Troubleshooting USB problems - General Questions and Answers

Hello, I have a Samsung A51 through T-Mobile. Recently my phone has only been charging and won't do any data transfer or bring up the menu to select what to do with the connection. After trying many different things I found out it will connect with data transfer only when I restart the phone while it's plugged in. Once I unplug the phone and plug it back in nothing. But if I leave it plugged in and restart it again it shows up.
Any ideas? All help would be greatly appreciated. I've looked around and cannot find anything regarding my issue.
Thank you

Try a known good cable.
Make sure the phone pop up enabling the data connection is enabled. Without permission each time access will be denied... at least on my Samsung.
Access the drive directly in Device Management; hit scan for new devices.
Check Event Viewer for errors logged.
Reload the drivers on the PC.

blackhawk said:
Try a known good cable.
Make sure the phone pop up enabling the data connection is enabled. Without permission each time access will be denied... at least on my Samsung.
Access the drive directly in Device Management; hit scan for new devices.
Check Event Viewer for errors logged.
Reload the drivers on the PC.
Click to expand...
Click to collapse
I can do all that. But only after restarting my phone while it's plugged in. It's not a cable issue or a USB port issue. Ive tried multiple cables and ports. And also tried same cable with different phone. The port on my phone is fine. If I plug it in, restart my phone it shows up as it should. Once I disconnect the phone and plug it back in, nothing. It's very odd. I think it may be an update issue from t mobile. But figured I'd check here.
Thank you for your response

Also, the pop up to allow access only shows up when phone is plugged in and I restart it. I unplug it and plug it back in. And it will only show thats charging and there isn't a prompt or selection of what to do with usb (transfer files, images, MTP, tethering etc.

Shadow42 said:
Hello, I have a Samsung A51 through T-Mobile. Recently my phone has only been charging and won't do any data transfer or bring up the menu to select what to do with the connection. After trying many different things I found out it will connect with data transfer only when I restart the phone while it's plugged in. Once I unplug the phone and plug it back in nothing. But if I leave it plugged in and restart it again it shows up.
Any ideas? All help would be greatly appreciated. I've looked around and cannot find anything regarding my issue.
Thank you
Click to expand...
Click to collapse
Try this troubleshooting steps https://www.wikihow.com/Clear-the-Record-of-USB-Plug-in-Equipment and that https://www.partitionwizard.com/disk-recovery/the-last-usb-device-malfunctioned-windows-10.html from time to time my Samsung devices have some kind of issues with Windows 10.
Also you should try with adb commands pairing both and allow the access always when the prompt appears, it could be some kind of permission denied or malfunctioning that either Samsung is not asking correctly to PC or the permission from PC is not coming properly to device, this should happen due to some old logs or a filled directory in the USB hub in Windows that needs some cleaning.

Shadow42 said:
Also, the pop up to allow access only shows up when phone is plugged in and I restart it. I unplug it and plug it back in. And it will only show thats charging and there isn't a prompt or selection of what to do with usb (transfer files, images, MTP, tethering etc.
Click to expand...
Click to collapse
Check Developer options>USB default configuration
Try clearing system cache on the phone.
Try a hard reboot on the phone.
If you unplug the phone from the PC you need to reauthorize it via the phone pop up after you reconnect it... each time.
If you always leave the PC on, reboot it.

blackhawk said:
Check Developer options>USB default configuration
Try clearing system cache on the phone.
Try a hard reboot on the phone.
If you unplug the phone from the PC you need to reauthorize it via the phone pop up after you reconnect it... each time.
If you always leave the PC on, reboot it.
Click to expand...
Click to collapse
Like I've said. There is no prompt unless I restart my phone while plugged in. This isn't my first phone. I understand how it "should" be working. And it only acts as it should when I plug it in and restart the phone. Once I unplug it and plug it back in its as if I'm using a charg only cable.
Thanks for the response

Shadow42 said:
Like I've said. There is no prompt unless I restart my phone while plugged in. This isn't my first phone. I understand how it "should" be working. And it only acts as it should when I plug it in and restart the phone. Once I unplug it and plug it back in its as if I'm using a charg only cable.
Thanks for the response
Click to expand...
Click to collapse
Meh then play with it... you know the drill.
Goggle it and look at other models/OS's that had the same issue as well. A lot of the same issues keep reoccurring so this tactic is helpful with newer models too.
Either it's settings, the load got screwed up or it's hardware maybe the port. Worse case... a mobo failure.
Try it in safe mode.
I probably do a factory reset* especially if it's an old load. If that fixes it but the issue returns latter, it's a setting or 3rd party app causing it.
*if it persists after a factory reset it's possible the firmware version is the problem or the firmware got corrupted during the flash. Reflash firmware.

blackhawk said:
Meh then play with it... you know the drill.
Goggle it and look at other models/OS's that had the same issue as well. A lot of the same issues keep reoccurring so this tactic is helpful with newer models too.
Either it's settings, the load got screwed up or it's hardware maybe the port. Worse case... a mobo failure.
Try it in safe mode.
I probably do a factory reset* especially if it's an old load. If that fixes it but the issue returns latter, it's a setting or 3rd party app causing it.
*if it persists after a factory reset it's possible the firmware version is the problem or the firmware got corrupted during the flash. Reflash firmware.
Click to expand...
Click to collapse
Thank you. I'll start with safe mode and go from there. I appreciate your response.

It's frustrating. Find a usable work around for the time being if you can.
Most times the solution is staring you in the face, step back and rethink it. When did it start? What was done before it started?
Try clearing the data in the Android Setup apk (Android Setup com.google.android.setupwizard Android).
Use a 3rd party app like Package Disabler PD MDM to clear it as doing it in Settings leaves a Null* (presumably) and can't fix it sometimes. I know this particular app (PD MDM) works because I had it happen to me with a USB popup issue a while back.
Clearing Android Setup apk data completely resolved it. If you see Android Setup as a cache app it is the culprit; normally it never runs except during initial setup.
*when data is reported as zero, Nulls are apperantly not reported but still there screwing things up.

Related

[Q] Trouble connecting with usb to computer

First of all, my wife and I have the same phones, both stock infuse, bought the same day. I can connect her's to computer via usb and computer immediately will recognize it as an additional drive, including the sd card as another. I am able to do anything I want with it (with or without debugging enabled). So drivers and everything else is ok. When I plug mine in, (same cable, same port), it only charges and does not even acknowledge it is there, even in device manager, not there, with or without debugging enabled). I have disabled my Lookout and AVG. Any suggestions on changing any of the setting on the phone that I could have tinkered with and not realized it? Both are stock unrooted phones. I called ATT who advised to do a master reset. I would really like to try about anything else first. Any help appreciated. Thanks.
emrmcrn said:
First of all, my wife and I have the same phones, both stock infuse, bought the same day. I can connect her's to computer via usb and computer immediately will recognize it as an additional drive, including the sd card as another. I am able to do anything I want with it (with or without debugging enabled). So drivers and everything else is ok. When I plug mine in, (same cable, same port), it only charges and does not even acknowledge it is there, even in device manager, not there, with or without debugging enabled). I have disabled my Lookout and AVG. Any suggestions on changing any of the setting on the phone that I could have tinkered with and not realized it? Both are stock unrooted phones. I called ATT who advised to do a master reset. I would really like to try about anything else first. Any help appreciated. Thanks.
Click to expand...
Click to collapse
Is everything on the two phones the same?
Is there an app that you are running that did something to USB recognition?
Sometime a simple reboot may clear the issue. I did not see you listed that.
Have you tried taking our a microSD and reboot to see if that fixes the problem?
You can also boot into Samsung 3e recovery (see my sig link) and clear just the cache, then reboot.
Obviously, if you do a master reset, take off your photos and important data by copying then using my files to a microsd and take it out before the reset. Reseting in the phone will erase everything.
I think yours may be a hardware issue though, try brushing the USB contact with a toothbrush or some sort of minimal rubbing alcohol
If nothing works, i think you'll be getting a new phone
I do have some extra apps that she doesn't, handcent, flashlight, scanner radio slacker, soundhound, and a few more, but nothing that should affect the usb. I have tried rebooting with and without sd card. Even tried to reboot while holding in vol up and down button at same time and cleared cache that way then rebooted. I searched for Samsung 3e recovery, but didn't find anything that really relates to what I'm looking for. All I found dealt with if phone was rooted. I did try cleaning out the port also. So far, no luck. But thanks for the suggestions.
I am sure this will sound odd... but have you tried it on another PC? It may be a recognition issue with the device drivers and the phone that isn't working.
Just my 2ยข

Wont connect to PC and other odd issues

Ok, so I have been having a very annoying issue(s) recently with my SGH-I997R, ( Firmware version 2.3.3, Baseband version I997RUXKG3, Kernel Ver: 2.6.32.7-I997RUXKG3-CL366622)
This all started out of the blue about a month ago, I used to connect my phone to my PC all the time for transferring items via Mass Storage, and then on day when I went to connect it to my same PC, I got " USB Device Not Recognized". It will charge the phone but will not connect or show any option on the phone to connect. I have tried 2 Samsung cables and a generic Micro USB cable, No change. I tried connecting to my laptop, same issue. I re-downloaded the drivers from Samsung onto both my usual PC and Laptop, no change. Very very frustrating.
Other issues, I don't know if their related in any way but they all started at the same time.
a) if I place my phone in airplane mode i cannot get it out of that mode without rebooting my phone
b) if i shut my phone down (doesn't matter if battery shows 100% or 25%) I cannot get the phone to turn on without plugging in the USB cable.
c) When I leave my phone charging overnight and look at it in the morning, battery shows 100% but also shows "NO SERVICE" , I reboot the phone with the cable still connected, service restored.
IF anyone has had these issues Especially the connecting to PC issue, Please PLEASE help. I am going nuts. And of course this all happened 3 months after the warranty expired, so both Rogers and Samsung will not help without $$$$$.
have you tried to back up your data, take out any micro sd card and perform a factory reset under /settings/privacy/reset ?
or open it up and look inside for any problems like corrosion?
qkster said:
have you tried to back up your data, take out any micro sd card and perform a factory reset under /settings/privacy/reset ?
or open it up and look inside for any problems like corrosion?
Click to expand...
Click to collapse
I have done a factory reset numerous times from both the /settings/privacy/reset, and from booting it up holding the volume keys and doing a reset that way.
And I have had my phone since day one in a Ballistic Hard Core Series case, I take it out once a week to ensure its clean and free of dust/moisture (I work in construction so I try to keep it a clean as possible.) and my phone still looks like its brand new.
Thanks for the response though,
Update:
So just as an update for anyone out there who may be able to assist me with this very annoying issue, the Phone is still doing the same things, and since the last post i've also replaced the battery to see if for some strange reason it might help.
But to no avail.
As well I dont think i mentioned that this phone is rooted. I want to try unrooting it to see if that will correct the issue, but with not being able to connect the phone via usb to the computer, I have NO IDEA on how I can accomplish this. Any help???

Note 4 Bootloop - Softbrick

First, I will say that I have done an extensive amount of searching and reading about boot loops and issues with the Note 4 before posting this. After days of dead ends, I have to ask for help...
About a week ago (end of January 2017), I installed the Verizon security patch update for Android 6.0.1 for my Note 4 (SM-N910V): MMB29M.N910VVRS2CQA1. Everything was normal until this past Friday night, when I used a flashlight app (had been installed since I had the phone and used often) and it spun into a bootloop. Battery was at 20% at the time, and since I've had the phone, the battery quickly discharges below ~15%.
Situational Details:
Anyways, the bootloop goes all the way to the home screen, and often the touchscreen is active for a few seconds (varies) before it freezes for 5 seconds and continues the bootloop. It's worth noting that during the bootloop, the screen gets incrediby hot at a specific point: horizontally across from the power button and vertically below the light sensor.
Also, I'm able to access the recovery menu, download menu, and boot menu. Also, when a power cable is connected to the phone (with battery inside), the phone screen shows the empty charging battery symbol and then immediately turns on, without me having to press the power button. After that, the only way to actually power off the phone is to remove the battery or let it bootloop until it dies.
So far, I've tried the following without success:
-Wiping partition cache
-Factory data reset
-Flashing stock ROM with Odin. Though Odin recognized the device in the USB port and it accepted the ROM which I loaded it with, there was no activity from Odin to the phone once I clicked "Start". I'm using the original USB cable that came with the phone (the one that I charge it with), and the USB port is working fine.
-Using Kies3/Kies2.6/Smartswitch to revert back to factory stock ROM. Though Kies3 is allegedly the correct software, they all display an error message that my device is not supported, when I attach a USB cable to my laptop from my phone (regardless of USB port).
-When using Kies3 to try Tools > Firmware upgrade and Initialisation, Kies accepts "SM-N910V" as the model number, but it displays an error message that my S/N is incorrect, though I am copying and verifiying the IMEI from under the battery compartment (I also registered my phone with Samsung using this IMEI, so I know it's valid).
-Wiping partition cache 5x + Factory data reset 5x before rebooting
When in the recovery mode, the current android version MMB29M.N910VVRS2CQA1 is listed, which I find incredibly bizarre, since I thought it would have flashed to the stock ROM after a factory data reset. *shrug*
It's crossed my mind that the exceedingly hot temps may be causing the boot loop, but genuinely do not know if that's true or why it would become so hot in the first place. Either way, I just want to toss the idea out that maybe I have a hardware issue that's causing such overheating.
Anyways, at this point, I'm totally confused about what to do, especially since it's not totally bricked. Any/all help is greatly appreciated.
Anybody have any thoughts at all? I'm more and more open to the theory that it's overheating and causing a boot loop. When it's been sitting for a long time at room temperature, the screen remains at full brightness on the Verizon splash screen, and does so until it gets stupidly hot near the microSD / SIM slots... then it boots up for ~5-15 seconds, freezes for 5 seconds, and boot loops again.
I may try to thoroughly wrap my phone in plastic wrap and apply an ice pack before attempting to use it again. I find it hard to believe that the culprit is batteries since the issue happens with both batteries that I have (purchased separately at different times).
Ok, I had my Note 4 totally cold yesterday and booted it up normally. I discovered a few things while playing with it:
When the first reboot happened,the usual hot spot was hardly to room temperature. I tried this exact same test again this morning, with the same results... the hot spot was not even to room temperature when it froze and rebooting.
It's worth noting that I figured out the screen does not freeze if the display is constantly moving, regardless of phone temperature. For example, I normally try to do something/anything prior to the phone freezing and rebooting, like establish a file transfer type usb connection to my laptop, instead of the default 'charge' type connection. Well, to go through the settings menu and pick out the connection type, the screen will always hang for a split second as it loads the next set of menus. Normally, it would freeze at this point and reset. But today, I decided to click on the Apps button and oscillate my finger on the screen to flip between pages of apps... and it worked for several minutes straight.
I know my problem seems incredibly strange, but do any of these symptoms have any plausible explanation? I'd hate to think there is literally nothing that I do and that my $$$ Note 4 phone is now a brick.
1weirdtrick said:
First, I will say that I have done an extensive amount of searching and reading about boot loops and issues with the Note 4 before posting this. After days of dead ends, I have to ask for help...
About a week ago (end of January 2017), I installed the Verizon security patch update for Android 6.0.1 for my Note 4 (SM-N910V): MMB29M.N910VVRS2CQA1. Everything was normal until this past Friday night, when I used a flashlight app (had been installed since I had the phone and used often) and it spun into a bootloop. Battery was at 20% at the time, and since I've had the phone, the battery quickly discharges below ~15%.
Situational Details:
Anyways, the bootloop goes all the way to the home screen, and often the touchscreen is active for a few seconds (varies) before it freezes for 5 seconds and continues the bootloop. It's worth noting that during the bootloop, the screen gets incrediby hot at a specific point: horizontally across from the power button and vertically below the light sensor.
Also, I'm able to access the recovery menu, download menu, and boot menu. Also, when a power cable is connected to the phone (with battery inside), the phone screen shows the empty charging battery symbol and then immediately turns on, without me having to press the power button. After that, the only way to actually power off the phone is to remove the battery or let it bootloop until it dies.
So far, I've tried the following without success:
-Wiping partition cache
-Factory data reset
-Flashing stock ROM with Odin. Though Odin recognized the device in the USB port and it accepted the ROM which I loaded it with, there was no activity from Odin to the phone once I clicked "Start". I'm using the original USB cable that came with the phone (the one that I charge it with), and the USB port is working fine.
-Using Kies3/Kies2.6/Smartswitch to revert back to factory stock ROM. Though Kies3 is allegedly the correct software, they all display an error message that my device is not supported, when I attach a USB cable to my laptop from my phone (regardless of USB port).
-When using Kies3 to try Tools > Firmware upgrade and Initialisation, Kies accepts "SM-N910V" as the model number, but it displays an error message that my S/N is incorrect, though I am copying and verifiying the IMEI from under the battery compartment (I also registered my phone with Samsung using this IMEI, so I know it's valid).
-Wiping partition cache 5x + Factory data reset 5x before rebooting
When in the recovery mode, the current android version MMB29M.N910VVRS2CQA1 is listed, which I find incredibly bizarre, since I thought it would have flashed to the stock ROM after a factory data reset. *shrug*
It's crossed my mind that the exceedingly hot temps may be causing the boot loop, but genuinely do not know if that's true or why it would become so hot in the first place. Either way, I just want to toss the idea out that maybe I have a hardware issue that's causing such overheating.
Anyways, at this point, I'm totally confused about what to do, especially since it's not totally bricked. Any/all help is greatly appreciated.
Click to expand...
Click to collapse
Do you have USB debugging turned on? Do you have all of the USB drivers for Samsung phones installed? Are you using the stock USB cable when you use Odin?
If you can't get Odin to flash your firmware(it has to be the same version you have or newer, it can't be older), then you may have a hardware issue that is a result of the excess heat you mentioned.
Sent from my SM-S903VL using Tapatalk
Droidriven said:
Do you have USB debugging turned on? Do you have all of the USB drivers for Samsung phones installed? Are you using the stock USB cable when you use Odin?
If you can't get Odin to flash your firmware(it has to be the same version you have or newer, it can't be older), then you may have a hardware issue that is a result of the excess heat you mentioned.
Sent from my SM-S903VL using Tapatalk
Click to expand...
Click to collapse
I didn't have USB debugging turned on before. I turned it on (under developer options... which I barely have time to access before it restarts), but now both my laptop and desktop won't recognize the device via any USB port. I do have the USB drivers for Samsung phones installed and have re-installed them a few times, to be safe. Also, I am only using the stock USB cable when doing any of these things.
1weirdtrick said:
I didn't have USB debugging turned on before. I turned it on (under developer options... which I barely have time to access before it restarts), but now both my laptop and desktop won't recognize the device via any USB port. I do have the USB drivers for Samsung phones installed and have re-installed them a few times, to be safe. Also, I am only using the stock USB cable when doing any of these things.
Click to expand...
Click to collapse
Does the device show in device manager? What is it labelled as in device manager?
Sent from my SM-S903VL using Tapatalk
Droidriven said:
Does the device show in device manager? What is it labelled as in device manager?
Sent from my SM-S903VL using Tapatalk
Click to expand...
Click to collapse
Assuming you mean the device manager in Windows, it's only showing as "Unknown USB Device (Device Descriptor Request Failed)".
Two new interesting notes:
When I enter Maintenance Boot Mode (Down Volume + Power to boot) and select USB Debug Mode, it now just performs a normal reboot. I can't recall for certain if this was any different in the past.
When I have the ability to access Developer options, I can definitely see that USB debugging is checked. Also, when I select 'USB configuration', 'charging' is pre-selected by default. When "MTP" (media transfer protocol) is selected, the developer mode menu still displays the value as 'charging', even though subsequently accessing the 'USB configuration' sub-menu shows that MTP is selected. Weird.
1weirdtrick said:
Assuming you mean the device manager in Windows, it's only showing as "Unknown USB Device (Device Descriptor Request Failed)".
Two new interesting notes:
When I enter Maintenance Boot Mode (Down Volume + Power to boot) and select USB Debug Mode, it now just performs a normal reboot. I can't recall for certain if this was any different in the past.
When I have the ability to access Developer options, I can definitely see that USB debugging is checked. Also, when I select 'USB configuration', 'charging' is pre-selected by default. When "MTP" (media transfer protocol) is selected, the developer mode menu still displays the value as 'charging', even though subsequently accessing the 'USB configuration' sub-menu shows that MTP is selected. Weird.
Click to expand...
Click to collapse
Have you tried booting to safe mode, if it boots to safe mode then it's a user app or a user app update that is causing your bootloop. In safe mode you can uninstall whatever app or app update caused it.
Sent from my SM-S903VL using Tapatalk
Droidriven said:
Have you tried booting to safe mode, if it boots to safe mode then it's a user app or a user app update that is causing your bootloop. In safe mode you can uninstall whatever app or app update caused it.
Sent from my SM-S903VL using Tapatalk
Click to expand...
Click to collapse
Yeah, I thought about that, too. I've tried safe mode even after factory resets + cache wipes and it still boot loops. ("Safe mode" does indeed display in the bottom left of the display/GUI) Good thoughts, though.
1weirdtrick said:
Yeah, I thought about that, too. I've tried safe mode even after factory resets + cache wipes and it still boot loops. ("Safe mode" does indeed display in the bottom left of the display/GUI) Good thoughts, though.
Click to expand...
Click to collapse
Starting to sound like a hardware issue.
Sent from my SM-S903VL using Tapatalk

Samsung J7 Prime G610M - FAP Lock + weird usb problem - Urgent

So, something very weird started happening to my phone. Out of nowhere, about 7 hours ago, it would stop charging whenever it was on, charging only when it was off and connected to my laptop. However, I thought it was just something wrong in the dev options, and I went to change whatever was the USB option to "charge phone". With this, I did accidentally forgot to activate the OEM option, and had to reboot not long after. You can probably see where this is going now.
Now I have a phone that bootloops on the FAP Lock message, and whenever I go to download mode to fix it, my PC just doesn't recognize the Phone. I've tried different USB cables, all of them are only recognized when the phone is shut down. So it isn't a hardware problem, because the Phone actually charges when it's shut down, and it isn't a problem with my USB ports or cables, as anything else I use with it works fine. And the worst part is, I need this phone today for a serious bank matter, and I can't afford to lose any data on it either, there's some very personal important stuff from yesterday that wasn't backed up yet. And keep in mind that paying for it to be fixed is the last option for me, as I can't afford it (besides, I fear they might end up getting the phone in factory reset mode, and I can't lose that data as I said).
Any kind of suggestions on how to get either the PC to recognize the phone, or flashing in a different way that doesn't need the PC to recognize the device? Thanks in advance.
Edit: Whenever I try to connect the phone via USB, it doesn't even make the Windows "USB connected" sound, it's just like it isn't there at all. One time, I got it to show, but it was as a "unrecognized usb device", and I haven't been able to replicate it yet.

Disconnect from computer and asks for permission again

So, I have been having this issue of trying to connect my phone to my pc to transfer files (pictures and whatnot). I'll connect and the phone will ask permission to connect, I Grant permission, start to go through folders, and then the window closes and the phone asks permission again. It's only my phone that does it. I can connect any other phone (I have several s7-s8 actives and s5-s9's) and there's no issue, the a71 5g is a fail though. Anyone else have any issues like this?
Welcome to XDA Enjoy
Use a known good cable.
Inspect port connector for damage or dust.
Open Developer options and check what the default USB settings are.
Try a different computer port.
Try opening directly in Disk Management.
Thanks!! Done all of that except disk management.. Never even crossed my mind to try that.. hahahaah, I'll let you know if that works!!
satedeus said:
Thanks!! Done all of that except disk management.. Never even crossed my mind to try that.. hahahaah, I'll let you know if that works!!
Click to expand...
Click to collapse
I always use that method.
Check Event Viewer for error reports. It can be very helpful when troubleshooting.
The Windows driver may be the issue too; try updating or rolling it back.
Something is misconfigured it sounds like.
Fun times... play with it, you'll find it.
Totally worked. At first my phone wasn't registering so I went into diskpart. Once it registered there I found it in disk management. I think my ADB corrupted and messed with my drivers. Whatever happened it's working now and I'm downloading all new updates.. cheers!!
Cool.
I never used diskpart. I simply use the scan disks command in disk management otherwise it may not show.
If I let Window automatically connect that's when the trouble starts
Kies was always another failure waiting to happen as well.

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