I've had my OPO for a little over 7 months now. My issue began when I had my desktop at a friend's house and plugged my phone into a USB 3.0 port to grab some videos off the phone when the phone suddenly shut off and would not turn back on. I thought it was bricked somehow but after leaving it plugged into a USB 2.0 port for some time, the charging screen came on and I was able to turn the phone on, but since then both OTG and MTP/PTP transfer doesn't work. If/when the phone is plugged into a computer, it gives an error and Device Manager shows
"Port_#0001.Hub_#0004 Unknown USB Device (Port Reset Failed)" and I'm not only able to charge the phone with one out the dozens of micro usb cables I have. I've tried several cables and a handful of different computers and OSs (Windows 7,8,8.1,10, Ubuntu 15.04, Kali Linux) all to the same result.
I'm running COS 12.1-YOG4PAS3JL, rooted, and have TWRP installed. The phone doesn't show up when in Fastboot mode or the bootloader either. Nothing changes when I disable or enable USB Debugging as well. With DriveDroid if I set the USB system to "Standard Android" the phone reboots and that seems like the closest I've been able to get to any kind of progress. I've gone through unbricking threads as well as Googled until my fingers bled but I'm yet to find anyone with a similar situation where the phone isn't bricked, the micro usb port isn't broken, I can't pick between MTP or PTP mode (USB Connection just says USB is now disconnected), and I'm not running a custom ROM. I tried replacing the micro usb on the phone so I now know that it wasn't that that's been messed up but I'm not sure where to go from here. Any suggestions or help is greatly appreciated.
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I think I've exhausted my options, hopefully somebody here has an idea.
From day 1, my TF300T has been unable to connect to a PC. At first I thought it was because one of my cats chewed on the USB cable before I could try (it still charged, just no PC connection) so I didn't do anything while it was still under warranty.
Since then, I've tried 3 different cables, multiple PCs and a Macbook, and I can't get anything out of it. It's not detected at all by the computer - no unknown device, no prompt for drivers, no device connected sound when I plug it in. No reaction on the tablet either, whether USB debugging is on or not. I also tried replacing the USB port on the tablet, but got the same thing. I doubt it's a driver issue since I'm not getting anything at all on either end of the connection.
It DOES connect to the dock ok, and all the dock functions seem to work. I've tried connecting the USB cable to both the tablet directly and the dock, and I get nothing from either port.
I'd really like to be able to flash custom ROMs on it, and I can't find a working way to root or flash it without a functioning USB connection. Could it be the third-party USB cables giving me problems, and if so, is there one that actually works? And if not, is this just a lost cause?
My Verizon Galaxy s6 doesn't get detected at all by my computer AT ALL. I've tried different cables, PC's, USB Debugging etc.. It just charges that's about it. I looked in Device manager etc on all the computers I've plugged it into and it doesn't show anything being connected. Also I even tried a OTG Usb flash drive that doesn't get detected by the phone neither and the LED on the usb doesn't light up. Only thing I haven't tried is to force put it in MTP I don't know how to do that, i'm on 5.1.1 not marshmallow so I don't think I have that option and I can't update the phone to 6.0.1 because I don't use the phone on Verizon's network to OTA and the phone won't connect to my computer so I cant update it that way. The phone charges good when connected to the wall outlet. The only thing I can think of is maybe the charger port is damaged in someway that is not allowing the phone to detect a computer is connected to it which is why I never get a MTP notification. Before I do surgery on this phone and attempt to replace the charger port do y'all know of any reason to why it won't connect to the pc or is there anything I can do to force MTP?
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NFVK said:
##366633# , disable DM mode , done)
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I just tried this still doesn't work
Smart Switch should be able to update it for you if you don't have service. Has to be in MTP mode though. Enable Developer options by going to About Phone -> tap Build Number a bunch of times and then change the USB connection type in Developer options. I think Smart Switch installs drivers. If none of that works maybe its a driver or OS problem.
Hello, I just purchased an LG X Venture, model number H700. It is running android 7.0. When I first got it a few days ago, I installed the drivers for it on my windows 7 computer, and plugged it in. I got a pop up on the phone where I set the default USB mode to MTP (media transfer protocol). It worked great, and I was able to tranfer files between my PC and my phone.
Then I tried to get adb debugging to work with my phone, and screwed everything up. I enabled developer options, and then checked USB debugging. I also accidentally hit the "revoke USB debugging authorization button." I installed what I think are the correct ADB drivers on my PC. Then I plugged my phone back into my PC. This time, nothing comes up. I've checked in the device manager, etc., and I can't find a trace of the phone anywhere.
I looked back at developer options under USB configuration, and it's still set to MTP. But somehow I screwed something up, because my phone and computer no longer recognize each other (except for charging).
I even tried my phone with two other computers (one also windows 7, the other mac), and got the same behavior.
Any idea how to fix this? Ideally I'd like to get ADB to work, but I would settle for just getting MTP back haha.
Actually, solved it! Turns out the cable I was using was damaged. I used another one and MTP works fine on all computers.
I tried plugging my S8+ into a cheap Chinese projectors Usb port (where I'd normally put thumbdrives with movies). The projector froze and told me it was not supported after a min or so. Since then I cannot connect to my Pc (that I've been connected to dozens of times). Windows give me a device not recognized. Also can't connect to my Rams Android Auto anymore (it just doesn't see the phone through Usb either). I've made sure I'm set to MTP and USB debugging enabled. I even went as far as Factory Resetting the phone. To no dice.... any help would be greatly appreciated. Thanks in advance.
Hi,
Thank you for the forum (first post).
Trying to get the S6 recognised by pc:
When the phone is connected to the laptops usb port via micro usb and cable (usb debugging on, samsung usb drivers downloaded, mtp:usb on) the computer makes the 'plugged in' audio sound but there is no 'permission to transfer files via usb' type message.
It does charge.
Does this maybe mean the charging port is broken/damaged, or the usb is broken?
Only other detail is that I once got the computer to say in a pop up that it was labelled as a 'samsung s6' rather than unknown device, which it normally does. This any symptom maybe its just a software issue?
Trying to get my computer to connect to the phone and have tried most if not all software solutions so far (including factory reset) and now looking if its hardware. Any tips to get it connected welcome.
Thank you,
David
david7632 said:
Hi,
Thank you for the forum (first post).
Trying to get the S6 recognised by pc:
When the phone is connected to the laptops usb port via micro usb and cable (usb debugging on, samsung usb drivers downloaded, mtp:usb on) the computer makes the 'plugged in' audio sound but there is no 'permission to transfer files via usb' type message.
It does charge.
Does this maybe mean the charging port is broken/damaged, or the usb is broken?
Only other detail is that I once got the computer to say in a pop up that it was labelled as a 'samsung s6' rather than unknown device, which it normally does. This any symptom maybe its just a software issue?
Trying to get my computer to connect to the phone and have tried most if not all software solutions so far (including factory reset) and now looking if its hardware. Any tips to get it connected welcome.
Thank you,
David
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have you gone thru the usual suspects? (diff cable, usb port, diff computer altogether, blah blah blah)
Same happens here, it was fine after flashed Rom now it wont recognize it for some reason