on the top was broken but the screen was working fine. Today I tried plugging it to my computer and computer made a weird alert noise and an alert of uplugging a device. I am so much in love with this phone. Can anyone help me with this problem? Any solution will help. I you guys cannot help me then maybe no on can.
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Click to collapse
Hmm. Sounds like maybe you should try taking it to a more upmarket shop. I had this problem (though I didn't actually snap the tongue), and I took it to a repair shop and they fixed it. Maybe the problem isn't just the tongue, but something else.
Also, it sounds simple, but have you tried a different charger?
Maybe you need something like that:
"Samsung Galaxy Nexus i9250 USB Charger Charge Charging Dock Port Connector Flex"
I can't post links so you have to search by yourself.
I changed it today because my GNex always showed "charging" although it wasn't plugged in.
Why don't you try to use a different charger?

N7 screen went black

Yes, like it turned itself off but it did not go off as I was still getting audible email notifications. Tried everything speaking with Google support and then even Asus support who told me to go to their website and fill in an RMA form. This unit is 13 months old-out of warranty. There is nothing on the form relevant to the nexus to fill in so you cannot continue with it. So I am stuck right now and do not know what to do if anything. Any help would be appreciated.
claypoole said:
Yes, like it turned itself off but it did not go off as I was still getting audible email notifications. Tried everything speaking with Google support and then even Asus support who told me to go to their website and fill in an RMA form. This unit is 13 months old-out of warranty. There is nothing on the form relevant to the nexus to fill in so you cannot continue with it. So I am stuck right now and do not know what to do if anything. Any help would be appreciated.
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Click to collapse
Normally, 3 things can go wrong:
1. The cable is not connected properly. This could be caused by any impact. You take off the back cover and reseat it. It's the amber cable that runs the length of the battery. Be sure to check both ends. The one on the motherboard's end is in plain sight. The other end is hidden beneath the daughter board at the bottom of the tab, so you need to remove it to inspect the connection.
2. The backlight which illuminates the display went out. You can check this by turning the tab on and taking the tab to a dark room and shine a flashlight on the screen. If you can see the icons or the boot page, the back light is bad. The bad news is that you'd have to remove the lcd/touchscreen unit to replace the backlight. 10 times out of 10, when you do this on an original tab, you will break the touchscreen. Since it's glued to the lcd with LOCA (liquid optically clear adhesive), you will have to separate them, fix the backlight, buy a new touchscreen, then reassemble the whole thing. Most people would find it simpler to just buy a new lcd/touchscreen combo. If you're game though, I can give you an lcd back with a working backlight strip.
3. The video circuit on the motherboard went belly up. To test this, you need a micro usb to HDMI adapter like the one here , and a newer lcd TV. If nothing shows on your TV, the GPU is probably dead, in which case the only practical solution is to replace the motherboard since it's impossible to replace the GPU at home.
Good luck.
graphdarnell said:
Normally, 3 things can go wrong:
1. The cable is not connected properly. This could be caused by any impact. You take off the back cover and reseat it. It's the amber cable that runs the length of the battery. Be sure to check both ends. The one on the motherboard's end is in plain sight. The other end is hidden beneath the daughter board at the bottom of the tab, so you need to remove it to inspect the connection.
2. The backlight which illuminates the display went out. You can check this by turning the tab on and taking the tab to a dark room and shine a flashlight on the screen. If you can see the icons or the boot page, the back light is bad. The bad news is that you'd have to remove the lcd/touchscreen unit to replace the backlight. 10 times out of 10, when you do this on an original tab, you will break the touchscreen. Since it's glued to the lcd with LOCA (liquid optically clear adhesive), you will have to separate them, fix the backlight, buy a new touchscreen, then reassemble the whole thing. Most people would find it simpler to just buy a new lcd/touchscreen combo. If you're game though, I can give you an lcd back with a working backlight strip.
3. The video circuit on the motherboard went belly up. To test this, you need a micro usb to HDMI adapter like the one here , and a newer lcd TV. If nothing shows on your TV, the GPU is probably dead, in which case the only practical solution is to replace the motherboard since it's impossible to replace the GPU at home.
Good luck.
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Click to collapse
Did anyone else read this response and want to hit the edit button, and then type in huge letters "Time to buy a new Nexus!"
Thank you for your detailed reply. I checked the cable from the MB at both ends. Seems OK on the connections. I am unable to turn on the tab to check the backlight. That's about as far as I can go with it at this point. I am thinking that this tab is toast and to make matters worse, the abominably bad Asus customer service. I am considering replacing this with a Samsung and be done with it.
claypoole said:
Thank you for your detailed reply. I checked the cable from the MB at both ends. Seems OK on the connections. I am unable to turn on the tab to check the backlight. That's about as far as I can go with it at this point. I am thinking that this tab is toast and to make matters worse, the abominably bad Asus customer service. I am considering replacing this with a Samsung and be done with it.
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Click to collapse
Hey, don't lose hope! Samsung is not any better specs or quality-wise (especially the display). If you're gonna butcher the thing anyway, might as well find out. I was gonna suggest to lend you a used lcd for you to test, but I realize people for some reason are extremely wary of gratuitous offers so I won't. But if you value it, try to get a screen with a good lcd but broken digitizer on Ebay. They wouldn't cost more than 15 bucks. Once you can determine it's not the motherboard, we can go from there. I can guide you on the replacement part if you want. I'm just a hobbyist, but I have messed around with this thing enough to tell.
Graph, you are kind to offer. I also have noticed that the glass has a few cracks in it as well. At this point, I can't turn it on. It seems like when I punch the on button in there is extremely little movement if at all. So I don't know if it is still on which I don't this it is or it shut itself off. When it was black screen and on, I was getting my email notifications audibly but since yesterday-none. I am not looking to spend big bucks on these things as essentially all I do mostly is use for reading. I do want to stick with android if I replace this. I know samsung does not have as good resolution but seems to get good reviews from users.

Screen troubles after a tumble

The screen didn't break but after it fell it did look like the bottom left hand corner was visible darker than the rest of the screen. Today, almost a week after the initial tumble I decide to see if restarting it would fix the problem and it did but it lead to bigger problems. Now if the screen turns off for any reason it stays off until I do a hard reset by holding the power button for 10 seconds. When I try and turn it back on the captive buttons light up but nothing else happens. When the screen is on after a hard reset I'm unable to adjust the brightness level when I pull down the top.
How likely is it that the LCD ribbon came loose? It seemed like there were issues with it before.
I'm at a complete loss for what could be wrong with it. Any advice for recommendations would be greatly appreciated.
I'm really hoping I don't need any major repairs or even a new tablet because I can't afford much of anything.
My grandson recently had a tantrum and threw down my tablet. Afterwards the screen was flickering so I decided to restart it to see if that would fix it. The screen never came back on although I could hear it start up sounds and the capacitive buttons would light up. To make the story short, i contacted Samsung and they said it would be a standard $200 repair fee unless they found a loose cable. Today my credit card was charged $59 dollars by Samsung. I guess it was just the loose cable. Note that they sent me a prepaid UPS label to send it back to them and they are shipping it back to me all within that $59 charge. Well worth it for a great tablet.
Sent from my SM-T800 using Tapatalk
You got to remove the back and disconnect the lcd and battery cables and reconnect them after 10 seconds and all should be good. This happened to me after I got the screen of death. I dropped it and the screen did it again. So I just disconnected them both, reconnected, and everything works fine.
bh87771 said:
You got to remove the back and disconnect the lcd and battery cables and reconnect them after 10 seconds and all should be good. This happened to me after I got the screen of death. I dropped it and the screen did it again. So I just disconnected them both, reconnected, and everything works fine.
Click to expand...
Click to collapse
Can you recommend any guides & kits that I can purchase from amazon to help me take the tablet a part?
YouTube it. It is real easy removing the back, patience is needed.
Yes go to youtube for the disassembly videos. I bought a generic repair kit from ifixit for the tools. Though guitar picks can also work well.
Basically when you drop it a cable gets loose. You just have to disconnect and reconnect it.
Mine was very clearly only half connected (not in the picture which is from when I replaced the battery). I also disconnected and reconnected the battery and lcd connectors to make sure. But the loose cable was on the top left and didn't seem to be one of those. Just reseat them all to be sure.
There is another thread on here about disassembly which has pictures that I used as reference.
I've had mine apart twice. Once when I dropped it and once when I replaced the battery for poor battery performance (this really was sooo worth it).
I just received a used Note today and was about to initiate a return because the screen was completely dark but the rest of the tablet seemed to be working, including touch. Removed the back, reseated the ribbon cable, and everything's good now.
Strange start to my experience with this tablet.

ZenFone 2 stuck in Asus Cover Mode with no haptic feedback after dropping on floor

I'm adding this thread to document my recent findings, in hopes that it may help others recover from similar issues.
I dropped my ZenFone 2 (ZE551ML) on the kitchen floor the other day. When I picked it up, it was stuck in Asus Cover Mode, even though I don't have an Asus Cover. I was unable to get into the phone, so I forced a hard-reboot. After playing with it for a few minutes, I was able to get the home screen, though Cover Mode would intermittently kick on and off every few seconds. I got into the settings and disabled Cover Mode, but I soon realized that I had lost vibrate and haptic feedback functionality.
I took apart the phone to inspect for internal damage, and I noticed a small hairline crack on the flex cable connector that resides on the charger port board (see attached photo for details). The now-broken connector allowed the flex cable to shift laterally from its original position, leading to connectivity issues and causing the problems noted above. I was able to temporarily fix it by disconnecting the flex cable and reconnecting it to its intended position. As a permanent fix, I ordered a new charger port board from a vendor on AliExpress that ran me about $5 USD. I just installed it yesterday, and it seems to work as well as the original.
ospatch said:
I'm adding this thread to document my recent findings, in hopes that it may help others recover from similar issues.
I dropped my ZenFone 2 (ZE551ML) on the kitchen floor the other day. When I picked it up, it was stuck in Asus Cover Mode, even though I don't have an Asus Cover. I was unable to get into the phone, so I forced a hard-reboot. After playing with it for a few minutes, I was able to get the home screen, though Cover Mode would intermittently kick on and off every few seconds. I got into the settings and disabled Cover Mode, but I soon realized that I had lost vibrate and haptic feedback functionality.
I took apart the phone to inspect for internal damage, and I noticed a small hairline crack on the flex cable connector that resides on the charger port board (see attached photo for details). The now-broken connector allowed the flex cable to shift laterally from its original position, leading to connectivity issues and causing the problems noted above. I was able to temporarily fix it by disconnecting the flex cable and reconnecting it to its intended position. As a permanent fix, I ordered a new charger port board from a vendor on AliExpress that ran me about $5 USD. I just installed it yesterday, and it seems to work as well as the original.
Click to expand...
Click to collapse
May I know how you played with your phone to go to the homescreen? I had the same situation but mine is vibrating. I'm just stucked on cover mode.
I hit it against me hands a few times. It seemed to be enough to allow intermittent access to the home screen and settings.
If your device is still under warranty, my recommendation for you is to let Asus repair it. I purchased my ZenFone with a broken screen and repaired it, so I have no warranty coverage. That said, I'd be willing to bet that you can't fix this without taking the phone apart. If I were you, I'd open up the phone, disconnect the battery from the motherboard and the flex cable, antenna, and vibrator from the charge port board, and inspect for damage. If everything looks good, reconnect everything, reassemble it, and try it out.
ospatch said:
I'm adding this thread to document my recent findings, in hopes that it may help others recover from similar issues.
I dropped my ZenFone 2 (ZE551ML) on the kitchen floor the other day. When I picked it up, it was stuck in Asus Cover Mode, even though I don't have an Asus Cover. I was unable to get into the phone, so I forced a hard-reboot. After playing with it for a few minutes, I was able to get the home screen, though Cover Mode would intermittently kick on and off every few seconds. I got into the settings and disabled Cover Mode, but I soon realized that I had lost vibrate and haptic feedback functionality.
I took apart the phone to inspect for internal damage, and I noticed a small hairline crack on the flex cable connector that resides on the charger port board (see attached photo for details). The now-broken connector allowed the flex cable to shift laterally from its original position, leading to connectivity issues and causing the problems noted above. I was able to temporarily fix it by disconnecting the flex cable and reconnecting it to its intended position. As a permanent fix, I ordered a new charger port board from a vendor on AliExpress that ran me about $5 USD. I just installed it yesterday, and it seems to work as well as the original.
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Click to collapse
i had the same problem, did what you did and got the same result!
thanks for sharing info!
ben.anter said:
i had the same problem, did what you did and got the same result!
thanks for sharing info!
Click to expand...
Click to collapse
Glad I could help!
I got the same problem this morning. Tried the strong magnet mtd recommended in the asus forum but it didn't help. In the end, I found that by removing the cover, and then using your finger to flick on the magnet sensor (near the back button, bottom left of screen) works! After exiting the cover mode, quickly go to settings to disable it.
Thanks a lot
I had a similar problem , but my connector have gotten wet, and wasn't broken. When i cleaned it, the mobile got out from cover mode

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