Database Users

USB Issues

Just starting yesterday, when I plug my phone into my computer all it does is charge. No option to mount, no "usb not recognized", nothing. I can get into download mode but Odin doesn't recognize it.
I've searched dozens of other threads, tried most suggestions and can't seem to get anything to work. Suggestions would be appreciated.

Maybe you don't have drivers or bad USB I have 2 one only charges the other does both
Sent from my SGH-T959 using XDA App

Reboot the phone
Sent from my SGH-T959 using XDA App

I have the drivers, I've had no problems connecting previously. I've rebooted the phone multiple times.

Out of 3 galaxy s type devices: 1 doesn't even charge anymore, 1 charges but wont do data and 1 works if the cable is held at an angle. I think samsung can't make usb ports

I'm just now about to start a post asking how to change roms with out my usb. I had the same problem start months ago. First things where normal. Then, every now and then I would have to re plug the usb cable into the port to get it to mount. Then finally one time it just all together stopped working. I can charge, the charging icon comes up but no mounting options.
On the bright side, this is the first phone I have ever owned that I can just sync over wifi. And at least its not an apple device, if charging stops I can get an external battery charger ; )
Nick

My vibe is over a year old and I never close the door on the usb port. When I had the same issue as the OP it was a dirty usb port. I carefully cleaned it, which took a few times and it finally worked. Do it with the battery pulled. The loose port is caused from the male end of the original cable not the phone so I bought a new cable and it fits snug.

[Q] Nexus 7 only charges when connected to a PC, not a USB wall outlet

Seems a bit odd but my Nexus 7 (1st Gen) will not charge when connected to a USB wall outlet. But it has no issues charging when connected to a desktop/laptop.
The following I have tried:
- I have rebooted, shutdown, booted into the boot loader and shutdown/rebooted from it into the OS
- I have tried several USB wall power adapter range in amps output from 0.7 to 2.0.
----Also tried 4 different USB cables with the USB wall power adapter.
-Enabled/disabled developer mode along with USB debugging mode
-Tried charging the unit when it is OFF and ON, only charges when connected to a USB port on a desktop/laptop
-Removed the back cover to see if the USB port could be loose, looks and feels securely in place
Not sure if it could be a software issue, unit is running 4.3 build number JWR66Y. I am hoping to avoid resetting the unit but if I have to I will.
Thoughts anyone?

Is your device rooted? If yes, then try to change the ROM (make a nandroid first).
Sent from my Nexus 7 using XDA App

maybe this shud work for u , it worked for me
wipe cache partition from CWM Recovery
http://canvas2update.blogspot.nl/2014/11/not-connecting-as-usb-storage-only.html

I would say if your rooted and cutomed and all that try a different kernel before a whole new rom. Kangaroo kernel first page of dev page is good.

Mine gets stuck sometimes. I installed battery monitor widget to see the actual current flow when charging. Even though it shows ac connected the graph can remain flat with no charge. Replugging the cord a few times gets it going. A charge only USB cord might help, but I've gotten the best amperage with the included cable so far.

Nexus 7 2012 - USB & Developer Toggle Cause Restart

I have a serious issue with my Nexus 7 2012. I put CM11 on it and all was great. The power got down to 11% on me, so I plugged it into my computer. I noticed it wasn’t charging, MTP didn’t kick in, and I couldn't get into ADB. I figured I’d screwed up the USB port. I tried different cables all with the same results. I turned the tablet off and plugged it in and the battery started charging. I couldn’t get MTP or PTP to work nor could I get into ADB after it was charged. I did a factory reset, clearing everything, and reinstalled. Same issue.
I can use my OTG cable and TWRP to install software on the tablet. I tried AKOP ROM. It allows me to use my OTG cable but the tablet doesn’t charge. I try to toggle MTP to PTP or turn off USB debugging and the tablet locks and reboots. I try to turn off the developer options toggle and the tablet locks and restarts.
Help! I don’t know what to do with it. I've searched all day.

Check the basics. When you plug your N7 into your computer, are you using a USB 2.0 port? Is it directly mounted on the computer's motherboard (i.e., a rear port)? Are the proper drivers installed so your N7 is recognized as a Nexus 7?
USB specifications only provide .5A power, v. 2.0A power from the AC charger. Get your N7 fully charged,then get back with whether it locks and reboots.

exglynco said:
Check the basics. When you plug your N7 into your computer, are you using a USB 2.0 port? Is it directly mounted on the computer's motherboard (i.e., a rear port)? Are the proper drivers installed so your N7 is recognized as a Nexus 7?
USB specifications only provide .5A power, v. 2.0A power from the AC charger. Get your N7 fully charged,then get back with whether it locks and reboots.
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Click to collapse
Thanks for the reply. Yes. I've done all of that. Multiple computers, multiple cables, multiple chargers. The Nexus is at 100%.
Here's the exact issue I have now: http://forum.xda-developers.com/showthread.php?t=2536272

Well. I'm going to say disregard. My searches show that a craptastic 12 volt car charger probably hosed the N7's mother board. I'm going to try one more fix but I'm sure it's toast.

S5 keeps disconnecting and reconnecting from USB

I have a really weird problem running Windows 8.1 whilst using my Galaxy S 5.
The phone, when plugged into any USB port keeps disconnecting and reconnecting like 2 times a second...
Things I've tried:
1. Different USB cables including USB 2 and USB 3.
2. Different ports.
3. Disabling 'turn off device to save power' in all USB hubs/devices through Device Manager.
4. Using 'High Performance' power mode and ensuring all 'turn off USB devices to save power' options are set to 'No'.
5. Reinstalling the Kies 3 drivers and software.
Here is a video of the issue:
https://www.youtube.com/watch?v=o6tuCp7QNJI
Does anyone else have any ideas? This happens all the time on my laptop...

Yep, happens with mine too, and happens with my nephews S3 too
Also disabled power saving for USB etc
Seems to help if you switch between USB debugging and back again a couple times while it's connected

Is there anything like a proper fix for this? Does the problem stop on Lollipop?

tried a lot
cant connect ....

With the stock charger?
I put the S5 on my trusty 8A 5-port Anker, and immediately noticed this. If you leave the S5 alone, it will settle to constant charging at max amperage, according to Battery Monitor Widget's log.
Nevertheless, I haven't seen such before, not even with my Note 10.1 2014, which uses the same charge mode.

Powered USB hub
leijonasisu said:
I have a really weird problem running Windows 8.1 whilst using my Galaxy S 5.
The phone, when plugged into any USB port keeps disconnecting and reconnecting like 2 times a second...
....
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Click to collapse
I've been fighting the exact same problem.
While I _believe_ there should be a software solution for this, since it wasn't always a problem, I believe it to be power related and have gone for a hardware solution.
The definitive cure for me (as of this morning) was to purchase an external *powered* USB hub.
(FWIW, an Ativa Mobil IT "Travel" 7-port USB 2.0 hub from Office Depot. And only because that was the only model where it could be tested before purchase without destroying the packaging).

Usb-pc and charging problem.

Hello, I am the owner of the Chinese version of the phone. I have trouble. After installing the unofficially firmware there was a problem.
The switched on phone does not see the connected charger, does not see the PC. (PC does not see my Phone too. No New devices)
If the phone is switched off and connected to the PC, then turn on my Phone, the PC and the phone see each other, until the cable is removed.
If the phone is switched off and connected to the charger, the phone is charging. If turn it on(connected to charge) Phone is charging, but only slow charge (no qc)
I tried different chargers and cables, including official.
I tried to install different firmware via Myflash and Axon7_EDL_Tool
for example:
A2017_B13_FULL_EDL_UNBRICK_DFU
A2017_B17_NOUGAT_FULL_EN
A2017_B11_OREO_FULL_OR
etc.
disassembled the phone, all contacts on the board are normal. externally all is ok.
what do you advise? how to return the phone to its normal state?
(google translate)
Add
If connect turned on Phone to pc an wait, sometimes pc see New device
unknown USB device (port reset failure)
There was a problem with starting the USB device \ VID_0000 & PID_0001 \ 5 & 376aba2d & 0 & 18.
Driver Name: usb.inf
GUID of the class: {36fc9e60-c465-11cf-8056-444553540000}
Service:
Bottom filters:
Upper filters:
Problem: 0x2B
Problem status: 0x0

Still waitin 4 cure

Heey, smbd help me

Reinstall the drivers? Try a different cable? Perhaps a fully clean flash?

Skv012a said:
Reinstall the drivers? Try a different cable? Perhaps a fully clean flash?
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Click to collapse
I tried all this. different chargers, cables and pc
a few hours ago I flashed the phone without the battery. problem still exists.

FaTAX6 said:
I tried all this. different chargers, cables and pc
a few hours ago I flashed the phone without the battery. problem still exists.
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Click to collapse
Very strange... it should not just stop working with usb port suddenly like that. You might have to try ordering a new USB board from Ali Express to actually make sure it's not the board. Some chip on it may have bricked that would be harder to ping.

mine does this too, only way to get it to charge is to power off, plug phone in, and then power back on. Tried clearing cashe/delvik and even wiped everything clean and did a fresh install of newest version of bootloader/twrp/rom

I am also experiencing this recently. about two weeks already not having quick charging and PC connection nor OTG function not working.
If I have time, I'm gonna open up this phone too.