Database Users

USB problem with HTC Desire HD

Hey guys,
I currently recently installed a custom ROM from this website and for some reason now when I plug in my USB into my PC it comes up not being detected so when I put my phone as hard drive so I want to transfer music, it doesn't detect it. Can anybody help me if this is ROM problem or just my USB?

Hey,
Okay I disabled USB debugging didn't know it was on, still doesn't work says windows cannot find USB device not reconginzed when I connect the USB. For the Reinstalling usb driver I do not know how to this ~?

i have the same problem.. turn "fast boot" off and restart the phone.. this always works for me.. hope this helps

Hey, I turned fastboot off. Doesn't work. I ordered new usb cable.. hopefully this works and it was just a fault with the cable!
Sent from my Desire HD using XDA App

Usually this is a problem with the cable. Simple, cheap to fix. Keep your old cable around for charging though (nice to have a spare)

Is this problem with the USB still active?
If so try a different PC just in order to eliminate WinOS issues.
If not close.

Hi,
I have the same problem at some months ago. I tried the cable and pfone on another PC, and it works fine. So, I recommend to try it on another PC and reinstall your Windows.
brgs,
Herold

Had the same propblem! Turns out it was the usb cable, it charged fine with the cable but data transfer didnt work.

i also had the same problem since last week and still cant resolve till now...i try all the option that u gave(change cable/pc,turn off fastboot)....i even sent my phone to shop and they still cant detect.they said maybe the usb port is damage or some software that may block my usb port?is it true? anyone can help?????

necrs said:
i also had the same problem since last week and still cant resolve till now...i try all the option that u gave(change cable/pc,turn off fastboot)....i even sent my phone to shop and they still cant detect.they said maybe the usb port is damage or some software that may block my usb port?is it true? anyone can help?????
Click to expand...
Click to collapse
What happened last week? Is that when you got the phone? Or installed a different rom? etc.

Grant Barker said:
What happened last week? Is that when you got the phone? Or installed a different rom? etc.
Click to expand...
Click to collapse
before this is ok.just last week i remember that i pull the usb cable from the phone quite hard.but i don think that the usb too sensitive that will break by that.still can charging... but not detected in pc

I had similar problem and it was hardware, I sent it back to Vodafone and they sent me a replacement!
I am running CM7 now its awesome.
Andy

USB BRICK in my INSPIRE 4G ( DESIRE HD)
Hi, all
I got a new inspire 4g last week.( equivalent to desire hd ). It was working fine. But now it does not detect the USB connection. It only charges when I connect to pc. No other issues. I have also noticed that during fast boot mode also pc does not recognize the phone as device. I have tried all the suggestion on xda but no luck.
As fastboot is also not detected by PC I could not format mtd0 and reconfigure it.
Can anybody have any other idea? If I change the main board how much cost will incur ??
Thanks all.
Grant Barker said:
What happened last week? Is that when you got the phone? Or installed a different rom? etc.
Click to expand...
Click to collapse

musarraf172 said:
Hi, all
I got a new inspire 4g last week.( equivalent to desire hd ). It was working fine. But now it does not detect the USB connection. It only charges when I connect to pc. No other issues. I have also noticed that during fast boot mode also pc does not recognize the phone as device. I have tried all the suggestion on xda but no luck.
As fastboot is also not detected by PC I could not format mtd0 and reconfigure it.
Can anybody have any other idea? If I change the main board how much cost will incur ??
Thanks all.
Click to expand...
Click to collapse
First of all.. you have HTC Sync installed right?
Happened to me initially as well.. although for me changing the cable and/or changing the USB port on the PC solved the issue. Have you tried these?
Also sometimes killing all apps on the device before connecting helped.
You can try accessing your device through ADB to see if its being detected.
And I really dont think you'll need to change the main board..

USB brick on my Inspire 4G
Thanks for your reply. When I go the phone ADB and Fastboot were working
well. There was no driver issue. Now even PC also does not detect the phone or any new hardware when I connect it to pc. I had working fastboot on both win7 and Linux (ubuntu) pc. Now in both OS the phone is not detectable. Windows device manager does not see any new hardware when I connect my inspire . dmesg also does not show my hardware when I connect my inspire to linux pc.
Please help or suggest me to investigate further. I know how to install and work with adb and fastboot as well as Clockwork recovery ( also ext recovery). Some people suggested to flash a new radio. I can flash the new radio via sdcard. But how safe is it ? My phone is S-off and made unbranded. Will flashing a new radio make my phone locked AT&T again? ????
Thanks a lot
if4ct0r said:
First of all.. you have HTC Sync installed right?
Happened to me initially as well.. although for me changing the cable and/or changing the USB port on the PC solved the issue. Have you tried these?
Also sometimes killing all apps on the device before connecting helped.
You can try accessing your device through ADB to see if its being detected.
And I really dont think you'll need to change the main board..
Click to expand...
Click to collapse

As far as I know.. USB problem has no relation whatsoever to Radio. Radio is only concerned with the signal stuff. Flashing it isn't that risky if you follow the instructions... There's a thread in the development section about Radio's which explains it pretty nicely.
As for the USB problem, are you using a Custom ROM? Some ROMs like LeeDroid have USB detection problem which can be solved simply by flashing a different kernel like LordMod's.
What I meant by "Accessing through ADB" was if commands like "adb remount" or any adb command as such are working when your phone is connected to the PC? Or is it showing "error: device not found"?

[Q] Cannot connect to PC - Cyanogenmod 11

Trying to use odin to flash the stock rom but I cannot connect to pc. I have the correct drivers and usb cable and have tried 2 different pc's that have worked in the past. Running cyanogenmod 11. Any help is appreciated.
Thanks

Perhaps bad cable, or try different usb port.

guyrelax said:
Trying to use odin to flash the stock rom but I cannot connect to pc. I have the correct drivers and usb cable and have tried 2 different pc's that have worked in the past. Running cyanogenmod 11. Any help is appreciated.
Thanks
Click to expand...
Click to collapse
Does it recognize the phone at all when it's connected? Does the phone recognize it's being charged? Are you on Windows 7?

ran into the same problem. any thoughts?

matraca said:
Perhaps bad cable, or try different usb port.
Click to expand...
Click to collapse
as i mentioned i have tried different cables and pc's. I'm running windows 7 and drivers are installed.

TheZander said:
Does it recognize the phone at all when it's connected? Does the phone recognize it's being charged? Are you on Windows 7?
Click to expand...
Click to collapse
yes it charges. doesn't recognize the phone

guyrelax said:
yes it charges. doesn't recognize the phone
Click to expand...
Click to collapse
Do the ##3284# Menu an see if MTP and ADB is checked.
If that doesn't work find a USB Storage app from the play store and that forces it in that mode. If that still doesn't work then you need to gather up all your Micro USB cords and try every one. Or use the one that came in the box

I had that same problem before, I fixed it by uninstalling drivers and installing again. Maybe flash another rom and see if that works. I know if you have usb fast charging enabled enabled on ktkernel that will prevent your computer from recognizing phone. Good luck

matraca said:
I had that same problem before, I fixed it by uninstalling drivers and installing again. Maybe flash another rom and see if that works. I know if you have usb fast charging enabled enabled on ktkernel that will prevent your computer from recognizing phone. Good luck
Click to expand...
Click to collapse
Not sure why but I hooked it up last night and it magically worked using the same pc, port, and cord I was trying before. Finally got rid of cyanogenmod. Thanks for the help

[Q] Galaxy S5 CANT FIND USB

Im in England and the phone for S5 for America, how do you find the USB "connection as camera" its not in the notification panel ? im trying to get on Kies, but i cant.

ron101 said:
Im in England and the phone for S5 for America, how do you find the USB "connection as camera" its not in the notification panel ? im trying to get on Kies, but i cant.
Click to expand...
Click to collapse
Do you have the usb drivers installed correctly? Or try another usb port/ cable.

IVE put the USB driver in the c drive along sid the KIES and still it says its (USB) not recognised. Is there something else i could use instead ,i didnt like kies anyway.I tried to get airdroid to work (ive had that for 3 years) but it doesnt handle software (my phone) 4.4.2 it only does 4.3. It says FORBIDEN.FAILED TO SEND MESSAGE on my PC.

Most likely you are using an outdated version of Kies. There are multiple versions of Kies, ensure that you install the latest version of Kies. Then open Kies and have it detect your phone. That is by far the easiest way to install the proper driver for your S5 model. After the driver is in place you can close Kies and never use it again. Or uninstall it if you wish.
Do not use an USB hub, connect directly to your phone. If you have ongoing issues, use a different USB cable and port. Ensure that you are using a data cable, not a charging (only) cable that has the data lines shorted. If your PC has USB driver issues in general, then you'll need to resolve those issues first or use a different PC.
.

fffft said:
Most likely you are using an outdated version of Kies. There are multiple versions of Kies, ensure that you install the latest version of Kies. Then open Kies and have it detect your phone. That is by far the easiest way to install the proper driver for your S5 model. After the driver is in place you can close Kies and never use it again. Or uninstall it if you wish.
Do not use an USB hub, connect directly to your phone. If you have ongoing issues, use a different USB cable and port. Ensure that you are using a data cable, not a charging (only) cable that has the data lines shorted. If your PC has USB driver issues in general, then you'll need to resolve those issues first or use a different PC.
.
Click to expand...
Click to collapse
KIES V3. The trouble is i cant find the USB i now it should be there in the notif panel but it is not, ive got developer options & usb debugging ticked but thats all, have i got to do anything else (hair pulling time) i dont think so?
1) Should i plug it in the mains or usb on the pc
2) Im using the cable that came with the S5 is that good enough.
3) The S5 sits on a cradle shall i take it of.
4) How do i tell data cable, not a charging (only) cable that has the data lines shorted
5) Ive tried 4 different USB software and it gives the message DEVICE DRIVER SOFTWARE WAS NOT SUCCESSFULLY INSTALLED every time
6) Ive done a reboot every time the drivers are put it
ron

ron101 said:
KIES V3. The trouble is i cant find the USB i now it should be there in the notif panel but it is not, ive got developer options & usb debugging ticked but thats all, have i got to do anything else (hair pulling time) i dont think so?
1) Should i plug it in the mains or usb on the pc
2) Im using the cable that came with the S5 is that good enough.
3) The S5 sits on a cradle shall i take it of.
4) How do i tell data cable, not a charging (only) cable that has the data lines shorted
5) Ive tried 4 different USB software and it gives the message DEVICE DRIVER SOFTWARE WAS NOT SUCCESSFULLY INSTALLED every time
6) Ive done a reboot every time the drivers are put it
ron
Click to expand...
Click to collapse
If you use Windows 8(.1) you have to disable driver signature verification to get the usb drivers installed. Here is a tut. https://learn.sparkfun.com/tutorial...abling-signed-driver-enforcement-on-windows-8.

gee2012 said:
If you use Windows 8(.1) you have to disable driver signature verification to get the usb drivers installed. Here is a tut. https://learn.sparkfun.com/tutorial...abling-signed-driver-enforcement-on-windows-8.
Click to expand...
Click to collapse
Noooop its not that i have win 7 pro
ron

You are juggling too many unnecessary variables. Try to simply that and don't skip checking any of the points.
I have no idea what you mean by plug it in the mains? And at least until you solve this you should not be using a cradle, hub or anything else. As I suggested earlier, connect the phone directly to your computer USB hub. And if you have ongoing problems, try a different cable, USB port or even PC.
Making an assumption that the cable that came with the phone is good enough is counter productive. It's not impossible that it may be damaged or have some problem. Borrow or buy another cable, to eliminate one more possible cause of your issue.
Retrace and double check each step. As soon as you make an assumption that it's not worth checking x step because it couldn't possibly be the cause, you are skipping a possible solution. Make sure that you are using the latest Odin, make sure that you installed it from windows administrator mode, connect directly to the PC's USB port, different cable, etc. If you are methodical, you'll resolve the problem.
Good luck
.

Have you activated developer oprions and usb debug?

ron101 said:
IVE put the USB driver in the c drive along sid the KIES and still it says its (USB) not recognised. Is there something else i could use instead ,i didnt like kies anyway.I tried to get airdroid to work (ive had that for 3 years) but it doesnt handle software (my phone) 4.4.2 it only does 4.3. It says FORBIDEN.FAILED TO SEND MESSAGE on my PC.
Click to expand...
Click to collapse
If you haven't given AirDroid permissions to send SMS directly, "FORBIDEN.FAILED TO SEND MESSAGE" might appear. Change the permissions in phone's settings for a try

fffft said:
You are juggling too many unnecessary variables. Try to simply that and don't skip checking any of the points.
I have no idea what you mean by plug it in the mains? And at least until you solve this you should not be using a cradle, hub or anything else. As I suggested earlier, connect the phone directly to your computer USB hub. And if you have ongoing problems, try a different cable, USB port or even PC.
Making an assumption that the cable that came with the phone is good enough is counter productive. It's not impossible that it may be damaged or have some problem. Borrow or buy another cable, to eliminate one more possible cause of your issue.
Retrace and double check each step. As soon as you make an assumption that it's not worth checking x step because it couldn't possibly be the cause, you are skipping a possible solution. Make sure that you are using the latest Odin, make sure that you installed it from windows administrator mode, connect directly to the PC's USB port, different cable, etc. If you are methodical, you'll resolve the problem.
Good luck
.
Click to expand...
Click to collapse
AFTER last nite i started again this morning (im disabled completely down the right side of my body) with a new spirit fffft i got stuck in.So here we go first i put the USB cable in another usb port (one that i havent used) and the phone came alive and that was that it was done.So i tried another usb cable,that also came alive, so that was that it was the usb port that i was using wasnt suitable simple as that. Thank you for all of your help fffft and the rest it was essential for me THANK YOU.

S4 doesnt get recognized by the Computer

Hey guys,
I read the other threads were people had problems but mine didn't get solved by that. I tried everything from re flashing the Rom/Gapps, taking out the Sim Card & Battery to put it back in, Restarting my phone, Using USB Debugging Mode, trying out different USB ports/cables, installing the Samsung USB Drivers/Kies 3 on my pc, etc.
But nothing I tried helped to solve this error. It started to appear recently but I didn't change anything. My Phone charges when I connect It to my PC but It doesn't show up as a device to transfer files to. Windows doesn't even detect that any device has been connected via USB... Any help is appreciated.

Try this:
dial *#0808# and select AP in USB Settings

Lennyz1988 said:
Try this:
dial *#0808# and select AP in USB Settings
Click to expand...
Click to collapse
Thanks for your help but when I dial *#0808# I just get the message "Connection problem or invalid MMI code."

Sincerity1993 said:
Hey guys,
I read the other threads were people had problems but mine didn't get solved by that. I tried everything from re flashing the Rom/Gapps, taking out the Sim Card & Battery to put it back in, Restarting my phone, Using USB Debugging Mode, trying out different USB ports/cables, installing the Samsung USB Drivers/Kies 3 on my pc, etc.
But nothing I tried helped to solve this error. It started to appear recently but I didn't change anything. My Phone charges when I connect It to my PC but It doesn't show up as a device to transfer files to. Windows doesn't even detect that any device has been connected via USB... Any help is appreciated.
Click to expand...
Click to collapse
Problem of the custom rom that you are using.

Joku1981 said:
Problem of the custom rom that you are using.
Click to expand...
Click to collapse
Thats not possible because nobody else on the Rom thread has that issue

Sincerity1993 said:
Thats not possible because nobody else on the Rom thread has that issue
Click to expand...
Click to collapse
Does it get detected when in download mode? If so, then it's either a driver on your pc or something on your phone.

Lennyz1988 said:
Does it get detected when in download mode? If so, then it's either a driver on your pc or something on your phone.
Click to expand...
Click to collapse
Well, I already know that its either something on my PC or my phone those are the only options :/

Sincerity1993 said:
Well, I already know that its either something on my PC or my phone those are the only options :/
Click to expand...
Click to collapse
You ruled out hardware failure already?

Lennyz1988 said:
You ruled out hardware failure already?
Click to expand...
Click to collapse
No I forgot about that but I hope it's not.

Sincerity1993 said:
No I forgot about that but I hope it's not.
Click to expand...
Click to collapse
That's why I asked about if the phone is being recognized in download mode.

Lennyz1988 said:
That's why I asked about if the phone is being recognized in download mode.
Click to expand...
Click to collapse
Gonna try it out now, I wasn't at home. At least I know that it has nothing to do with my PC now because I tried it on a friends PC and it didn't get recognized either.
Edit: It doesn't get recognized in Download mode

Sincerity1993 said:
Gonna try it out now, I wasn't at home. At least I know that it has nothing to do with my PC now because I tried it on a friends PC and it didn't get recognized either.
Edit: It doesn't get recognized in Download mode
Click to expand...
Click to collapse
If there even isn't a popup showing on your pc when connecting in download mode, then it's hardware.
Try to clean your usb port or replace the module.

Lennyz1988 said:
If there even isn't a popup showing on your pc when connecting in download mode, then it's hardware.
Try to clean your usb port or replace the module.
Click to expand...
Click to collapse
Already did, besides I got 5 USB ports and it doesn't work in any. Anything else I put in them works fine.

Sincerity1993 said:
Already did, besides I got 5 USB ports and it doesn't work in any. Anything else I put in them works fine.
Click to expand...
Click to collapse
The usb port in your phone.

Lennyz1988 said:
The usb port in your phone.
Click to expand...
Click to collapse
Its clean and i dont think thats the problem as anything else I put in there works and it charges normally

Sincerity1993 said:
Its clean and i dont think thats the problem as anything else I put in there works and it charges normally
Click to expand...
Click to collapse
Look, if it doesn't get detected while in download mode then it's:
- Not a software setting on your phone.
- Either you messed up the drivers (unlikely). Remove the drivers completely and it should detect your phone. But it doesn't according to you, so we can rule that out.
- Either you have faulty usb cables (unlikely). You tried multiple.
- Either you have faulty usb port on your pc (unlikely). You tried multiple.
That leaves hardware damage. That seems most likely to me.

Lennyz1988 said:
Look, if it doesn't get detected while in download mode then it's:
- Not a software setting on your phone.
- Either you messed up the drivers (unlikely). Remove the drivers completely and it should detect your phone. But it doesn't according to you, so we can rule that out.
- Either you have faulty usb cables (unlikely). You tried multiple.
- Either you have faulty usb port on your pc (unlikely). You tried multiple.
That leaves hardware damage. That seems most likely to me.
Click to expand...
Click to collapse
Your right that makes sense.. so what do you suggest? I already cleaned the port on my phone. Its weird that it just stopped working from one second to another without me doing anything

Lennyz1988 said:
Look, if it doesn't get detected while in download mode then it's:
- Not a software setting on your phone.
- Either you messed up the drivers (unlikely). Remove the drivers completely and it should detect your phone. But it doesn't according to you, so we can rule that out.
- Either you have faulty usb cables (unlikely). You tried multiple.
- Either you have faulty usb port on your pc (unlikely). You tried multiple.
That leaves hardware damage. That seems most likely to me.
Click to expand...
Click to collapse
Is there anything else I could try out? :/

NO OS installed, No device detected windows 10

Hi guys,
Im having a hard time. Hope u guys can help me.
I wanted to start from scratch so i wiped everything, inclusive internal storage within twrp .
So far no problem, but when i tried to connect my OP5 to PC my PC doesnt recognize it. I guess its something with my pc.
Why doesnt my pc recognize my OP5? I cannot do anything right now.
In device manager i cannot find my op5.
Praying for help

Langenl said:
Hi guys,
Im having a hard time. Hope u guys can help me.
I wanted to start from scratch so i wiped everything, inclusive internal storage within twrp .
So far no problem, but when i tried to connect my OP5 to PC my PC doesnt recognize it. I guess its something with my pc.
Why doesnt my pc recognize my OP5? I cannot do anything right now.
In device manager i cannot find my op5.
Praying for help
Click to expand...
Click to collapse
Have a look at here https://forum.xda-developers.com/oneplus-5/help/fastboot-wont-recognize-device-t3866942

strongst said:
Have a look at here https://forum.xda-developers.com/oneplus-5/help/fastboot-wont-recognize-device-t3866942
Click to expand...
Click to collapse
The drivers are installed. When i plug my OP5 in the PC i dont hear or see anything.
The problem is i cannot go into the OS because i have no OS to change USB debugging mode.
Also tried different usb type c cable's
adb doesnt recognize
fastboot doesnt recognize
pc doesnt recognize

Langenl said:
The drivers are installed. When i plug my OP5 in the PC i dont hear or see anything.
The problem is i cannot go into the OS because i have no OS to change USB debugging mode.
Also tried different usb type c cable's
Click to expand...
Click to collapse
You should try to go to fastboot and connect it since it loads low level drivers. Have you read the linked post and tried the steps?

strongst said:
You should try to go to fastboot and connect it since it loads low level drivers. Have you read the linked post and tried the steps?
Click to expand...
Click to collapse
I've editted my response. fastboot and adb doesnt recognize aswell.

Langenl said:
I've editted my response. fastboot and adb doesnt recognize aswell.
Click to expand...
Click to collapse
Is it possible that my connector is broken? Phone is charging though….
I'm really desperate atm ;(

Langenl said:
Is it possible that my connector is broken? Phone is charging though….
I'm really desperate atm ;(
Click to expand...
Click to collapse
Sure, that's possible, you can try to mount an usb otg stick or similar otg within twrp.

strongst said:
Sure, that's possible, you can try to mount an usb otg stick or similar otg within twrp.
Click to expand...
Click to collapse
Really hope thats not the case.
I simply cant check OTG within Twrp->mount when connected to pc. Aint got another OTG device. I hope there is some other way i can fix my problem because i dont want to spend money on repairing my connector. Thanks for your effort!

Langenl said:
Really hope thats not the case.
I simply cant check OTG within Twrp->mount when connected to pc. Aint got another OTG device. I hope there is some other way i can fix my problem because i dont want to spend money on repairing my connector. Thanks for your effort!
Click to expand...
Click to collapse
OTG won't work if connected to a PC, only storage and controller devices, no clients. you need a USB stick or similar, please do some research about usb OTG if it's not clear

strongst said:
OTG won't work if connected to a PC, only storage and controller devices, no clients. you need a USB stick or similar, please do some research about usb OTG if it's not clear
Click to expand...
Click to collapse
Sorry misunderstanding. Anyways...i just borrowed a USB stick wich support otg but still the same problem. cant select otg.

Langenl said:
Sorry misunderstanding. Anyways...i just borrowed a USB stick wich support otg but still the same problem. cant select otg.
Click to expand...
Click to collapse
If you have a chance to simply try it on another PC, do it. Otherwise Firewall, drivers etc should be your next focus.

Langenl said:
Sorry misunderstanding. Anyways...i just borrowed a USB stick wich support otg but still the same problem. cant select otg.
Click to expand...
Click to collapse
Pushed the USB stick a litthe further and it works. My connector isnt the best anymore but im glad it works. Massive thank you!

Langenl said:
Pushed the USB stick a litthe further and it works. My connector isnt the best anymore but im glad it works. Massive thank you!
Click to expand...
Click to collapse
Glad you got it working now! Maybe you can edit the tread title and add [SOLVED] at the beginning to help others solve their issues

I am having the same problem: no mtp, no adb, no fastboot, no otg
The phone charges with dash without any problems. I already tried 3 different computers (win 10 and Linux mint). Cant think of anything else than a Hardware issue of my USB Port.
My biggest problem is not getting adb, so i can't install twrp at the moment.
Are there any recommendations for me?

derschnelle said:
I am having the same problem: no mtp, no adb, no fastboot, no otg
The phone charges with dash without any problems. I already tried 3 different computers (win 10 and Linux mint). Cant think of anything else than a Hardware issue of my USB Port.
My biggest problem is not getting adb, so i can't install twrp at the moment.
Are there any recommendations for me?
Click to expand...
Click to collapse
I hope you read the thread already?

strongst said:
I hope you read the thread already?
Click to expand...
Click to collapse
Yes I did and the difference between OP and me is the non functional OTG.
I just thought you guys might have another ace up your sleeves.

derschnelle said:
Yes I did and the difference between OP and me is the non functional OTG.
I just thought you guys might have another ace up your sleeves.
Click to expand...
Click to collapse
You need a working USB port,if that won't be fixed, nothing can be done...

strongst said:
You need a working USB port,if that won't be fixed, nothing can be done...
Click to expand...
Click to collapse
I'm not really sure, whether my port is broken or not. Shortly after I posted here, I found out, that I missed the Standard USB-Protocol-Setting in developer options (it was checked as charge). So I changed it and voila, USB worked!
But then I tried to install twrp (which was successful at first, but seems to be overwritten again by stock recovery) and now I can't get my device to connect again. I tried to disconnect, connect with other PCs, change the usb-debugging and standard usb-protocoll, connect in fastboot-mode, nothing works.

derschnelle said:
I'm not really sure, whether my port is broken or not. Shortly after I posted here, I found out, that I missed the Standard USB-Protocol-Setting in developer options (it was checked as charge). So I changed it and voila, USB worked!
But then I tried to install twrp (which was successful at first, but seems to be overwritten again by stock recovery) and now I can't get my device to connect again. I tried to disconnect, connect with other PCs, change the usb-debugging and standard usb-protocoll, connect in fastboot-mode, nothing works.
Click to expand...
Click to collapse
It's me again, I solved my problem!
When I tried to connect yesterday I noticed that my phone always charged and then immediately stopped charging again. It was charged to ~80% and didn't go any further. So I thought maybe the battery calibration is faulty, which can happen when you never fully charge. So I emptied the battery, charged it while phone off and tadaaa everything works.
It seems my phone interrupted the usb connection because it tried to charge my phone over 80% and the controller stopped it.

derschnelle said:
It's me again, I solved my problem!
When I tried to connect yesterday I noticed that my phone always charged and then immediately stopped charging again. It was charged to ~80% and didn't go any further. So I thought maybe the battery calibration is faulty, which can happen when you never fully charge. So I emptied the battery, charged it while phone off and tadaaa everything works.
It seems my phone interrupted the usb connection because it tried to charge my phone over 80% and the controller stopped it.
Click to expand...
Click to collapse
Very interesting but it might be possible. Thanks for posting the solution