I had a custom OS installed but didn't like it anymore. So I decided to return to stock.
I thought the most clean way would be to just flash a clean .kdz file through uppercut. So I backed up my stuff, downloaded an Oreo kdz and tried to flash it but got an invalid command response error. Since this point i couldnt boot anymore. Whenever I reboot with Volume Up + Power I just get into the Firmware Update Screen again. I've read that there might be slight differences between the versions of kdzs, so I downloaded mutliple others and tried to flash them aswell (All downloads were from lg-firmwares, which I considered to be reputable). I also varied the Android Versions because no Oreo kdz worked.
Since all of that didnt work I started to look for alternatives to LGUP + Uppercut. I tried LG-FlashTool which gave me an Error ("required info cannot be found" iirc), LG-Bridge doesn't even open up, LG-SupportTool says that upgrades are unavailable and greys out the reset upgrade errors option. At one point of the whole process I noticed that LGUP now started to say "please use latest dll" which was new. This Error now appears everytime when I try to flash somehting with uppercut, even after reinstalling or placing lgup_common.dll into LGUP/model/Common.
When I try to install a kdz just through LGUP without uppercut i get a "fail write backup partition" error.
Throughout the Process I reinstalled everything at least once and also reinstalled the usb-drivers multiple times. I now noticed that my Phone is not even recognised by adb. All of this problems are not limited to my main computer since I tried the same things on two other laptops. I also tried different usb cables.
At this point I am rather exhausted and have no more ideas. I don't know where i f*cked up, but I did.
What else could I try to get my phone to boot again? I'd appreciate every help.
EDIT:
Got it working. For anyone with the same problem: Just try it again and again. For me LGUP WITHOUT Uppercut and an oreo kdz worked after like the 20th attempt.
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So I bricked it good.
This isn't working.
https://forum.xda-developers.com/v20/how-to/restore-v20-to-100-stock-bricked-devices-t3524903
I successfully went from 14b to 12a, started the root and ended up getting stuck at a static screen, after wiping with twrp and rebooting. Followed some steps to hopefully eliminate the static but in doing so I was at 30 mins no boot. (3 times) I decided why not start over and went to flash the 12a kdz again, and now everything I do gets me back into "Firmware Update" I can get to stock recovery, which doesn't make sense as I had TWRP, flashed.
Every option in the stock recovery, sends me back to the "firmware update screen" I've tried countless times to kdz flash with LGUP, everything is detected no issues, just fails usually at 11-13%
Here's a picture of LGUP errors
http://imgur.com/a/p9v5g
I was thinking of trying to use either 13a or 14b kdz but I've hit my download limit for the day from the site (its 2 by the way) the 14b download failed as my internet kicked out.
I have the 12a .kdz, and a 12a.dz and the ability to extra the .dll (that method also didnt work) I've got to missing something here. I've had the phone for 4 days and its a paper weight now. (A free paper weight but that doesn't make it any better)
Please help... thank you
I have used lg up twice months ago. Never had any issues with it. Try running it as admin.
Datblkbro said:
I have used lg up twice months ago. Never had any issues with it. Try running it as admin.
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I'm running uppercut as admin to no avail. Do you think because its on 12a, and I'm trying to flash 12a?
Edit :
Apparently you cant flash the same kdz, as the version youre on. The14b finally finished downloading anmd it worked first time. This can get closed now. Thanks!
Ok so to start i got my bootloader code, did the Oem line in adb all went well, used the greatslon us M3 Twrp, said it went through ok, tried to boot using the volume up an down as well as power just boots to blackscreen then does nothing. if i let it just boot into factory android it runs for a min and then forces a reboot, oh and my model is the CPN-W09 which i think is the issue upon reading, the Greatslon twrp is for a dif version of M3 then mine, so i tried the erecovery it says im not supported, i tried restore through hisuite says not supported, i try and do a factory reset but unit powers off before it can complete. Any ideas what i can do?
I had that issue with my first M3, even though it's a BAH-W09. Since it was US version and I didn't catch there being a difference between it and the international/European BTV-W09, I screwed it up. I was never able to get back to full operation, but that was mostly out of irritation and the ease at which I could return it for a replacement.
That being said, there are full-update firmwares out there, you'll need to spend some time on Google/search engine of choice to find them. Once you have one, you'll need the firmware extractor to pull the update apart into the individual .img files, which can then be flashed using fastboot.
I'd start with https://forum.xda-developers.com/tools/general/huawei-firmware-finder-team-mt-t3469146 - this is a firmware finder that should be able to find and download firmware updates for you (Windows only, I believe)
Then https://forum.xda-developers.com/showthread.php?t=2433454 - this should be able to pull the firmware apart for you. This was the part I got stuck on and initiated my return after, but I'm sure it works, I just wanted the easy way out
So earlier today i received my phone back from repair, they replace the mobo. All seems good, phone works. So i unlocked the phone following this guide, same as last time: https://forum.xda-developers.com/lg-g6/how-to/official-lg-g6-bootloader-unlock-t3614719
It's a H870 and everything went fine. twrp boots fine, LG's USB drivers are installed and windows detects the phone fine. I wiped the phone entering "yes" trying to install fulmics. That didn't work as it bootlooped, so i went back re-wiped the phone.
I then tried to transfer stock [ROM][H870][Stock] OPEN EU LG-H870 10T ROM. It transfers 1.8gb of the 2.5gb before stalling, not getting any further and transfer eventually fails.
Right now i'm trying to transfer the LOS rom, but nope. Not getting any % and 5 min later the transfer fails.
I can enter bootloader and i can enter twrp.
So right now i'm guessing it's bricked. Searching the forums finds some users using something called uppercut but information seems very limited. Not sure what to do or how to do it.
Edit: So this is still a new phone to me, loads of stuff i don't know. So what i've done so far is using this unbrick guide http://www.android.gs/how-to-unbrick-the-lg-g6/
And i'm now loading H87010d_00_OPEN_EU_OP_0327.kdz through LGUP, and it appears to be working.
Hello XDA. I recently revived my G6 after it sat in my drawer for years and was delighted to see HavocOS on Oreo still running on it. I popped in my T-Mobile SIM and voila, service. My only issue was horrible data speeds. I tried every network settings and apn fix that is relevant to my device but I was still stuck with virtually no 4G data. So, my last resort was to flash back to stock. Now, I dont know if there is a specific method for this device as I forgot how complicated the root exploit was. But I went ahead and downloaded the latest stock .kdz (20g), LGUP and the drivers and proceeded as normal to flash the kdz over. I had SEVERAL issues getting my device model to be recognized and finally grabbed the right LGUP version that worked. I proceeded to flash the kdz when it gave me an error round 31%. I did much troubleshooting research and came up empty, finally decided to try flashing the stock version it was on (20a) to just restore it.
This worked. I thought I was saved until the phone froze on the T-Mobile logo while booting and didnt budge for an hour. Much more googling and I found a thread that looked promising and seemed to help. At first. It flashed the kdz, gave me the error, and when I tried to flash the dz, nothing. I retried LGUP with 20a stock, unknown model. I tried to go back through the whole rooting process again and stick it out with minimal service. The FWUL/lglaf portion of the guide is where I got stuck. My device would not be recognized in FWUL, I couldnt get wifi so plugged in my ethernet. And then I kept getting "USB configuration not set" and "input/output" errors, and I noticed that while booting FWUL, the step "Loading Kernel Modules" fails. So I assumed that FWUL was not loading any modules, including USB's (which explained the errors), so I booted up my own Manjaro install and cloned the same project there. Knowing all my modules work now, I still get the "Input/Output" error.
So now I'm led to believe this phone is hard-bricked. It registers as a port in Window's Device Manager, "LG AndroidUSB SerialNet" or something like that. I tried following the unknown model guide again to no avail. I'm at a loss. Whatever info is needed for debugging I'll provide. I'm dualbooting Win10 and Manjaro so any methods are viable.
Which specific stock KDZ(s) did you try to flash on your phone (full kdz name)? You need to seperate flashing and rooting as two separate tasks because from your post I can't tell if you are able to boot after flashing stock kdz or not. First, if your phone is not booting, you gotta recover from that and flash a stock kdz.
Also, try using the Dev patched LG UP from this post (thank the dev while you are there): https://forum.xda-developers.com/lg...ssflashing-t3780969/post76510671#post76510671
Try the 'Partition DL' option when you flash and select all partitions in the next window.
Once you are able to boot a stock rom, you can try using a VMWare such as virtual box, install/mount FWUL in a virtual environment and use that to root the phone. I think the process is somewhere here on the runningnak3d's guide or on another post, I will try find a link later.
I have an H872 on Havoc 4.4. I have upgraded to a Pixel and will be giving the H872 to my father-in-law. He will only be using it for phone calls - very unlikely he will text, and definitely won't use data. It will also be his first smart phone. Since the H872 is rooted, when it boots up it gives the warning display that the phone may be "Corrupted". I don't want to have to explain all that "root" stuff to him, etc... I want the phone as basic and simple as can be, hence , I want to reflash the stock firmware.
I am having troubles though. Booting the phone into download mode and starting LGUP fails to recognize the phone. I've tried with Uppercut as well and it says I'm missing a file in Apps/Roaming, etc...
Not sure the problem because I have reflashed stock many times with LGUP. Could it be that Havoc has changed the "identity" of the phone, or that it's on Android 11?
Any help to get this back to stock is much appreciated!
Got it figured out. Flashed back to an older TWRP (was on Orange Fox), flashed an old stock Oreo ROM, and then was able to flash kdz with LGUP.