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Hello,
I want upgrade my LG G2 with a new rom 5.xX
This phone have only the operator update. No custom, no trwp, nothing...
I installed drivers and when i want access to download mode. I can't. I use the good proccess with vol up then plug usb cable always with vol up presses.
follow this procces after a little moment my phone show me battery logo charging.
So i can't access to download mode.
I would use this process
t was NOT bricked. I finally tried playing around with the LG Mobile Support Tool (B2CAppSetup.exe). Of course it detected that my phone already had the latest firmware from T-Mobile, but then I clicked Options>Upgrade Recovery.
It downloaded for a while then I noticed it had put my phone into download mode (it said "Rooted" in red letters at the bottom). Then it flashed the same firmware over and I immediately tested, it entered download mode right away. But I didn't end up needing that as Stumproot was able to brute force it now after the recovery flash.
Anyway, I couldn't find an answer anywhere else. Most results also have a bricked phone, but that wasn't my issue. This solved my problem and maybe it could work for others.
but it's impossible for me to install B2appsetup on my pc the installation begin then stop after 5s then nothing.
I have Win 10.
Do you have a solution for me , please??
poupinej said:
Hello,
I want upgrade my LG G2 with a new rom 5.xX
This phone have only the operator update. No custom, no trwp, nothing...
I installed drivers and when i want access to download mode. I can't. I use the good proccess with vol up then plug usb cable always with vol up presses.
follow this procces after a little moment my phone show me battery logo charging.
So i can't access to download mode.
I would use this process
t was NOT bricked. I finally tried playing around with the LG Mobile Support Tool (B2CAppSetup.exe). Of course it detected that my phone already had the latest firmware from T-Mobile, but then I clicked Options>Upgrade Recovery.
It downloaded for a while then I noticed it had put my phone into download mode (it said "Rooted" in red letters at the bottom). Then it flashed the same firmware over and I immediately tested, it entered download mode right away. But I didn't end up needing that as Stumproot was able to brute force it now after the recovery flash.
Anyway, I couldn't find an answer anywhere else. Most results also have a bricked phone, but that wasn't my issue. This solved my problem and maybe it could work for others.
but it's impossible for me to install B2appsetup on my pc the installation begin then stop after 5s then nothing.
I have Win 10.
Do you have a solution for me , please??
Click to expand...
Click to collapse
so you have tmobile. right?
and only 5.0.2 lillipop is availabe stock.. if you go asop or cm the theres 5.1.1- 6.0
then do what the guide says to do here.
http://forum.xda-developers.com/showthread.php?t=2432476
I can't do that because I don't have the download mode
poupinej said:
I can't do that because I don't have the download mode
Click to expand...
Click to collapse
try the skr tools , with the nuke download . read as i havent used it but i read that might bring download. the other way is to short circuit the motherboard.. but ill go read skr tools if i was you.
So I usually don't have to post for help as I've been doing this for a while and don't usually get this stuck.
Situation:
Rooted V20 H918 (T-Mo variant) with TWRP installed and working fine on v10d.
Phone got a little warm this afternoon so I rebooted figuring a process had run away or something (you know android).
Phone reboots and comes up to the Firmware Update screen. Mind you this isn't the same screen that folks often confuse as bootloader. There's no ADB/fastboot access only serial over USB.
Load up LGUP with Uppercut and grab the v10i KDZ. That runs flawlessly, finishes the upgrade and reboots.
This is where things go pants up.
When it reboots, I still get the triangle warning screen saying that the bootloader is unlocked and then it goes right back to the firmware update screen.
Things I've tried:
I've attempted to get into TWRP/recovery (Volume Down). I know I did the buttons right because it does that whole asking me if I'm sure I want to wipe my device, blah blah blah... but then after answer Yes twice... back to firmware update.
I've attempted to get into bootloader (Volume Up). Nothing... Right back to firmware update screen.
I've successfully flashed a 10i KDZ file using LGUP (In upgrade mode since refurb mode isn't supported by that kdz) both with Uppercut and extracting the LGUPc.dll file out of the KDZ archive. It successfully completes, reboots and goes right back to the Firmware Update screen. No errors, no changes, still no recovery, still no fastboot.
I've attempted flashing the full 6-point-something gig 10d TOT file in refurb mode and that dies out at about 11% with an invalid response error.
I've attempted flashing the boot partition only TOTs and in refurb mode that gets to 99% then dies with the invalid response error.
I've attempted flashing the recovery only 10d TOT in both refurb and upgrade mode and they both say "unable to determine OS version" and LGUP crashes out.
Things I haven't done:
I haven't been playing with ROMs or kernels.
I haven't been flashing random zips
I haven't been editing system files at all.
I haven't been washing, chewing, attempting to flush down the toilet or otherwise abusing my device.
Really I haven't been tinkering. I only wanted root for a couple of things (Ad Away primarily). So I'm certain I've done nothing negligent to cause this.
So I'm at a loss. LGUP completes successfully but doesn't fix anything. Halp?
UPDATE: LG Support Tool previously said it had the latest version of all software 10d, but now doesn't read the software version and lets me kick off the Upgrade Recovery Function. That appears to chooch fine but then tells me that it can't proceed because the battery is low. Checking the battery with a multi-meter shows it at 4.30v which is 100% according to spec.
So close... yet so far...
Thoughts?
Did you try that?
https://forum.xda-developers.com/v20/how-to/h918-dll-lgup-t3535988
netgar said:
Did you try that?
https://forum.xda-developers.com/v20/how-to/h918-dll-lgup-t3535988
Click to expand...
Click to collapse
Did you read my post? Did you see that I actually posted said DLL to that thread you linked me to?
Yes, I've tried it.
So after getting around the low battery warning crap, I finally got the LGMobile Support Tool to attempt to do something.
Basically I have to go to recovery update, punch in my IMEI and it chooches along. I then got it to download the latest update which looked to be the H91810i_00.kdz as I was snooping in it's hidden "phone" folder under ProgramData\LGMOBILEAX\
As soon as the download completes it deletes this folder and the downloaded kdz without ever talking to the phone (Phone's serial console output never updates). And then this screen with what looks like untranslated text (attached since I can't figure out how to properly embed an attached image.)
I see I'm going to have to start a bounty to get some help. ?
So check it out. I did learn something about the v20 which is how to get it into fastboot mode directly. Best way to do it is to turn off the device, then plug in a USB cable (connected to power or computer) and about 0.5 to 0.75 seconds later, just hit the volume down button. Boom, fastboot.
Unfortunately for my device, the only thing I'm able to do is lock or unlock the bootloader. Getvars spits this out:
Note that bootloader and baseband versions are blank.
I'm unable to erase or flash anything, I get (Remote: Unknown Command.)
So I relocked the bootloader and got a replacement from TMO. I honestly don't know if my rooting it would have caused such a catastrophic failure. But to be sure, since I need my v20 to be reliable. I think I'll refrain from tinkering until it becomes much more stable. Such as life on the bleeding unsupported edge.
I was trying to update with LGUP application for firmware update but didn't success, so I removed the USB cable and pressed Volume down and power button to restart. But it went straight into Firmware Update and LGUP application can't find the port.
So, my phone is stucking in Firmware update screen, please help me how to restore the firmware and get out from Firmware Update screen, many thanks and greatly appreciated.
Hold the power button until you get a black screen. Download LG Mobile Support tool and the LG Drivers. Plug USB In and then hold the Power + Volume Up key. On your screen, click Upgrade Recovery. From there, you can do a factory reset through download mode of your phone.
Enter download mode and connect the phone in the PC. Download LG brige and open it. When you are inside the programe you will see a window of Software update enter here and there is an option that is for bad installation otas (to reinstall and correct errors). Use this and I think this will handle.
Another option I think is using LG Up you will see your device in download mode. Try to enter download mode and see if this works also.
Thanks both - I ran into a similar situation. I pulled down both the 11a and 14a KDZ files, and used UpperCut and LGUP to flash first the 14a and then the 11a image. Unfortunately in both cases after LGUP does its thing, I'm getting the LG logo, followed by fastboot screen.
I cannot reboot to get past it, and I cannot flash recovery (it says the boot loader is locked). I cannot flash the Unlock.bin from LG because apparently the KDZ re-enabled the software lock prohibiting bootloader unlocks.
So I'm suck with a phone that will only boot into fastboot, stock recovery or into download mode, and I cannot figure out how to get back to something functional. I've tried reflashing with LGUP - that doesn't work. And the LG Bridge "Update Error Recovery" option gives an error "Connect your mobile device to the USB Port" even though it is, and the LG USB drivers are installed.
Would appreciate any pointers someone could offer.
gewecht said:
Thanks both - I ran into a similar situation. I pulled down both the 11a and 14a KDZ files, and used UpperCut and LGUP to flash first the 14a and then the 11a image. Unfortunately in both cases after LGUP does its thing, I'm getting the LG logo, followed by fastboot screen.
I cannot reboot to get past it, and I cannot flash recovery (it says the boot loader is locked). I cannot flash the Unlock.bin from LG because apparently the KDZ re-enabled the software lock prohibiting bootloader unlocks.
So I'm suck with a phone that will only boot into fastboot, stock recovery or into download mode, and I cannot figure out how to get back to something functional. I've tried reflashing with LGUP - that doesn't work. And the LG Bridge "Update Error Recovery" option gives an error "Connect your mobile device to the USB Port" even though it is, and the LG USB drivers are installed.
Would appreciate any pointers someone could offer.
Click to expand...
Click to collapse
In older LG phones work LG Flashtool (2014)...Maybe with this you can flash KDZ firmware https://forum.xda-developers.com/showthread.php?t=2797190
gewecht said:
Thanks both - I ran into a similar situation. I pulled down both the 11a and 14a KDZ files, and used UpperCut and LGUP to flash first the 14a and then the 11a image. Unfortunately in both cases after LGUP does its thing, I'm getting the LG logo, followed by fastboot screen.
I cannot reboot to get past it, and I cannot flash recovery (it says the boot loader is locked). I cannot flash the Unlock.bin from LG because apparently the KDZ re-enabled the software lock prohibiting bootloader unlocks.
So I'm suck with a phone that will only boot into fastboot, stock recovery or into download mode, and I cannot figure out how to get back to something functional. I've tried reflashing with LGUP - that doesn't work. And the LG Bridge "Update Error Recovery" option gives an error "Connect your mobile device to the USB Port" even though it is, and the LG USB drivers are installed.
Would appreciate any pointers someone could offer.
Click to expand...
Click to collapse
I have the same issue - I was on Lineage os and flashing the OTA update caused bootloop to recovery. So I wanted to flash back to stock using LGUP and 14A. I did that before without issues.
This time though all installed fine but after reboot the phone immediately goes to fastboot, exactly as described above. I just spend several hours trying to fix it but with no results. The LG Bridge won't recognize the phone no matter what I do in Windows (tried 3 different PCs). On a Mac it will start connecting and will end up saying "you need to enable MTP connection".
From what I garther the stock rom flashed fine - the factory reset works, even shows "erasing data", the LG UP recognizes the phone as 14A (I tried 11A, 13A too - seems to install fine but goes immediately to fastboot after reboot).
The only thing I realized I did different when flashing the stock rom with LGUP was not using the original LG USB cable. But reflashing with original cable makes not difference now - still going to fastboot.
Any help would be greatly appreciated.
Have you guys been able to do the Upgrade recovery in the LG support tool? Did it work? It starts fine for me but after downloading the recovery file I always get and error, see the screenshot.
I was able to grab the kdz file and tried to flash it with LGUP but still the same thing. It seems like it flashes fine but after reboot it immediately goes to fastboot
kloubik said:
Have you guys been able to do the Upgrade recovery in the LG support tool? Did it work? It starts fine for me but after downloading the recovery file I always get and error, see the screenshot.
I was able to grab the kdz file and tried to flash it with LGUP but still the same thing. It seems like it flashes fine but after reboot it immediately goes to fastboot
Click to expand...
Click to collapse
Sadly I'm in the same boat as well. I'll pull some of their error messages I've gotten with LG Flash Tool this afternoon. I've tried 2014 and 2017. Both to no success.
I suspect it may be something with the /misc partition. Im going out on a limb, but I'm guessing that the AOSP and Lineage ROMs may touch misc. That partition may have some key identifiers for the LG tools. And the KDZ doesn't have a misc partition embedded inside it.
I was hoping the kdz file I was able to grab from the Lg Support tool would be different from regular stock rom 14a that is available around the internet but it appears to be exactly the same file (based on the file size). My original hope was that the file would support "Refurbish" option in the LGUP tool but it only works with "Upgrade".
I wonder if the "Refurbish" option would fix this and re-flashed all partitions - if only we could find a kdz file that would work with the refurbish option. So far all files I tried (11a, 13a, 14a) only support the upgrade option.
Thanks for all of your helps, I used LGUP and WondersMobile application on the computer and LGUP can not see the port. I did un-install the WondersMobile and LGUP can see the port and finally upgraded to latest firmware.
gewecht said:
Thanks both - I ran into a similar situation. I pulled down both the 11a and 14a KDZ files, and used UpperCut and LGUP to flash first the 14a and then the 11a image. Unfortunately in both cases after LGUP does its thing, I'm getting the LG logo, followed by fastboot screen.
I cannot reboot to get past it, and I cannot flash recovery (it says the boot loader is locked). I cannot flash the Unlock.bin from LG because apparently the KDZ re-enabled the software lock prohibiting bootloader unlocks.
So I'm suck with a phone that will only boot into fastboot, stock recovery or into download mode, and I cannot figure out how to get back to something functional. I've tried reflashing with LGUP - that doesn't work. And the LG Bridge "Update Error Recovery" option gives an error "Connect your mobile device to the USB Port" even though it is, and the LG USB drivers are installed.
Would appreciate any pointers someone could offer.
Click to expand...
Click to collapse
kloubik said:
I have the same issue - I was on Lineage os and flashing the OTA update caused bootloop to recovery. So I wanted to flash back to stock using LGUP and 14A. I did that before without issues.
This time though all installed fine but after reboot the phone immediately goes to fastboot, exactly as described above. I just spend several hours trying to fix it but with no results. The LG Bridge won't recognize the phone no matter what I do in Windows (tried 3 different PCs). On a Mac it will start connecting and will end up saying "you need to enable MTP connection".
From what I garther the stock rom flashed fine - the factory reset works, even shows "erasing data", the LG UP recognizes the phone as 14A (I tried 11A, 13A too - seems to install fine but goes immediately to fastboot after reboot).
The only thing I realized I did different when flashing the stock rom with LGUP was not using the original LG USB cable. But reflashing with original cable makes not difference now - still going to fastboot.
Any help would be greatly appreciated.
Click to expand...
Click to collapse
I too am having same problem. I've tried all the images from 11A to 14A, all of them flash with no errors on LGUP and every time LGUP detects the phone as having the last version flashed. Unfortunately, the phone also boots to fastboot every time. Nothing else to add to your descriptions at this time I'm afraid...
gewecht said:
Sadly I'm in the same boat as well. I'll pull some of their error messages I've gotten with LG Flash Tool this afternoon. I've tried 2014 and 2017. Both to no success.
I suspect it may be something with the /misc partition. Im going out on a limb, but I'm guessing that the AOSP and Lineage ROMs may touch misc. That partition may have some key identifiers for the LG tools. And the KDZ doesn't have a misc partition embedded inside it.
Click to expand...
Click to collapse
I am absolutely positive my problem is at least in part due to a messed up /misc partition though. @gqo actually described what I did pretty thoroughly in his thread, albeit in a G5. Post #9 has the fix but it didn't work for me.
I've also stumbled upon a menu under the Firmware Update screen that I had never seen before and cannot fin any mention to... Would any of you guys know what it is for? It reads something like:
Code:
** SELECT MENU **
** Select : Power Key(Long) **
** Move : Power Key(Short) **
-> MA-USB(WIFI) DL
POWER OFF
PHONE INFO
BACK
Okay, I figured it out. The menu, at least the first option, appears to be for Wi-Fi firmware update. I wonder what file the phone actually downloads... And if it would be able to fix our phones. The only unprotected network I had in hand was a mobile hotspot in my not-so-LTE Nexus 5, so I got as far the firmware download start but didn't risk it on such a slow and unpredictable network. On top of that my Nexus 5 has also gotten pretty good at bootlooping, that's why I got this G6 in the first place. If anyone out there has a reliable unprotected network and nerves of steel it could be interesting to see if the outcome of this update is different from the LGUP one.
How do you access this menu?
What I started working on yesterday is trying to build a image file for the Qualcomm Flash Image loader and see if I can flash the phone using this tool... But I have never used this tool before, right now it does not detect my phone - I need to work on that + see if I can correctly build the image file from kdz. I found some youtube step by step tutorials so we will see. I will post update on the progress tonight or tomorrow.
kloubik said:
How do you access this menu?
What I started working on yesterday is trying to build a image file for the Qualcomm Flash Image loader and see if I can flash the phone using this tool... But I have never used this tool before, right now it does not detect my phone - I need to work on that + see if I can correctly build the image file from kdz. I found some youtube step by step tutorials so we will see. I will post update on the progress tonight or tomorrow.
Click to expand...
Click to collapse
I'm not sure if there's a better way to do it, but I access it by removing the usb cable after I successfully get in Download Mode. Then I'm not sure if there's any specific key combo, I've been randomly pressing the power and the volume down buttons and at some point I get into that menu. In the menu though, for some reason, I think I can only select an option if I long press both the volume down and power buttons. The "POWER OFF" option has come in handy because so far is the only way I can actually turn my phone off. The "PHONE INFO" hasn't worked for me yet. The menu also reacts when you add/remove the microsd card... I wonder if it can be used for something other than a WiFi firmware upgrade. I haven't had the chance to connect the phone to a computer to see how the device is recognized, if at all.
And that image you're working on sounds like a neat idea, I wish I could help but I'm afraid I wouldn't have the skill. I may be able to test though. Anyway, Godspeed!
Unundra said:
I too am having same problem. I've tried all the images from 11A to 14A, all of them flash with no errors on LGUP and every time LGUP detects the phone as having the last version flashed. Unfortunately, the phone also boots to fastboot every time. Nothing else to add to your descriptions at this time I'm afraid...
I am absolutely positive my problem is at least in part due to a messed up /misc partition though. @gqo actually described what I did pretty thoroughly in his thread, albeit in a G5. Post #9 has the fix but it didn't work for me.
I've also stumbled upon a menu under the Firmware Update screen that I had never seen before and cannot fin any mention to... Would any of you guys know what it is for? It reads something like:
Code:
** SELECT MENU **
** Select : Power Key(Long) **
** Move : Power Key(Short) **
-> MA-USB(WIFI) DL
POWER OFF
PHONE INFO
BACK
Okay, I figured it out. The menu, at least the first option, appears to be for Wi-Fi firmware update. I wonder what file the phone actually downloads... And if it would be able to fix our phones. The only unprotected network I had in hand was a mobile hotspot in my not-so-LTE Nexus 5, so I got as far the firmware download start but didn't risk it on such a slow and unpredictable network. On top of that my Nexus 5 has also gotten pretty good at bootlooping, that's why I got this G6 in the first place. If anyone out there has a reliable unprotected network and nerves of steel it could be interesting to see if the outcome of this update is different from the LGUP one.
Click to expand...
Click to collapse
I'll play around a bit and see if I can land on this menu. At this point I'll try anything. I'm on an iPhone until I get this fixed - so I'm motivated!
I can setup an open guest network off my main wi-fi this evening and see what I can find out.
EDIT Sorry, I tried playing around here, but I couldn't figure out how to get back into the the menu you uncovered. If you could give some instructions on how to do it, I'm happy to give it a shot on my device.
I was able to access the menu today...what worked for me was at the firmware screen unplug the usb cable and then press volume down and power button three times quickly. I tried to connect to a wifi and it does not really do anything. I think it just establishes wifi connection but it does not download anything on it's own - it's waiting for another connection.
Also I got stuck with building the image file from kdz, it has no information on partitions. At this point I decided to ship to LG for a quote and will see how much they will ask for a reflash.
I got as far as selecting a network and getting some sort of a download start screen, but I interrupted it right away so I wasn't sure the download would actually go through... Apparently it does not. If this menu has some sort of flashing capabilities though, it might be worth checking how secure it is. If someone can get it to download and flash a modded file perhaps there could be a chance of flashing a custom recovery or something... I'm thinking about those guys that have an unlockable bootloader (which we ironically also have now).
Anyway, all of this goes well beyond my skill so I followed your example and submitted a repair service request to LG. It'll take quite long but shipping is free, so I figured I'd give it a try. I'm assuming this is an easy fix with the right software tools, so I hope LG doesn't overcharge for it. I'm even half hoping they'll do it under the limited warranty... If I recall correctly unlocking the bootloader doesn't immediately void all warranty, there's room to prove the bootloader was never actually unlocked. And after all LG does say that once unlocked, it cannot be undone and our phones are, in fact, running stock firmware and have a locked bootloader.
Update: My phone was received today by LG. In LG's Track Repair page, the status briefly showed as Undergoing Diagnostic but quickly moved to Repair In Progress, it's current status. Given that LG was supposed to contact me in case the repair was not covered by the limited warranty, meaning that an extra fee would've to be paid, I'm assuming the phone will be fixed (if possible, that is) free of charge. I will update you guys again soon, but if anyone out there is still struggling with this issue I'd recommend considering sending the phone to LG.
I have the exact same problem. Please keep us in the loop of what happens to your phone with LG
My phone has been received by LG for this issue on 9/26. It quickly moved through diagnostic to "repair in progress" on the first day plus showed ETA back to me in 6 business days. Ever since that it's stuck in that mode, no update or contact from LG. I check the status every day - every day it says the same - ETA 6 business days. It's been a week and half now with no update. I kind of expected it's going to take 2-3 weeks but annoyed that they say 6 days ETA and then you don't hear from anyone for almost 2 weeks with no change in status.
Update #2: The status finally moved to Shipped To Customer. I haven't been contacted by LG yet, so I guess the phone could've been shipped fixed as much as it could've been shipped as is for being unfixable. Either way, I wasn't and most likely won't be charged. FedEx hasn't got an ETA for the delivery, but I'll let you guys know as soon as I get my phone back.
Edit: Got an e-mail from LG. It reads something like:
Defect: Software failure
Payment Type: NOT APPLICABLE
Repair Results: S/W upgrade (download)
Repair Cost: $ 0.00
Warranty Status: In Warranty
Tax: $ 0.00
Total: $ 0.00
I guess I got away with it, I hope you guys do too.
Sent from my Nexus 5 using Tapatalk
I seem to have encountered quite the predicament. My VS995 doesn't boot any more. It shows the "Your device is corrupt. It cannot be trusted, and will not boot" message that it always has, but then it reboots and shows it again, and repeats that process forever. I cannot boot into TWRP or Fastboot mode, but Download mode still works. Upon entering download mode, the little box at the bottom says "633A B50 Modified" and the loading bar says 0%. I don't have a Windows computer (all my computers run some variant of Linux Mint) and have been using a Windows 7 VM in VirtualBox. Device manager and LG Flash Tool recognize the phone, but LG Flash Tool fails to flash it at 4% claiming an "RX Timeout" error no matter what I do with it, and the little box in the phone's download mode changes to say "633A B25 Modified." LGUP (with or without Uppercut) simply says "Unknown [COM41,]" followed by "You must select a known model, please."
I tried following this guide (https://forum.xda-developers.com/v20/how-to/guide-lg-v20-to-life-t3827732) and several others around the internet to no avail. Does anybody have any idea if this phone can be saved? Or is it destined to the dump?
Since you still get the "device is corrupt" message, you still have the engineering aboot, so you have full fastboot.
Download the KDZ for you phone and extract it. (Search, there are lots of good posts on extracting KDZs)
Boot to fastboot. With the phone off, hold vol DOWN and plug in the USB cable.
fastboot flash twrp.img recovery
fastboot reboot
Then use the key combo to try and get to TWRP. If you can't then you probably have a hardware problem (bad NAND).
Whatever you do, don't do anything that will overwrite aboot or you have a 0% chance of fixing your phone.
-- Brian
runningnak3d said:
<snip>
-- Brian
Click to expand...
Click to collapse
You boot into fastboot by holding volume down and plugging the phone into a computer, correct? Whenever I do that it just shows the "device is corrupt" screen and does the reboot loop. I can only ever get to download mode.
Try this no guaranty it will work start LG up on your computer plug in device then remove battery from device and then reboot your computer without killing LG up then put battery back in phone and restart LG up......see what happens.
Kiraisuki said:
You boot into fastboot by holding volume down and plugging the phone into a computer, correct? Whenever I do that it just shows the "device is corrupt" screen and does the reboot loop. I can only ever get to download mode.
Click to expand...
Click to collapse
When did this start? Did you do anything to your phone, or did you reboot it and it just started doing this?
-- Brian
runningnak3d said:
<snip>
-- Brian
Click to expand...
Click to collapse
For reference, I bought it used (but tested working) on eBay a month ago. First, the SD slot corrupted my SD card and then started saying the SD was not compatible with the phone. Then the SIM slot stopped reading the SIM, so I restored a backup I had made a couple days ago in TWRP and it didn't fix it. I tried dirty flashing the ROM, then clean flashing a few other ROMs, but nothing fixed either slot. After a little more of this flashing, I rebooted and the phone started doing this.
It sounds like with the flashing you did, you restored the stock aboot while you still had a modified recovery (TWRP) and modified boot (rooted) .. that is the reason you can only get to download mode -- since laf wasn't modified.
The RX timeout you are getting sounds like you have a marginal USB port or cable, you need to try flashing on another PC, and don't use VBox. I think you can still save your phone...
-- Brian
If your bootloader is unlocked then you can fix your phone, if not then i had the same problem, repaired it from market, I think he used some kind of box(maybe octopus) and got it fixed.
runningnak3d said:
<snip>
-- Brian
Click to expand...
Click to collapse
I installed Windows 7 onto a laptop and installed the programs on it. LG Flash Tool still failed at 4% claiming the KDZ and DZ didn't support something (I couldn't read it because the box was too small and it didn't scroll) but LGUP via Uppercut recognized the phone and flashed it! The phone booted to a screen with a big red 2 on it, then I reflashed it with the same KDZ in LGUP and it booted, but now it's bootlooping. I waited about 20 minutes and it didn't boot beyond the Verizon boot animation.
Kiraisuki said:
I installed Windows 7 onto a laptop and installed the programs on it. LG Flash Tool still failed at 4% claiming the KDZ and DZ didn't support something (I couldn't read it because the box was too small and it didn't scroll) but LGUP via Uppercut recognized the phone and flashed it! The phone booted to a screen with a big red 2 on it, then I reflashed it with the same KDZ in LGUP and it booted, but now it's bootlooping. I waited about 20 minutes and it didn't boot beyond the Verizon boot animation.
Click to expand...
Click to collapse
It sounds like you have a hardware problem with the NAND chip on your phone. That is the only thing that makes sense as to why you were able to get it to boot, but now it bootloops.
The data on the NAND is good enough for one boot, but then becomes corrupt....
-- Brian
runningnak3d said:
<snip>
-- Brian
Click to expand...
Click to collapse
Could the bad NAND have also caused the SIM and SD slots to stop functioning, or did the phone just basically disintegrate in my hands?
The firmware could have had problems, or whatever hardware failure messed up your NAND also toasted those.
-- Brian
runningnak3d said:
<snip>
-- Brian
Click to expand...
Click to collapse
Well that stinks. For the month I owned it, the LG V20 was the best phone I've owned so far. Oh well, thanks for helping me.
Same Boat
Kiraisuki said:
I seem to have encountered quite the predicament. My VS995 doesn't boot any more. It shows the "Your device is corrupt. It cannot be trusted, and will not boot" message that it always has, but then it reboots and shows it again, and repeats that process forever. I cannot boot into TWRP or Fastboot mode, but Download mode still works. Upon entering download mode, the little box at the bottom says "633A B50 Modified" and the loading bar says 0%. I don't have a Windows computer (all my computers run some variant of Linux Mint) and have been using a Windows 7 VM in VirtualBox. Device manager and LG Flash Tool recognize the phone, but LG Flash Tool fails to flash it at 4% claiming an "RX Timeout" error no matter what I do with it, and the little box in the phone's download mode changes to say "633A B25 Modified." LGUP (with or without Uppercut) simply says "Unknown [COM41,]" followed by "You must select a known model, please."
I tried following this guide (https://forum.xda-developers.com/v20/how-to/guide-lg-v20-to-life-t3827732) and several others around the internet to no avail. Does anybody have any idea if this phone can be saved? Or is it destined to the dump?
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I was hoping there was a solution to Kiraisuki's post as I having similar symptoms with my phone.
My V20 is a US996 BPT with a locked boot-loader. Mine will crash apps, stop at 4% via LG Flash, then reboot into "Your device is corrupt. It cannot be trusted" then lock into the LG logo until I pull the battery 3 or 4 times forcing a restart. I also have the same results with LG Bridge.
Does the NAND chip itself fail or could the chip be reflowed to the board with a little precision work?
Hello guys,
I'm fairly certain I'm stuck in an un-debrickable state but I'll ask just in case. My phone is F800K.
I was toying around with LGUP in order to downgrade and root my phone. So far, so good.
I then tried to update to the latest android 9 again, but keep the root active. That's where things started to go south, so I decided to go back.
I followed a couple of "back to stock" guides but now I'm screwed.
- The phone does not boot.
- Download mode is broken, the phone doesn't connect to my computer while in download mode, so it's unusable.
- TWRP is gone. When I try to boot to recovery after yes both times I get nothing. Not the stock recovery and not TWRP, it just tries to boot as usual.
- Can't seem to go back into fastboot either. I tried VOLDOWN + plug-in the phone about 200 times now, to no avail.
Is there another way that I'm missing ?
Thanks.
growiel said:
Hello guys,
I'm fairly certain I'm stuck in an un-debrickable state but I'll ask just in case. My phone is F800K.
I was toying around with LGUP in order to downgrade and root my phone. So far, so good.
I then tried to update to the latest android 9 again, but keep the root active. That's where things started to go south, so I decided to go back.
I followed a couple of "back to stock" guides but now I'm screwed.
- The phone does not boot.
- Download mode is broken, the phone doesn't connect to my computer while in download mode, so it's unusable.
- TWRP is gone. When I try to boot to recovery after yes both times I get nothing. Not the stock recovery and not TWRP, it just tries to boot as usual.
- Can't seem to go back into fastboot either. I tried VOLDOWN + plug-in the phone about 200 times now, to no avail.
Is there another way that I'm missing ?
Thanks.
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It does sound like a hard brick... you said fastboot is hosed, do you have access to adb in any way?
Sent from my moto g(6) play using Tapatalk
None that I know of, that's the issue. If I had access to either fastboot, adb or download mode, I could most likely salvage this, but I can't seem to be able to.
The weirdest thing is the broken download mode, I couldn't find anybody with the same issue...
growiel said:
None that I know of, that's the issue. If I had access to either fastboot, adb or download mode, I could most likely salvage this, but I can't seem to be able to.
The weirdest thing is the broken download mode, I couldn't find anybody with the same issue...
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On my lg tribute HD (ls676) fastboot was removed by lg themselves on Android 6.0.1 quietly with a security update and download mode never worked right for me. Without access to fastboot, adb or even diag mode it really sounds like you have a hard brick. if i can find a solution of some kind, I'll definitely let you know.
Sent from my moto g(6) play using Tapatalk
What would "diag mode" be and how can I check if I can access it ?
Small update for people who stumble upon this thread, I managed to save my phone by using the Qualcomm Test Point, see here: https://forum.xda-developers.com/showpost.php?p=81697447&postcount=128