hi i have a i9250 -root android 4.3
this morning
1- when i tried to connect my phone to pc i get repeatedly message no recognized but if few time connect and disconnect it phone start on pc
2- phone wake up whiteout any touch or button
3- battery don't get charge properly
i check usb cabal and use another one same problem
factory rest
re-flash rom
nothing work im afraid it's from phone mini usb port
Hi,
I had my phone for quite a while now. I flashed Carbon rom last october and everythings working fine since then. however,since yesterday, the phonr suddenly refuses to connect in usb mode to the computer.it the 'mtp connection' and 'usb conncted' pops up for 1 second and then dissappears. I am able to charge the phone just fine. Tried two different cables,rebooting the phone and gives the same result.any ideas?
It happened for me too.I suspect your USB cable is damaged.it may charge fine but when connecting to pc it will automatically disconnect.same thing happened when I tried with different USB cables.then I bought an original cable from Sony and it works fine till now.
Try these before buying a new cable
1) make sure if USB debugging is disabled
2) see if USB tethering works
3) As a last resort flash current official stock rom
Hello guys,
I had a problem with my Xperia Play where I was getting a red blinking light when trying to switch it on after not having used the phone for a couple of year. I thought it was the battery, so I bought one and when I connected it to the charger I saw an orange light and manage to boot up and then I put a custom firmware on it, which was working fine and I rebooted quite a lot of times.
The problem was that I left the phone idle for a few hours and somehow when I was going to use it, it had a black screen and it wouldn't turn on anymore. I was getting a red blinking light again when trying to switch it on and the same when trying to connect it with USB to the phone.
I thought that the battery might be faulty and bought another one, but same problem. The battery doesn't seem to charge and the phone is not recognized in the computer with a USB cable to reflash it to the original rom and start again. I've tried:
* different USB cables
* different ports
* different computers, one windows 8.1 and one windows 7
* tried re installing drivers
* removing batteries for long periods
* charging batteries for long periods
* reinstalling SONY pc companion software
* running flash tools
but still nothing, in all cases the device appears as disconnected. Windows display the message that the USB device is not recognized and Device Manager displays:
* Windows 7:
Unknown device
Windows has stopped this device because it has reported problems. (Code 43)
* Windows 8.1:
Unknown USB Device (Device Descriptor Request Failed)
Windows has stopped this device because it has reported problems. (Code 43)
A request for the USB device descriptor failed.
I've read quite a lot about this error but at the end it seems somehow people have had it working again, but everything I've tried so far for the last couple of days was not successful. I was thinking that it might be the motherboard, but as I saw it working for a few hours last week, I wonder if it's possible for the motherboard just to die so suddenly?
Any idea of anything else I could try pls? I guess if I manage that the computer recognizes the phone I could reflash and recover it, but I can't see how to manage just that
Update March 13th 2016: SOLVED!
--------------------------------------------------
Hi everyone!
I come to you today with a very nagging situation, and I'm not being able to figure it out! All of the sudden, my phone stopped being detected when I tried to connect it vía USB to any PC.
I would post a screencap of Windows' error here. But I posted under 10 times so Forum's Policy doesn't allow me.
Already tried:
1) Connecting the phone to 5 different computers (running on windows 7 64 / 32 bit, windows 8.1 64 bit, windows 10 64bit)
2) Enabling and disabling "USB Debugging" before plugging the phone to each computer.
3) Uninstalling and reinstalling ADB / LG G4 drivers on every computer that the phone was connected to
4) Different USB cables from different phones (Stock, Samsung Galaxy S4, S5 and S6, Nexus 4 and a generic USB cable)
5) Connecting the phone while on Windows' "Safe Mode" (Windows 7 64bit )
6) Factory reset.
7) Letting my phone discharge completely, and charging it through USB.
8) I was adviced to find the "adbkey" file and delete it. Saddly I couldn't find it anywhere (Not in Windows nor the device)
9) Accessing the "Hidden Menu" by dialing "277634#*#" => Port Check Test => Enable Port Check test
Relevant info:
* LG G4 H815 [not sure if H815AR, H815P or H815T, but certainly not european. No official bootloader unlock ): ]
* Phone charges OK with stock charger and others.
* Just before this started happening, I used a Samsung's Galaxy A5 charger.
* No notification that indicates that the phone is connected. So I can't switch from MTP to PTP mode. Is there any way to do that other than when the phone is connected to a computer?
* No new apps were installed on the phone before this started happening
* I rooted my G4 a long time ago (3 months +) by flashing it with a rooted image.
* The same USB cables were used to connect other phones to any PC and worked OK.
* Not using and external SD memory card
* Last thing I did when I was able to connect my phone to my personal notebook: I transferred some videos and photos from my phone to my PC.
* My grammar and English writing skills suck
What I think it is:
* Bloody Android 5.1. I wish I could flash the phone. But I need a PC connection to do that... yikes.
* Samsung's Galaxy A5 charger that I used. According to this theory.
Any advice/suggestion/possible solution/encouragement will be very very much welcome! I'm going crazy already.
Thanks in advance for your time and attention.
Love from Argentina,
Ok. I just did a factory reset and the problem persists.
Go to users, select your user name and and click on .android folder. Delete adbkey.
rlamba said:
Go to users, select your user name and and click on .android folder. Delete adbkey.
Click to expand...
Click to collapse
Hi! thank you for your reply.
I'm afraid I don't know where that file is.
I've tried a windows search for "*adbkey*" without luck (hidden and system files are showing).
I also manually looked into "C:\Users\<Username>" and there's no ".android" folder.
Also looked into my phone (through "Wifi transfer" app) and there's no such file
More relevant info:
I just remembered, just before experiencing this problem I used my sisters' charger one day (Samsung Galaxy A5). Could it have messed with some Integrated Circuit inside my phone? I've read here in this forum, a Mexican user presented his theory about chargers messing up USB connectivity on android phones.
¿Does anyone have more info about this? I'm not able to flash my phone, since I could never unlock bootloader. And obviously I can't do it through my pc because it's not detecting the device.
solved it! I just added the solution on the main post, highlighted in green.
I just connected the phone and I was able to access normally.
but if my g4 not work what i can do_؟؟؟؟؟؟؟؟
Just factory reset
I had the same problem in my lg g4 h815t. I just reset the phone and then my phone was detected by the pc .
Or just use http://tinyurl.com/adbiso
Sent from my LG-H815 using XDA Labs
DiegoRC said:
solved it! I just added the solution on the main post, highlighted in green.
I just connected the phone and I was able to access normally.
Click to expand...
Click to collapse
Hey, I am facing same issue but with nextbit robin after charging it with oneplus charger. I am not able to access the service menu. Should the phone be rooted for it ? It will be very helpful if you replied.
I have the same problem, but I already did all the things you did, but it still has the problem. Every single PC doesn't detect it, it only charges, what should I do? I have unrooted my Lollipop 5.1 and can't root or flash any rom anymore. Can someone help me?
Solution for my N910V Note 4
Device: (Note 4 rooted, 5.1.1).
I searched all over the place and tried everything to get my phone to connect to pc again.
What finally worked for me was using: Shortcut Master (Lite) app .
In app I searched "USB" within System Apps
Selected "USBSetting" (com.sec.usbsettings.USBSettings)
Launch > Selected AP > MTP + ADB > Reboot
My USB > PC working again.
Hello folks
since hours i have been troubling with an issue with my HTC 10.
Everything started yesterday, as my phone showed me a notice that the battery is loading slowly and I should use the original cable for faster charging (what I was doing) [ERROR 1]. Afterwards, I wanted to make a backup on my computer for flashing, but the usb connection was instantly lost [ ERROR 2]. So I backed up on SD.
I decided to do a RUU in hope that this would fix it. The problems stayed.
The USB Connection in download mode faces the same issue. Phone is recognized and a few seconds later the connection is lost. Only charging works.
Some ideas what I did and tried out:
- USB Debugging
- Use As External Storage
- USB Network Settings)
- Reinstalled drivers (different ones, e. g. Universal ADB Drivers)
- installed and reinstalled HTC sync
- tried different USB ports
- changed the energy options of USB ports
- try an other usb cable
- cleaning plugs
- wiping cache
- ruu
- other firmware / other kernel....
Additionally, I tested it on four different computers and laptops with the difference, that on those the phone is not being recognized at all; no entries in the device managers. (charging works)
Now I am quite out of ideas where the problem could be?! Might it be a hardware issue? What else could it be?
Hope anybody can help....
Thanks....