So I'm trying to port the ls990 CM rom to the us990. So far I've changed the BoardConfig as well as the kernel config to the specifics of my device.. Everything built and looked great, but after a flash it gets stuck on the LG boot screen.
I'm completely new to porting CM, so I'm not too sure where to look from here. I've read over the porting guide, but I have no clue where to look for indications as to why it won't even boot past the LG splash. Is there any diagnostics I can pull from the device after trying to boot?
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So recently I had CM13 installed on my G3 D852, but I wanted to try out the Marshmallow port of stock without actually removing CM13, so stupid me had flashed MultiROM and the included TWRP that supports it. Anyway, after flashing the port my phone had rebooted to just the LG logo with the "boot certification verify" error, then the black screen with the blue/red LED flashing. I had tried to go back to stock but it kept failing, and now for some reason my computer can't even see that it is plugged in.
Am I basically SOL? I can get into download mode just fine but that's it.
Okay it's being picked up by my PC now but I noticed something interesting, the model under LG's Mobile Support Tool reads the phone as the D855, when it's the D852. I've tried the KDZ and TOT method of trying to flash back to stock Lollipop for the D852 and neither work.
How screwed am I?
Update: After countless hours of searching, I finally found a method that worked. My G3 is now back up and running.
http://forum.xda-developers.com/lg-g3/help/solution-flashed-wrong-model-rom-to-d852-t2987242
I don't know where to start. So I changed the resolution of my LG G3 F400L to 1080p via terminal. then I reboot it. The LG boot logo appear, after waiting for a while the logo won't go anywhere. the boot sound can be heard also when I touch the screen I can hear unlocking sound and touch feedback which means my device is working properly JUST the LG bootlogo covers up everything just like a curtain.
Another thing is, I tried to boot it to recovery to restore my firmware but it just won't work. My device has TWRP flashed by AutoRec. I used every button combination and tried like 100 times each that I found here: http://forum.xda-developers.com/lg-g3/help/f400l-recovery-t2960352 but the device won't boot to recovery. It just boots normally and stuck on LG bootlogo as I mentioned above.
Running to a dead end. I put my device to download mode (which the only mode that I'm able to do) to flash my device back to stock ROM using LG Flash Tool. After a few processes it stucks at S\W Upgrade part saying "Upgrade stopped due to an error". Just so you know I have the latest driver installed.
The stress and frustration really makes me want to bump my head to death. Any help and solution IS GREATLY APPRECIATED!
Please Help me.
Hey guys.
Here's my situation:
My phone had some Xtreme rom which was essentially just a debloated stock 6.0 rom.
I was trying to install a very experimental multirom recovery but it essentially failed and was giving me errors whenever I wanted to flash something.
I used the phone like this for a few days because I didn't have time to fix it but eventually it got stuck in a bootloop and all I have access to now is download mode.
Now LGUP is not an option because the makers of Xtreme modified the build.prop and my g4 shows up as unrecognized and Flash Tool doesn't work because I'm on v20i.
I've searched through the forums but there doesn't seem to be any definitive solution to this situation. I would love any advice on the matter...my g4 has been in a coma for about
5 months now and I've been using my galaxy nexus.
Thanks guys.
I had similar situation before, and I managed to get my ass out using file manager from TWRP recovery.
Does your rec come with integrated file manager, or can you flash your rec in current rec?
If it's NO and NO, I guess you're now super hard bricked.
Maybe you can try putting your phone in 9008 and then unbrick it.
Hello everyone. I am new to Android ROM custom upgrades. Its been around three weeks since I've experimented with my LG G3 D85010F and I would highly appreciate it if I find a useful answer to my query. I wanted to upgrade to Marshmallow so I tried using a CM 13 custom ROM and TWRP. I however ended up hard-bricking my device so I used the BoardDiag tool and I was able to get it out of the hard-bricked situation and then I used the LGFlashTool to flash the TOT file (D85010D, because i could not find the D85010F file) but the phone gets stuck in a bootloop(No Mini OS and FBOOT check ends in failure). I tried flashing the LGD850PR kdz file and the same thing happened. So I reverted back to the D85010D and still the same bootloop. (In case this is relevant I had charged the battery to around 90% before doing the flashing). Now I'm out of ideas and I could not find any solution online. What could be the problem? Thanks in advance folks!!!
Good day, all
I need help to hopefully restore any working ROM to my LG G4.
Album of screenshots: https://imgur.com/a/3afkFbl
The short story is, I originally saw a slightly newer firmware on the LG site https://lg-firmwares.com/. But I may have installed the wrong one since I now cannot get 4G LTE and I now have a 'US Cellular' splash screen at bootup (as opposed to the original LG splash screen). So I got a new LG V20 and it is now having issues. So I decided to try to go back to the LG 4G IF I can get the right firmware on the phone.
I attempted to enable USB debugging, install the LG drivers, DLL and boot into download mode and use the LG UP software to install the firmware US99125a_00_0317.kdz (not SURE if this is the correct firmware or not but I’m frustrated and starting to not care). However, the LG UP software won't recognize my phone (please see screenshots at link below). I also tried the LG Flash Tool and Uppercut (with the request LG UP version) and neither worked (also see screenshots). The phone looks to be kind of messed up when looking at the status section of ‘settings’ and the fact that it won’t connect to 4G LTE and has the ‘us celluar’ splash screen.
Can anyone guide me on how to fix this (hopefully)?