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Hi everyone, I bought an LG G3 Korean version (F400S) unlocked recently. It is a good phone but I am experiencing three annoying issues (out of the box) with the phone and they are:
1. NO sound at all from the back loudspeaker. The volume is set to maximum, there is no sound from music, video, notifications, touch sound effects, or even ringtone! Surprisingly, when I connect my earphones, there is sound in my earphone, when I remove the earphone, absolutely NO SOUND from the loudspeaker. The sound from ear speaker (the one used to make call) works. I have tested the ringtone in the Hidden Menu, when the ringtone is being played, there is no sound at all.
2. The LG G3 charges well when connected with the charger and when connected with my laptop as well. However, whenever I connect the LG G3 to my laptop, it only charges, it is NOT RECOGNIZED by my laptop. I have the LG Mobile driver installed (downloaded from the LG website (Korea website)), the LG PC Suite installed, the LG Mobile Phone Support Tool installed. Whatever I do, changes the USB cable/ USB port, try in different windows version (Windows 7, 8.1 and 10), USB debugging on and off, reinstall driver, reinstall driver from the option in LG PC Suite, restart the PC several times, NOTHING happens. It is not recognized at all in my laptop. ALSO I cannot see any thing related to LG driver in the Device Manager.
3. USB OTG does not work. I have tried with a working OTG cable to connect a pendrive in my LG G3, it is not recognized, even in the File Explorer of the phone. The cable and pendrive is however detected in my other android device.
The Android version of my LG G3 is Android 4.4.2 (I have received only one update for improving Google experience (about 10 MB).
The Kernel version is 3.4.0
The build number is KVT49L.F400S11a
Software version is F400S11a
Please help me, I have googled for the problems, searched in Youtube as well but no solutions. The phone was bought online, it is original but I have no warranty and even if i need to repair, I will have to send it back to China, which will be money and time consuming. Please help me.
Upgrade to v20F using this KDZ and let me know if it resolves your issues or not
http://pkg02.xcdn.gdms.lge.com/dn/downloader.dev?fileKey=FW3D4U9E02LPATRAC381YA4/F400S20F_00.kdz
itsbighead said:
Upgrade to v20F using this KDZ and let me know if it resolves your issues or not
Click to expand...
Click to collapse
Thanks for the reply, I tried your suggestion, but it did not work. Again, when I tried to connect the LG G3 to the PC so as to flash with the KDZ, it says on the taskbar: 'The last USB device you connected to this computer malfunctioned, and Windows does not recognize it'. In the Device Manager, I get USB Device Not Recognized (Error Code 43), Unknown USB device (Device Descriptor Request Failed) Error Code 43. I googled this issue as well no success, I reinstalled the LG Drivers, rebooted my PC, again NO LG DRIVERS in the Device Manager, and whenever I connect the LG G3 I get the same message I mentioned above. Hence, I cannot upgrade to the v20F version as I cannot connect the device to my PC.
UPDATE: I cannot put the device in download mode for flashing. I hold the volume up button while connecting the cable to the USB 2.0 port. The LG logo appears on the phone and it just charges. Also, I have tried to remove everything related to the drivers and reinstall, now I do not have the Error Code 43, BUT still the phone is not recognized.
Mr Rus said:
Thanks for the reply, I tried your suggestion, but it did not work. Again, when I tried to connect the LG G3 to the PC so as to flash with the KDZ, it says on the taskbar: 'The last USB device you connected to this computer malfunctioned, and Windows does not recognize it'. In the Device Manager, I get USB Device Not Recognized (Error Code 43), Unknown USB device (Device Descriptor Request Failed) Error Code 43. I googled this issue as well no success, I reinstalled the LG Drivers, rebooted my PC, again NO LG DRIVERS in the Device Manager, and whenever I connect the LG G3 I get the same message I mentioned above. Hence, I cannot upgrade to the v20F version as I cannot connect the device to my PC.
UPDATE: I cannot put the device in download mode for flashing. I hold the volume up button while connecting the cable to the USB 2.0 port. The LG logo appears on the phone and it just charges. Also, I have tried to remove everything related to the drivers and reinstall, now I do not have the Error Code 43, BUT still the phone is not recognized.
Click to expand...
Click to collapse
Pull the battery
Only press the volume up button while connecting the cable to the USB port.
Let me know if that works. It sounds like your pressing the power button first, pressing volume up and then plugging the usb cable in
If it doesnt theres also the adb method as well that i can tell you after
itsbighead said:
Pull the battery
Only press the volume up button while connecting the cable to the USB port.
Let me know if that works. It sounds like your pressing the power button first, pressing volume up and then plugging the usb cable in
If it doesnt theres also the adb method as well that i can tell you after
Click to expand...
Click to collapse
I tried it but I only get a picture of a battery with a USB cable connected and a yellow triangle with an question mark. No download mode, and it is not detected by my PC. Please give me further suggestions. I am continuously searching how to solve these issues.
Mr Rus said:
I tried it but I only get a picture of a battery with a USB cable connected and a yellow triangle with an question mark. No download mode, and it is not detected by my PC. Please give me further suggestions. I am continuously searching how to solve these issues.
Click to expand...
Click to collapse
you can use this command with adb
adb reboot bootloader
Mr Rus said:
Hi everyone, I bought an LG G3 Korean version (F400S) unlocked recently. It is a good phone but I am experiencing three annoying issues (out of the box) with the phone and they are:
1. NO sound at all from the back loudspeaker. The volume is set to maximum, there is no sound from music, video, notifications, touch sound effects, or even ringtone! Surprisingly, when I connect my earphones, there is sound in my earphone, when I remove the earphone, absolutely NO SOUND from the loudspeaker. The sound from ear speaker (the one used to make call) works. I have tested the ringtone in the Hidden Menu, when the ringtone is being played, there is no sound at all.
2. The LG G3 charges well when connected with the charger and when connected with my laptop as well. However, whenever I connect the LG G3 to my laptop, it only charges, it is NOT RECOGNIZED by my laptop. I have the LG Mobile driver installed (downloaded from the LG website (Korea website)), the LG PC Suite installed, the LG Mobile Phone Support Tool installed. Whatever I do, changes the USB cable/ USB port, try in different windows version (Windows 7, 8.1 and 10), USB debugging on and off, reinstall driver, reinstall driver from the option in LG PC Suite, restart the PC several times, NOTHING happens. It is not recognized at all in my laptop. ALSO I cannot see any thing related to LG driver in the Device Manager.
3. USB OTG does not work. I have tried with a working OTG cable to connect a pendrive in my LG G3, it is not recognized, even in the File Explorer of the phone. The cable and pendrive is however detected in my other android device.
The Android version of my LG G3 is Android 4.4.2 (I have received only one update for improving Google experience (about 10 MB).
The Kernel version is 3.4.0
The build number is KVT49L.F400S11a
Software version is F400S11a
Please help me, I have googled for the problems, searched in Youtube as well but no solutions. The phone was bought online, it is original but I have no warranty and even if i need to repair, I will have to send it back to China, which will be money and time consuming. Please help me.
Click to expand...
Click to collapse
First update your drivers on your computer. If that won't work try different ports. USB 2.0 or 3.0 can make a huge difference. Your speaker is probably dead. And i don't have any experience with USB OTG so I can't help you with that
itsbighead said:
you can use this command with adb
adb reboot bootloader
Click to expand...
Click to collapse
Already tried that with the '15-sec ADB' something like that + with Android studio, I have searched on youtube and google how to do it, but nothing happen when I enter the command, it just says that device not found. Whenever I connect a pendrive or my other phones to my PC, I can see in device manager, it refreshes and the driver for that particular device appears. BUT there is NO refresh nor any driver appearing when connecting the LG G3. Today I tried it with my friend's USB cable (he has the LG G3 (D855), it does not detect as well in his PC but his phone is detected in his PC. I really do not know what is the matter :crying:
_SDroid said:
First update your drivers on your computer. If that won't work try different ports. USB 2.0 or 3.0 can make a huge difference. Your speaker is probably dead. And i don't have any experience with USB OTG so I can't help you with that
Click to expand...
Click to collapse
Thank you for your reply, I have already tried all of these, nothing is working.
Did you figure out how to get your phone recognized by the computer? I am facing the very same issue and I'm feeling hopeless
Nttra said:
Did you figure out how to get your phone recognized by the computer? I am facing the very same issue and I'm feeling hopeless
Click to expand...
Click to collapse
No, i am still having the same issue. I think with an update it will be okay (but I have not received any update till now! I am stuck with Kitkat 4.4.2). If it is a hardware problem I will have to return it or replace the USB port or motherboard.
Mr Rus said:
No, i am still having the same issue. I think with an update it will be okay (but I have not received any update till now! I am stuck with Kitkat 4.4.2). If it is a hardware problem I will have to return it or replace the USB port or motherboard.
Click to expand...
Click to collapse
Oh, OK thanks. I'm still reading forums in search for a definite solution.
Good luck!
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
Hello guys. I try to connect my LG G3 with 5.0 Android to my PC and I get an error which says that the "USB Device not recognised." The weird thing is that it is charging. I enabled USB Debugging, I changed the cable, i tried other PC, other USB ports, turned on safe mode, with no luck. Also in Device Manager I have an explanation mark in front of "Unknown USB Device ( Device Descriptor Request Failed" which it should not appear like this. I installed LG G3 drivers, LG PC Suite and LG Support Tool again with no luck.
Do you have any experience on this issue? Thanks for your help
I have a problem.
My screen is broken. Now I want to send him to OnePlus.
But before that I want unroot it. Or at least reset to factory defaults. But both things fails.
I have the latest FreedomOS Rom. Since then I can no longer use TWRP. When I start my phone to the recovery the screen goes black and nothing happens anymore.
The same happens when I put it back to factory settings through the settings menu .
I've read there is a modified version of TWRP.
From here begins the real problem. Windows doesn't recognizes my phone.
In Device Manager it appear as "unknown USB device (failed request for device descriptor)"
What I've tried:
Boot in to Bootloader
Original (Dash) USB cable
Other USB cable
WIndows 10
Windows 7
USB debugging on
USB debugging off
OEM unlocking on
OEM unlocking off
USB configuration: File transfer
USB configuration: MTP
USB Configuration: Charge
Anyone have an idea?
Maybe it's the ROM. But I cannot flash another ROM because I can not get into TWRP.
Maybe it's an option to flash the modified TWRP without a computer. So right from the bootloader. But I do not know if this is possible. And how it should be done
I'm having the exact same problem. Did you find a solution?
In windows 10 -> i get Device Descriptor Request Failed
In windows 7 -> Unknown Usb Device (Installed Correctly)
whenever i try to update device driver with ANY driver (oneplus... or generic sdk driver) I get a message saying "doesn't contain a suitable driver for your device.....)
I went to device manager > right click mtp (unknown device) > update driver software > browse my computer > let me pick > mtp USB device > happy me
Windows it's the problem. I reinstalled drivers, adb, nothing. At work i try it & it works. I reinstalled windows. Now works.
I'm on windows 10 x64.
Damn it, I don't think windows is my problem.. i tried Windows 10 / Windows 7(2 diff computers)
i can't even see the phone as MTP..
Found any solution to this? Having a similar issue
THREAD CLOSED! If interestend in this subject, please continue here: https://forum.xda-developers.com/oneplus-3/help/usb-device-recognized-t3722279
Dear All
I've a G3 D855 rooted, with twrp recovery and stock rom 30b, all works fine but when I plug the USB to the pc windows it does not recognize the smartphone, the recharge is ok only the detection does not work properly, the error message is "unknown usb device (device descriptor request failed)", smartphone side all works fine, the internal memory is ok, i can enter in recovery but I can't do any operation from usb (no flashtool or similar). I already tried to install qualcomm driver but nothing to do. Any idea?
thanks
Regards
enghel said:
Dear All
I've a G3 D855 rooted, with twrp recovery and stock rom 30b, all works fine but when I plug the USB to the pc windows it does not recognize the smartphone, the recharge is ok only the detection does not work properly, the error message is "unknown usb device (device descriptor request failed)", smartphone side all works fine, the internal memory is ok, i can enter in recovery but I can't do any operation from usb (no flashtool or similar). I already tried to install qualcomm driver but nothing to do. Any idea?
thanks
Regards
Click to expand...
Click to collapse
Here's some different things you can try:
1. Make sure USB Debugging is enabled, and make sure you get a pop-up on the g3 asking if your PC has permission to connect to your device
2. Try a different port on the PC or try a different USB cabl
3. Try a different PC
Hi, thanks
Already tried but nothing, it seems the usb chipset deleted its info, I don't know if there is any way to flash it