yashsingh1/xdaforums huggingface dataset:
[G3 General] Ray1000:
I can't see anything on screen. :(

I tried LGUP now but it does not find the phone. It finds an "unknown" device and does not work. TOT flash would delete all my files?

You think an official repair center can recover my files? I don't really care much for the phone, the files are more important to me.
[G3 General] hyelton:
Repair center would replaced the motherboard which wouldn't save your files. Unless you had them stored on an SD card there's no way to obtain them.

If you cannot put the phone in download mode there's no tool that's going to work.
[G3 General] bender_007:
You can force the phone into 9008 mode, thats the last resort but depending on what you are flashing and based on your experience you might lose the data. Look for "boarddiag 2.99" and see links in my signature for more info.

Poslano sa mog SM-G930F koristeći Tapatalk
[G3 General] PhoneNoobs:
Boarddiag for sure if u want to make the phone usable again. Theres a tutorial somewhere here on xda with pictures
[G3 General] ThePurpleK:
Hold the volume up button while your phone is shut down. Plug a USB cable into your computer. Keep holding the volume button. Plug in the USB cable. See if anything comes up while you hold the volume button.
[G3 General] eranda84:
Deleted
[G3 General] Ttravelst:
I am trying to do the normal flash. I get to the actual upgrade to phone section of the mobile support tool and it says Connection to server failed. Try again in a moment. I hit OK. It says Upgrade stopped due to an error. This happens everytime. What can I do?
[G3 General] hyelton:
First of all it's supposed to say that and will always say that.. you ignore it by dragging it out of the way and if things are correct you'll see that it was actually flashing. Clicking on okay will cancel the flash.

Also you need to be doing a CSE flash not normal. CSE wipes and if you don't you might run into issues.
[G3 General] Ttravelst:
Oh I know it is suppose to say that AND continue to flash, but it never does continue. It always stops behind that box saying Upgrade stopped due to error, and says to take out battery restart etc... The only time it begins to actually flash/update is hitting okay on front box and hitting retry on back box. ALWAYS goes to 4% and then fails, and says once again Upgrade stopped due to error with how to take battery out and restart etc...
[G3 General] hyelton:
[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ &amp;amp; TOT Method With LGUP

Were you running MM? If so you must use LGUP.

But why not try CSE? Normal should never be used. Unless you were on MM flash tools won't work
[G3 General] Ttravelst:
I tried both D85130d_00_0404.kdz and D855110R_00.kdz. I used normal flash because I don't want to lose any data which is not backed up and can't be right now. Is there any way for me to do a normal flash?? I am trying to do that to get passed a com.android.phone has stopped and nfc service has stopped box that shows up everytime on reboot and I cannot get passed that screen at all.
[G3 General] ThePurpleK:
I kept getting Play Services has stopped. If you have adb access and Titanium Backup installed, you can use adb to start Titanium Backup and try do a full backup while trying to close the error messages as soon as they pop up. Alternatively, you can make a full Nandroid backup with data via TWRP and try restore the data partition later.
[G3 General] hyelton:
[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ &amp;amp; TOT Method With LGUP

You always need to do a CSE flash sadly. But wait..Why are you trying to flash two different model kdz?? That will brick your device the D855 and D851 are 2 different devices.

But like I asked were you running MM before?? If so you Must use LGUP as lg flash tool will NOT work.

Your also putting the phone in download mode and using USB 2.0 port correct?
[G3 General] Ttravelst:
Both of those kdz were listed for Tmobile D851, wasn't sure which one to go with. Both ended up the same, did nothing no bricking. Wasn't sure what was running before but I got the ..has stopped. error message after I did a system update. I assumed I then had the latest update. Yes, phone is in download mode and using USB. I will look up how to do LGUP if need be...but will that keep from erasing everything too?
[G3 General] hyelton:
In the T-Mobile folder there are all D851 files which are for the D851 if you have that model. In the file names you listed you tried a D855 kdz that could had caused loss of efs if any of that flash went through.

LGUP is in post 2 of my guide in this thread as its part of my guide.

But yes if you were running MM android 6.0 you cannot use flash tool. Sadly your most likely going to have to wipe. You can choose upgrade on LGUP but there's no guarantee your phone will boot correctly. Choosing referbish will wipe but won't cause issues.
[G3 General] Ttravelst:
How do I do upgrade instead of referbish?
[G3 General] hyelton:
Choose upgrade. But I've never done it as it causes problems so not sure if it wipes or not but its your ONLY way
[G3 General] Mike-12345:
i own a D855 ,rooted, with 6.0 kdz (http://xdaforums.com/lg-g3/development/stock-d855-30b-images-kdz-flashables-t3282012). Problem is i have to send my device to repair service from LG so i have to be unrooted. Is this method the right one to unroot?
[G3 General] hyelton:
The link you provided is for rooted. The guide here will put everything back to 100% stock. Just use the LGUP method b
[G3 General] atarutof:
problem with my lg g3 d850

I tried this method but the phone doesn't boot it stuck in lg logo
[G3 General] hyelton:
You'll need to explain more we can't help you without details. Model? Method? File? Used CSE flash if kdz method correct?
[G3 General] smilesintears77:
Hi. I'm running official mm on att d850, having terrible battery drain and slow charge. i like to go back to LP..is it possible??
[G3 General] patel_a@hotmail.com:
Model information check failed error

Hi,

I have D850 with Stock Marshmallow which keeps going to boot loop when unplugged from wall charger, after OTA upgrade. My phone is not rooted.

I followed the above procedure to downgrade Stock image however I'm getting "Model information check failed" error on the Flashtool. I'd selected "Upgrade DL" in action type.

Should I be using "Board DL" action type or is there anything else that I need to do to overcome this error?

I'm happy to root the phone and install TWRP & Cyanogen mod , if I have to. However, I can't find any posts to root D850 which is on Marshmallow.

Thanks for your help!
[G3 General] hyelton:
Did you try and Perform a factory reset first?? Also your using a USB 2.0 port correct? USB 3.0 won't work. And in download mode?

Also if you were on MM you'll need to use LGUP which is in post 2.

Please don't quote the entire Op though I see every post usually.
[G3 General] patel_a@hotmail.com:
Thanks for the prompt response, much appreciated!

I tried factory reset from the Stock recovery option i.e. Press Vol. down+Power button and then selecting factory reset/ delete all data option. However, the first time it reverted to stock Marshmallow ROM and same problem (boot loop without wall charger) continued. I tried the same process again but now it does not complete the delete process, half way through it brings up LG start-up screen and goes into boot loop. Hence, I was trying the Flashtool option using USB 2 port.

I did not try the LGUP option as the post mentioned it is for D855 and I have D850. Do you think it will work for D850 too?
[G3 General] hyelton:
I haven't updated the OP to state it works with the D850 yet. But yes it does it's the only way to downgrade from MM
[G3 General] danishm:
i need stock rom MM 6.0 for lg g3 d850
[G3 General] hyelton:
[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ &amp;amp; TOT Method With LGUP

As stated you have to flash kitkat and update via ota update with an AT&T sim. I posted that in your question thread already.
[G3 General] Madridii:
Hello all!

Did any one try to downgrade from MM (30b global) to LP (21a)?

If yes please tell me steps to do on windows 7 and do I need to enter download mode with lg up method?

Thank a lot
[G3 General] hyelton:
The steps are in the OP. There's no special way. You need to use LGUP
[G3 General] damjann4:
Does anyone know can i update d858hk 10f on kk in this way ? My region is uae
[G3 General] Scenat:
Can I unroot my D852 with TWRP 3.0 and custom MM6.0 using the KDZ method?

This warning made me confused "To Downgrade/upgrade to/from MM 6.0 You'll need to use LGUP in Post #3 Currently only for the D855".
[G3 General] hyelton:
Yes just follow the guide in the OP
[G3 General] hyelton:
If you were running official MM then yes. Not sure if custom or not. But just use LGUP anyway to avoid problems and use the kdz meant for your model
[G3 General] damjann4:
Can i flash KK with UAE region with MM HK region ? Is there a brick chance:(

Can i downgrade it if my battery goes crazy?
[G3 General] hyelton:
If uae region is the exact same model number.
[G3 General] damjann4:
I didnt understand what you wanted to say...you mean i can downgrade it with kk for 858hk or ? I dont care about region ... I asked about uae becouse its preinstaled on my phone(originaly stock sw)
[G3 General] hyelton:
Yes you can downgrade but you have to stick to what your model is is what I was saying.
[G3 General] damjann4:
You mean i cant downgrade my d858 with sw for 855 for example...tnx you so much ?
[G3 General] hyelton:
Exactly :) your welcome.
[G3 General] damjann4:
tnx once again ...but i have a problem :(

i backed up my data with lg stock sw,and he did it ''succesfully'' but...he created me lbf0 exstention and now mm cant see it ,when i try to rename it in windows and reduce that fu***in zero in extension mm see it but says fle is damaged ,,,any slution please help ?
[G3 General] hyelton:
Sorry no clue on lg backup. It might had been changed in MM.
[G3 General] airpull91:
hi guys..

i have some prob here..

i want to use the 1st method --> How to flash ROM KDZ Method

but i accidently have the the LGE Mobile USB serial port to COM41 as in method no2.

do i have to change it to the original COM4?
[G3 General] atarutof:
Hello i need a d850 v10f stock please
[G3 General] hyelton:
You'll have to flash 10d and ota update. As stated you cannot get any newer firmwares for the D850 other than ota update with an activate AT&T sim.
[G3 General] hyelton:
What problem are you having?? I'm confused. For the kdz method it doesn't matter what com port it's set at...
[G3 General] atarutof:
I flashed the 10d with tot method but the phone stuck in lg logo i did a factory reset but it still stuck in lg logo
[G3 General] Vester710:
Downgrade for T-Mobile model d851 from Marshmallow 6.0 to Lollipop 5.0.2?

Wow 385 pages, anyways I'm new here and was just wondering if there's a way to downgrade my lg g3 (d851) from Marshmallow 6.0 to Lollipop 5.0.2? My mobile carrier is through T-Mobile currently. I really confused and don't know the setup with LGUP or LG Flash Tool 2014 but only seen tutorials like such here that says it's only for models d855? Anyone know a fix?
[G3 General] hyelton:
You choose board_dl?
[G3 General] atarutof:
Yes and aloso upgrade_dl but nothing change the phone stuck

I found a kdz for d850PR i tried it the phone booted normaly but there is issues with wifi and many other things
[G3 General] hyelton:
That's because that's for the D850PR and not the AT&T version. Now that you've gotten it running. Now try the tot method and report back.
[G3 General] atarutof:
I dit it but the same problem it stuck in lg logo like before

What do you thing is the problem my phone was working with cloudyg3 1.2 and everything was working fine
[G3 General] hyelton:
Did you try using LGUP with the tot file?
[G3 General] atarutof:
Yes i did
[G3 General] hyelton:
And you chose refurbish and it flashed and completed? Strange.
[G3 General] atarutof:
Yes and i have the same issue it stuck in lg logo

Can you tell me how to install a zip file i want to try cloudyg3 1.2
[G3 General] Vester710:
Anyone here knows how to downgrade?
[G3 General] hyelton:
Everything is in the OP...
[G3 General] Vester710:
What does "OP" mean? And I'm trying to downgrade d851 from marshmallow back to lollipop. Seems hopeless as nobody's telling me how to do it. So far I've only seen tutorials from different models like d855 using LG Flash Tool.
[G3 General] hyelton:
OP is the first post the guide.. Downgrading is same as upgrading or flashing back to stock. All models are the same method. But I'm not exactly sure if you can downgrade the D851 due to risk of brick for that model. But if you'd still like to try you'd use LGUP which is in the 2nd post.
[G3 General] xantiux:
Does it work on the D852 (Canadian Telus/Rogers/Bell variant)?

I have the D852, stock, unrooted, marshmallow, and would really like to downgrade to lollipop in order to root my phone.

I'm tired from reading and google-ing for a solution, and right now it sounds like I'm stuck.

Does anybody know if there's a way to either root (and flash) the D852, or at least downgrade to lollipop (this should allow me to root it).
[G3 General] hyelton:
There's only 1 way of downgrading from MM and you just use LGUP.
[G3 General] xantiux:
Does it work for the D852 variant? The initial post states that it is only for the D855.
[G3 General] hyelton:
I just stated a few posts above yours why it says that :p I haven't had time to update it. It only says that as some models have to have a different dll. It works with all LG devices but you may run into it saying unknown model and in which you'll have to find a dll
[G3 General] xantiux:
I did see it, but I wanted to be double (or triple) check just to make sure I'm not going to brick my phone.

I greatly appreciate your help. It worked perfectly. Also, it is much easier and quicker than I expected.

Thank you very much! Enjoy your Memorial weekend!! :D
[G3 General] hyelton:
I understand, I do need to go in and update some things in the guide. Glad you got it!

You too!
[G3 General] yunus11:
Bricked.!! :(

I was on LP 5.0.1 flased with TOT mehod to 4.4.2 my LG G3 VS985 and now it is showing everything Unknown, no IMEI, no basband and ultmately no mobile signals :( anybody what to do??
[G3 General] PhoneNoobs:
I never had that happen so i can't help you directly but may i suggest that you give us more detail as far as what program did you use to flash it and what tot specifically.
[G3 General] yunus11:
Used ToT file, everything went well but at the end it showed a red screen on my phone and a WARNING MESSAGE "NO QEM = 0" and error message on FlashTool [Failed: Fboot000064] and when i removed the battery and turned on my mobile signals were gone and baseband was unknown and so was the IMEI.
[G3 General] hyelton:
And you flashed a VS985 exact tot file correct?
[G3 General] yunus11:
Yes.. Named : VS98510B_03

with DLL : LGVS985_20140620_LGFLASHv160
[G3 General] hyelton:
DLL won't affect anything.

And your model is for sure a VS985? Any reason you used the tot method instead of flashing a newer kdz?
[G3 General] yunus11:
Yeah it is.. I found tot first on this thread and used that method... I just want to get back to my LP or new MM or least to KK for good :(

i don't know how to upload screen shots here..
[G3 General] hyelton:
Follow the kdz method and flash a kdz. I think your issue is related to downgrading with that variant downgrading that low like the tot file is not recommended.
[G3 General] yunus11:
That is what i thought so couple of minuets ago i did it with KDZ method.. file name: VS98510B_01-4.2.2-Jellybean-MD5_D228BA692EF0C4704CBA0B00FAD8B8CE-(not_official,_won't_get_OTAs)

the process went upto 99% and after that nothing happend and my phone just restarted itself. and with same detail like no IMEI and unknown baseband.
[G3 General] hyelton:
You need to flash something a lot newer than 10b. Jelly bean. You shouldn't be flashing anything older than kitkat or lollipop.
[G3 General] yunus11:
That flash was of KK file.. i don't know why they named it Jelly bean.. after flashing it was on 4.4.2 KK
[G3 General] hyelton:
At least flash 24b. But downgrading might had caused you to loose your efs which if that wasn't backed up there's no way to fix it. Flash the latest available kdz
[G3 General] yunus11:
There is VS98547A_01_0314_ARB01.kdz available on Storagecow, do u suggest that i should try KDZ? or i should try the 24B file?
[G3 General] hyelton:
47a as its newer.
[G3 General] yunus11:
Ok i'll try it now and share
[G3 General] hyelton:
Be sure your choosing CSE not normal. If that doesn't bring it back you'll have to try and find another way and methods to bring it back but usually once it's gone it's gone forever.
[G3 General] yunus11:
Continuously getting Phone is disconnected from the computer, but is is connected.. tried so many times..

there is nothing written on the bottom when i switch it in Download mode, i mean it showed like Modified, Official or Unofficial status previously on the bottom but nothing now, :(
[G3 General] hyelton:
As long as the phone is IN download mode and your using a USB 2.0 port.
[G3 General] PhoneNoobs:
Try a different port a lot of ppl just switch to a different usb port to get it working. I recommend the official LG G3 usb cable also.
[G3 General] cannizarro:
Is there no kdz for d85521a??

my phones version is d85521a and i want to upgrade to 6.0. How can i do it??
[G3 General] hyelton:
[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ &amp;amp; TOT Method With LGUP

Follow the guide and use the kdz method.
[G3 General] yunus11:
My LG VS985 is live again with 6.0 latest KDZ rom. Everything is working fine now thankx to you but one thing is it is showing that my IMEI is Null like 00000000 even with *#06# it gives me "0" .... do i need to worry for that? any way that i can get my IMEI back?
[G3 General] Vester710:
I just want to say that I was also feeling the same way. Honestly I've never before used flash tools for lg phones nor would I know how these dll files work. I hear what you said about using LGUP or LG Flash, however I still am clueless and about given up.

But now marshmallow made my phone very sluggish, for example I had my phone max charged. I know the new Doze feature helps battery yet still am I faced with high battery drainage. Phone lasts as long as my Nintendo 3DS, why's that? It's a smartphone not a console. Doing anything on-screen time for 2 hours and it quickly dies off or drains from 100% all the way back down to 15%. I was playing a game on and had some apps in background then it would force restart.

Seems when I tried turning my phone on it also takes 30 seconds just for phone to turn screen onto my lock screen. The os is so bad, it often keeps stating "Android is starting" when I turn on my phone after a low battery drainage. Thus it then rearranged my app icons into a mess after "optimizing" it. They then messed with the knock pad requiring 6 codes instead of 5, this new Direct Share gets in the way when I want to share a image or post on Line messenger because contacts pinned are always in the way. Not to mention they also ruined the LG keyboard. Simply holding backspace could remove this entire reply in just 5 seconds.

---------- Post added at 04:06 PM ---------- Previous post was at 03:56 PM ----------

I'm just saying I don't want to cause my phone to brick or anything. I was first on Kitkat when I first got this phone it was best. Phone was new but often has issues such as overheating, sluggish performance, and battery drainage. Lollipop back then seemed like the worst. Until this marshmallow os came recently, it's still was an ok upgrade. Now I wish to go back. I see no huge improvements from this ota update just recently from T-Mobile over marshmallow except for Doze feature. Why is it so hard to find a tutorial with the right compatible file for my phone to be able to downgrade? It shouldn't be this complicated. As I was able to even root my Samsung GS3 phone years back while it was still on KitKat. I bet now with Marshmallow they've ruined that too. I've heard Lollipop was the last os to be able to even still root your phone.

---------- Post added at 04:15 PM ---------- Previous post was at 04:06 PM ----------

So since my lg g3 phone is now out of warranty, trying some risky tutorial that is unknown to actually become guaranteed to work is not what I'm hoping for here. If anyone has already at least tried or tested models other than the d855 listed, please tell me how or show a tutorial for other models such as d851 with pictures on how to do it and what tot, kdz, or dll file is needed and compatible. I'm confused on how all of this works.
[G3 General] hyelton:
I'm guessing you tried to downgrade? That seems to result in loss of efs. If that's gone and you never backed up its sadly gone forever.
[G3 General] hyelton:
I think your worrying a little to much... I can't state for the D851 on downgrade. But as I've stated a million times, the method is the exact same no matter the model. If you have a D855 or a D851 the downgrade, upgrade, or back to stock way is the exact same as one or another there's no difference. What is in the OP applies to every single LG device out there. This method is not Unknown. It's at least been used over a million times over the past few years if not more than that.

Also when you said it takes 30 seconds for the screen to shut off to lock screen? That's normal. That's the default setting you can change that under settings. And you also performed a factory reset after updating right? That will solve a bunch of problems.
[G3 General] burgess_boy:
I am going to try this method to return to stock, if I am currently on MM (Fulmics 5.2) do I use the instructions as posted in post 3# if I want to return to stock MM. It is not too clear as it just mentions upgrading to MM and downgrading from MM.

Also will I need to backup my efs for this process and can I downlaod my own kdz files from here?
[G3 General] getabu:
[MENTION=2607037]hyelton[/MENTION] Sorry for the question, im just a noob in LG phones (coming from Samsung devices)

and im a little confuse of how to update from LP to MM, if use the LG FLASH TOOL 2014 method or the LG UP....method i have an international D855 (i use the phone in VENEZUELA dont know if that matters)

what stock android do you recommend for me to install and what method?
[G3 General] hyelton:
You can use either or but just use LGUP and you'll be fine :). As long as your flashing the firmware meant for your model you'll be fine.
[G3 General] cannizarro:
yeah but in the link provided, there is no kdz available for d85521a. its only there for d85530b. Is it okay for me to use the 30b kdz for my 21a version?
[G3 General] Lanikor:
Your phone version is D855 (international) and 21a is Android Lolipop version.

1xx- Kit Kat

2xx - Lolipop

3xx - Marshmallow

so D85530b is Marshmallow stock ROM for D855
[G3 General] PhoneNoobs:
I was wondwring after reading some post on here if one loses their efs and doesnt have an imei number would that mean thier fone is useless? Like will they be able to make calls and still use it or does that go down the drain too?
[G3 General] hyelton:
If you loose your efs it turns into a wifi only device. But you'll only loose efs if you flash an wrong model firmware or downgrade a Verizon or sprint variant past a certain point.
[G3 General] yunus11:
That means this phone won't work now?

but it gets signal for a while and after that it just gives a status "Services Disabled" the sim card is not from Verizon.. There is guy who said that they can restore phone's IMEI with Octuplus box, can you explain?

one more thing i want to root this phone now, would Kings Root work?
[G3 General] hyelton:
Sim card is not from verizon message is normal if your not using a verizon sim on a Verizon phone. No clue the octuplus box is a hardware device. The person probably means repairing IMEI which is a completely different thing and is illegal.
[G3 General] yunus11:
allright, i get it. So, there is no way to get my phone back to normal now??
[G3 General] hyelton:
Not if your IMEI is all zeros. Theres several non easy methods to try, but none have never worked for me when trying to fix that issue.

You can try this when you get time to follow through it all - http://xdaforums.com/showthread.php?t=1942417