[Q] VIII., dedung - Galaxy S II Q&A, Help & Troubleshooting

HI guys,
i have 2 problems from 3 days:
i have a problem with my SG2 when i disconnect the charge cable my phone continually stay in charge and every 10-15 second say me charging paused voltage too high.
second problem is USB , when i connect my phone to my computer it does not recognize it .
3 days ago all work perfectly now i try to restore stock firmare, full wipe but the problem persists anyone can help me? thanks

Sounds like the USB circuitry issue we see a fair bit of on here. Given you've already done a wipe & gone back to stock & you're still seeing the problem, I'd say it's a repair job.
Edit to add - You could try gently cleaning the USB port with an new/unused toothbrush before you do send it in for servicing.

maybe is hardware problem i dont know But the problem is in the same spot may be the cable entry which is damaged

Yep it could be the socket itself is damaged rather than the board. I guess they only way you'll know (assuming cleaning it doesn't work; which it probably won't) is if you have a mobile tech take a look at it.

The cable itself can become worn on the pins from multiple flashing and removal of usb cable .
jje

Related

[Q] Problem with USB port and function

Today i found out my SGS2 have problems charging the phone, not only that. i also have problems with USB file mode, and keis mode. and if the phone is turned off. i only once got it to charge without booting. else when i connect the USB it boot the OS.
What weird thing is, that ODIN works without problem every time!
The problem appeared after upgraded to Darky Rom KG6 with jkay mod. but don´t think it has anything to do with that.
I reflashed to a Stock KG6 (still same problem)
From OS restore to default, and format (still same problem)
tried to flash back to KE2 stock. an but on CWM, and clear battery stat, and system cache.
flashed backup with a KE2 Kernel (still had the same problem)
What i found out is that, when i disconnected the wall plug charger, the phone still was in a state of charging. and it don´t give the sound notify when attaching the USB. but when touch the USB cable it suddenly charge and give the sound. but it can also go in MTP mode. or start Voice recognize.
Could the be a faulty USB port on the phone, or can Battery State and kernel updates have something to do with this problem?
im now pretty sure this has something to do with the USB port. when i just spoke on the phone. it suddenly began to change between Car mode a normal.
i than tried an alternative why to deal with the problem. I tried with a hairdryer after taken out the battery, sim and sd card, and carefully heat the back of the phone.
for 5 hour there has not been any problem. both the desk dock, and wall charger is working.
got a dejavu from the xbox days and RROD.
I have the same issue. I think the USB port is faulty.
The phone reacts to different electrical resistor values on some pins of usb port that triggers car mode, desk mode, etc. So, somthing is faulty in the usb board that reports to the system that has something connected to it: charger, car dock, desk dock, usb jig, etc.
I can't find any solution on the forum, I tried with several roms and got nothing.
So... I'm waiting for a USB Jig to reset counter, back to stock rom and send it back to store for warranty
My problem seems to be fixed by using the hairdryer on the usb port. I think the problem appear from the why you hold the phone and if your hånd become sweaty. Because there are nothing to protection the usb port like the sgs1.
mooock said:
My problem seems to be fixed by using the hairdryer on the usb port. I think the problem appear from the why you hold the phone and if your hånd become sweaty. Because there are nothing to protection the usb port like the sgs1.
Click to expand...
Click to collapse
Did you really fixed just cleaning?
Yes it happening two times and it fixed it both times. So there is a pattern
hey guys... I posted something that worked for me...
see my post in the other thread here:
http://forum.xda-developers.com/showpost.php?p=16418825&postcount=25
I hope this could work for you too

USB device not recognised / This device can perform faster

A month or two ago I started experiencing problems while connecting my S2 to the PC or laptop using the data cable.
When I connect the cable to my S2 on the PC or laptop it comes up with the balloon messages in the system tray:
USB device not recognised.
Then a short while later it comes up with another balloon message:
This device can perform faster.
Sometimes while transferring data, it will disconnect and the file transfer fails.
Sometimes if the cable is moved slightly it will cause the device to disconnect from the PC.
And, of course, the file transfers are much slower than they should be and much slower than they used to be.
GT-I9100 Rooted.
I9100XXKKI3
Gingerbread 2.3.6 Stock (Frankenstein)
I haven't touched any ROM or flashed anything on this in like over 8 months so it's nothing to do on that front.
I removed micro SD card and tried reconnecting again, still the same problem.
I've tried different computers, still the same problem.
I've used different cables, still the same problems. Tried enabling and disabling USB debugging. Same problem still remains.
The USB cables and computer and laptop work fine with my S3.
All the correct drivers are installed for the S2.
I'm resigned to thinking it's a hardware issue as I've exhausted other options. Is there a simple fix or will this need sending back to Samsung?
I've had the phone over a year now but someone told me the warranty is two years?
All help appreciated guys. Thanks in advance.
Why don't you upgrade to ICS?
przemcio510 said:
Why don't you upgrade to ICS?
Click to expand...
Click to collapse
Probably because his USB port doesn't currently work properly.
@OP, this is often caused by a dirty or faulty USB port. You can try cleaning it, but you may need to replace it.
Try cleaning it out with a dry toothbrush first.
If that doesn't work, take the battery out, and try cleaning the port with a small q-tip with a small amount of isopropyl alcohol; let it dry for a while after that, then replace the battery.
If THAT doesn't work, you'll probably need to replace the part for the USB port.
If your warranty is still good, you could try to go that route, but you'll need to unroot your phone. Otherwise, I've heard it runs about $15 for the part, and you can replace it yourself. If you don't feel up to it, you can have a cell repair shop or Samsung service center do it for you, but it will probably be significantly more expensive than $15.
My opinion based on your description is the USB socket on the phone is wearing out/damaged. The USB socket is on a small circuit board separate from the main logic board. It's easy to replace and the part is cheap on EBay. Search for a disassembly/tear down video and judge whether you can do it yourself.
Sent from my GT-I9100P using Tapatalk 2
Thanks for the very quick responses guy. They were very thorough as well.
I will look into cleaning the port and if it still doesn't work I'll consider having it repaired. My soldering skills were excellent but I haven't done it for a few years, so may leave it in someone else's hands.
I haven't upgraded to ICS as I was very happy with my phone at the time. Also, a couple of friends who had upgraded to ICS on their S2 regretted it due to numerous problems, which put me off upgrading.
You can still use mobile odin and theres no soldering needed with the usb,it comes as a board with a ribbon cable.
Sent from my GT-I9100 using xda premium
theunderling said:
You can still use mobile odin and theres no soldering needed with the usb,it comes as a board with a ribbon cable.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I've had a look on the Samsung website here:
w ww.samsung.com/uk/support/warranty/warrantyInformation.do?page=POLICY.WARRANTY
It seems as though the warranty period on my phone is 24 months so I might just get it done via Samsung.
I'll contact them in the morning and see where I stand. If not, then the replacement USB board connected by a simple ribbon cable sounds like a doddle. I've seen a grade A condition part on ebay for about £8 delivered.
Thank you once again.
Communist99 said:
A month or two ago I started experiencing problems while connecting my S2 to the PC or laptop using the data cable.
When I connect the cable to my S2 on the PC or laptop it comes up with the balloon messages in the system tray:
USB device not recognised.
Then a short while later it comes up with another balloon message:
This device can perform faster.
Sometimes while transferring data, it will disconnect and the file transfer fails.
Sometimes if the cable is moved slightly it will cause the device to disconnect from the PC.
And, of course, the file transfers are much slower than they should be and much slower than they used to be.
GT-I9100 Rooted.
I9100XXKKI3
Gingerbread 2.3.6 Stock (Frankenstein)
I haven't touched any ROM or flashed anything on this in like over 8 months so it's nothing to do on that front.
I removed micro SD card and tried reconnecting again, still the same problem.
I've tried different computers, still the same problem.
I've used different cables, still the same problems. Tried enabling and disabling USB debugging. Same problem still remains.
The USB cables and computer and laptop work fine with my S3.
All the correct drivers are installed for the S2.
I'm resigned to thinking it's a hardware issue as I've exhausted other options. Is there a simple fix or will this need sending back to Samsung?
I've had the phone over a year now but someone told me the warranty is two years?
All help appreciated guys. Thanks in advance.
Click to expand...
Click to collapse
This is a Cable problem. The USB port of your device is wider now, that's why the cable doesn't fit well. Buy a micorUsb cable for blackberry, it's always very full and thick, then use it to connect your phone. The issue should be resolved.
I once had the same problem with my Nokia N8 and using a Samsung cable (which looks fuller and thicker) solved it.
Yeah warranty should be 2 years BUT youll have to unroot it first if your sending it to them.
They may also wipe your phone and stick on 4.0.4.
If you get the board yourself,check the number is going to be the same i.e the spare one I have here is GT-I9100 rev2.2.
Also other people have got a replacement board and the mic doesnt work(think the boards are sold as refurbished).
So its up to you which option you go for.
Sent from my GT-I9100 using xda premium

[Q] My S3 is not charging

Like a week ago my S3 9300 was taking longer and longer to charge now it won't charge at all, now is always stuck at 0% if i turn it off it will charge but very very slowly, i don't know if it's the phone or the battery maybe someone here had the same problem and could help me out a little, btw i have it with CM 10.1 thank you
Alejo
Had the same exact problem with my i9300, got it out of warranty repairs yesterday. Was using a custom rom, but the same thing happened when I finally managed to flash it back to stock (had to manually press the microusb-cable as hard as I could into the phone all the time in order to get the phone recognized while Odin was working, was the longest flash ever lol..).
Remember reading about cold solder joints etc before sending it off, so if your phone is out of warranty for some reason you could replace the charging port yourself. Replacement part costs ~5$ (eBay) and if you got the skills it shouldn't be too hard to replace.
EDIT: Actually mine didn't even charge when power off, so I was pretty certain it was a bad solder joint or some other physical problem.. Have you tried cleaning the usb port with pressured air or just blowing into the port? Could be some pins of the usb port blocked with debris. Also check your usb cables, there are those with 5 pins and those with only 4. Saw the difference in charging speed while the thing was still working.
zombie112 said:
Had the same exact problem with my i9300, got it out of warranty repairs yesterday. Was using a custom rom, but the same thing happened when I finally managed to flash it back to stock (had to manually press the microusb-cable as hard as I could into the phone all the time in order to get the phone recognized while Odin was working, was the longest flash ever lol..).
Remember reading about cold solder joints etc before sending it off, so if your phone is out of warranty for some reason you could replace the charging port yourself. Replacement part costs ~5$ (eBay) and if you got the skills it shouldn't be too hard to replace.
Click to expand...
Click to collapse
Well actually when i plug the phone into the PC it will recognize it and i can access the files in the SD card and Internal Memory and everything at the moment it's turned off and it's charging.
I have the problem that the phone only want to charge with soms chargers.
I can connect the phone to the original charger or to a pc or any device without problems, the phone will charge.
Even with an old blackberry charger (only 2 wires, no data) and car charger can i charge without any problem!
But when i connect the phone to the htc charger of my old phone, or to an iphone charger i see the phone is connected but it won't charge.
When i open batterymonitor i see that the charger is connected, but the phone still use his battery.
I tried this with all kinds of charders and all kinds of micro usb cables. Then i thaught there was maybe a resistor or chip or something build in some chargers, because i couls only charge with chargers with 2 wire cables.
Then i took a usb extension cable and i disconnected the two data wires so only the + and - 5V cables were left,
but still no success. If anybody knows where the problem is, please let my know
with kind regards! Martijn

[Q] Unable to connect to pc (no it's not a driver issue....)

Hi,
Having a problem since a few weeks with my s3.
Normally i could connect wiht my phone to any pc,, without any problems. Either it be unix, win, whatever...
Suddnely it stopped working, only thing that happens is charging when i connect it to my pc. Different cables tested, original one, etc..
Connecting it to different pc's resulted in a no go.. so it must be phone related.
No windows pop up, or anything!!
So I figured: Let's install a new rom.
Tried ultima 15 rom, got a different CM rom now (sentinel)... all to no avail.
Is it possible that this has something to do with my radio?
rom info:
android: 4.3
baseband: CEEMG2
Anyone have an idea what to do? Even ADB push ain't working..
See your identical post
I experienced the same problem when m using the Galaxy Nexus S But it was solved by using the app from play store named SD booster... In this app m just set the value of sd card to 1024 give root access and Boom my phone is connected as normal
If this not help then i seriously recommend you to replace the charging port of the mobile through samsung outlet
Go into developer settings, some ROMs may have different ways to get into develop er setting and after you get in make sure USB debugging is enable ^.^
Sent from my SPH-L710 using XDA Premium 4 mobile app
Usb debugging is not required for phone to pc connection see basic faqs and guides .
But as OP has ruled out drivers and cable that only leaves the phone so its worth trying .
Usual replies are
Drivers
Cable
Dirty USB Ports
Not connected to main-board usb port .
I had same issue with my Galaxy SII and when i took it to service center they said mother board needs to be replaced.
So after that SII was good as new.
Got same problem here.
phone is charging over usb , but no data connection (tried different usb cables, different usb ports, different pc etc) but nothing..
also.. tried in download mode and so (after reading forums..) but without success.
then i decided to dissasemble that phone and look, what's inside that beast
cleaned usb port (inside, with contact cleaner), resoldered all pins and etc..
reassembled it back to one piece again and still, no data connection, but only charging
so, here i am, what to do next ? change the usb port on motherboard ?
(visually, everything looks right, good solder points and etc.)
Thanks, Martin
hani93 said:
Got same problem here.
phone is charging over usb , but no data connection (tried different usb cables, different usb ports, different pc etc) but nothing..
also.. tried in download mode and so (after reading forums..) but without success.
then i decided to dissasemble that phone and look, what's inside that beast
cleaned usb port (inside, with contact cleaner), resoldered all pins and etc..
reassembled it back to one piece again and still, no data connection, but only charging
so, here i am, what to do next ? change the usb port on motherboard ?
(visually, everything looks right, good solder points and etc.)
Thanks, Martin
Click to expand...
Click to collapse
if anybody interested:
i've got it working again :victory:
basically, the problem was the hard way (crap usb data connections on motherboard)
soldered new ways for data+ and data-, and now it's back alive again...
(pictures of ways in attachment)
Martin
see you fixed it already but a note to others :
try using usb port right on the motherboard instead of the case front panel usb ports.....connecting to the front usb ports didn't work for me on some roms, but the rear one always connected so I just have a long cable running out of the back to connect my phone and it works on all roms I've used so far
Nice work hani93, i unfortunately do not dare to desolder and solder this stuff
I've noticed another thing though which is weird!!
When i tried to charge my phone via the power charger (the ac one?), when i check my battery view it still says that i'm charging via USB.
I don't think this is correct, i thought it should say AC or something and when charging via USB port on pc it should display USB?
I think this might be one of the issues that it's also not popping up on the computer.
Anyone know what is causing this or someone can confirm that when charging via power supply it should say something else then USB?
Just confirming your question when charging by PC it says (USB) and when its charging from the Mains it says (AC).
hmmm... guess it must be a hardware issue then?
Either usb port or mainboard... christ...
open it up and cleaned the contacts a bit of the usb port...
Still not functioning..
Morbie said:
open it up and cleaned the contacts a bit of the usb port...
Still not functioning..
Click to expand...
Click to collapse
try to go into Download mode (volDown+Home+Power) and then connect usb, same situation?(eg, no data connection to pc ?)
if nothing again.. try to clean usb port inside (where you plug usb cable), sometimes there is dust and etc. then it stops working.
also, how did you clean contacts on motherboard ? i suggest to take soldering iron with clean bit, and drag iron along the pins.

Nokia 7.1 autostart when charging (Damaged USB Port)

First off the biggest problem is the damaged USB port. I got the phone from my little brother in this condition and want to use it as a screen for Klipper. I soldered two wires for charging on the traces of the USB-C Port PCB so data transfer using USB isn't possible anymore. Because I don't want to turn the phone on manually every single time I wanted it to start automaticly when it's charging. The missing USB port causes all the problems as all guides I found are based on some kind of computerassisted install. Therefore I'd be really happy if someone could guide me through this mess and potentially also help others

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