[Q] Nexus Won't Charge - Already Replaced Flex - Samsung Galaxy Nexus

A few days the phone stopped being able to charge while on/off from both wall/USB. Suspected it was due to the flex. Ordered one off of Ebay and when it came it looked identical to the one in the phone. Phone is about 14 months old so no more warranty (got it at IO 2012)
I did the standard instructions of removing the 6 screws with the battery and SIM card. Prying off the back cover, removing the screw for the bottom module along with the ribbon.
Disconnect the antenna, screen ribbon cable and the ribbon cable to the flex from mainboard. Replaced the flex underneath the vibration module and closed it all back up making sure to connect the 2 ribbon cables, the antenna and the cable from the bottom module to the flex but it still won't charge.
I can get it to be recognized in computer as a MTP/PTP device but it still won't charge from computer or wall while on or off. Is there anything else I can do or is this gone forever. Tried a factory reset as well but still won't charge, it was originally just running stock 4.3. Thanks.
EDIT: Battery under Settings says charging at the bottom but not at the top...
http://i.imgur.com/39XYzep.png

opiuman said:
A few days the phone stopped being able to charge while on/off from both wall/USB. Suspected it was due to the flex. Ordered one off of Ebay and when it came it looked identical to the one in the phone. Phone is about 14 months old so no more warranty (got it at IO 2012)
I did the standard instructions of removing the 6 screws with the battery and SIM card. Prying off the back cover, removing the screw for the bottom module along with the ribbon.
Disconnect the antenna, screen ribbon cable and the ribbon cable to the flex from mainboard. Replaced the flex underneath the vibration module and closed it all back up making sure to connect the 2 ribbon cables, the antenna and the cable from the bottom module to the flex but it still won't charge.
I can get it to be recognized in computer as a MTP/PTP device but it still won't charge from computer or wall while on or off. Is there anything else I can do or is this gone forever. Tried a factory reset as well but still won't charge, it was originally just running stock 4.3. Thanks.
EDIT: Battery under Settings says charging at the bottom but not at the top...
http://i.imgur.com/39XYzep.png
Click to expand...
Click to collapse
Get yourself a wall charger and 2 batteries. Rotate them.
For files you can use bluetooth, NFC, drop box, drive, copy , flicker, box, etc...
Edit: never mind. It connects just doesn't charge.

leyvatron said:
Get yourself a wall charger and 2 batteries. Rotate them.
For files you can use bluetooth, NFC, drop box, drive, copy , flicker, box, etc...
Edit: never mind. It connects just doesn't charge.
Click to expand...
Click to collapse
Yea to clarify before I changed the flex, the phone couldnt connect be recognized by computer on USB. Now I have at least that but nothing else.

I have the same problem but my nexus is already in warranty, so I try to resolve this problem with samsung!

my problema is backwards
After replaced the USB flat i can charge the phone, but the computer not recognizing

I have the exact same problem. Replaced flex cable, still no charge. My pc recognized it with the old and new charge port as well. I had to re-activate my OG Droid until either the new HTC and G5 phones come out...sigh

long shot, but clean-up gold phone contact points for better conductivity?

Same Here
I think it happened after flashing 4.4.2 roms, i tried to flash different roms different cables, wall,pc,ps..nothing worked if it is on.When i turn off the gnex it is charging..Anyone?

I think i have solved mine
Well it was getting really weird like discharging while it is connected(turned off). So i thought it is not related to rom. So i wiped dalvik cache and now it looks ok

Any news on this topic? I've got the same problem, swapped the USB flex cable and it still isn't charging. I can connect via ADB though and in the battery details menu it says "charging" at the bottom, although it obviously isn't.

Related

Anyone ever replace the battery connector (not usb port)?

So it would appear that the battery connect that the battery actually touches, not the usb port, is damaged and charges my phone extremely slow because of the bad contact. I've tried adjusting the spring type prongs on it to no avail. Have any of you guys ever replaced one of these or know someone who has? It is similar to replacing the connectors on the older iPhones? I just bought a Note 5 and am keeping this phone as a backup, so I need to have it working properly, I don't want to have to buy an external charger.
What I noticed is that the phone charges like a snail if turned off, and even if plugged in, it will only discharge when turned on. I guess it could be the flex port, but I just replaced the screen (came with glass, digitizer, midframe, flex port, etc. basically everything but the motherboard.)
Thanks guys,
Jeff

G4 Charge/USB port issues

I've had my G4 since almost launch day and within weeks the supplied USB cable stopped charging the phone. I thought it was a cable problem, but it worked fine with other devices.
I tried other cables with the G4 and these still charged it so I thought nothing more of it until charging degraded with every USB cable I own to where the phone would only charge 20-30% during an overnight charge and the phone would frequently not recognise it was plugged in at all. I contacted LG who did a repair under warranty and all was fine.
I've now had the repaired phone back for about 3 weeks and the same problems are starting up again and it's only a matter of time until I am forced to return again for a repair.
Is anyone else having similar problems? I thought I may have just had an unlucky manufacturing problem, and the LG reps confirmed that to repair my phone they basically replace all the internal circuit boards and components rather than just replacing the individual component that is faulty (in this case the USB/charging port)
Basic debugging includes asking stupid questions, so please forgive but still answer any of those
Are you using a different charger? If so, check if that one is within specifications and if you do send in for repair again, use a different charger.
Are you propping up the device at an odd/weird angle or in a dock of some sort with the cable attached?
(As they replaced the entire print, it's probably not this, just the USB-micro port bent or broken.)
You could double check the wall outlets being used, there might be some kind of electrical problem there.
Either using all kinds of fancy electical testing gadgets, or stick a USB light into the hub or charger, does it flicker?
When sending it back for repairs, did they check the stock charger as well?
Hopefully these questions help you find any logical or plausible cause.
FreezyExp said:
Basic debugging includes asking stupid questions, so please forgive but still answer any of those
Are you using a different charger? If so, check if that one is within specifications and if you do send in for repair again, use a different charger.
Are you propping up the device at an odd/weird angle or in a dock of some sort with the cable attached?
(As they replaced the entire print, it's probably not this, just the USB-micro port bent or broken.)
You could double check the wall outlets being used, there might be some kind of electrical problem there.
Either using all kinds of fancy electical testing gadgets, or stick a USB light into the hub or charger, does it flicker?
When sending it back for repairs, did they check the stock charger as well?
Hopefully these questions help you find any logical or plausible cause.
Click to expand...
Click to collapse
Hi FreezyExp,
1. I am using the standard charger that came with the phone, but this has not been repaired/replaced. I have tried other chargers too, but all the same issue.
2. No weird propping up or anything like that. If I hold my phone while it is plugged in it is constantly vibrating as the charger connects and disconnects, and if I place it on the desk to charge I have to ensure that I have at least 3-4" of cabe "on the desk" to give it enough support to make the connection.
3. Wall connection is fine and I have tried it with a range of outlets around the home, both with extension sockets used and plugged directly into the wall and there is no different. No flickering light when using a USB light either.
4. When I sent it back all they asked me to return was the main section of the handset - so no battery or rear cover, no cables or chargers etc
It does seem to be the same issue as last time, a USB connection becoming loose from the main motherboard, but it seems weird that I have had the same issue twice in the space of 4-5 months.
I've been having some sort of problem with my G4 usb port. If I plug it in to a computer, it will lose connection and get a connection again if I barely touch the end of the cord at the phone end. I've tried many different cords and different usb ports on my computer, but it still has problems.
I can't fast charge, either. When I plug it in to fast charge, it actually starts discharging even faster. I've had some extreme battery life problems, too. It drained from 100-36 the other night with everything disabled, and it's been doing that kind of thing a lot lately. I'm guessing that the charging port is what's messing up my battery life because it won't charge correctly.
Never dropped it or anything.
I got my G4 on January 24 and my USB port has also failed. I am getting a replacement from Verizon, but am concerned that a six month old phone has this issue.
I also own a G4 H815. A while ago the phone started not receiving any charge from the cable and I would have to prop it up from right under the cable's micro usb end. Thought it was because it was bent inside the port and not making connection with the cable so I had the port replaced. Now I'm experiencing the same problem and I think it might be the cable that's already gone kaput and is effing up the port itself. I took the phone to the same place to get the port replaced again and bought new cables (I lost both the original adapter and the cable, which were charging slow anyway. Now using a 2A Asus adapter which works great) and when I asked the guy at the repair shop, he says it's a chronic issue with G4 devices. I don't really understand how it would happen twice in just a few months even with a new charger port. What should I make of this? Did they replace my port with an already faulty one, cahrged me full price and now trying to sell this bogus or am I really doomed with this phone?

Is my Pixel 2 XL charging port damaged?

I noticed that my Pixel 2 XL suddenly stopped connecting to the car via the USB cable (Android Auto). When I connect the cable, the phone charges but nothing happens on the monitor. When I try the same cable with my OG Pixel XL it works fine. I also tried connecting my Pixel 2 XL to my PC, and it didn't work either. Windows makes a sound, and then I get an error message saying "USB device not recognized. the last usb device you connected to this computer malfunctioned." Nothing shows up on the phone screen and I can't change the USB-connection type. I tried factory resetting the phone but I still have the same issue. I have tried many different cables, and all work with the OG Pixel XL but not the Pixel 2 XL.
Also the time estimate for how long a full charge will take is gone as well. It only says "charges rapidly" when I connect it to the charger that came with the phone.
Is my charging port damaged? Can I fix it somehow? I tried carefully cleaning it with water and a tooth brush and drying it, but still have the same issue. Could it be corrosion? Should I try using PRF TCC on the charge port?
YaKoStar said:
I noticed that my Pixel 2 XL suddenly stopped connecting to the car via the USB cable (Android Auto). When I connect the cable, the phone charges but nothing happens on the monitor. When I try the same cable with my OG Pixel XL it works fine. I also tried connecting my Pixel 2 XL to my PC, and it didn't work either. Windows makes a sound, and then I get an error message saying "USB device not recognized. the last usb device you connected to this computer malfunctioned." Nothing shows up on the phone screen and I can't change the USB-connection type. I tried factory resetting the phone but I still have the same issue. I have tried many different cables, and all work with the OG Pixel XL but not the Pixel 2 XL.
Also the time estimate for how long a full charge will take is gone as well. It only says "charges rapidly" when I connect it to the charger that came with the phone.
Is my charging port damaged? Can I fix it somehow? I tried carefully cleaning it with water and a tooth brush and drying it, but still have the same issue. Could it be corrosion? Should I try using PRF TCC on the charge port?
Click to expand...
Click to collapse
Cable could be going bad or it's missing the 100ohm resister the phone just went into protection it will work again at some point but I recommend getting a new cable direct from Google
Tired of buying ones that should have the resister but still not having quick charge work and issues like that.
Sent from my Pixel 2 XL using Tapatalk
YaKoStar said:
I noticed that my Pixel 2 XL suddenly stopped connecting to the car via the USB cable (Android Auto). When I connect the cable, the phone charges but nothing happens on the monitor. When I try the same cable with my OG Pixel XL it works fine. I also tried connecting my Pixel 2 XL to my PC, and it didn't work either. Windows makes a sound, and then I get an error message saying "USB device not recognized. the last usb device you connected to this computer malfunctioned." Nothing shows up on the phone screen and I can't change the USB-connection type. I tried factory resetting the phone but I still have the same issue. I have tried many different cables, and all work with the OG Pixel XL but not the Pixel 2 XL.
Also the time estimate for how long a full charge will take is gone as well. It only says "charges rapidly" when I connect it to the charger that came with the phone.
Is my charging port damaged? Can I fix it somehow? I tried carefully cleaning it with water and a tooth brush and drying it, but still have the same issue. Could it be corrosion? Should I try using PRF TCC on the charge port?
Click to expand...
Click to collapse
Check for these options, see if it got changed to charging only.
Unfortunately, I don't have these options available. Like I said, nothing happens. The phone only goes into charging mode. I've tried a bunch of different cables that works with my OG Pixel.
in developer options check to see if under "select USB configuration" you have it set to charging only.
I have also started to notice a weird charging issue with my Pixel 2 XL. First, I thought that it was the original cable - ordered a replacement via Google Support but today I started noticing a very similar issue. Basically, only 1 way of the reversible cable can charge my device, so if I turn it upside down it won't charge at all - no matter which of the sides I plug into it. When it's plugged in normally, it'll charge for a few seconds then off and on again - all of this at a very fast speed, so it'll keep my screen on at all times. I've noticed this as I've left my phone on the bed for half an hour to charge it then spot that my screen was on for like 5 minutes - when I picked up the phone, it was pretty warm and would charge and disconnect and then charge again - in a loop.
Meanwhile, if I plug in my Anker (a third party) USB-C cable, it will charge just fine - no matter which of the reversible sides I try it with. So having checked that, I thought it was the wall plug going crazy or something, so I plugged the USB-C cable into my computer (Thunderbolt 3) and it was the same issue - it would charge normally only with one of the sides, so when I turned it upside down, nothing would happen.
Also, what's weird is that the Pixel cable, both the old and the replacement one works fine with the Galaxy S9, but not my Pixel - so I assume it's a hardware (charging port) issue with my device, so tomorrow the UK team should get in touch with me to discuss my options :/
skimminstones said:
in developer options check to see if under "select USB configuration" you have it set to charging only.
Click to expand...
Click to collapse
Tried doing it. No change.
I tried using some contact spray to see if it's because of rust/oxidation of the pins in the charging port, no change.
I still think it's an hardware issue though. Like I said, not even factory resetting the phone fixed it. I'll just live with not having android auto and USB, not super important for me anyway. Thanks guys.
I wonder if there is a defect in the charging ports of these. I just got a replacement because mine wouldn't charge on any c to c charger (I have two factory chargers). It would only charge when connected to a computer with an A to C, or using the same cable type to a wall charger. It was really weird... This is also the second or third post in the last week or two I've seen about something pertaining to the port.
gettinwicked said:
I wonder if there is a defect in the charging ports of these. I just got a replacement because mine wouldn't charge on any c to c charger (I have two factory chargers). It would only charge when connected to a computer with an A to C, or using the same cable type to a wall charger. It was really weird... This is also the second or third post in the last week or two I've seen about something pertaining to the port.
Click to expand...
Click to collapse
There probably is .. I've read a lot of posts about people having similar issues.
Ok... So something weird just happened. I connected my phone to the charger as usual, and suddenly I could see the "estimated time until full charge" notification again, for the first time in weeks! I tried disconnecting it, and connecting it to my computer and I could browse the images on my phone! I thought my issue was fixed, so I disconnected it and connected it to the outlet again.. And now it is the same as before again. No estimate until full charge and windows says the device malfunctioned... What the hell happened there for a couple of minutes?
Pixel 2 XL and having the identcal issue as OP.
Phone charges only in car and computer. Once for just a few minutes the Android Auto just starter working and on PC I was briefly able to access phone storage. Then nothing. Went to dealer thinking it was car USB port but the technicians Samsung plugged in and Android Auto started right up.
Swapped cables, same isssue.
Wondering if I should even bother with factory reset or just pursue repair?
My Pixel 2 XL is from Verizon, anyone have any experience with warranty repairs?
(btw, checked in the developer sections and usb is set to MTP)
YaKoStar said:
I noticed that my Pixel 2 XL suddenly stopped connecting to the car via the USB cable (Android Auto). When I connect the cable, the phone charges but nothing happens on the monitor. When I try the same cable with my OG Pixel XL it works fine. I also tried connecting my Pixel 2 XL to my PC, and it didn't work either. Windows makes a sound, and then I get an error message saying "USB device not recognized. the last usb device you connected to this computer malfunctioned." Nothing shows up on the phone screen and I can't change the USB-connection type. I tried factory resetting the phone but I still have the same issue. I have tried many different cables, and all work with the OG Pixel XL but not the Pixel 2 XL.
Also the time estimate for how long a full charge will take is gone as well. It only says "charges rapidly" when I connect it to the charger that came with the phone.
Is my charging port damaged? Can I fix it somehow? I tried carefully cleaning it with water and a tooth brush and drying it, but still have the same issue. Could it be corrosion? Should I try using PRF TCC on the charge port?
Click to expand...
Click to collapse
Same exact problem here with XL2. The phone will charge anywhere with any cable but can not access phone storage from laptop and Android Auto no longer works. It worked fine last week, now no go. I called Google as I bought phone from them and they are are sending a replacement to me which will be here this Monday.
Has to be hardware issue as my XL works perfectly.
Hey i have the exact same problem. Cannot access the phone with usb cable. The problem for me is, that i have Lineage OS installed without root and it installed its own recovery, so i'm basically unable to go back to stock. The google support told me that because it's not the original software on the phone its out of warranty and i should just reflash the factory image, but i already told them that as long as i can't access the phone with usb i can't do that. Will see what i can do else. Maybe i just have to pay to get it fixed. I'm very sad about that.
Also same here. I contacted support and signs indicate that this is a warranty issue.
No USB data for me anymore. Charging only. The interesting thing is although the USB-C is symmetrical only one of the two possible orientations is actually charging the phone.
Same problem just happened with my pixel 2 XL. I believe this was some kind of a weird update that Google did last night that screwed everything up. I've tried hard factory reset as well as resetting the phone changing cables Etc. Nothing works
I was one of those people that cursed out Google regarding this particular issue. I was getting windows 10 errors "device not recognized", the USB-C audio adapter didn't work for my car, not did the audio adapter, so I was gonna chalk it up to the fact I got a faulty phone, that was until....
I had searched around and saw some articles on how the USB-C port was a dust collector. I used s toothpick to knock out some of the lint that was trapped inside the port, nothing changed.
Just about to RMA my phone and I decide to try one last attempt.
1) find the thinnest cardboard / oaktag you can find that can fit in either side of the port without having use force ( if you have an old Google fi data sim card cardboard laying around, it works perfect )
2) Get some rubbing alcohol and dip about 2 to 3 cm of it in the alcohol
3) Gently move the cardboard against the connectors in a left right motion, too and bottom side, when you hit the corners drag the cardboard up to remove any additional dust or lint. I ended up extracting more lint and dirt that rolled off both sides of the connectors
I let the USB-C connector dry and cleaned again in the same method.
Now when I plug in my device it's recognized by my PC, all USB-C peripherals work, even my SanDisk USB-C flash drive.
Before you quit after all your efforts, give cleaning the port a shot. You can't really do any damage because the phone is moisture resistant , and alcohol evaporates quick.
It's very easy for dirt to get lodged in the port, and when you plug in your phone to charge, it's just going to compress and smear the dirt all over the connectors ( possibly fuse the dirt on the contacts ). This happens with all USB-C ports in similar situations.
If you guys are still reading this , give it a shot if you haven't returned your units.
ugh .... just happened to mine. While the bootloader is unlocked. hopefully i can clean or replace the port.
Anony58 said:
I have also started to notice a weird charging issue with my Pixel 2 XL. First, I thought that it was the original cable - ordered a replacement via Google Support but today I started noticing a very similar issue. Basically, only 1 way of the reversible cable can charge my device, so if I turn it upside down it won't charge at all - no matter which of the sides I plug into it. When it's plugged in normally, it'll charge for a few seconds then off and on again - all of this at a very fast speed, so it'll keep my screen on at all times. I've noticed this as I've left my phone on the bed for half an hour to charge it then spot that my screen was on for like 5 minutes - when I picked up the phone, it was pretty warm and would charge and disconnect and then charge again - in a loop.
Meanwhile, if I plug in my Anker (a third party) USB-C cable, it will charge just fine - no matter which of the reversible sides I try it with. So having checked that, I thought it was the wall plug going crazy or something, so I plugged the USB-C cable into my computer (Thunderbolt 3) and it was the same issue - it would charge normally only with one of the sides, so when I turned it upside down, nothing would happen.
Also, what's weird is that the Pixel cable, both the old and the replacement one works fine with the Galaxy S9, but not my Pixel - so I assume it's a hardware (charging port) issue with my device, so tomorrow the UK team should get in touch with me to discuss my options :/
Click to expand...
Click to collapse
I had this exact same problem. I had never heard of anyone else having the issue. Both the original charger that came with the phone and a replacement from Google had the issue but the chargers I got with Nexus 5X phones worked fine.
During the same time period I also had issues with the phone only detecting the 3.5mm adapter one way or not at all. Others had reported this issue.
At some point recently, as randomly as it seemed to stop working (charger and 3.5mm adapter) both started working again.
jimv1983 said:
I had this exact same problem. I had never heard of anyone else having the issue. Both the original charger that came with the phone and a replacement from Google had the issue but the chargers I got with Nexus 5X phones worked fine.
During the same time period I also had issues with the phone only detecting the 3.5mm adapter one way or not at all. Others had reported this issue.
At some point recently, as randomly as it seemed to stop working (charger and 3.5mm adapter) both started working again.
Click to expand...
Click to collapse
Indeed, recently it has started working again, although I am still waiting for an original response from Google (been waiting for half a year and really doubt they'd come to a conclusion after all....)
I had contacted them and they still told me to wait... Really disappointed about the way this serious issue was handled and it is still being handled.
Anyways, everything seems to be working out of blue, that's what matters.
Anony58 said:
Indeed, recently it has started working again, although I am still waiting for an original response from Google (been waiting for half a year and really doubt they'd come to a conclusion after all....)
I had contacted them and they still told me to wait... Really disappointed about the way this serious issue was handled and it is still being handled.
Anyways, everything seems to be working out of blue, that's what matters.
Click to expand...
Click to collapse
The best guess I have is that the issue was caused by some bug in an update (the April or May update if my timeline is correct) and was fixed in the November Update.
Now I have a new issue that stated with the Pie update. Music metadata no longer shows up on my car's audio system when playing over Bluetooth. Many people are experiencing the issue. There is a work around but it's annoying.

fast charging broken after a week

Hello there,
I got my Pixel 3a XL for a week now and since yesterday I'm not able to charge it with the original fast charger that came with it. With a different USB A To C cable it works, though very slow.
When I plug in the original charger one of the following happens:
- Nothing. I have to flip the cable like in the old USB days (wtf)
- It charges in a one second Interval. Meaning I hear the sound/vibration when it starts charging, but then it immediately stops charging, starts chargings, stops charging... and so on.
I already factory reset my phone, which didn't help. I tried a different charger from a galaxy phone. Same happens there. Only with a USB A to C cable which is plugged in a PC I am able to charge...
What could that be?
mason02 said:
Hello there,
I got my Pixel 3a XL for a week now and since yesterday I'm not able to charge it with the original fast charger that came with it. With a different USB A To C cable it works, though very slow.
When I plug in the original charger one of the following happens:
- Nothing. I have to flip the cable like in the old USB days (wtf)
- It charges in a one second Interval. Meaning I hear the sound/vibration when it starts charging, but then it immediately stops charging, starts chargings, stops charging... and so on.
I already factory reset my phone, which didn't help. I tried a different charger from a galaxy phone. Same happens there. Only with a USB A to C cable which is plugged in a PC I am able to charge...
What could that be?
Click to expand...
Click to collapse
First of all, is this a new, used, or factory refurbished phone? If it's new or refurbished with a warranty, get it replaced under warranty. If it was used and/or has no warranty, look at the port on the phone to see if it's dirty. Carefully clean it out with whatever will fit in the port without damaging it. Pay special attention to the bottom as debris tends to get compressed and eventually gets thick enough to keep the cable from going in far enough to make a good, secure contact.
marvelljones said:
First of all, is this a new, used, or factory refurbished phone? If it's new or refurbished with a warranty, get it replaced under warranty. If it was used and/or has no warranty, look at the port on the phone to see if it's dirty. Carefully clean it out with whatever will fit in the port without damaging it. Pay special attention to the bottom as debris tends to get compressed and eventually gets thick enough to keep the cable from going in far enough to make a good, secure contact.
Click to expand...
Click to collapse
It's brand new. I did just clean it (but nothing came out or was visible) and now charging works again...
That's weird. It was clean as a whistle and I just thought "just clean it even though it looks clean"... weird!
But thanks anyway
Do you know anyone who has a QC 3.0 adapter and cable USB 3 end? Try it on a different charger... If it fails on multiple chargers/cables, then you device is likely defective and you will need to get it repaired/replaced.
Sorry, no quick fix here...

Nexus 7 (2013) when connected to the computer (Linux Mint 20.1 or Windows 7) will charge but is not recognized by the PC

Hi,
I recently purchased a refurbished Nexus 7 (2013). It’s running Android version 6.0.1, the Developer options is activated, and USB Debugging is turned on.
It has worked perfectly since it was purchased last December until a few days ago. Now when I connect it to the computer the battery icon shows it is charging, but the usual USB options on the notification bar don’t appear. It’s not a defective USB cable as the same cable on the phone, a Nexus 5, shows the USB options for file transfer.
To rule out the possibility of app conflicts I did a factory reset using the power and volume buttons. Still no joy. I came here to ask if there is anything else I can do ... or is it a matter of replacing the USB port daughterboard?
Thanks ...
I have a Nexus 7 Deb 2013 with a similar problem. I have traced the problem down to the internal connector on the motherboard where the ribbon cable coming from the daughter board connects to the motherboard. Only if I apply pressure on this connector, does my PC recognize the Nexus 7. The back cover is designed to apply some pressure on this connector, so I may try adding some cardboard between the back cover and the connector to see if the increased pressure on the connector solves my problem. You quite possibly have the same problem.
Please let me know how the cardboard fix works. Size, thickness, and placement. Cardboard I've got. Fresh out of Nexus 7 specific daughterboards. Will heat be a factor?
The workarounds so far are to transfer data to and from the server via WiFi and if/when the charger side of the USB port dies I was going to pick up a wireless charging pad. But cardboard sounds way cooler.
The point is this is a great tablet that I'd like to use for a Very Long Time.
neilth said:
I have a Nexus 7 Deb 2013 with a similar problem. I have traced the problem down to the internal connector on the motherboard where the ribbon cable coming from the daughter board connects to the motherboard. Only if I apply pressure on this connector, does my PC recognize the Nexus 7. The back cover is designed to apply some pressure on this connector, so I may try adding some cardboard between the back cover and the connector to see if the increased pressure on the connector solves my problem. You quite possibly have the same problem.
Click to expand...
Click to collapse
bobalex69 said:
Please let me know how the cardboard fix works. Size, thickness, and placement. Cardboard I've got. Fresh out of Nexus 7 specific daughterboards. Will heat be a factor?
The workarounds so far are to transfer data to and from the server via WiFi and if/when the charger side of the USB port dies I was going to pick up a wireless charging pad. But cardboard sounds way cooler.
The point is this is a great tablet that I'd like to use for a Very Long Time.
Click to expand...
Click to collapse
I’m not that familiar with the flo version of N7, which are you having this problem with, deb or flo? On my Deb, there’s a wide ribbon cable for charging, SIM card and screen touch support and USB port data transfers. The flo version of this cable is narrower. If you remove the back cover from your tablet, there should be an insert on the inside of the cover which presses down on the motherboard’s ribbon cable connector. With the cover off and your computer connected to the USB port, press against this connector and see if pressing against the connector temporarily restores USB connectivity. If so, adding some cardboard between this connector and the back cover will increase the pressure applied by the back cover. Some experimentation will be required.
My problem started when I opened up my N7 to replace the battery. This required temporarily disconnecting the ribbon cable from the motherboard and when I got everything back together I had no touch input from the screen. I eventually discovered that pressure on the MB ribbon cable connector solved this problem and that this same cable carries the USB data too.
Good luck repairing your N7.
neilth said:
I’m not that familiar with the flo version of N7, which are you having this problem with, deb or flo? On my Deb, there’s a wide ribbon cable for charging, SIM card and screen touch support and USB port data transfers. The flo version of this cable is narrower. If you remove the back cover from your tablet, there should be an insert on the inside of the cover which presses down on the motherboard’s ribbon cable connector. With the cover off and your computer connected to the USB port, press against this connector and see if pressing against the connector temporarily restores USB connectivity. If so, adding some cardboard between this connector and the back cover will increase the pressure applied by the back cover. Some experimentation will be required.
My problem started when I opened up my N7 to replace the battery. This required temporarily disconnecting the ribbon cable from the motherboard and when I got everything back together I had no touch input from the screen. I eventually discovered that pressure on the MB ribbon cable connector solved this problem and that this same cable carries the USB data too.
Good luck repairing your N7.
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I've got the WiFi (flo) Nexus 7. I've also got the burglary tools to break and enter The Phone. Did you ever get touch input back?
It’s pretty funny, I had given up and I was going to put the tablet in the e-recycling bin in town here when I happened to accidentally press on just the right spot on the back of my N7 and I got a touch response. So I took out the ribbon cable and cleaned the conductors and the MB connector which fixed the touch issue, but I still have your problem with USB connectivity which gets temporarily resolved by again applying pressure to the MB ribbon connector. As I said previously, some thin layers of cardboard placed between the connector and the back cover may just solve both our problems.
neilth said:
It’s pretty funny, I had given up and I was going to put the tablet in the e-recycling bin in town here when I happened to accidentally press on just the right spot on the back of my N7 and I got a touch response. So I took out the ribbon cable and cleaned the conductors and the MB connector which fixed the touch issue, but I still have your problem with USB connectivity which gets temporarily resolved by again applying pressure to the MB ribbon connector. As I said previously, some thin layers of cardboard placed between the connector and the back cover may just solve both our problems.
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I think I might try using playing cards (one at a time) until I get the desired (functional) thickness.
Good luck and good night.

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