Hi, I'm attempting to use LG FlashTool to reset my LG G3 (D850) to stock due to a bootloop. I've tried using the correct dll file, a different file that might bypass, and I can't get past that point. Also my computer wouldn't recognize the installed LG drivers so I had to set Qualcomm 9008 to COM41 (normally COM3). I'm at a complete loss and have been trying for hours. Any help would be appreciated.
35tomycity said:
Hi, I'm attempting to use LG FlashTool to reset my LG G3 (D850) to stock due to a bootloop. I've tried using the correct dll file, a different file that might bypass, and I can't get past that point. Also my computer wouldn't recognize the installed LG drivers so I had to set Qualcomm 9008 to COM41 (normally COM3). I'm at a complete loss and have been trying for hours. Any help would be appreciated.
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Your using a USB 2.0 port correct? Usb 3.0 won't work and can cause this issue. The same goes for using an LG cable or oem type cable and not a generic USB cable.
Phone is IN download mode correct?
Also if your seeing Qualcomm 9008 in the device manager that means you have a semi or hard brick. What's the reason your device is in bootloop? What was flashed to cause that?
Sent from my iPhone using Tapatalk
hyelton said:
Your using a USB 2.0 port correct? Usb 3.0 won't work and can cause this issue. The same goes for using an LG cable or oem type cable and not a generic USB cable.
Phone is IN download mode correct?
Also if your seeing Qualcomm 9008 in the device manager that means you have a semi or hard brick. What's the reason your device is in bootloop? What was flashed to cause that?
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I'll verify I'm using a USB 2.0 and that I'm using different cables. Yes, phone is in download mode. That I don't know, I bought it on eBay thinking it'd be an easy fix
35tomycity said:
I'll verify I'm using a USB 2.0 and that I'm using different cables. Yes, phone is in download mode. That I don't know, I bought it on eBay thinking it'd be an easy fix
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Okay just making sure.
Yeah Qualcomm 9008 normally means hardware failure or someone's has flashed a firmware that where not supposed to which could of lost its IMEI as well in the process making it a wifi only device.
There's an "unbrick" guide somewhere in the G3 general section. It does involve taking the phone apart and shorting some pins but it's worth a shot.
Sent from my iPhone using Tapatalk
Related
Hi, I bought some months ago my LG Optimus 3D.
I rooted it, installed CWM recovery, and flashed a custom rom (after trying a bit ones).
But when I tried to connect my new-customized optimus 3d as a usb mass storage it didn't work anymore: my PC seemed like to not recognize my o3d, even if it installed the following drivers:
LGE Mobile Composite USB Device
LGE mobile USB Serial Port (COM47)
LGE mobile USB Modem
Anyway, I managed to flash the stock firmware with LG FlashTool. Everything worked well, but when I tried to connect my stock o3d to the computer... the USB was still broken!!
Then I sent the phone to LG; they said me they have reflashed the stock rom, and that my phone hadn't got any problem.
Anyway I got it back: I tried to reconnect the phone to the PC and magically the USB was working!
So, I rooted it and tried a few custom rom..... at the first time the usb was working very well, but after some days I got the same problem: now the USB doesn't work anymore, and I don't want to flash a stock rom...
Any suggestion? What should I do in order to fix my USB connection?
I tried to connect the phone with different usb cables, and in five different PCs (LG drivers were installed in every PC).
The PCs seem to recognize my O3D as:
LGE Mobile Composite USB Device
LGE mobile USB Serial Port (COM47)
LGE mobile USB Modem
instead of:
LGE Android Platform Composite USB Device
LGE Android Platform USB Modem
LGE Android Platform USB Serial Port
LGE Android Platform USB GPS NMEA Port
Android PlatformSooner Single ADB Interface
LGE Cosmo USB Device
LGE CosmoExt USB Device
(I got that list when I connected the phone after I've got it back from LG)
I dunno i am noobie on this, check my post count..
But try to disable USb debugging..
Yeah, I tried to connect the phone with both enabled and disabled usb debugging. I also tried to mount the usb through CWM recovery but nothing.. It doesn't work.
The last thing I've done before the usb stopped working was flashing the CWM touch recovery through PC...
Did you install the LG USB drivers?
pandaball said:
Did you install the LG USB drivers?
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Of course I did it!
The easiest way would be to uninstall ALL LG drivers.
Then reinstall after a reboot.
The Dark Lestat said:
The easiest way would be to uninstall ALL LG drivers.
Then reinstall after a reboot.
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I don't think this will solve the problem... but I'll try!
The strangest thing is that LG FlashTool lets me flash a stock rom and a different baseband... So, it cannot be a hardware problem!
Ok guys I SOLVED THE PROBLEM!
The solution was to take out the battery for 10 minutes.
When turned on and connected, the USB worked properly!
P.S.: I don't know why...
Delux9364 said:
Ok guys I SOLVED THE PROBLEM!
The solution was to take out the battery for 10 minutes.
When turned on and connected, the USB worked properly!
P.S.: I don't know why...
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I CAN NOT BELIEVE THAT WORKED... THANK YOU SO MUCH!!!! ive been spending all day trying all sorts of things, and all i had to do was take out the battery for a second -___- i have a galaxy s3 btw
Delux9364 said:
Ok guys I SOLVED THE PROBLEM!
The solution was to take out the battery for 10 minutes.
When turned on and connected, the USB worked properly!
P.S.: I don't know why...
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Are these guys for real???
Sonic Marvel said:
I CAN NOT BELIEVE THAT WORKED... THANK YOU SO MUCH!!!! ive been spending all day trying all sorts of things, and all i had to do was take out the battery for a second -___- i have a galaxy s3 btw
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Sent from my LG-SU760 using xda app-developers app
So I have a Galaxy S 4G that I can not get to be recognized by my computer via USB. It charges fine but always get "USB device not recognized". It's on stock froyo and I have tried several cables and computers as well as versions of drivers so I assume it's a faulty usb port on the phone.
I looked at this thread : http://forum.xda-developers.com/showthread.php?t=1099374
And it seems that it was possible to flash cwm from recovery and then flash a custom kernel that gave root access? But links have been removed and thread closed and replaced by one that requires gingerbread. Does anyone know of any way to root on froyo without usb cable? or have the files that were removed from the thread above?
Any suggestions at all?
Fix your USB port.
try heimdall?
Visit your local library and use a computer there to root. Having fun isn't hard when you got a library card.
pisherthefisher said:
Visit your local library and use a computer there to root. Having fun isn't hard when you got a library card.
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Most free-to-the-public computers are so locked down that I doubt he'll be able to get drivers installed.
FBis251 said:
Most free-to-the-public computers are so locked down that I doubt he'll be able to get drivers installed.
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The ones in smaller towns usually aren't, or their security is easily bypassed with ctrl-alt-delete or similar combinations
thanks for the responses but it seems that I need to clarify that it looks like it's the usb port on the phone that is defective and not the computer. My Galaxy s3 and tab 7.7 connects just fine with odin using same computers and drivers that I can't get to recognize this phone.
And yes I did try heimdall but since the computer does not see the phone heimdall won't either
Nothing else I can do to get root? I would not mind about being stuck on froyo I just need root to install vodoo sound.
^ How do you charge your phone if your USB port is busted?
If it is charging well, then I suspect there is a conflict in drivers.
Rebel_X said:
^ How do you charge your phone if your USB port is busted?
If it is charging well, then I suspect there is a conflict in drivers.
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If the power and ground pins are active, it will charge, but if the data +/- pins arent' connected, you can charge but not transmit data. My USB cord did that to me, will charge, but won't show "usb mode" to connect for usb storage. Thought it was the rom, flashed 4 times, realized the cord must have a break in the VCC+/- wires.
I have tried all the drivers and did all the research I could do. I downloaded Google universal driver, Koush drivers, and LG drivers but I still get a "USB device not recognized" error. I have turned on/turned off USB debug and checked MTP in the setting. One thing to note is that I am not using the original LG USB. Could this be the case? I can't seem to wrap my head around why using a non-OEM cable would prevent the computer from recognizing the phone though. I have tried all of the non-OEM cable I have and none works.
Have anyone had this problem and solved it?
PS. my phone is stock 4.4.2
Kknguy said:
I have tried all the drivers and did all the research I could do. I downloaded Google universal driver, Koush drivers, and LG drivers but I still get a "USB device not recognized" error. I have turned on/turned off USB debug and checked MTP in the setting. One thing to note is that I am not using the original LG USB. Could this be the case? I can't seem to wrap my head around why using a non-OEM cable would prevent the computer from recognizing the phone though. I have tried all of the non-OEM cable I have and none works.
Have anyone had this problem and solved it?
PS. my phone is stock 4.4.2
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I'm in the same boat and I'm using the came that came with the G2. Its not just you. I about pulled my hair out after trying to get it to work for 4 hours yesterday
Sent from my LG-D801 using Tapatalk
alexnaoumi said:
I'm in the same boat and I'm using the came that came with the G2. Its not just you. I about pulled my hair out after trying to get it to work for 4 hours yesterday
Sent from my LG-D801 using Tapatalk
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I just tried my buddy original LG USB and it STILL doesn't work...I'm out of ideas
Kknguy said:
I just tried my buddy original LG USB and it STILL doesn't work...I'm out of ideas
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Check the device manager on your PC. you might need to install some software to have it work.
Hi there! As from the subject, I got a N5 which I'm trying to unbrick using the flashtool + TOT + DLL procedure; the issue is, after installing all the necessary drivers, the phone should be recognized as LGE Mobile USB Serial Port, but mine is recognized as LGE AndroidNET USB Serial Port, plus it doesn't show the "download mode" picture; in this way, the flashtool gives an error as it can't recognize in which mode the device is set at the moment.
Any suggestions for this? I read pages and pages of threads but I didn't find anything that worked, perhaps someone bumped into this issue and can help me
same issue
slimhunter said:
Hi there! As from the subject, I got a N5 which I'm trying to unbrick using the flashtool + TOT + DLL procedure; the issue is, after installing all the necessary drivers, the phone should be recognized as LGE Mobile USB Serial Port, but mine is recognized as LGE AndroidNET USB Serial Port, plus it doesn't show the "download mode" picture; in this way, the flashtool gives an error as it can't recognize in which mode the device is set at the moment.
Any suggestions for this? I read pages and pages of threads but I didn't find anything that worked, perhaps someone bumped into this issue and can help me
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did you fixed it im facing same issue fastboot is also not coming to me
I'm wondering if anyone has a Nexus 5 D821 motherboard in working condition that they would like to get rid of. Or if anyone knows of a way to get into Qualcomm 9008 mode from LGE Android Platform USB Serial Port. The phone seems dead, doesnt react to button presses, Vol Up+Vol Down+ Power doesnt change anything, the phone restarts back into LGE Android Platform USB Serial Port mode. No download mode. From what I know my EMMC wasn't dead (passed all the Board Diag Tests). Phone died after I flashed SBL1 with boarddiag (Even though I was told not to...)
There is a guide in general forums.
wangdaning said:
There is a guide in general forums.
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Any links? From what i know i have tried all of them (LG flash tool, Board diag) I just cant get the phone to show up as anything other than the LGE Android Platform USB Serial Port
Excudent said:
Any links? From what i know i have tried all of them (LG flash tool, Board diag) I just cant get the phone to show up as anything other than the LGE Android Platform USB Serial Port
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I hard bricked my phone yesterday and was stressing out quite a bit! Luckily I found this guide: http://forum.xda-developers.com/yureka/help/question-qualcomm-download-mode-k-t3068040
Note: I assume that you know what you are doing. Since you know about Qualcomm HS-USB QDLoader 9008 mode, you probably do, but you can do some serious harm with this mode.
Essentially, the gist of the guide comes down to installing the qualcomm drivers so that the phone becomes detected as a Qualcomm HS-USB QDLoader 9008. After this, you can use Boarddiag as you are used to to reflash the partitions. Note that for me, the phone was not in sahara dload mode and Boarddiag would not work. What I had to do was the following (these steps are done after the drivers are properly installed)
Unplug the Nexus 5 from your computer
Open the back cover and remove the 6 top screws holding the other protective cover
Disconnect the battery cable for 5 seconds. Reconnect it after
While holding the volume up and down button, plug it into your computer. It should now be in Sahara download mode and Boarddiag should work.
Let me know how everything goes!