Develop Bugs

HELP LG G4 Bootloop issue

Recently after trying to upgrade my LG G4 to android 6.0 by flashing the zips in recovery, I encountered a boot loop. I have tried many thing like using the LG Flash Tool, I also tried booting into recovery and restoring a backup I made, but none of this made any difference. Please I need help.
LG G4 H815 android 5.1.1 or 6.0 (not sure) I'm not sure because I tried to flash the zips fro android 6.0 via recovery and didn't work, then I restored my phone and tried to boot up but that failed to work as well.

Try to use the LG bridge tool.
Start lg bridge.
Connect your device while off with your usb cable.
It will start - nevermind, just keep it going.
Use the "solve update issue" option in the bottom right corner of the software update screen in lg bridge.
It will reinstall 6.0 without data loss.

TheReino said:
Try to use the LG bridge tool.
Start lg bridge.
Connect your device while off with your usb cable.
It will start - nevermind, just keep it going.
Use the "solve update issue" option in the bottom right corner of the software update screen in lg bridge.
It will reinstall 6.0 without data loss.
Click to expand...
Click to collapse
It does not detect that the device is connected, even when it is.

Takes some time to detect. Worked for me an hour ago...

TheReino said:
Takes some time to detect. Worked for me an hour ago...
Click to expand...
Click to collapse
I might have fixed it using a different method.

Wich method?

I have the same issue.. I send my phone to the repair center of amazon. Let´s look what they can do.

Not necessary, in bootloop, just connect usb and start lgup, when it detect it, (and it will as unknown mode device) tap com port it was found on and ui will open, then click on phone info, it will connect and establish a valid usb connection to phone and open new prompt with phone info...... Then start adb command prompt and enter 'adb reboot recovery' and bingo you're in recovery.... Solves every bootloop!

spoonymoon said:
Not necessary, in bootloop, just connect usb and start lgup, when it detect it, (and it will as unknown mode device) tap com port it was found on and ui will open, then click on phone info, it will connect and establish a valid usb connection to phone and open new prompt with phone info...... Then start adb command prompt and enter 'adb reboot recovery' and bingo you're in recovery.... Solves every bootloop!
Click to expand...
Click to collapse
If the phone in bootloop, such phone does not see any one program
This phone can be started only in the DM

spoonymoon said:
Not necessary, in bootloop, just connect usb and start lgup, when it detect it, (and it will as unknown mode device) tap com port it was found on and ui will open, then click on phone info, it will connect and establish a valid usb connection to phone and open new prompt with phone info...... Then start adb command prompt and enter 'adb reboot recovery' and bingo you're in recovery.... Solves every bootloop!
Click to expand...
Click to collapse
How do you mean ?
tap com port it was found on
Click to expand...
Click to collapse

LG G4 MTP&PTP Problem - pc can't detect my G4

Ok, I have a really big problem that I've discovered recently and that is my G4 can't connect to my laptop with MTP or PTP. All it does is charge the phone.
Edit: My G4 h818p is rooted.
*uninstalling and reinstalling - LGUnitedMobileDriver, LGMobileSupportTool, LGBridge_Setup done nothing
*tried different cables - doesn't help me
*uninstalling MTP driver still not working, and adds to my problem because now my laptop wants me to install Media Format Feature Pack for Windows 7 N with Service Pack 1 and Windows 7 KN with Service Pack 1 (KB968211) but I don't have Windows 7 N or KN
*checked an update on my laptop for MTP drivers or Windows Media Player but they're not showing
There's one solution I want to try, installing new windows 7 but that will be a big hassle for me since I have tons of applications to download and install again and not sure if that will help. :crying:

well it happened once for me and what i remember is that i had to install new windows sorry for that

coowkeee said:
Ok, I have a really big problem that I've discovered recently and that is my G4 can't connect to my laptop with MTP or PTP. All it does is charge the phone.
Edit: My G4 h818p is rooted.
*uninstalling and reinstalling - LGUnitedMobileDriver, LGMobileSupportTool, LGBridge_Setup done nothing
*tried different cables - doesn't help me
*uninstalling MTP driver still not working, and adds to my problem because now my laptop wants me to install Media Format Feature Pack for Windows 7 N with Service Pack 1 and Windows 7 KN with Service Pack 1 (KB968211) but I don't have Windows 7 N or KN
*checked an update on my laptop for MTP drivers or Windows Media Player but they're not showing
There's one solution I want to try, installing new windows 7 but that will be a big hassle for me since I have tons of applications to download and install again and not sure if that will help. :crying:
Click to expand...
Click to collapse
The same thing for me.. I already did everything except installing a new os, still unrecognizable. This occured after flashing a rooted image.
Sent from my LG-H818 using Tapatalk

drumbeater79 said:
The same thing for me.. I already did everything except installing a new os, still unrecognizable. This occured after flashing a rooted image.
Sent from my LG-H818 using Tapatalk
Click to expand...
Click to collapse
yeah i think it was the rooted image also.. :/

If ever you'll find a fix, pls. post it in here. I'll do the same thing
Sent from my LG-H818 using Tapatalk

check this out guys i hope it helps
Good luck

Possible Fix
I had also faced that problem after i rooted my g4 H818n. it was not connecting with the PC in any mode.i have tried different laptops which had windows 8 to win 10.1 but nothing worked.also my Bluetooth was not turning on.only thing will fix this is for you to flash a compatible .kdz for your H818p using LG UP and select Refurbish . you can take a backup with lg backup software in mobile and later can restore everything. Than you can try rooting again. That's how i fixed it for my mobile. now everything is working fine again. Hope it helps.:fingers-crossed:

How can we use LG UP if our device can't be recognized on the first place?
Sent from my LG-H818 using Tapatalk

Did that thing in the link work for you?
Sent from my LG-H815 using Tapatalk

If you have bluestacks installed on your PC, kill anything Bluestacks related in Windows Task manager. This always causes problems for me

Does this work for you folks?
[How to fix] Windows 8/8.1/10 is not detecting my LG Gxxx device

drumbeater79 said:
How can we use LG UP if our device can't be recognized on the first place?
Sent from my LG-H818 using Tapatalk
Click to expand...
Click to collapse
put it in download mode, turn off your mobile fully than push the volume up button and connect the cable to PC.it will take the mobile to download mode than open LG UP .it will detect your phone. at least it detected mine. try first, hope it solves your problem:fingers-crossed:

Isn't it volume up button instead of volume down?
Sent from my LG-H815 using Tapatalk

imarcel99 said:
Isn't it volume up button instead of volume down?
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
yes its volume up button. my mistake

Problem solved:
Here's what I did to make my device recognizable.
1. Uninstall all LG Driver/s in your PC, if there's any.
2. Reboot.
3 Go to Start - Then Command Prompt
4. Enter command "shutdown /r /o /f /t 00"
5. Click the "OK" button
6. System will restart to a "Choose an option" screen
7. Then select "Troubleshoot" from "Choose an option" screen
8. Then select "Advanced options" from "Troubleshoot" screen
9. Then select "Windows Startup Settings" from "Advanced options" screen
10. Click "Restart" button
11. System will restart to "Advanced Boot Options" screen
12. Select "Disable Driver Signature Enforcement"
13. Restart & install drivers that came with the device (Accessible through MTP options)
Viola! Your device can now be read by your PC.
Hit thanks if that worked for you

drumbeater79 said:
Problem solved:
Here's what I did to make my device recognizable.
1. Uninstall all LG Driver/s in your PC, if there's any.
2. Reboot.
3 Go to Start - Then Command Prompt
4. Enter command "shutdown /r /o /f /t 00"
5. Click the "OK" button
6. System will restart to a "Choose an option" screen
7. Then select "Troubleshoot" from "Choose an option" screen
8. Then select "Advanced options" from "Troubleshoot" screen
9. Then select "Windows Startup Settings" from "Advanced options" screen
10. Click "Restart" button
11. System will restart to "Advanced Boot Options" screen
12. Select "Disable Driver Signature Enforcement"
13. Restart & install drivers that came with the device (Accessible through MTP options)
Viola! Your device can now be read by your PC.
Hit thanks if that worked for you
Click to expand...
Click to collapse
Well in my case the problem was in my mobile.

atiquefaisal127 said:
Well in my case the problem was in my mobile.
Click to expand...
Click to collapse
How did you solve this?

OP3 Not Found By Fastboot (Win 10)

So I'm running windows 10 on my pc and my op3 is easily found by windows. When I enter fastboot mode on my op3, the command "fastboot devices" doesn't show my op3. I used that 15 sec adb & fastboot installer.

MrHaPpY66 said:
So I'm running windows 10 on my pc and my op3 is easily found by windows. When I enter fastboot mode on my op3, the command "fastboot devices" doesn't show my op3. I used that 15 sec adb & fastboot installer.
Click to expand...
Click to collapse
Have you enabled oem unlocking from developer options?

I'm having the same problem. After going back to Oxygen OS (now 3.5.4) from MIUI 8 fastboot just doesn't work anymore. ABD works just fine (tried on Minimal ABD and Fastboot on Windows and ABD installed over Android Studio on Ubuntu. Fastboot did recognize the phone on Ubuntu but flashing TWRP resolved in a bootloop (tried the old and the new recovery image).
All drivers are installed on both Windows and Ubuntu (I even removed all drivers on Windows and added them again) and just to make sure everything gets installed I disabled driver signature verification on Windows, but as I said - still no luck.
Edit: Of course USB Debugging and OEM Unlocking is enabled (my bootloader is also unlocked since I already had tried out multiple roms)

Had the same Problem, Win10 is the Problem + the old OP Drivers + the new Update to Win10 etc.
Nothing worked, tryed everything. Created a Thread last week here also...
After that i created a new Partition and installed Win7 on it. All works fine, only thing is while Boot ur System u have to pick ur OS or it waits 30sec to boot up but thats ok.
Now i have Win10 for everything and i reboot to win7 for Fastboot/OP3
http://forum.xda-developers.com/oneplus-3/help/connect-to-phone-adb-fastboot-t3485079
Didnt tryed the last Tip.

KornY10 said:
Win10 is the Problem
Click to expand...
Click to collapse
Can't solve your problem, but OP3 fastboot does work in Windows 10. I did have to disable driver signature verification to install the driver in the first place, and you'll have to leave it off for the driver to stay functional, but it definitely works on Win 10.

I dont tryed ur Way, so yes after disable Driver sign. it works like u Said but i did not Test it.

i had the same problem to find the correct adb driver spent many hours but it didnt work so after that last i try to update windows 10 and find adb driver there after updating window its work like charm so all u have to do is just connect ur phone with data transfer mode on and search the window automatic updates .

Same here

It's driving me crazy. I've updated from a rooted stock OS (incl TWRP) via full OTA directly to 3.2.7, which removed TWRP and root.
I now cannot enter a Fastboot mode which detects the USB connection. Thus I can't flash TWRP again and can't root my phone, making lots of apps unusable.
I've tried every suggestion on every thread but nothing works...
Sent from my ONEPLUS A3003 using Tapatalk

Also got kedacom on my device manager after automatic driver update but my phone still isn't recognised in adb devices, does everyone else's serial number show up?

You guys still have the problem?
Sent from my Xiaomi Mi 5 using XDA Labs

Managed to solve it: Disable driver signature verification (follow howtogeek guide) then reinstall Drivers from Oneplus. Go to device manager chose the Kedacom Device and select the correct Oneplus Driver instead then reboot PC and Phone and now it should work

SgtIcetea said:
Managed to solve it: Disable driver signature verification (follow howtogeek guide) then reinstall Drivers from Oneplus. Go to device manager chose the Kedacom Device and select the correct Oneplus Driver instead then reboot PC and Phone and now it should work
Click to expand...
Click to collapse
Good that you found the solution..
Sent from my Xiaomi Mi 5 using XDA Labs

Well I didn't really solve the problem on win 10 so i just decided to use Ubuntu instead. Worked well

SgtIcetea said:
Managed to solve it: Disable driver signature verification (follow howtogeek guide) then reinstall Drivers from Oneplus. Go to device manager chose the Kedacom Device and select the correct Oneplus Driver instead then reboot PC and Phone and now it should work
Click to expand...
Click to collapse
I tried that too, but didn't work. What driver did you select in Device manager?

superiscch said:
I tried that too, but didn't work. What driver did you select in Device manager?
Click to expand...
Click to collapse
Rebooted both devices, OP3 was in fastboot. Then there was a Driver called Oneplus Bootloader Interface (or something similar)

SgtIcetea said:
Rebooted both devices, OP3 was in fastboot. Then there was a Driver called Oneplus Bootloader Interface (or something similar)
Click to expand...
Click to collapse
The driver that shows up as a spare drive when you connect the phone? Tried that too, no good. Going to boot Ubuntu later today, hope that works. I just need twrp, then I'm good ?

superiscch said:
The driver that shows up as a spare drive when you connect the phone? Tried that too, no good. Going to boot Ubuntu later today, hope that works. I just need twrp, then I'm good
Click to expand...
Click to collapse
Yeah that one. After disabling the driver signature verification you have to re install it, when it's not disabled windows just doesn't install it although it says it does. After I disabled it Windows actually showed a completely new window during installation to install the driver properly

superiscch said:
The driver that shows up as a spare drive when you connect the phone? Tried that too, no good. Going to boot Ubuntu later today, hope that works. I just need twrp, then I'm good
Click to expand...
Click to collapse
Man, had to just do it through my Ubuntu VM. Tried Win 10 Win 7, all gave me troubles.
Started Ubuntu, setup ADB and unlocked in a breeze

i have same problem

OP3 stucks on "Waiting for Device"

Hi,
I try to flash my OP3.
I did first the UNLOCK, that worked with the CMD (Running Windows 10).
My device is Unlocked.
But when I wanna try fastboot flash recovery recovery.img
Or I type then it says waiting for device...
and when i typ: fastboot devices
then if gives nothing.
Yes, I did the OEM unlock in developers options en USB debugging is on.
HELP!

HELP!

Try manual boot into fastboot mode https://youtu.be/7ihDGm3EX_o and then reconnect.

peterk-1 said:
Try manual boot into fastboot mode https://youtu.be/7ihDGm3EX_o and then reconnect.
Click to expand...
Click to collapse
Yes, I did that.
But not working...
Over WiFi it's working, but not with USB.

Oke, ADB is working, but only when the device in ON.
When I does the device in Fastboot.
Than it doesn't work!

HELP!

Oke, I fix it.
Did it in an VM with Windows 7.
Bye.

YourTheBest said:
Oke, I fix it.
Did it in an VM with Windows 7.
Bye.
Click to expand...
Click to collapse
I'm also stuck with this, could briefly tell me how you set up a VM with window's 7 please? I tried with Ubuntu but no luck installing the adb and fastboot? Stuck with no recovery so please help

First Tick OEM unlock and enable usb debugging. And install latest driver

Ajshal said:
First Tick OEM unlock and enable usb debugging. And install latest driver
Click to expand...
Click to collapse
Way past that mate everything is installed, I need to get device to show in fastboot as it's currently not showing

How did you install the driver? do you have windows 8 or above?

daviss101 said:
Way past that mate everything is installed, I need to get device to show in fastboot as it's currently not showing
Click to expand...
Click to collapse
I have same pblm on my LG K10 dude

therightperson_630 said:
How did you install the driver? do you have windows 8 or above?
Click to expand...
Click to collapse
At first it it was called Marshall London bootloader interface but after clicking automatic driver update it then showed as "kedacom bootloader" it does show its in adb mode thou. Is there any Google/Samsung drivers you could link me?
Edit- windows 10

daviss101 said:
At first it it was called Marshall London bootloader interface but after clicking automatic driver update it then showed as "kedacom bootloader" it does show its in adb mode thou. Is there any Google/Samsung drivers you could link me?
Edit- windows 10
Click to expand...
Click to collapse
Ok, not sure if you know about this, but you'll have to install the drivers with signed driver enforcement turned off in windows 10:
Setting > update & security > recovery tab > Advanced start-up (restart now).
On boot up you'll use the function keys to turn off "signed driver enforcement" or something similar.
Then try and install adb/fastboot from this http://forum.xda-developers.com/showthread.php?t=2317790
It should come up with an extra security window during the installation - the driver will be properly installed and you'll be able to use fastboot on your OP3

therightperson_630 said:
Ok, not sure if you know about this, but you'll have to install the drivers with signed driver enforcement turned off in windows 10:
Setting > update & security > recovery tab > Advanced start-up (restart now).
On boot up you'll use the function keys to turn off "signed driver enforcement" or something similar.
Then try and install adb/fastboot from this http://forum.xda-developers.com/showthread.php?t=2317790
It should come up with an extra security window during the installation - the driver will be properly installed and you'll be able to use fastboot on your OP3
Click to expand...
Click to collapse
Okay thanks, I have tried that step but that's when it changed to kedacom via automatic update. I'm confused here I downloaded official oneplus drivers and installed and my phone is perfectly recognised as A300 when its file transfer but when you say install drivers which ones can I download to install manually to remove kedacom? Thanks your time to help but I'm completely stuck

daviss101 said:
Okay thanks, I have tried that step but that's when it changed to kedacom via automatic update. I'm confused here I downloaded official oneplus drivers and installed and my phone is perfectly recognised as A300 when its file transfer but when you say install drivers which ones can I download to install manually to remove kedacom? Thanks your time to help but I'm completely stuck
Click to expand...
Click to collapse
go to device manager and manually uninstall kedacom driver and install minimal adb/fastboot from the link I posted, they'll install the driver automatically

daviss101 said:
Way past that mate everything is installed, I need to get device to show in fastboot as it's currently not showing
Click to expand...
Click to collapse
Just install an FRESH Windows 7.
Install ADB Drivers
Install OP3 drivers
And than open CMD an enter the commands.

YourTheBest said:
Just install an FRESH Windows 7.
Install ADB Drivers
Install OP3 drivers
And than open CMD an enter the commands.
Click to expand...
Click to collapse
How do I get a free version of windows 7 without downloading a cracked ISO?

Broken Screen/Digitizer need backup

Dropped phone, broken screen/digitizer, doesn't respond to touch
Was able to see the screen a bit yesterday but now its almost all black. I mainly just need my photos off it. Tried an RMA to replace the screen but they said they had to wipe everything first
Is there any way I can pull the photos off it? I haven't tried an otg yet, but I also can't see the screen, so im not sure it would help
Is there a screen sharing program I could get w/o first installing it on my phone?
I think my phone may be rooted, i forget if i ever did, but i dont have TWRP installed on it? (i dont super know what that is but i see other people talking about it)
Any thoughts on how to pull photos off it? I tried the adb devices but the cmd prompt doesn't seem to recognize the phone
Im quite sure I have debugging enabled, just coudln't get the file transfer button hit

Adb pull command should work, but you need to sort the drivers first (I'm guessing that's the issue).
Sent from my OnePlus 3 using Tapatalk

Explorer23 said:
Adb pull command should work, but you need to sort the drivers first (I'm guessing that's the issue).
Sent from my OnePlus 3 using Tapatalk
Click to expand...
Click to collapse
Ok cool, how would i go about sorting the drivers? o.0

jsaden said:
Ok cool, how would i go about sorting the drivers? o.0
side note.... wth is this image verification lol, ive tried like 30 of them, why is it so hard to post lol ><
Click to expand...
Click to collapse
Sorry, can't give definite answer, I know that I had an issue with drivers (device wasn't properly recognized) and tried pretty much everything that Google suggested ... Until it finally started working. I have no idea exactly what solved the issue, it was over a year and a half ago. The next time I clean installed Windows (10 in both cases) it was smart enough to automatically find right drivers.
So ... I'm guessing Googling something like "OnePlus 3 Windows # drivers" should find something useful?
About image verification: are you talking about anti-bot system that checks if you're human? Wouldn't know much about that, never personally had issues with it, but also very rarely see it on XDA as I'm nearly always checking this forum in Tapatalk app.
Sent from my OnePlus 3 using Tapatalk

jsaden said:
Ok cool, how would i go about sorting the drivers? o.0
Click to expand...
Click to collapse
If you had earlier connected your phone to the PC and authorised the PC connection on your phone, then it is a simple issue of disabling driver signature verification on Win 10 and installing the OnePlus drivers on it. Search for and download the correct drivers to your PC. Hold down Shift key and restart the PC. Choose Troubeshoot>Advanced Options>Startup Options and click Restart. On restarting, there will be a list of options. Choose 7 in the Options or click F7 on your keyboard and you will boot into the disabled mode. Now connect your phone and go to Device Manager in PC. Choose the phone which may be showing up as Unknown or with an yellow flag and right click and choose Update Driver. Navigate to the downloaded driver and install it. Now your phone should be properly recognised. Use adb pull command to copy whatever files you need to. Note that this driver signature verification disabling is temporary and when you restart the PC in the normal way, the PC will go back to the normal mode. But the installed drivers will still function.
Hope this helps.

tnsmani said:
If you had earlier connected your phone to the PC and authorised the PC connection on your phone, then it is a simple issue of disabling driver signature verification on Win 10 and installing the OnePlus drivers on it. Search for and download the correct drivers to your PC. Hold down Shift key and restart the PC. Choose Troubeshoot>Advanced Options>Startup Options and click Restart. On restarting, there will be a list of options. Choose 7 in the Options or click F7 on your keyboard and you will boot into the disabled mode. Now connect your phone and go to Device Manager in PC. Choose the phone which may be showing up as Unknown or with an yellow flag and right click and choose Update Driver. Navigate to the downloaded driver and install it. Now your phone should be properly recognised. Use adb pull command to copy whatever files you need to. Note that this driver signature verification disabling is temporary and when you restart the PC in the normal way, the PC will go back to the normal mode. But the installed drivers will still function.
Hope this helps.
Click to expand...
Click to collapse
Oh wow, do you know if this works on Win7? And also I can't see my screen at all, so could I do adb pull of entire folder or hardrive kind of thing? I mainly just want phots, but i've never done adb stuff so not sure how it works

Had the same issue with my Lenovo P2. Only i didn't have debugging enabled. If you have, screen mirroring should be an easy solution. You could just see ur phone screen on ur computer that way. What helped me was to forceboot the phone to recovery with the hardware buttons, then connect it to ur pc. TWRP will automatically launch MTP. When u backed up evrything, you can wipe ur device through adb

jsaden said:
Oh wow, do you know if this works on Win7? And also I can't see my screen at all, so could I do adb pull of entire folder or hardrive kind of thing? I mainly just want phots, but i've never done adb stuff so not sure how it works
Click to expand...
Click to collapse
I don't know about Win 7. It will work on Win 10. Most likely, this should not be needed in Win 7 at all as the drivers should install whether signed or not.
Regarding copying data, a simple command of "adb pull /sdcard" will copy all the folders, files, data etc to your PC. You can also specify where you want the data copied to, simply add the path to the command above. This will work whether your screen works or not. Of course, there are other methods of copying data, you can search for it if you need it.