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Galaxy S6 won't connect to PC or MAC

Hi,
I have a problem with my Samsung Galaxy S6 - SM-G920F, it isn't recognized anymore by my PC. This happened after I made a ".nomedia" file to hide some gallery files. I deleted the file but the phone isn't recognized by any PC. When i connect the phone, it is only charging.
I installed TWRP for using the mount feature - not worked.
I installed the latest USB drivers from Samsung - not worked.
I installed Samsung Kies3 - not worked.
I installed Smart Switch - not worked.
I dialed *#0808#, turned MTP - ADB - not worked.
I installed through Odin a stock 6.0.1 Rom from SamMobile - not worked.
I turned on/off the USB debugging - not worked.
I used more than 3 USB cables - not worked.
Device Manager isn't recognizing my phone.
McBook Air isn't recognizing my phone.
The phone is not rooted and it has 4 moths since i bought this phone.
Is there something that I missed on my attempt to solve this problem?
Thank you for your time.

Same problem here, really can't figure this one out.. Tried all of the above too
---------- Post added at 10:32 AM ---------- Previous post was at 10:31 AM ----------
Curious, in device manager under bluetooth it lists my Samsung s6 edge with a generic driver from Microsoft and I can't change it... Misidentified device? Do you have the same?

I assume your phone is unlocked/opened from lock screen when you are connecting it to your pc? ^^
- Renolz

Fully unlocked, & just no notifications :/

renolz said:
I assume your phone is unlocked/opened from lock screen when you are connecting it to your pc? ^^
- Renolz
Click to expand...
Click to collapse
Yes it is, but still not working

moorie said:
Same problem here, really can't figure this one out.. Tried all of the above too
---------- Post added at 10:32 AM ---------- Previous post was at 10:31 AM ----------
Curious, in device manager under bluetooth it lists my Samsung s6 edge with a generic driver from Microsoft and I can't change it... Misidentified device? Do you have the same?
Click to expand...
Click to collapse
My phone isn't seen anywhere... not even in Device Manager

+#0808# is code for usb, you can try dial it (after last # it will run or not, depending on rom), or you can download Shorcut master from Playstore and try run it from secret codes inside app.
It has option to run it from dialer, or with SU if you are rooted, if you manage to run it, set AP and MTP+ADB to see phone as disk in windows, this helped me, hope it will help you.

It is the USB cable I had the same problem and changed the cable twice

Is it fast charging? Mine won't connect on any PC and also won't fast charge. I guess it's a damaged usb port..............

dedei said:
Is it fast charging? Mine won't connect on any PC and also won't fast charge. I guess it's a damaged usb port..............
Click to expand...
Click to collapse
I have this same problem. My phone is not recognized by computer or any program. I was trying update TWRP and now i have samsung logo loop. Before i was updating i have sometimes problem with fast charging and computer dont saw mass storage when i connected phone
I changed completely module with usb in S6 but this dont resolve my problem. I used 3 different cable and changed USB port. I tried with windows XP and win 10.
any suggestions what i can do to bring to alive my S6?

Same problem here, started after updating to Marshmallow.

Exactly same problem with my s6 after 6.0.1 update! Sometimes phone will charge but it wont connect to pc/otg wont work but when i play around with MTP+ADB in *#0808#, s6 wont charge but instead it will be recognised by pc that usb connected not recognised and otg will work!!!!! always vice versa. right now my battery is empty and still wont charge!
---------- Post added at 08:13 AM ---------- Previous post was at 08:11 AM ----------
And looks like there is always a volt output through usb port and that time phone wont receive any charge

Really problematic.. I tried everything cables, drivers, different PC's and nothing.. tried my girlfriends S6 and worked instantly on my PC.
Only happened after official Marshmallow update,grounds for a return?

moorie said:
Really problematic.. I tried everything cables, drivers, different PC's and nothing.. tried my girlfriends S6 and worked instantly on my PC.
Only happened after official Marshmallow update,grounds for a return?
Click to expand...
Click to collapse
1. Power off your device (if it isnt already).
2. Connect to pc in recovery / download mode (just to trigger a response from pc /phone hopefully.
Do you know how to do this? If so, go ahead and proceed and see if the pc recognises your device in those modes
Let me know how that goes
---------- Post added at 03:09 AM ---------- Previous post was at 03:03 AM ----------
popek9 said:
I have this same problem. My phone is not recognized by computer or any program. I was trying update TWRP and now i have samsung logo loop. Before i was updating i have sometimes problem with fast charging and computer dont saw mass storage when i connected phone
I changed completely module with usb in S6 but this dont resolve my problem. I used 3 different cable and changed USB port. I tried with windows XP and win 10.
any suggestions what i can do to bring to alive my S6?
Click to expand...
Click to collapse
Its not a usb port problem

Here are the usb drivers for those having issues. http://developer.samsung.com/technical-doc/view.do?v=T000000117
-Uninstall any previous driver relating to the phone (Also delete package if given the option). Disable windows Update aswell (Win10 Users). Also try install PDA+ from app store and http://pdanet.co/ to see if drivers will be correctly used.
-Make sure its a data cable, not a charge cable as only + and Negative wires are used and there is no way you can use a charge cable as a data cable.
-Connect phone and look for any pop up on screen, if anything pop up click it and see if it has anything to do with MTP or PTP.
-Still having trouble, reset firmware back to stock see how that goes, If not try boot into recovery and follow next step.
-- Once in recovery see if you can ADB push a rom over or a file, if that works then firmware is dodgy and something is missing. (Would recommend Android Tool kit to use this).
-- You could also try to install ADB insecure app ( Find it on XDA forums) and enable USB debugging and see if that will help
If you still can access file via usb when the phone is booted i would say to flash back to stock rom with ODIN and send it in for repairs. (Thats if you can get download USB mode to work)

Visited Samsung store, they said the USB port has failed but KNOX has been tripped some how, genuinely never rooted this phone or even attempted it but they showed me the warranty void status so basically even though they accept it's a hardware fault they won't fix it.
Sent from my (broken) SM-G925F using XDA Free mobile app

Quick answer for how I fixed this (sort of):
Go to "Settings" > "Developer Options" > "USB configuration". My phone indicated "charging". I selected MTP and my phone connected.
Why "sort of" - it reverts to "charging" every time that I connect the phone. I have to do the above all over again.
full history:
Same problem here. S6 on verizon network new in September 2015. Always connected without a problem to whatever computer that I have tried (linux & windows). The problem started after the recent complete software update on 2016-04-02. The phone is defaulting to "charging" and not trying to connect.
Go to "Settings" > "Developer Options" > "USB configuration". If "charging" is active, you know what your problem is. Select MTP (or whatever you need). The phone now connects and I can browse my files from my computer. The remaining problem, is that it reverts to "charging" every time that I connect the phone. Before the code update, there used to be a dialog asking me what I wanted to do (charge, data transfer, etc - sorry, don't remember exact options or how it was worded).
So, nothing to do with drivers missing on my PC. Nothing to do with need to install some other package. Nothing to do with a bad cable. Code was broken on a software update. (Or if you don't consider this to be broken, it was a poor software design decision).
!!! A CODE FIX IS NEEDED !!!

Difficult USB connexion to PC and USB OTG does not work...

First issue : when I want to connect my Z5 to my PC (windows 10), it never work at the first time, I must do several attempts (usually it works after about 5 attemps...). I'm on Marshmallow, but I had the same issue with lollipop.
Second issue : I can't connect any USB key by OTG to my Z5, I go to settings to activate USB detection but it never works...
Any suggestion that could help ??
Thanks in advance.
My devive:
E6653
Bootloader unlocked - rooted
Stock rom 6.0.1
Androplus kernel v25

No suggestion ??

nreuge said:
No suggestion ??
Click to expand...
Click to collapse
i cant help with the second issue, but as for the first one i had the same on windows 7. my solution was, to change usb-configuration in developer options to charge only, restart pc and phone, and after phone restart i simply changed back to mtp.
but since you are running win10, it might be an unauthorized driver issue aswell

G920F, USB MTP, FASTBOOT not working anymore.

Hi all,
So I have a strange problem, a while back I discovered that I can't connect my S6 to my computer and or other computers, whatever usb cable I use the device is not detected at all. and only charging works.
I already tried more USB cables and validated they work with other devices, I also discovered the USB is not detected in fastboot mode, so I can't flash any images anymore over USB.
I also discovered that I might have flashed a wrong stock rom a few months back and I never tried to connect it to the USB in the meanwhile, when I trace the baseband version it says it's Asian..:crying: And this device is a dutch PHN. The device has ADB working over WIFI and root enabled, it also has TWRP installed and even there MTP is not working!
However i'm afraid there is no way I can flash a stock rom back to the device without a working fastboot, unless there are flashable zips.
What do you guys think?
- MTP does not work
- Fastboot works but USB is not detected (odin, device manager etc).. with all kinds of cables.
- ADB Shell + Root Works (Only over wifi)
- I got a full backup of all partitons, created it with TWRP.
- It's stull running android 5.1.1
Best Regards,
Toetje

TerrorToetje said:
Hi all,
So I have a strange problem, a while back I discovered that I can't connect my S6 to my computer and or other computers, whatever usb cable I use the device is not detected at all. and only charging works.
I already tried more USB cables and validated they work with other devices, I also discovered the USB is not detected in fastboot mode, so I can't flash any images anymore over USB.
I also discovered that I might have flashed a wrong stock rom a few months back and I never tried to connect it to the USB in the meanwhile, when I trace the baseband version it says it's Asian..:crying: And this device is a dutch PHN. The device has ADB working over WIFI and root enabled, it also has TWRP installed and even there MTP is not working!
However i'm afraid there is no way I can flash a stock rom back to the device without a working fastboot, unless there are flashable zips.
What do you guys think?
- MTP does not work
- Fastboot works but USB is not detected (odin, device manager etc).. with all kinds of cables.
- ADB Shell + Root Works (Only over wifi)
- I got a full backup of all partitons, created it with TWRP.
- It's stull running android 5.1.1
Best Regards,
Toetje
Click to expand...
Click to collapse
I can´t belive it, someone who has the same problem then me. A little wierd is that I got 2 phones here.... Got my S6 which I´m using atm and some days ago a friend gave me a A5. Actually the A5 has exactly the same problem and one more problem is, that the "Home Button" of the phone is not working. No chance to root it at all.
It was like this.... I came back home with the A5 and first I thought about was rooting it. Restarted and tryed to go into "Recovery Mode" which wasn´t working, same as going into "Download Mode". So my first thought was that some of the buttons arn´t working. I was right, it was the home button which is without any function. My next idea was rooting over Laptop with Odin. Enabled USB Debbuging, connected a data cable..... and usb connection was not working... only charging!
After like a minute of trying and no success I wen´t eat first. When I came back i tryed again and USB Debbuging asked me to accept the Laptop. (Till now I didn´t thought about that it could be my first and my last time I will have a working USB connection.)
I wen´t into "Recovery Mode" thought about restarting cuz I wanted to go into "Download Mode". So I restarted and that was FATAL.... since then I had no chance anymore till yet to get a working USB connection. No matter which PC, Laptop, USB / Data-Cabel. And since the "Home Button" is not working, I don´t even know how to get Root.
Right now I´m asking myself if it could be a Firmware related problem?! I mean, when my friend gave me the phone there wasn´t the newest update installed on it so I just updated it. It´s a A500FU running stock Android 6.0.1 newest DBT Firmware..... and also I´m not able to change it without having a working USB connection.
Greets!

d3nni said:
I can´t belive it, someone who has the same problem then me. A little wierd is that I got 2 phones here.... Got my S6 which I´m using atm and some days ago a friend gave me a A5. Actually the A5 has exactly the same problem and one more problem is, that the "Home Button" of the phone is not working. No chance to root it at all.
It was like this.... I came back home with the A5 and first I thought about was rooting it. Restarted and tryed to go into "Recovery Mode" which wasn´t working, same as going into "Download Mode". So my first thought was that some of the buttons arn´t working. I was right, it was the home button which is without any function. My next idea was rooting over Laptop with Odin. Enabled USB Debbuging, connected a data cable..... and usb connection was not working... only charging!
After like a minute of trying and no success I wen´t eat first. When I came back i tryed again and USB Debbuging asked me to accept the Laptop. (Till now I didn´t thought about that it could be my first and my last time I will have a working USB connection.)
I wen´t into "Recovery Mode" thought about restarting cuz I wanted to go into "Download Mode". So I restarted and that was FATAL.... since then I had no chance anymore till yet to get a working USB connection. No matter which PC, Laptop, USB / Data-Cabel. And since the "Home Button" is not working, I don´t even know how to get Root.
Right now I´m asking myself if it could be a Firmware related problem?! I mean, when my friend gave me the phone there wasn´t the newest update installed on it so I just updated it. It´s a A500FU running stock Android 6.0.1 newest DBT Firmware..... and also I´m not able to change it without having a working USB connection.
Greets!
Click to expand...
Click to collapse
I ordered a new USB port board, will let you know the results!

Any results after changing the usb port?

Did fast charge still work for you? And this replacing the USB port work? I think this is related to a broken USB ic. For me replacing the USB port didn't help

Sometimes it's a bad charging port and / or liquid damage to the charging port.
If your home button clicks but does not work it could be liquid damage near the home button. Same goes for power and volume buttons.
I just fixed a S6 edge plus yesterday power button not working, liquid damage all around power button area, fixed burnt components and corroded pins.

udb debugging won't stay on

Title should say USB my fat fingers ! phone is completely stock no attempts to root. Enabled developer options fine. toggle the USB debugging switch. Get the Allow USB debugging? pop up. Click ok. Don't get any kind of debugging enabled notification. Restore default settings button is shown at the bottom of screen - i ignore this. Hit home or settings menu then go back to Developer options and the USB debugging switch is toggled off again. I tried restarting, developer options has stayed visible in settings but still can't get USB debugging to stick. PLEASE any suggestions what i'm missing?? Thanks

I also have the same problem with my mate 9. Allow usb debugging setting automatically toggles off as soon as I leave the settings menu.

Hi boys..
reasonable for this behaviour are the developer mode switches 1.) "Allow ADB debugging in charge only mode" and 2.) "Always prompt when connecting to USB"!!!
If switch 1.) is not set to "on", and switch 2.) is not set to "off", the switch "debugging allowed" would be cancelled every time you leave this menu!
So it does, what it have to do! Cancelling debug mode if phone would be connected to any other device without transferring data (if only charged). Easy, or not?
(see signature 1+2!)

hi man
i have a problem
my phone is huawei p40 pro
how to fix usb c port of the phone not function only charging , no fastboot ,no mtp ,no usb debugging ,no hdb
this is what i did
at the first usb c works fine
untill i did downgraded from version 11.0.0.190(c185R3) to version EMUI 11.0.0.153(c185R3)
i used hisuite proxy method and i got firmwares from https://www.firmfinder.ml/
after phone bootup 11.0.0.153 firmware , it seems usb c port disabled and just charging works
even i couldn't toggle usb debugging and change usb mode to MTP
after that i again downgraded to 10.1.0.114(c185R3) and nothing change . still usb c disabled
so i couldn't connect my phone to usb , and even i couldn't use usb otg
so i decided to use my phone itself's online update. i run updating first to 10.1.0.183 and nothing changed
again updated with itself's online update. update to 11.0.0.153 and still nothing changed
finaly the last firmware update. i updated with itself's online update to 11.0.0.195 . and see usb c work , even usb otg , and usb debugging and MTP , all works perfect
can you explain what happend on my phone and why usb don't work when i use hisuite proxy method ?
i did it again and again , all same results
It seems that the official update with the phone itself ( without pc ) is the only way to solve the problem

today some one tells me another way ,
can anyone test this way?
firlando said:
Hi there,
Huawei July Patch 2021 close all posibility to downgrade the FIRMWARE, it can be done with Hisuite Proxy but you have to choose the correct FIRMWARE and suitable to your Phone region. Once it done you can fix the "DISABLE USB" by doing OTA update to latest FIRMWARE to make it works.
When you choose the wrong cust/preload/mainFW your phone will be locked with that current FIRMWARE with "DISABLE USB" forever, you can solve this by searching the correct FIRMWARE and flash it using NMCARD the FIRMWARE should be a Higher than your Current FIRMWARE INSTALLED. after all done you can get OTA update and do OTA Update to latest FIRMWARE to make USB WORK.
Please be NOTED : Testpoin Not Working with latest July 2021 Firmware Patch so Huawei Block any downgrade posibility
I found 2 Brand USB Thumbdrive which is work with "DISABLE USB" you can do such Dload or restore Lzplay to instal GMS before update with OTA UPDATE. Here I attached the USB Thumb Drive.
Click to expand...
Click to collapse
Phone doesnt recognise usb.
Please i need help fast. Im going away tomorrow and i need my phone. I had gms successfully installed earlier today, but i accidentally deleted something and it stopped working, so i factory reset multiple times, even upgraded to emui 11 but...
forum.xda-developers.com

HELP! Can't connect to PC

Hi guys, i'm getting this problem and cant connect to pc and i think i've tried it all.
when i connect my phone to the PC, it stars charging but my pc doesn't recognize the device, and my phone doesn't show the notification to make it file transfer.
Could it be a computer issue?
it seems not, i've uninstalled and installed drivers (ADB and Fastboot, oneplus drivers, google drivers) and the problem persist, and even try it on another computer and its the same, the phone does not appear even on Device Manager.
Could it be the Cable?
I don't think so, i'm using the original oneplus cable, it use to work really well before, and i have even connect other phone with the same cable and the other phone is recognize by the computer, so it''s not a cable issue... but I still when to a Tech-store and try other USB-C cables with their computer but my issue still persist (phone isn't recognize, just charge).
Could it be a phone software issue?
Maybe? but i discover this issue 3 weeks ago and a i was on EVOX rom and i thought it would be solved flashing another rom, and i CLEAN FLASH Resurrection Remix Rom, but then the problem was still there!
cant connect even on FASTBOOT MODE...
BTW, before installing RR, i Installed OOS 10.3.4, and still my computer doesnt recognize the phone, YES i have enabled developer options and USB debugging is enabled, and USB PREFERENCES to File transfer, but its not helping me, the "usb for" option its all grayed out and cant change that.
Right now i'm stuck on a RR build without Gapps, and i lost ROOT and RECOVERY, and as you may think, i cant install any of them because i cant connect to my pc, so i'm in a pretty difficult situation here hehe, could you please help me out?

This helped me. Hope it works for you too
I can't paste the link but search "how to get your Android device to show up in file explorer" by how to geek.

Didn't work
xnruaa said:
I can't paste the link but search "how to get your Android device to show up in file explorer" by how to geek.
Click to expand...
Click to collapse
Thanks for your reply, but this didn't work because my device isn't shown on device & printers, or anywhere as far as i checked...

PROBLEM SOLVED.
I think this is the silliest solution I've ever seen, it was just DUST, i clean my USB-C PORT (with a mask xD) and then pluggin, AND VOILA, it worked!!! so keep your ports clean everyone