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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
Hello, i am new to xda-developers, so please have patience with me
I was using my original usb cable to charge my phone from my laptop. But one day some strange things started to happen, when my phone's battery was completely depleted i connected the usb and phone started turning on and off very often and I wasn't able to charge it even a bit. When connected to wall socket charger everything seems to be fine, it's charging.
But now the usb is not working, neither computer sees it (before i used it), i used other cables, no good. Now it's original ginderbread ROM, maybe i should reinstall it, but i can't do anything since usb is not working in any way.
Maybe someone of you had similar problems and know how to solve it?
Thanks in advance!
supelis said:
Hello, i am new to xda-developers, so please have patience with me
I was using my original usb cable to charge my phone from my laptop. But one day some strange things started to happen, when my phone's battery was completely depleted i connected the usb and phone started turning on and off very often and I wasn't able to charge it even a bit. When connected to wall socket charger everything seems to be fine, it's charging.
But now the usb is not working, neither computer sees it (before i used it), i used other cables, no good. Now it's original ginderbread ROM, maybe i should reinstall it, but i can't do anything since usb is not working in any way.
Maybe someone of you had similar problems and know how to solve it?
Thanks in advance!
Click to expand...
Click to collapse
find a used Tooth Brush and clean ur Phone's Micro USB port thoroughly,then try connecting and see
Sun90 said:
find a used Tooth Brush and clean ur Phone's Micro USB port thoroughly,then try connecting and see
Click to expand...
Click to collapse
Thanks for the quick reply!
I tried cleaning it with Tooth Brush and even used special liquid for cleaning electronics contacts and corrosion removal, everything seems to be clean. But still nothing happens when connecting to laptop.
P.S. Same cable is working when charging from wall socket charger, so it seems the contacts must be clean and intact (at least power supply contacts), so maybe it should charge from laptop?
P.S.S. I forgot to mention, when the phone's battery is depleted, when i connect to laptop, it doesn't charge but in time phone becomes hot. So maybe this would prove it's a hardware problem?
Try different laptop USB port. If this doesnt help than probably your data cable is faulty. Just replace it with another one.
I think Your phone is fully operational if AC charging without any problems.
i9.0.1.3k galaxy imperator
SirKunon said:
Try different laptop USB port. If this doesnt help than probably your data cable is faulty. Just replace it with another one.
I think Your phone is fully operational if AC charging without any problems.
i9.0.1.3k galaxy imperator
Click to expand...
Click to collapse
I have already tried different laptop ports, even different laptops, already tried with different cables (which all functioning properly with other devices and all are marked U2). I am pretty sure that's not connection / cable problem.
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
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.
Hello all,
I'm having a strange issue with my unlocked US998 LG V30 running rooted US998 firmware. I have a desktop PC with a Gigabyte Designare Z170 Motherboard Running Windows 10. This motherboard has USB-C 3.1 ports on it and I would like to use them to charge/transfer files to and from my phone. So I'm using a USB C to C cable and when I plug it In everything works perfect, my phone will fast charge, I have MTP access, and USB debugging all work.
However, I'm noticing some odd behaviors. If I set my phone down and allow it to fall asleep, the screen will turn off and almost immediately the usb connection to the PC will drop. This connection drop kills everything even fast charging and has the fun added side effect of waking the phone up. With the phone awake a short instant after the usb connection dropped, I can see the animation near the USB plug indicating that the usb cable has been inserted and fast charging resumes (but the USB data connection takes another second or two to re-establish).
The USB data connection re-establishes just in time for the screen to turn off again and restart the cycle over, causing the USB to disconnect screen to wake etc...
Things I've tried and learned:
This doesn't happen with a USB 3.0 (C to A cable) or USB 2.0 (C to A cable) on my same desktop
USB 3.0 and USB 2.0 don't support fast charging which makes me suspect fast-charge may be playing a role in this problem somehow.
Using the phone and keeping it awake will keep the USB connection working perfectly
Enabling stay-awake setting in developer options is a viable workaround for now.
My PC's relevant drivers are up to date (Chipset Drivers, Thunderbolt Drivers, USB 3.1 Drivers) and the problem persists whether i have LG's drivers installed or not.
As my phone nears 100% and fast-charging is no longer in use the problem goes away completely. (Furthering my suspicion of fast charging playing a role in the problem)
I took a logcat (attached below) as the phone initiated sleep up to the point where USB gets disconnected and noticed the following two lines:
Code:
09-17 19:08:41.809 856 856 D [email protected]: Writing LCD OFF to /proc/lge_power/charger/restricted_charging
09-17 19:08:41.811 1353 1571 D PowerManagerServiceEx: setRestrictedCharging Mode : LCD OFF
If any one has any insight it would be greatly appreciated. This certainly isn't a deal breaker with this phone but I do plan to develop with this phone plugged in a lot; also unsolved mysteries like this bug me.
Problem solved.
I'm reporting back for any one that may have a similar issue in the future. I have solved my problem with the phone connected to my Desktop via USB C to USB C cable. Originally, at the time of writing this question, the problem was that the USB connection would disconnect when the phone sleeps and then reconnect causing the phone to wakeup from sleep. This was eventually made worse when I installed some custom ROMS like dotOS for example. After installing dotOS the USB C to USB C cable was completely unusable. Upon connection it would promptly disconnect and reconnect in a cycle until it was unplugged, rendering it useless for charging or file transfer.
TL/DR, the broken version of the thunderbolt 3 firmware on my motherboard was the cause of the issue. Searching for and updating the firmware (not driver update) for thunderbolt 3 solved my issue.
I have now found a solution to both issues! :victory:
The cause:
My motherboard supports Thunderbolt 3 over USB C. This would normally be a nice feature, as it would allow me to turbo charge my phone while transferring files etc... However, unknown to me at the time, the version of the thunderbolt 3 firmware (on the chip on my motherboard) was outdated. This is deeper than a driver issue, and Gigabyte (my motherboard manufacturer) doesn't advertise well that there are newer firmware versions available for this motherboard.
The solution:
My solution to the problem was easy after discovering that Gigabyte was holding out on me. For Gigabyte boards on the overview page of my particular motherboard there is a marketing section talking about thunderbolt 3 and how the motherboard supports it. What caught my eye was the phrasing "To upgrade your motherboard to Thunderbolt 3: Click Here". I thought this was odd as I assumed my board supported it out of the box. Clicking it takes you to a somewhat hidden page that has downloads for firmware updates for the Thunderbolt 3 Chips. After downloading and running them and following the instructions all my USB issues with my phone have gone away! :good:
So the the broken version of the thunderbolt 3 firmware on my motherboard must have been failing to initialize the device connection in someway, causing it to misbehave.
Sorry, I realize this post isn't related to any particular phone and this post would probably best be posted on some forum related to my motherboard, but my original question assumed it was just a problem with the phone. Any one with a thunderbolt 3 port with problems similar to those described above, you might want to look into a firmware update!