Hi all,
I recently damaged the micro usb socket on my Nexus 7 2013, which stopped it from charging. After some searching I found a replacement pcb (daughterboard / lower motherboard pcb) from Asus parts. I fitted the board and the tablet will now charge. Unfortunately the touchscreen is now completely unresponsive!
At first I thought I had damaged the digitizer or ribbon cable in the disassembly process, but to check I re-fitted the damaged board. The touchscreen worked again!
So I now wonder if there is some issue with swapping boards on the Nexus 7 2013. I checked the part number etc of both boards and they are identical. So I'm confused as to why this problem has occurred.
Does anyone know about this issue and how I can resolve it please? I have been very careful in swapping out the parts and cannot see any damage to any components.
Any help would be greatly appreciated!
[email protected] said:
Hi all,
I recently damaged the micro usb socket on my Nexus 7 2013, which stopped it from charging. After some searching I found a replacement pcb (daughterboard / lower motherboard pcb) from Asus parts. I fitted the board and the tablet will now charge. Unfortunately the touchscreen is now completely unresponsive!
At first I thought I had damaged the digitizer or ribbon cable in the disassembly process, but to check I re-fitted the damaged board. The touchscreen worked again!
So I now wonder if there is some issue with swapping boards on the Nexus 7 2013. I checked the part number etc of both boards and they are identical. So I'm confused as to why this problem has occurred.
Does anyone know about this issue and how I can resolve it please? I have been very careful in swapping out the parts and cannot see any damage to any components.
Any help would be greatly appreciated!
Click to expand...
Click to collapse
So does the screen work or not? You probably just had it temporarily not detected by the system. Had you tried holding the power button for a minute to force a reboot?? Probably would have worked.
Sent from my Nexus 7 using Tapatalk
dottat said:
So does the screen work or not? You probably just had it temporarily not detected by the system. Had you tried holding the power button for a minute to force a reboot?? Probably would have worked.
Sent from my Nexus 7 using Tapatalk
Click to expand...
Click to collapse
Thanks dottat, but that does not seem to cure the problem. It's a weird one. The screen is on and displaying as usual, just no response from digitizer. Do you think it is possible that the board is simply faulty? It seems unlikely seeing as it will allow the Nexus to charge, power on etc. Asus parts have agreed to send me another in the meantime so I will report back when it arrives.
Ok so the new board arrived today, fitted it with no issues but unfortunately the problem still persists. It is strange that the touchscreen works with the original board, there must be something I'm missing!
I know this isn't a solution to the current problem, but how about a wireless charger?
Sent from my Nexus 4 using xda app-developers app
plznote said:
I know this isn't a solution to the current problem, but how about a wireless charger?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
I took a risk last night and removed the damaged micro sd socket from the original board and replaced it with the good one from the new board. The tablet will charge now and the touchscreen is working, although it is very unpredictable, think I may have damaged the ribbon cable terminals on the board from too much swapping over.
I really need to get the new board working so I can make sure it is just the board at fault, so I know I haven't damaged the digitizer or its ribbon cable.
[email protected] said:
I took a risk last night and removed the damaged micro sd socket from the original board and replaced it with the good one from the new board. The tablet will charge now and the touchscreen is working, although it is very unpredictable, think I may have damaged the ribbon cable terminals on the board from too much swapping over.
I really need to get the new board working so I can make sure it is just the board at fault, so I know I haven't damaged the digitizer or its ribbon cable.
Click to expand...
Click to collapse
There are a few revisions of that daughterboard. On the board there is a stamp that identifies any revision. If it is the original it has no revision number stamp.
It sounds now as though you have damaged something other than the board such as the flex cable as you have suggested, but the incorrect revision model was the original cause of your digitizer issue. 99%.
Thanks.
Related
I previously bought a used prophet.
It was working fine when suddenly it randomly wouldn't take any touch command on the screen (when i click with stylus nothing happens)
I opened it trying to fix it, found out the flat cable between the board and the screen was previously damaged and soldered.
Now i ended up with a damaged flat cable and a damaged battery contacts part (the part that has the battery contacts on the board) which broke off.
Do you guys think I can find these parts? and is the flat cable a replaceable part or do i have to change the whole screen?
Any suggestion is most appreciated
Fuseless said:
I previously bought a used prophet.
It was working fine when suddenly it randomly wouldn't take any touch command on the screen (when i click with stylus nothing happens)
I opened it trying to fix it, found out the flat cable between the board and the screen was previously damaged and soldered.
Now i ended up with a damaged flat cable and a damaged battery contacts part (the part that has the battery contacts on the board) which broke off.
Do you guys think I can find these parts? and is the flat cable a replaceable part or do i have to change the whole screen?
Any suggestion is most appreciated
Click to expand...
Click to collapse
You can get the flat cable separately (no need to change the LCD if it is still working).
The battery contact on the PCB will be a problem. How handy are you with a soldering iron?
PM me for more details.
Hello,
Recently I changed the entire display to my note2 i7100 and works perfectly. The issue is the phone wont charge.. Replaced the battery. I ordered a usb charger flex and replaced it. And still nothing..
I tried with other chargers and nothing happens..
Can anyone help me to find the issue?
Thanks!
Probably not the fix you were looking for but certainly easier lol and less chance of causing more damage too
http://www.amazon.co.uk/dp/B006UF7SYK/ref=cm_sw_r_udp_awd_O6Qotb016D6YZ
lesone said:
Hello,
Recently I changed the entire display to my note2 i7100 and works perfectly. The issue is the phone wont charge.. Replaced the battery. I ordered a usb charger flex and replaced it. And still nothing..
I tried with other chargers and nothing happens..
Can anyone help me to find the issue?
Thanks!
Click to expand...
Click to collapse
My friend I guess that the charging base (this module that takes the current to the battery to charge it)
is damaged, so you might need to change it.
Hello thanks for the replies.
But I need to fix the phone. I don't want an external charger.
I would like to know what is causing this issue.
Bought a flex charger in ebay.
But nothing, it does not work..
Maybe is a motherboard damage?
Thanks!
lesone said:
Hello thanks for the replies.
But I need to fix the phone. I don't want an external charger.
I would like to know what is causing this issue.
Bought a flex charger in ebay.
But nothing, it does not work..
Maybe is a motherboard damage?
Thanks!
Click to expand...
Click to collapse
I am not talking about an external charger my friend,
Here is the thing, when you plug your charger to the phone, the port that you plug the wire in is
a part of a module connected to the battery, and that thing might be damaged.
My recomendation is to save yourself time and effort, and send it to a maintenance shop or store,
they will replace the base and probably won't cost you that much.
So I've had my tablet a year and a half.. Its lightly used. But lately my auto rotation will not work. I factory reset the device with WUGs but left it unlocked and still no dice!
I'm currently running stock 5.1.1 with the 4.05 bootloader.
Going to try flashing cleanrom and see if that changes anything for me. Suggestions anyone?
Sent from my Nexus 6 using XDA Free mobile app
It is probably not software or firmware. Instead, the ribbon cables between the main board and USB board are probably loose.
There is a thread discussing a minor hardware hack to fix it, but I struggle with copying links on my phone.
jshamlet said:
It is probably not software or firmware. Instead, the ribbon cables between the main board and USB board are probably loose.
Click to expand...
Click to collapse
Not even a "hack" per se...just re-seat the ribbon cable in the connector. It is a bit "fiddly", but not bad if you have ever done something similar on any other ribbon cable/connector.
Somehow I broke the white connector tab that attaches the digitizer to the left side of the motherboard. I've opened it 200 times before but this time the tab came loose from the motherboard completely. Does anyone have any experience with this issue.? Also the antenna port in the upper part of the motherboard just pulled off when i pulled up the connector so now that is completely unsoldered from the board. im starting to think this phone is done. any body have any recommendations? its basically just unsoldered connections..
Calico_NC said:
Somehow I broke the white connector tab that attaches the digitizer to the left side of the motherboard. I've opened it 200 times before but this time the tab came loose from the motherboard completely. Does anyone have any experience with this issue.? Also the antenna port in the upper part of the motherboard just pulled off when i pulled up the connector so now that is completely unsoldered from the board. im starting to think this phone is done. any body have any recommendations? its basically just unsoldered connections..
Click to expand...
Click to collapse
Did you manage to find any solution?
sirsomething said:
Did you manage to find any solution?
Click to expand...
Click to collapse
nope just forgot about it. Im now using my old HTC ONE.
Calico_NC said:
nope just forgot about it. Im now using my old HTC ONE.
Click to expand...
Click to collapse
****. Thanks
I have a Nexus 7 2013 16GB Wifi Model, and i bought it to a local repair shop. But it seems i was ripped off as the repairman could not repair it.
I noticed that some of the circuits are missing from my Nexus Logic board and Nexus no longer boots up.
Can anyone please help me determine these circuits? Here is a picture of the logic board.
All that is marked with a yellow star in the picture is what i am asking about...
Code:
drive.google.com/open?id=0B7LGwJIcFvH1WUtyNWZSTnhYRFU
And also are these parts important? Will the tablet work even without it? Where could i get a replacement of these parts?
Thanks in advance.
P.S Sorry for bad ernglish
What was the original problem? What is the board's revision number?
If it is rev.1.4 and the components are unsoldered/missing, then you were indeed ripped off.
k23m said:
What was the original problem? What is the board's revision number?
If it is rev.1.4 and the components are unsoldered/missing, then you were indeed ripped off.
Click to expand...
Click to collapse
Yeah mines the same revision to the picture you attached. (ME571K_MB Rev 1.4)
The problem was that my nexus was charging really slowly but i didn't really put much attention to it. Then one day while charging my nexus i accidentally dropped it and the charging port went loose so i sent it to a local repair shop to fix the port.
The repairman said the charging ic was also the problem. but then after a few days they still couldn't repair my tablet.
They returned it looking like a mess.
battery wires were a bit chipped off. (No problem here, i used a tester if it still has a connection to the board)
the charging port was soldered upside down.
copper pads covering the circuit was removed.
some of the plastic parts on the speaker looked melted probably due to the solder mishandling.
So is there still a solution to the missing chips?
BTW. Thanks for the reply.! :good:
rexme1 said:
The repairman said the charging ic was also the problem....
the charging port was soldered upside down....
So is there still a solution to the missing chips?
Click to expand...
Click to collapse
The charging IC is probably gone if the port was soldered upside down and powered up. The missing components can not be identified because N7/13 circuit diagram is not available. A working, second-hand N7 motherboard can be purchased for $25 on eBay and it's the cheapest solution. Let us know how it goes....
:fingers-crossed:
Oh ... so it's really busted huh. Thanks for helping me out.
But buying another logic board isn't one of the options i have.
I guess that i'll have to sell it somewhere then.
Thanks again.!
rexme1 said:
Oh ... so it's really busted huh. Thanks for helping me out.
But buying another logic board isn't one of the options i have.
I guess that i'll have to sell it somewhere then.
Thanks again.!
Click to expand...
Click to collapse
Sell the daughterboard after you fix the port, it only has the touch IC and should be good. Those are worth quite a bit. So are the screens especially if you include the frame. Just selling those separately should be enough to get you a n7 2012 or even a 2013 if you get lucky.