My smartphone LG V20 h910
after installed LineageOS android 9
everything was fine, but then I wanted to return the stock Nugat 7.0 back, but in the end now my phone is hanging on the LG splash screen.
Now I don’t know what to do, the computer sees the phone as a COM port, LGUP does not recognize (unknown device).
the uppercut also does not recognize
LG Flash Tool (Commode Fail)
Is it possible that the problem is with the USB Type C?
Duplicate thread closed
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Hi, I was looking everywhere since yesterday but can't find a solution. I had cwm + twpr + lollipop cm12. I've decided to back to stock, so as allways: driver, b2cApp, kdz, v20h and v10a, usb, s/w mode, xml parser, shhtp, etc... Standard offline kdz method. But during flashing I stuck on 15% and get the info that my phone anad pc are not connected by usb cable, I tried changing usb ports at pc, reinstaling everything, but I have still the same error. If that woldn't be much enough I ****ed something up and I think I don't have any recovery right now
I can put my phone in s/w mode but I stuck on 15% with usb not connected error.
I can put my phone in fastboot mode but my pc does not recognize it, its just pluging in and out it from windows.
I can put my phone in stuck on LG logo 'mode'
Any help? How to unbrick it? How to flash stock or at least some custom recovery? Of course unlocked bootloader. Please help me :crying:
Key it ****ed up even more.
When kdz show me to connect my cable i clicked retry, plugen cable out and in, kdz found my device, and go to step 2. In half way I had again the same error, so again clicked retry, plug out, plug in. Again founded my device, when I had downloaded 100%, same situation. founded my device, log that tool is extracting kdz and nothing. Waiting about ~1,5h, nothing happend, so I diconected cable. In that moment kdz go to third step and I get windows force close for not repodnig app kdz. I said a loud **** and started again. Phone has not been found anymore by kdz. After a few tries, booted to fastboot, and connected to computer. It has been found as Google Fasbtoo USB, no way to update driver to fastboot. I disconected phone and decided to try again with s/w but nope. S/W not turning on anymore (with or without battery). Fastboot not turning on any more. Just LG logo, when I'm connecting device to PC it is sometging pluging in and out but nothing showing in device manager
Any ideas? Please!
I have the SAME problem with my (now old) LG... I read more than 20 tutorials for getting back to stock and nothing
Sent from my GT-I9205 using XDA Free mobile app
I triend on clen frsh windows I get OMAP device, fastboot is finding my device but wont start fastboot mode in my phone, when trying to flash cwm I get security error and still no s/w mode So I'm affraid that we have to say goodbay to our L9
What's more:
1. Can't find orginal p760 recovery, tried to flash p769 and I get wird effect, after LG logo screen looks like broekrn, some color stripes and all display going to white, then turn off.
2. Using fastboot and choosing options wit u-boot making my phone turning to LG logo with no security error, still no s/w, fastboot or recovery mode.
3. Using option 1 (1. Fastboot) from the fastboot tool is making my phone turnig black screen and nothin more, no even LG logo.
Please can anyone help us?
Hello my g5 wont boot up its vibrate but display still black and in lgup show model unknown com3,
i installed all drivers on the right path (H850) so now i cant flash stock kdz. i think i flashed a wrong rom bootloader is unlocked
sorry for my bad english... still hope for help
Try holing volume up while connecting USB then flash KDZ with LGUP
When i connect my phone with holding volume up to my pc, sound a signal and in device manager shows under port 4 lge android phone... com41 ive tried many other coms, but LGUP shows Unknown Model com41... LGUP show wen i press select i musst select a known model. Ive tried diffrent LGUP version from other thread an diffrent lg g5 dll. with lg flash tool 2.0.1.6 shows when i beginn to start (S) Failed to Load... ive reading this version wont work for all... but older version is not compatible to lg g5...
Thanks for your help
Hello everyone,
My dad has a Lg Leon H340F, which I tried to update without success to Android Marshmallow I followed the post "How to update LG Leon H340N to Android M and Unlock the Bootloader"
The first time I flash it, the tool showed that it was completed successfully but the phone didn't turn on, it was in a bootlop,
I thought I had done something wrong, so I tried again,
the second time the phone showed "COM5" while was flashing, the tool again showed the process was successfully completed but the phone was still in a bootloop, it no longer allowed me to enter the download mode,
When I connected it to the computer by pressing the volume down button, the charging icon appeared, the LG Flash Tool program no longer recognized it.
When I turned it on normally and while it was in the bootloop I connected it to the computer, it emitted the sound that something had been connectedt, but the LG Flash Tool did not recognize it either.
I thought all was lost,
I decided to try it with the official tool LG Mobile Support Tool, It did not recognize it either,
Then I realized that there was an option called "recovery error update" in which I was asked for the IMEI number, I entered it, and later it began to download the firmware, and was successfully installed on the smartphone.
Now he's alive, with lollipop, but alive.
I do not know if it will work in other cases, but give it a chance.
After being stuck in qloader 9008 mode, I decided to flash the kdz to a micro sd card using eMMC software download as I saw other people do it with their phones and it working fine. However, when I put the sd card into the phone, the screen was still black but this time instead of qloader 9008, it detected as AndrodNet USB Serial Port. When that came up, I thought I could use LGUP but there's a problem with every LG tool I used.
LGUP Would Show unknown model and show a com port number and nothing after it. When I did select that port it would say "you have to select a known model please"
When I used LG FlashTool 1.8.1, every time I would load a firmware and press the yellow arrow, It would say "Failed PreviousLoad()". (I know this software works because I have tried it on different phones and it would work)
When I use LG Bridge, I'd select update error recovery and it would go on "checking device information" and would return back with "connect your mobile device to the USB port. If it is already connected, contact LG customer service.
When I use LG Flash Tool 2014, It would say "problem with communication between cell phone and PC"
Does anybody have any other ideas or tools for me to try? All help I can get is appreciated. Or was it better to be stuck in qloader9008 mode?
How about good morning friends.
I had a problem recently, I tried to update my LG to Android 10 to the Android 10 version, but at 80% the cable moved and there was a failure in the update, so the phone was left with screen off, which was recognized by the PC in 9008 mode, I looked for a tutorial that said to flash some Laf A and B files, But at the time of doing it, the video asked me to reboot it. But it was one of the biggest mistakes. The PC no longer recognized the phone in 9008 mode, it only felt lukewarm implying that it was charging.
Will there be a solution?
Please help.
Did you flash the laf a and laf b? If so, can you boot to download mode now with vol up + plug in phone?