Develop Bugs

[Q] S4 mini not connecting to computer, no USB settings?

Okay so I want to manually update to 4.4 (I have the normal 4.2.2 for this model). So first I connect my phone to my laptop to create a backup just in case something goes wrong. And SURPRISE! USB Device Not Recognized. Tried changing the port, the wire, restarting the phone, the laptop, no change. The USB notification is also not showing on the phone, it just sees it as regular charging.
I never had this problem before... I even used USB debugging several times. I thought maybe somehow the settings changed and it's no longer set to MTP. So I go to my phone's settings and can't find the USB settings to check. Looked it up online, they are supposed to be under storage when I press the menu button. I press it and nothing happens, and the USB connection settings are nowhere to be found.
Any ideas?

Have you tried to install your phone's USB driver in your computer?
Link: http://androidxda.com/download-samsung-usb-drivers

SakoDaemon said:
Okay so I want to manually update to 4.4 (I have the normal 4.2.2 for this model). So first I connect my phone to my laptop to create a backup just in case something goes wrong. And SURPRISE! USB Device Not Recognized. ... Any ideas?
Click to expand...
Click to collapse
1. Turn on USB debugging
2. Upgrade to the newest version of Kies
3. Ensure it connects as MTP [media device] not PTP [camera]

[Q] S4 Mini does not recognise PC via USB anymore

Hello everyone,
when I tried to connect my Galaxy S4 Mini (LTE i9195, Stock KitKat, rooted) via USB to my computer today, nothing happend. I checked the drivers, they are all installed. But I can connect another S4 Mini (LTE) without any problems.
I noticed that my S4 Mini does not show the notification you usually get when you connect the phone via USB (the one where you can choose Camera or MTP) anymore. The other one, which works perfect, shows this notification in the notification bar. I am using the original Samsung cable, which was shipped with the phone.
Note: My phone still charges when I connect it to the PC but does not recognise the PC connection
My phone is rooted and I used an Autostart/Reciever Toggle program yesterday - is it possible that I accidentally deactivated a necessary service?
What I tried so far:
- Google (only found solutions for "PC doesnt recognise phone" and not vice versa)
- Reboot
- DalvikCache Reset
- Cache Reset
- turn on/off USB Debugging
- use different cable
- use different usb ports
- use the code *#8080# to change MTP (it was already set to MTP...)
#Edit: It is just as in this thread (but S4 Mini instead of S4):
http://forum.xda-developers.com/showthread.php?t=2627860
I don't wanna hard reset my phone... Does anyone have an idea?
Thank you

When connected tot PC go tot: settings - storage Then press the 3 dots (right on top)
And choose USB connections. See of the desired option is selected

_nicolas_ said:
When connected tot PC go tot: settings - applications. Then press the 3 dots (right on top)
And choose USB connections. See of the desired option is selected
Click to expand...
Click to collapse
Thanks for your answer, but I can't find what you mean I have seen a post where it says that I need to go to Settings -> Storage and hit the three dots there, but on my Samsung there are no 3 dots AND nothing happens when I press the menu button either... See: random-host.com/blogs/enable-media-device-mtp-usb-mode-android-44-kitkat-and-50-lollipop
Thanks!

(Okay I got it working now.)
After I tried everything I could imagine, I decided to Flash the Stock Rom again. But before I was going to flash the new ROM I did a nandroid backup with CWM of my current ROM + everything. After Full Wiping I decided to restore the backup I just did (the ROM is still downloading hehe...) and voila it works again! Why? I have no clue...
So just backup -> full wipe -> restore backup -> worked!
#Edit: Stopped working agin... But the computer successfully connected to the phone, installed the drivers and displayed the phone in the explorer. Note: this time (when it actually worked after the restore) it showed the MTP connection in the statusbar! But now it disappeard again and is not showing up anymore...

Have u enable developer option ?? Some phones needs to enable developer optiom to recognise the phone in pc.. to enable this go to setting /about phone n click in build number more than 7 times . And then go to developer optiongn then click in USB Debugging . Then ur pc will recognise the phone.. hope this help u !!

Thanks for your reply!
As stated in my thread I already enabled/disabled and reenabled USB Debugging, and USB Debugging requires Developer Options.
But thanks for trying to help!!
Is it possible that my USB port is broken? A new one only costs 5€ so I think I'll give it a try...

Hi ! Ive the same problem... Ive you try to change your Kernel ?

I'm currently running on CM 12 and it works. However, if the pc does not recognise the phone, try rebooting your computer and your phone (that often actually works).

Mh... Try to reboot in recovery and make a wipe data / factory reset.

Any new ideas how to resolve this issue?
Did all of the above plus factory reset, tried different drivers and changed phone's charging port.
Two other phones (a Samsung and a Sony) connect to this PC just fine.
Thanks in advance
LE: In download mode the PC sees it in Odin. I tried SilviuMik's different kernel variants (the phone is stock KitKat), but nothing happens. I had no problems with it connecting to PC until about 2-3 weeks ago.

S4 mini duos not detected by pc via usb cable

I bought in January s4 mini duos
At the beginning i was well without problem I plug it into my pc it is detected without problem I did all my transfer data without problem
I put a day the system to an official 4.4.2 via Odin and all is well detected without the problem
But last week it is no longer detected on pc via usb cable when I plug it will start charging but without any sign of detection of equipment or on phone or pc .
I test other cables , other pc and nothing changes and the problem persists.
Help me please

bicha2016 said:
I bought in January s4 mini duos
At the beginning i was well without problem I plug it into my pc it is detected without problem I did all my transfer data without problem
I put a day the system to an official 4.4.2 via Odin and all is well detected without the problem
But last week it is no longer detected on pc via usb cable when I plug it will start charging but without any sign of detection of equipment or on phone or pc .
I test other cables , other pc and nothing changes and the problem persists.
Help me please
Click to expand...
Click to collapse
Does it connect in download mode? (maybe also try change MTP etc) Different mode uses different USB drivers etc. Have read sometimes a USB port seems to become disabled in one mode but will work in other.
Make sure your USB driver is good. Are you using the same drivers from some "dodgy" website if so uninstall and just allow Windows to find drivers or get from samsung.
You may be able to enter the USB service menu and change settings by entering *#0808# in dialer then select MTP (or maybe *#7284# & set to PDA)
But connector/power board may have a problem

IronRoo said:
Does it connect in download mode? (maybe also try change MTP etc) Different mode uses different USB drivers etc. Have read sometimes a USB port seems to become disabled in one mode but will work in other.
Make sure your USB driver is good. Are you using the same drivers from some "dodgy" website if so uninstall and just allow Windows to find drivers or get from samsung.
You may be able to enter the USB service menu and change settings by entering *#0808# in dialer then select MTP (or maybe *#7284# & set to PDA)
But connector/power board may have a problem
Click to expand...
Click to collapse
same problem in download mode is not detected.
I changed drivers but the problem persists.
when I 'll branch pc displays a notification at the bottom next to the date indicates an unrecognized USB device.

bicha2016 said:
same problem in download mode is not detected.
I changed drivers but the problem persists.
when I 'll branch pc displays a notification at the bottom next to the date indicates an unrecognized USB device.
Click to expand...
Click to collapse
Turn phone off. Remove battery & SIM (though I think it's probably the battery that does the trick). Reassemble & your USB may be back if it's none of the other things and it's not hardware .......:fingers-crossed:
(If it doesn't work 1st time do it again but only reassemble after a minute or two to be certain all power is drained from caps etc.)

[Help] Problem connecting OP3 to computer in MTP mode

Hello everybody,
I received my OP3 yesterday and I'm quite happy with my phone, but I'm having an worrying problem with the USB connection. Indeed, I cannot seem to get the USB connection working in MTP mode. In fact, I cannot get anything else working than charging mode.
Things I already tried :
- Enabling USB debugging
- 3 different cables (OP2, OP3, no brand)
- Manually choosing MTP mode in developper options
- 2 different computers
Maybe the most worrying thing is that the Windows device manager doesn't see any device when I connect the phone, not even a device with an error...
I'm really starting to think this is a hardware problem
Please, HELP ! :crying:

Isayaa said:
Hello everybody,
I received my OP3 yesterday and I'm quite happy with my phone, but I'm having an worrying problem with the USB connection. Indeed, I cannot seem to get the USB connection working in MTP mode. In fact, I cannot get anything else working than charging mode.
Things I already tried :
- Enabling USB debugging
- 3 different cables (OP2, OP3, no brand)
- Manually choosing MTP mode in developper options
- 2 different computers
Maybe the most worrying thing is that the Windows device manager doesn't see any device when I connect the phone, not even a device with an error...
I'm really starting to think this is a hardware problem
Please, HELP ! :crying:
Click to expand...
Click to collapse
I had the same issue with my MXP and still have it with my OP. Just can't seem to get my pc to recognize them as storage devices.
A workaround I have found is to boot into twrp, then their recognized immediately and can be used as an external storage device.

I also got 'charging only' mode when I first connected OP3 to my laptop but after changing the settings at developer options I could do the file transfers and all.
I hope some of your privacy setting isn't messing up with it because AFAIK it shouldn't be a hardware problem.

I have the same issue.
---------- Post added at 05:22 AM ---------- Previous post was at 05:15 AM ----------
bruciebabie1963 said:
I have the same issue.
Click to expand...
Click to collapse
I turned off usb debugging and now my computer recognizes my device.

numbere said:
I had the same issue with my MXP and still have it with my OP. Just can't seem to get my pc to recognize them as storage devices.
A workaround I have found is to boot into twrp, then their recognized immediately and can be used as an external storage device.
Click to expand...
Click to collapse
Thing is I cannot unlock bootloader and install TWRP because the USB connection is needed for that
Beside, this is a 2 days old phone, I'm expecting it to work flawlessly...

Isayaa said:
Hello everybody,
I received my OP3 yesterday and I'm quite happy with my phone, but I'm having an worrying problem with the USB connection. Indeed, I cannot seem to get the USB connection working in MTP mode. In fact, I cannot get anything else working than charging mode.
Things I already tried :
- Enabling USB debugging
- 3 different cables (OP2, OP3, no brand)
- Manually choosing MTP mode in developper options
- 2 different computers
Maybe the most worrying thing is that the Windows device manager doesn't see any device when I connect the phone, not even a device with an error...
I'm really starting to think this is a hardware problem
Please, HELP ! :crying:
Click to expand...
Click to collapse
When you connect the phone, Marshmallow by default connects in charging mode.
- Swipe down and you will see USB for charging "Touch for more options"
- Select 'File Transfers'
Transfer files.

white43 said:
When you connect the phone, Marshmallow by default connects in charging mode.
- Swipe down and you will see USB for charging "Touch for more options"
- Select 'File Transfers'
Transfer files.
Click to expand...
Click to collapse
I don't get the pop-up, the phone really does not detect that it's connected to a computer.

Isayaa said:
I don't get the pop-up, the phone really does not detect that it's connected to a computer.
Click to expand...
Click to collapse
That sounds like a hardware problem.
I don't have developer USB debugging mode on or anything.

I have this issue with my op3. Just got it in the post today. My windows 10 pc bleeps when pugged in but does not load a drive. In device manager it shows up as the d drive but not in file explorer. Annoying!

My windows 7 (company laptop) recognised my phone first time and installed the drivers no problem. I had problems with my USB flash drive earlier today until I discovered the hidden enable OTG toggle.
Sent from my ONEPLUS A3003 using Tapatalk

Isayaa said:
Hello everybody,
I received my OP3 yesterday and I'm quite happy with my phone, but I'm having an worrying problem with the USB connection. Indeed, I cannot seem to get the USB connection working in MTP mode. In fact, I cannot get anything else working than charging mode.
Things I already tried :
- Enabling USB debugging
- 3 different cables (OP2, OP3, no brand)
- Manually choosing MTP mode in developper options
- 2 different computers
Maybe the most worrying thing is that the Windows device manager doesn't see any device when I connect the phone, not even a device with an error...
I'm really starting to think this is a hardware problem
Please, HELP ! :crying:
Click to expand...
Click to collapse
I had the same problem.
What I did to fix it was the following steps:
- Disable USB debugging in developer options
- Choose PTP mode in developer options
- Choose MTP mode in developer options
- And Done, my PC now recognize the phone in MTP mode

what i do to fix this
- disable OEM unlocking
- disable developer options
- plug USB (wait for drivers install)
- enable developer options
- enable USB debuging

Gah, having similar problems!
Have tried all the workarounds suggested here, but whenever I plug it in on MTP mode it just shows me the OnePlus Drivers CD Drive.
I have installed the drivers (multiple times) but Windows 10 just won't see the phone when I plug it on MTP mode, just shows me the Drivers CD Drive every single time.
It's recognised as PTP no problems, but no luck on MTP!
Any ideas?
(Unlocked, not yet rooted, on stock firmware)

op3
Hi, i have the same problem, has anyone found any solution for this? It's starting to get pretty irritating... :/

Are you sure youre choosing file transfer mode from the notification area where by default its selected as charging only.

Try this
Hi Guys,
Try halfway inserting the USB cable into your PC, I was having the same frustrating problem and noticed that did the trick for me.
Still trying to figure out why the connectors are not responding when the USB cable is fully inserted, I admit that this is my first device using USB Type-C.

strange
The problem is not getting any better, i simply cannot get windows to even recognise my phone in device manager. Tried it in adb and fastboot, also tried a hard reset but no solution.. I requested a repair from oneplus because i think it cannot be anything else than a hardware problem.

guys i found solution on op3 forum... it worked 4 me with win 10 enterprise... download and install update from here... https://support.microsoft.com/en-us/kb/3099229

This worked fo me: (i'm using Win10)
Device manager, and find "MTP device" then driver update, find on computer, and select MTP USB Composit Device. It works with enabled Debugging, OEM unlock is on too. :good:

white43 said:
When you connect the phone, Marshmallow by default connects in charging mode.
- Swipe down and you will see USB for charging "Touch for more options"
- Select 'File Transfers'
Transfer files.
Click to expand...
Click to collapse
Solved my problem

Phone only charges when connected to PC

As stated in the title, When I plug my phone into a computer, it only charges. The dropdown menu allowing you to select different options (MTP, only charge, etc) never appears.
Things I have tried :
- Cleaning out the USB charging port
- Multiple reboots (with airplane mode, without, with USB debugging on/off)
- Using different cables (2 of which I am sure can be used to transfer data as I've done it in the past)
- Different computers (My laptop has debian, desktop has windows 7. Also tried on a windows 10 computer)
- Updating firmware to 8.4.19 (recommended firmware for multiple ROMS)
- Dirty flashing to final Ressurection Remix release from a July nightly
- Searching google and crying
I would like to Format data and try another ROM, but without USB transfer and ADB sideload, my hands are kinda tied.
Anyone have any suggestions as to what I can try ? Part of me thinks its a software issue because the usb-c cables fit in so tightly and snug inside the port. In the mean time, I've ordered a new charging port from aliexpress. I'm hoping I don't have to open up my phone though.
Thank you for your suggestions !

LittleW0lf said:
As stated in the title, When I plug my phone into a computer, it only charges. The dropdown menu allowing you to select different options (MTP, only charge, etc) never appears.
Things I have tried :
- Cleaning out the USB charging port
- Multiple reboots (with airplane mode, without, with USB debugging on/off)
- Using different cables (2 of which I am sure can be used to transfer data as I've done it in the past)
- Different computers (My laptop has debian, desktop has windows 7. Also tried on a windows 10 computer)
- Updating firmware to 8.4.19 (recommended firmware for multiple ROMS)
- Dirty flashing to final Ressurection Remix release from a July nightly
- Searching google and crying
I would like to Format data and try another ROM, but without USB transfer and ADB sideload, my hands are kinda tied.
Anyone have any suggestions as to what I can try ? Part of me thinks its a software issue because the usb-c cables fit in so tightly and snug inside the port. In the mean time, I've ordered a new charging port from aliexpress. I'm hoping I don't have to open up my phone though.
Thank you for your suggestions !
Click to expand...
Click to collapse
Use an usb otg with a usb stick memory and see if your phone recognize it. I'm using otg to flash roms and firmware via TWRP.

mArIuS% said:
Use an usb otg with a usb stick memory and see if your phone recognize it. I'm using otg to flash roms and firmware via TWRP.
Click to expand...
Click to collapse
Thank you for the suggestion. I don't have one, but I suppose if I can find a cheap one it's worth a shot !
I also just realised I can plug in the little dongle and listen to music through wired headphones... Strange !

LittleW0lf said:
As stated in the title, When I plug my phone into a computer, it only charges. The dropdown menu allowing you to select different options (MTP, only charge, etc) never appears.
Things I have tried :
- Cleaning out the USB charging port
- Multiple reboots (with airplane mode, without, with USB debugging on/off)
- Using different cables (2 of which I am sure can be used to transfer data as I've done it in the past)
- Different computers (My laptop has debian, desktop has windows 7. Also tried on a windows 10 computer)
- Updating firmware to 8.4.19 (recommended firmware for multiple ROMS)
- Dirty flashing to final Ressurection Remix release from a July nightly
- Searching google and crying
I would like to Format data and try another ROM, but without USB transfer and ADB sideload, my hands are kinda tied.
Anyone have any suggestions as to what I can try ? Part of me thinks its a software issue because the usb-c cables fit in so tightly and snug inside the port. In the mean time, I've ordered a new charging port from aliexpress. I'm hoping I don't have to open up my phone though.
Thank you for your suggestions !
Click to expand...
Click to collapse
Even if you are inside TWRP/fastboot mode the computers don't recognize it?

xikz said:
Even if you are inside TWRP/fastboot mode the computers don't recognize it?
Click to expand...
Click to collapse
Nope, I can't see anything. It wasn't the case before, I used to transfer ROMS while twrp was loaded, no problem

So I just changed the physical piece (charging port) with a non-oem one, and nothing changed. Still charges, but won't connect to PC. I'm lost as to what I can now do

mArIuS% said:
Use an usb otg with a usb stick memory and see if your phone recognize it. I'm using otg to flash roms and firmware via TWRP.
Click to expand...
Click to collapse
Tried OTG, I only get the "USB supplying power to attached device" notification. You reckon if I "hide" a rom in the / folder or some other top level folder, I can go ahead and format data and wipe everything. I wouldn't delete the Rom in the process ?

LittleW0lf said:
Tried OTG, I only get the "USB supplying power to attached device" notification. You reckon if I "hide" a rom in the / folder or some other top level folder, I can go ahead and format data and wipe everything. I wouldn't delete the Rom in the process ?
Click to expand...
Click to collapse
Put a rom on usb stick, reboot phone into TWRP, connect USB-OTG to the phone, get the stick into otg and go to install -> select storage -> usb otg (hit it) install the rom.
If your phone can detect the otg you should be able to install rom and firmware.

mArIuS% said:
Put a rom on usb stick, reboot phone into TWRP, connect USB-OTG to the phone, get the stick into otg and go to install -> select storage -> usb otg (hit it) install the rom.
If your phone can detect the otg you should be able to install rom and firmware.
Click to expand...
Click to collapse
I tried that. It won't let me mount in TWRP. When i'm booted in the OS, only power is transfered through USB when I connect a usb key using the OTG dongle. No data. Oh well. Can't say I didn't try. At least the rom I'm using is good. I just wanted to upgrade to android 9.0 but it seems like that won't be happening.

LittleW0lf said:
I tried that. It won't let me mount in TWRP. When i'm booted in the OS, only power is transfered through USB when I connect a usb key using the OTG dongle. No data. Oh well. Can't say I didn't try. At least the rom I'm using is good. I just wanted to upgrade to android 9.0 but it seems like that won't be happening.
Click to expand...
Click to collapse
Seems you're phone usb port it's broken....you will be stuck on current rom. It's a pity that xiaomi didn't put an sd card slot......