Battery status wierdness after USB port change - Nexus 7 Q&A, Help & Troubleshooting

Hi!
I have changed a bad USB port on my gen 1 Nexus 7.
Now the Nexus doesnt seem to recognize that it is plugged in, BUT the battery is actually charging...
The battery icon when shut of shows charging and the Icons and info in the OS shows that battery % is increasing when plugged in, but the status doesnt show as plugged in, or showing the icon with a lightning...
Hardware or software issue?
/Daniel

Okey, some additional information...
Doesnt recognize that it is connected to a PC either... Have tried a factory reset...
Using unrooted stock 4.4.4.
So,
new usb-port/audio-jack part installed
The OS doesnt recognize when and USB cable is plugged in, either for charging or PC connection
The battery DOES charge when connected, the battery indicator when the tablet is shut off shows that is is charging
Have re-checked HW connections
So, conclusion? Any ideas? hardware or software issue?

Try a different cable? Else, it's your USB port.

Yeah I have tried a couple of different cables and plugs... no change.. have a plug that gives 5V,2100mA, and the original gives 5V,2A...
I have looked at the part, and it says Rev1.2, ME370T_IO_FPC, which seems to be the one available at asusparts.eu... So that should be correct...
So, faulty replacement part, is that the most likely conclusion?

It could just be that the battery connector is loose. The method of securing the battery in these devices is weak (essentially sticky tape) and it's easy for the battery to shift such that the connector can get out of alignment. It only takes a little bit to encounter issues and it may look like it's secure when you open up the back, but then you apply a little pressure to the connector with your fingernail and you may find that there's a little give and the connection wasn't as snug as you thought.
Anyways, try disconnecting/reconnecting the battery and see if that changes anything. That's all I've got, unless it's an issue with how you connected the new USB port to the main board (actually, you might want to check the ribbon connector on that too to make sure everything is lined up correctly with the main board; who knows, it might only be partially connected to the main board hence the minimal charging but no data transfer).
Edit: Upon further reflection, a loose battery would have nothing to do with the lack of ability for a PC to recognize the tablet. I would start with looking at the USB port connection to the main board and either checking to see if everything is aligned and/or properly connected, and possibly try reseating it just to be sure.

My nexus 7(2013) had the same thing wrong fix it and it power up but it seem to die out in less time

Related

HD2 cannot be recharged and cannot be recognized by computer

It is really weird. When the battery was low yesterday, I plugged the phone into a wall charger and found that it was not recharged. And then I plugged it into the USB port of my computer, it was not recharged either. The computer also failed to recognize a new device was plugged in.
I tried different computers and different cable. No recharge. No recognition. At first, I thought the battery must be dead. But this cannot explain why the computer did not communicate with the phone. So does it mean the micro-USB port in my HD2 was dead?
The only thing I did recently was to install the latest Chucky Rom. Is it a bug from the rom?
Any help is highly appreciated!!!
its a cgonfig you can change in the settings menu, start, settings, in my phone then the menu on the lowest level, about the phone, battery, there you can mark if you want to charge while connected to the computer, why its not found, i dont know, but know you can charge
foxhotel8899 said:
its a cgonfig you can change in the settings menu, start, settings, in my phone then the menu on the lowest level, about the phone, battery, there you can mark if you want to charge while connected to the computer, why its not found, i dont know, but know you can charge
Click to expand...
Click to collapse
The OP mentioned he can't charge when connected to the WALL charger, so changing the "Charge when connected to PC" option wont fix the fact he can't charge it thrue the wall i'm afraid.
You said you installed a new ROM lately? Maybe revert back to the previous rom or a stockrom to test? If this doesn't work theres a big chance your USB port might be broken... (or a defect charger, but since it doesn't get recognised on the PC aswell i'm a bit afraid it might be your USB port on your device)
doesnt sound like a rom issue since charging happens even if the phone is switched off, so its not handled by the rom. could be a repair job... you can get cradles of ebay that have a battery slot for charging spare batterries. That wayt you can flash wait you need cable working to go back to stock spl... doh!
does anyone know why my hd2 wont turn on unless plugged in and all it does is reset at the "stick together" screen? i was recently stuck at the "this concludes your beta" screen.. but after i hard reseted it.. it kept doing this.. please help!
check your battery
wangxueqian said:
It is really weird. When the battery was low yesterday, I plugged the phone into a wall charger and found that it was not recharged. And then I plugged it into the USB port of my computer, it was not recharged either. The computer also failed to recognize a new device was plugged in.
I tried different computers and different cable. No recharge. No recognition. At first, I thought the battery must be dead. But this cannot explain why the computer did not communicate with the phone. So does it mean the micro-USB port in my HD2 was dead?
The only thing I did recently was to install the latest Chucky Rom. Is it a bug from the rom?
Any help is highly appreciated!!!
Click to expand...
Click to collapse
Have a look in the usb socket on your phone. There should be what looks like a piece of plastic(contact strip), sticking up in the middle of the socket. If this is not there, you have broken the usb socket and will need a new one.
If it is there, is it leaning over to one side (no gap between it and metal socket)? If yes, very carfully try to move it away from side.
If contact plate is there, with a wooden toothpick (do not use anything metal or hard plastic), wipe over contacts, as these sockets tends to fill with dust and lint from pocket.
malex1 said:
Have a look in the usb socket on your phone. There should be what looks like a piece of plastic(contact strip), sticking up in the middle of the socket. If this is not there, you have broken the usb socket and will need a new one.
If it is there, is it leaning over to one side (no gap between it and metal socket)? If yes, very carfully try to move it away from side.
If contact plate is there, with a wooden toothpick (do not use anything metal or hard plastic), wipe over contacts, as these sockets tends to fill with dust and lint from pocket.
Click to expand...
Click to collapse
Thanks for your input. I tried all the methods you mentioned but no luck. The phone is not charged. So I guest the USB charging socket was broken ...
So for HD2 owners, be care of your usb charging socket. It might be very fragile.
Make sure the battery pins in the phone aren't bent. If the conracts aren't good you won't be able to recharge. or so I've heard.
I had the same problem
The only thing that help me was doing a hard reset. I tried to charge it with different chargers, different comp. At one point I was thinking to bring it back to tmobile, but luckily the hard reset did the job. One other thing, I was not able to do the reset by holding down the buttons, I had to do it from settings->security->factory reset and enter 1234. Good luck
I had this very same or similar problem yesterday. I thought I had killed it with a rom update but it turns out I had somehow managed to bend the middle pin on the battery terminals. it would still turn on on but would not charge at all & battery was just draining. When plugged into USB or wall socket it would not show the plug symbol it just showed battery as 100%. once I straightened the middle pin up all was great again.
how did you streighten the middle pin in the usb port i can hardly see anything down there
regards

HTC HD2 charging problem

i am new to all this windows mobile thing .. bought a used hand HTC HD2...
thing is i tried to connect HD2 with charger but there was no charging sign on mobile screen... after that i tried to connect it with my USB and cell phone starts charging...
turned off my cell phone.. reboot again and now when i try to charge my cell phone through USB wire nothing happens.. Windows Mobile Device Center shows that my cell phone is connected with my PC but there is no charing sing on my cell phone.
I have a extremely basic idea of what you're trying to say. So you tried to hook it up to a wall charger, but it didn't charge. Then you hooked it up with a USB cord and it started charging? Now it wont charge through USB at all? Sounds like the USB port on the phone is busted.
jdwrrzmm said:
I have a extremely basic idea of what you're trying to say. So you tried to hook it up to a wall charger, but it didn't charge. Then you hooked it up with a USB cord and it started charging? Now it wont charge through USB at all?
Click to expand...
Click to collapse
thats right.... but if USB port is broke then why Windows Mobile Device Center shows that is connected with my PC :S
Sounds like a faulty USB port on the phone if a wall charger wont even charge it.
Just to be sure, go to the settings tab in Sense, click on About Phone, then Battery, and make sure that checkbox that says 'When phone is on, do not charge the battery . . ." and make sure it's unchecked.
already unchecked that option. if USB port is faulty why WMDC showing it is connected with PC?
Only the power part, and not data, is dead?
I would take out the battery & check the pins that make contact between the phone & battery incase they're damaged or bent.
Also could be a faulty battery or loose connection on port?
rgrover said:
I would take out the battery & check the pins that make contact between the phone & battery incase they're damaged or bent.
Also could be a faulty battery or loose connection on port?
Click to expand...
Click to collapse
i was thinking the same thing had it happen to me before. the middle pin was bent up a little i just bent it back and all was well from there.
last night i left the phone... now in morning i just changed the Sim and connected again and now its charging...
I am confused because i cant pin point the exact problem...
rgrover said:
I would take out the battery & check the pins that make contact between the phone & battery incase they're damaged or bent.
Also could be a faulty battery or loose connection on port?
Click to expand...
Click to collapse
will check it out..
all these problems i am facing is it because of rom
Hardware:
QualCOMM(R) 8250B
Speed 1024MHz
RAM 448MB
Flash Size 512MB
Software information:
OS version 5.2.21864 ( 21864.5.0.81 )
Manila version 2.5.19202525.0
Rom version1.43.110.2 ( 70315 ) WWE
ROM Date 10/28/09
Radio version 2.04.50.22_2
The HD" doesn't actually show a large battery charging animation across it's screen when it's charging - instead you just get a light illuminated on the earpiece speaker so it's not that obvious that it is charging compared to other devices.
HTC HD2 Leo Charging Problem
If youre having charging problems then my best advice is to remove the sim card and charge it.
It works that way for some reason. I tried everything from trying different chargers and different usb ports. I tried plugging it in to a computer but nothinig seemed to work. So i removed the sim card for no reason and plugged it in and booom It worked!
Hope This Helps​-Drian
htc hd2 charging problem
strangely enough,removing the sim card actually allows the phone to be charged....weired
thankss
some slight oxidation (not visually detectable)
For those people where the phone charges without SIM Card:
Since SIM Card is so close to battery, could it be that the contacts of the battery are not making good contact?
It looks like fumbling around with battery helps with your problem.
Have you tried charging with SIM Card and just fumble with battery?
Looks like you are suffering from poor contact between phone and battery. Perhaps some oxidation?
Another solution/test:
Take soft normal pencil (no colouring pencil, B, 2B or softer) try colouring contacts of phone and battery with pencil taking care to "stay within the lines"
This does two things: leave a residue of carbon, which favors making contact and scours slightly removing slight oxidation and or grease, removing that favors contact too.
Similar Problem
I have the same symptoms BUT the device charges under Windows Mobile and NOT Android. I have had the android os crash last night when I didn't know that it wasn't charging and just now it was at 40% and I had it plugged in and did a battery pull to find it dead. Looks like Desire v5 isn't allowing it to charge through USB. Very disappointing situation.
Thank you guys
I woke up this am to a dead phoen that owuldnt charge unless phone was off a quick search and this thread sorted.. I love this website..
To me it all sounds like a bad contact in the micro USB on the phone. I have personally a problem with this and I found this by moving the plug slightly during sync as it cancellers the sync and restarts it.
Now for another problem I have in this direction; I always charge my phone from USB and this gives me no problem, but every now and then (1 in about 10 charges) the phone is locked after disconnecting from power or it switches on OK but after that does not recocnize my password and the only way to get “in” is a hard reset (battery out). Is there anyone had a similar experience or knows a solution.
THanks guys i was thinking i may need to pay money for fixing but it works fine because of your help
Hi all,
After flashing the ROM v.3 Hyper-CM7 XMAREX my Leo does not charge the battery more.
The LED lights up, but the battery will not charge.
I tried the original ROM, but Windows is almost the same thing.
The LED lights alternately red and green but the battery does not charge.
Any advice?
Thank in advance.
Hi guys, i also have a problem with my HD2.
My USB port is broken and i brought it to several shops to fix it but they couldn't fix it.
How can i fix it myself? (And by myself i mean my own dad)

Over heating and USB problem

I've had my Galaxy S2 for 4 months now and now have a problem. When I plug the phone in, whether to USB or to the charger, it takes it a bit to recognize the phone is plugged in and to start charging. When I plug it in to USB it will charge after a minute, but I can not connect my phone to be mass storage. Windows can't detect it at all. If I disconnect the usb cable, my phone still thinks it is connected, with the notification for USB connection staying in the notification bar. In addition to this, my phone gets excessively hot regularly. I always make sure there isn't a runaway app, but that doesn't seem to matter.
Any one have any ideas?
I found a thread that describes my problem here.
http://forum.xda-developers.com/showthread.php?t=1216163
I think I have solved the problem. I somehow managed to bend the USB pcb connector. I bent it back up towards the screen and everything is acting normal again. Read the link above for more information

[Q] Defy reboots after plugging in usb

I recently flashed my Defy with 3.4.2-179-2 CEE DEBLUR and it reboots every time I plug in my usb cable. It doesn't matter if it's connected to a PC or to the power adapter. Anyone have the same issue and know of a solution?
I did a google search and found someone complaining of the same issue but didn't see a solution.
More background:
I had an issue with my phone and when I went to do a factory reset I was stuck on the google screen. My power ended up running low to the point where I couldn't run the bootloader. I had to charge the battery manually with a battery charger and some wires. I monitored the voltage throughout to make sure the battery was ok. After flashing the new SBF I found that things worked fine except whenever I plugged in a USB cable it would reset. I put CM7 on the phone hoping it'd help but the problem still lingers.
I will probably attempt to flash another SBF or maybe reflash the existing one.
Does this problem only exists if the phone is fully booted or does it happen if you plug it in while booting also? Because if its happening while booting too maybe your usb cable is broken and theres a short in the cable that makes the defy reboot. Have you tried another cable? And what about plugging the cable in before booting the phone? Tried this already?
I encountered this problem occasionally before. Dunno why.
There's 3 possible issues here apart from software/firmware causes.
1) The USB cable might shorted.
- This can be confirmed by using multimeter to test the usb cable. You will see a shorting between to wire in the USB cable.
2) The Phone USB port might shorted.
- This can be confirmed by using another good/new usb cable and test it with multimeter.
3) Phone battery broken(happened when you charge it using wire and external charger).
- This can be confirmed by trying another Defy battery and charge it.
hi farsight,
upon further inspection i'm pretty sure the usb port is shorted because if i squeeze the bottom of the case the phone will reboot.
is there any way i could fix this? I've looked at some videos for the disassembly of the defy.
hi iregistry,
yes the issue occurs if the phone is fully booted and when it's booting.
quit risky la.. if under warranty, why not claim/RMA?
hi adie, i bought it new on ebay and i'm not sure how the warranty works on that.
[solved!]
after further testing I believe it was because the battery contacts were not as close together as they were originally due to me manually charging the battery. It must have been right on the very edge because it would work normally but just squeezing it would make it lose connection.
I used a pin to push the contacts closer together and hope this solves the issue. I've plugged in the usb and squeezed the case and so far everything seems ok.
IMO this is a poor design on motorola's part. the raised contacts on the phone are nice but the contacts on the battery are poor.
Thank you everyone for responding.
Had the same issue. Your solution worked on mine as well. Pushed the contacts on + and - in, and it worked! Thank you!
I had the similar issue. I had attempted to charge battery with external universal charger and looks like since then this issue where "phone would reboot upon unplugging the power source" started. Now as mentioned in this post, put the +/- pins bit closer and tried unplug and no issue observed so far.
Thanks. :good:
I too have the same issue. I tried to charge the battery with some direct USB.
Today I dropped the phone on my bed from 2' height and it got restart. But its quite surprise to see the effect of the USB plugin with the battery connector loosing up
I am thinking of putting a small alumunium wrapper on the +/- connector. Let see.

[Q] USB Charge/Connection issue

Hey all,
I have a Galaxy Nexus which recently started to act up on his USB port saying it's constantly connecting /disconnecting to the charger with no cable present.
Device: Samsung Galaxy Nexus
Edition: Maguro GSM
OS: CM10.2 nightly + CM11 Alfa
Chargers: OEM, generic, battery & laptop
Cables: OEM & generic
Reproduceable: sometimes
This week I noticed my phone did not react immediately when I plugged it into the charger. Mostly after some fiddling (bending the cable away from the screen) it would start charging. After pulling the cable or removing the charger from the wall, it would generally take 5 to 10 sec for the phone to realize I pulled it- this used to be instantly.
Strangely, when the phone said it cannot charge it can be connected to a computer as Media Device without any problem. Charging only happens after the fiddling again.
Looking into BBS, it cannot give any stats because it says the device is connected constantly to a charger. Android original battery monitor stats are also a mess but it does not say I am connected always.
Every now and again the phone also starts making notifications as if he was constantly connecting and disconnecting - leading to frustrated looks of the people on my train...
Cleaned out the port - no success
Hit it on the train table - no success
Reset, battery pull, flash, different OS - no success
After this all I think it will be a hardware issue. Nothing seems bent and no pins seem to be sticking out. Removing the back and checking the mother board showed everything still intact and all connectors still in place.
I'm guessing now the micro USB connector of the phone has somewhere some corrosion or a pin out of place but not visible to the untrained eye.
Can someone shed some light please?
2 screenshots to show you what I mean.
No, I am not up for 9 hours and lost only 10%... Battery life has become horrible since this issue. It just thinks it's constantly hooked up to a power source and I think it's no longer power efficient because of this. I already disabled charge connection sound because it was driving me crazy ...
Please help if you know even half a solution. I can also post a photo of the connector but the problem is that there's not much to see there...
I think you have problem with charging circuit >>if you have solid knowledge in electronics you can simply replace it
replacing this port in attached pic will solve your problem .... otherwise you can fix your own port because I think one of your USB port pin are touching the ground chase of your motherbord
Thanks for the reply. Somewhat saw it coming I would have to replace something...
I already looked on some sites like ifixit to see what I could do but I thought to have seen that the Motherboard was in one big piece.
Could you please give me the website where you found this or the name /article code of this component?
Thank you
sigixv said:
Thanks for the reply. Somewhat saw it coming I would have to replace something...
I already looked on some sites like ifixit to see what I could do but I thought to have seen that the Motherboard was in one big piece.
Could you please give me the website where you found this or the name /article code of this component?
Thank you
Click to expand...
Click to collapse
try to follow the steps on the link it is very helpful http://www.ifixit.com/Guide/Repairing+Samsung+Galaxy+Nexus+(Verizon+LTE)+Micro+USB+Charge+Port+%26+Main+Mic/9641
and you have nothing to do with the motherboard just take the old charging port and install the new one
Ordered a new part. Hopefully it'll work...

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