Samsung phone USB driver not installing

esuhl

I'm trying to connect my Samsung Galaxy S2 phone to my Win7 x64 PC via USB cable so I can transfer files between the phone and PC. I can't use Kies as I'm using custom firmware, so I'm using the latest official Samsung USB driver (v. 1.5.51.0).

This driver worked before, but when I plug in my phone, choose "file transfer via USB", I get the following (edited) pop-up message:

Device driver software was not successfully installed

Samsung Mobile USB Composite Device - Ready to use
MTP USB Device X Failed
SAMSUNG Android ADB Interface - Ready to use

I've been using a rear USB port on the motherboard. I've also tried using a different cable, and different ports. And I tried deleting all USB devices in Device Manager, uninstalling the driver via the Control Panel, rebooting, and installing the drivers again.

But nothing changes.

(At least I can use ADB in the meantime.)

Can anyone suggest anything else I can try? Help!

Neil_Jones

You may have to turn USB Debugging on - you'll find this in the Developer Options under Settings on the phone.

esuhl

Neil_Jones wrote: »

You may have to turn USB Debugging on - you'll find this in the Developer Options under Settings on the phone.

Thanks, but I already have that turned on.

I also tried revoking USB debugging authorisations, and then manually authorising my PC when I connected to it again. But still the same problem...

I can use ADB to copy the files to my PC successfully... but it's a bit of a pain compared to using Windows Explorer.

outofworksch

I find very often a look through Microsoft answers forum can help me with problems.

Does this help you at all

https://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/the-mtp-usb-device-driver-doesnt-install-i-cannot/c85da1e4-9303-4d36-8659-c06864554cbe

DCFC79

What about uploading them to Google Drive then download them on a pc or use 1 of the apps to transfer the files to a pc.

JJ_Egan

I use USBDEVIEW to delete drivers from an existing port then reinstall .
Id Samsung driver fails try Kies .

esuhl

outofworksch wrote: »

I find very often a look through Microsoft answers forum can help me with problems.

Does this help you at all

https://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/the-mtp-usb-device-driver-doesnt-install-i-cannot/c85da1e4-9303-4d36-8659-c06864554cbe

Interesting -- thanks. But, does anyone know what the command actually does?

net localgroup Administrators local service /add

Does it add users "local" and "service" to the "Administrators" group...? Are there any security implications to this...? :-/

DCFC79 wrote: »

What about uploading them to Google Drive then download them on a pc or use 1 of the apps to transfer the files to a pc.

I can use ADB, so I can copy files. It's just annoying that MTP doesn't work.

JJ_Egan wrote: »

I use USBDEVIEW to delete drivers from an existing port then reinstall .
Id Samsung driver fails try Kies .

Kies isn't compatible with my firmware, but USBDeview looks pretty interesting -- thanks! I'll have a play :-)

esuhl

After nothing else worked, I performed a factory reset, and the driver installs perfectly. Yay!

I'm not sure what was wrong with the phone. I did disable a lot of the "start on boot" and "run in background" permissions for a few system apps, so... my guess is that I over-tweaked something there...

Just thought I'd update this thread in case anyone else has the same problem in future. :-)

outofworksch

Glad to hear you got it all sorted.