Downgrade problem - G4 Q&A, Help & Troubleshooting

Hello!
I am running 20A (Poland Beta) because I am not able to downgrade to Lollipop. I don't know what happend but if I try to downgrade using LGUP (the same way as 2 months ago) it stucks at 13% and error 0X2000.
Can anybody help me ? I only want my specific system ACZELD.
I tried:
Phone in Android, LGUP refubrish/upgrade
Phone in Download Mode, LGUP refubrish/upgrade

what KDZ are you using?

I already downgraded my system. I downloaded the SAME kdz 3 times. For the last time, downgrade was successfull, but I don't know why, because on my friend's G4 also first two downloaded KDZs was OK

Related

D852g Cant revert to stock

Good morning
Im using a Canadian version of the LG G3 D852g on Videotron network.
I have been able to root and twrp the phone no problem. I have tried most of the roms available (candy cm 12 etc)
I installed cloudy 2.5 for my model of phone and since then i have been unable to revert to the stock OS via the KDZ method or TOT.
What is odd is that the KDZ worked no problem until after i installed cloudy 2.5
The KDZ method would now stall at 2% and indicate that it can not find my device. (yes i know drivers com port 41 etc etc etc)
I downloaded tot file and dll required for my device and when i run the LG flash tool.
SO then i tried the TOT method to revert to kit kat. and this is where i got a weird error message
imgur.com/a/aExF3
Any help would be greatly appreciated

Root and KDZ help.

I got my lg g4 yesterday and tried to root it using the little effort root and it didn't work. When it rebooted I the screen that says booting failed etc etc with the LG logo on it and it cut off. So I tried to kdz it back and I guess I chose the wrong KDZ and it just completely blacked out. Luckily they gave me another 1 (told them it wouldn't cut on after going dead) so I want to try rooting it again but I want to know which software version am I? In my settings it says vs98611A but under my battery it says vs986B. Which 1 is my kdz? And is there any other way to root this phone?
http://forum.xda-developers.com/g4/general/lg-g4-100-root-success-directives-root-t3180586
Worked for me on 13B.
Suggest you update to 13B using LGUP PC tool and 13B KDZ, then try rooting again with link posted.
How do I know that I'm not already on 13 b? This is all new to me
Settings - About phone - Software info - Software version.
Ok I see. I think what happened last time was I was on 13b and flashed a 11a kdz and that bricked my phone

T-Mobile LG G3- LG Flash Tool 2014 issues in downgrading the Android ver

Hello,
My T-Mobile LG G3 was upgraded to D85130E by carrier about 3-weeks ago. and i am facing screen freeze and blackout issue for ever 2 mins & battery life is reduced to only 3 hours. I am not support from T-Mobile, since i am outside of warranty period. I did the factory reset and still the issues are same.
Anybody suggest quick fix for this problem?
Tried to downgrade to D85120E (Lollipop) thru KDZ file:
Here i downloaded the LG flash Tool 2014 and all related drivers and the flash tool stops at 4% while flash KDZ firmware. It happens for multiple attempts when i tried with Win10 and 7 laptops.
Any other flash tools to overcome this issue?
Advance Thanks
Any root option available under d85130e update patch?
Couple days ago my d851 got the update pushed by T Mobile so enthusiastically.... and many good things with d851 turned on into something not very pleased!! Root and TWRP I had before with d85130d are now history and seem to me that there is no possibility to root under this new update, nor even to downgrade. I am curious if anybody rooted succesfully under d85130e and what method they used? Or, if is a way to downgrade to LP ( LGUP and LG Flash doesn't recognize model of d851TN)? Thank you!
Hello,
Any help to resolve LG G3 MM(D85130e) issues? I removed the SD card and did the factory reset, but the issues are still same.
Thx
Use the lgup tool too flash the firmware you want. I tried lg flash tool and had nothing but trouble. First attempt with lgup and i went from mm back to stock kk.. Very easy
wanna root g3 d851-30e. can anybody help?
---------- Post added at 11:00 AM ---------- Previous post was at 10:57 AM ----------
slate174 said:
Any root option available under d85130e update patch?
Couple days ago my d851 got the update pushed by T Mobile so enthusiastically.... and many good things with d851 turned on into something not very pleased!! Root and TWRP I had before with d85130d are now history and seem to me that there is no possibility to root under this new update, nor even to downgrade. I am curious if anybody rooted succesfully under d85130e and what method they used? Or, if is a way to downgrade to LP ( LGUP and LG Flash doesn't recognize model of d851TN)? Thank you!
Click to expand...
Click to collapse
hye bro. i also hv to root this mobile d852-30e if you found the patches please share over here or send me on whatsapp +9233480070407

Help save a bricked lg g3

:crying:
My issues is quite complicated. Please be patient and read on.
Less than a week ago, I bought an LG G3 D855. It wasn't brand new and definitely out of warranty.
It was on the 4.4.2 Os version but I couldn't update it because I couldn't locate the UPDATE CENTER and after some research online, I found out it was because it was rooted. I couldn't find a Supersu application anywhere on the phone anyways but Root checker confirmed that it was rooted.
I downloaded the stock kitkat firmware in a .tot format and I tried flashing using LG Flash Tool for TOT but it failed because "Device version is different"
I checked the Imei online and it stated that the device is a Sprint LS990 but the details embedded in the phone all say it is D855
I checked online and found a couple of posts about this error and one user said he was able to fix it by flashing the actual Sprint .tot with the lg flash tool. I tried that but it didn't work. It still said "Device version is different. Check BIN or dll"
I checked online and found results pointing to a generic .dll file for G3s and I downloaded it but when I used it on the Flash tool, it resulted to an error "CrossDL blah blah"
So I found a Marshmallow kdz file. LGUP won't see my device model so I was able to flash it after editting the software in my build.prop to D85510n.
***I have always changed the port to COM41 in all the steps I used
The LG UP detected my model and it flashed to 100% but got stuck on a bootloop by loading the lg screen, freezing and restarting by it self. It never gets to the homescreen.
I downloaded lollipop kdz reflashed using LGUP in a form of downgrade and it got to 100% and got stuck at the lg screen while trying to reboot.
I redownloaded the stock kitkat rom and used the Lg flash tool but it failed. It said 'PID null IMEI Null"
I used LGUP to reflashed. It came to my understanding that the LGUP can flash both kdz and tot. So it flashed to 100% but got stuck at the lg screen and I have tried all I can but it is stuck. It can go into download tho. I don't know what to do about the IMEI. I don't know if the last flash retrieved it. I don't kniw what to do.
It no longer shows as LGE AndroidNet USB Serial
Please can anyone help me?
I just need my phone to work again. I was stubborn and now I regret it. I should have just stuck to kitkat. I'm so desperate to get my phone working that I wouldn't mind Android Froyo Os if it was ever possible.
PLEASE HELP!!!
I think you have to repair the IMEI...
maybe this can help
https://youtu.be/nwzgs1Cmr9k
Sent from my LG-D855 using XDA Free mobile app
I think that he forgot to hard reset after flashing the kdz.
i completly know what you should do:
1: force your phone into qualcomm 9008 mod.
2: use board diag unbrick instruction and it will boot on download mod. for unbrick you will need best kitkat tot for your G3 model.
3: flash best lollipop or kitkat tot to make your phone alive
and then flash it with any kdz you want(it should be for your G3 model)
my telegram ID : @Erfan_rv
pls help me
Apparently, it seems my bricked phone keeps disconnecting during flashing process. I dont think it the fault of the cable because I have used different ones and they all seem to work fine with other phones. I have tried a different computer and still the same results. it connects as qualcom 9008 but once I try to start flashing, it disconnects and interrupts the flashing process. my phone just shows a grey screen now when I power it up with the battery in. also, I was trying to upgrade from linear os to the latest linear os. I cant fine the tot out there so im using zv6 currently. could this also be the problem? thanks in advance

Need some help flashing 6.0 ffirmware to my h522f/h525n

Good day guys,
So after my phone went dead from a phone carrier update went bad i set up to find a way to fix it, and i did manage to Unbrick it back to android 5.
That was fine and all but on the process of fixing it i found out that the android 6 update is still not available at my country (living in 3ยบ world suck) so after some research i found that my phone (h522f) is the same as h525n and since them i ve been trying to find a way to flash a v20a image with android 6 from the h525 whit no luck.
Tried LGUP, it shows "unknown"
Tried a lot of different version of LG Flash tool (the 2014 version was the one capable of fixing my phone but it does not flash the h525 kdz and the other versions give me a failed previous load error)
Tried KDZ_FW_UPD (does not open)
Tried changing the build.prop
So what i want to ask is if there is any way to flash a firmware from the h525 to my phone or if i have to w8 for lg to release an official update?

Categories

Resources