Downgrade LG G600L Korea. - LG G6 Questions and Answers

Can anyone tell me how to downgrade LG G6 G600l Korea from android Pie back to android Nougat?
I had tried LG Flash Tool and LGUP with nougat kdz file from lg-firmwares.com but nothing work.
in LG flash tool it alway told me to contact the system adminstrator.
in LGUP it said the LAF protocol version is not match.
What should I do now?

Did you check ARB by going into hidden menu *#546368#*600# (Ver. Info..)
I have G600 too and i have changed between S/L as well as downgrade from Pie to Nougat..
Edit: First check ARB, if its all 0 then there is a way with patched LGUP1.15 to even cross flash..LGUP1.14 always gives errors, never 100% results in first try..

shahper1 said:
Did you check ARB by going into hidden menu *#546368#*600# (Ver. Info..)
I have G600 too and i have changed between S/L as well as downgrade from Pie to Nougat..
Edit: First check ARB, if its all 0 then there is a way with patched LGUP1.15 to even cross flash..LGUP1.14 always gives errors, never 100% results in first try..
Click to expand...
Click to collapse
Can you teach us how? I also have ARB on 0

shahper1 said:
P1.15 to
Click to expand...
Click to collapse
shahper1 said:
Did you check ARB by going into hidden menu *#546368#*600# (Ver. Info..)
I have G600 too and i have changed between S/L as well as downgrade from Pie to Nougat..
Edit: First check ARB, if its all 0 then there is a way with patched LGUP1.15 to even cross flash..LGUP1.14 always gives errors, never 100% results in first try..
Click to expand...
Click to collapse
And also the link for the patch sir..... Thanks

Related

New update on h815 Vodafone

@AION ?
What update is that supposed to be?
tashum said:
What update is that supposed to be?
Click to expand...
Click to collapse
We'll see after Al0N give us a link and some info about those updates.
Edit: another firmwares were added on devtester.ro.
https://www.mylgphones.com/vodafone-lg-g4-h815-software-update-h81520l.html
http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW144W5A7284AC7B8A11IEC/H81520l_00_0124.kdz
Above link is not working to me but if you install a download manager it should work
https://www.mylgphones.com/how-to-solve-the-blank-page-issue-when-trying-to-download-lg-firmware
I haven't tried it yet but looks like branded and jan patch.
So it is not Nougat update and then we don't care anymore about this firmware?
kouzelnik3 said:
So it is not Nougat update and then we don't care anymore about this firmware?
Click to expand...
Click to collapse
I'm afraid it is MM. v20 firmware. At least jan sec patch. Hopefully it will come to unbranded roms too.
I can't believe how bad is LG aftersales. If I knew that before I would have bought a different brand.
If it is v20, it is MM.. Unfortunately. And now we have February, almost March so it will be nice if LG releases february update... I think it will be success if LG give us Nougat update at all...
kouzelnik3 said:
If it is v20, it is MM.. Unfortunately. And now we have February, almost March so it will be nice if LG releases february update... I think it will be success if LG give us Nougat update at all...
Click to expand...
Click to collapse
Yeah, terrible LG support. Samsung officialy said that S6 And S Edge will get Android N in a few days/weeks.
I would recommend everyone to generate their unique unlock.bin file on LG G4 unlock website in case of that LG shutdown LG G4 software support completly or Its unlocking page. All of you can easily unlock bootloader and flash custom ROM then (Lineage 14.1 for example).
I have already done that unlocking procedure and I've installed root and twrp. So if LG closes the support, I'll be able to change ROM if necessary.
kouzelnik3 said:
I have already done that unlocking procedure and I've installed root and twrp. So if LG closes the support, I'll be able to change ROM if necessary.
Click to expand...
Click to collapse
I haven't done it yet, but I think this will be myh duty for next weekend.
Can someone try to post latest LG G4 KDZ with January 2017 security patch here? That kdz file from this page is offline for me. Thanks.
https://lg-firmwares.com/lg-h815-firmwares/
use xdm download manager
heroutm said:
Can someone try to post latest LG G4 KDZ with January 2017 security patch here? That kdz file from this page is offline for me. Thanks.
Click to expand...
Click to collapse
http://csmgdl.lgmobile.com/dn/downloader.dev?fileKey=FW144W5A7284AC7B8A11IEC/H81520l_00_0124.kdz
Using XDM download manager to download kdz firmware from LG server is faster. and You can make sure it is original from LG.
www.mylgphones.com/how-to-solve-the-blank-page-issue-when-trying-to-download-lg-firmware
---------- Post added at 01:10 PM ---------- Previous post was at 01:09 PM ----------
heroutm said:
Can someone try to post latest LG G4 KDZ with January 2017 security patch here? That kdz file from this page is offline for me. Thanks.
Click to expand...
Click to collapse
You need to set “LGE-ActiveDP/0.9” as your browser’s user Agent., if you want to use browser to download firmwares from LG server.
To change the User agent settings in Chrome browser, Please User-Agent Switcher plguin.
Error while flashing with LG UP.
CEFS::Initialize() lg up error code 0x2000
I'm unable to flash this KDZ.
Is some unbrand firmware with january security patch, I suppose that vodafone firmware is branded thats right?
jurastefo said:
Is some unbrand firmware with january security patch, I suppose that vodafone firmware is branded thats right?
Click to expand...
Click to collapse
I'd like to try that, but error while flashing at 9%. I had to remove battery and turn on my phone again. I tried that four times with different USB ports with no luck.
---------- Post added at 03:12 PM ---------- Previous post was at 02:48 PM ----------
heroutm said:
I'd like to try that, but error while flashing at 9%. I had to remove battery and turn on my phone again. I tried that four times with different USB ports with no luck.
Click to expand...
Click to collapse
https://yadi.sk/d/KIG5F82jmXcUR/LGUP_0x2000_Error_Fix
This might fix that error, but I haven't tried it yet.
There must be a reason why this KDZ cannot be installed normally.
After using 0x2000 fix KDZ flashed sucessfully. ROM has Android 6.0 with security patch from January 2017. It just has custom Vodafone boot animation, anything else stock, no bloat.

I need rom to moto g4 plus xt 1642 dual sim 16gb in european version someone give lin

hi after uploading a new uptade mk 7.1 almost reach and it does not show me the card idea i have moto g4 plus xt 1642 dual sim help?
The phone shows that I have g4 plus and when connected to the computer that g4
Has anyone got any idea how to fix this?
szymon1515 said:
hi after uploading a new uptade mk 7.1 almost reach and it does not show me the card
Click to expand...
Click to collapse
English is not you main language, but I think that nobody here understand what your question/problem exactly is.
Gero71 said:
English is not you main language, but I think that nobody here understand what your question/problem exactly is.
Click to expand...
Click to collapse
My language is Polish
I need rom to moto g4 plus xt 1642 dual sim 16gb in european version someone give link?
If you're looking for a stock ROM, here's the Nougat (v7.0, Dec 2016 security update) stock ROM: https://forum.xda-developers.com/moto-g4-plus/how-to/moto-g4-plus-xt1640-43-athene-npj25-93-t3549369 I've successfully flashed it several times on my XT 1642 and appears to be the same build as that which came out on the official OTA update.
If you need Marshmallow ROMs, try https://forum.xda-developers.com/moto-g4-plus/how-to/moto-g4-plus-xt1643-updated-signed-t3460695 , which is MM 6.0.1, July 2016 security patch. Again, I've been able to flash this on my XT 1642 and received the Nougat OTA update, your experience may vary.
As always, with both ROMs, please carefully read the instructions and be aware you may lose your data, back up accordingly.
EDIT - just for info, I've got a XT 1642, retgb (UK) software update channel with an EMEA baseband. With both ROMs, those details were preserved.
echo92 said:
If you're looking for a stock ROM, here's the Nougat (v7.0, Dec 2016 security update) stock ROM: https://forum.xda-developers.com/moto-g4-plus/how-to/moto-g4-plus-xt1640-43-athene-npj25-93-t3549369 I've successfully flashed it several times on my XT 1642 and appears to be the same build as that which came out on the official OTA update.
If you need Marshmallow ROMs, try https://forum.xda-developers.com/moto-g4-plus/how-to/moto-g4-plus-xt1643-updated-signed-t3460695 , which is MM 6.0.1, July 2016 security patch. Again, I've been able to flash this on my XT 1642 and received the Nougat OTA update, your experience may vary.
As always, with both ROMs, please carefully read the instructions and be aware you may lose your data, back up accordingly.
EDIT - just for info, I've got a XT 1642, retgb (UK) software update channel with an EMEA baseband. With both ROMs, those details were preserved.
Click to expand...
Click to collapse
Will it work on xt 1642 dual sim 16gb reteu?
szymon1515 said:
Will it work on xt 1642 dual sim 16gb reteu?
Click to expand...
Click to collapse
They should work, as mentioned I have a xt 1642, same as you, dual SIM, (32 GB model) just on the UK software channel as opposed to the EU channel. Other members appear to have successfully flashed these ROMs on their EU devices, the only way to be certain is to try on your device.
echo92 said:
They should work, as mentioned I have a xt 1642, same as you, dual SIM, (32 GB model) just on the UK software channel as opposed to the EU channel. Other members appear to have successfully flashed these ROMs on their EU devices, the only way to be certain is to try on your device.
Click to expand...
Click to collapse
Will I detect the sim card because now I have so ...IMEI 1 0
IMEI 2 0
szymon1515 said:
Will I detect the sim card because now I have so ...IMEI 1 0
IMEI 2 0
Click to expand...
Click to collapse
Uh oh, that's not good, which firmware did you flash? That could be a result of the wrong firmware being flashed onto your device (especially as we don't have an official 7.1 firmware yet). You can try flashing the above firmware to try, there's a couple of other topics on this missing imei, the only other resolution I've seen so far is to service or replace your device.
echo92 said:
uh oh, that's not good, which firmware did you flash? That could be a result of the wrong firmware being flashed onto your device (especially as we don't have an official 7.1 firmware yet). You can try flashing the above firmware to try, there's a couple of other topics on this missing imei, the only other resolution i've seen so far is to service or replace your device.
Click to expand...
Click to collapse
jx's cream pie for nougat 25 93.11
szymon1515 said:
jx's cream pie for nougat 25 93.11
Click to expand...
Click to collapse
The phone shows that I have a g4 plus and a g4 computer
Which software should you try 6.0 or 7?
Can I get my imei number? How does that come from?
The IEMI "disappears" when is a mismatch of the radio (modem) files and the system, like if you try to flash a custom 7.1 ROM over stock 6.0 (MM). Sometimes is hard to recover from that.
First, in TWRP, wipe Data. Then, flash in fastboot the official 7.0:
https://forum.xda-developers.com/moto-g4-plus/how-to/moto-g4-plus-xt1640-43-athene-npj25-93-t3549369
Follow exactly the procedure, run the "OEM Flash.bat" script. Since you don't seem to be very skilled, stop using un-tested ROM's or you will loose your phone. You can add the ElementalX kernel if you need root on the stock 7.0.
https://forum.xda-developers.com/moto-g4-plus/development/kernel-elementalx-g4-0-01-t3424836
SoNic67 said:
The IEMI "disappears" when is a mismatch of the radio (modem) files and the system, like if you try to flash a custom 7.1 ROM over stock 6.0 (MM). Sometimes is hard to recover from that.
First, in TWRP, wipe Data. Then, flash in fastboot the official 7.0:
https://forum.xda-developers.com/moto-g4-plus/how-to/moto-g4-plus-xt1640-43-athene-npj25-93-t3549369
Follow exactly the procedure, run the "OEM Flash.bat" script. Since you don't seem to be very skilled, stop using un-tested ROM's or you will loose your phone. You can add the ElementalX kernel if you need root on the stock 7.0.
https://forum.xda-developers.com/moto-g4-plus/development/kernel-elementalx-g4-0-01-t3424836
Click to expand...
Click to collapse
Still does not show imei and when connected to computer shows i have g4 and should show g4 plus
What outputs "fastboot getvar imei"? Do you see the two IEMI there? Don't post them here, just look!
1. If the IEMI are missing, and you still have the original phone box (with printed IEMI numbers), you can try to set new IMEI:
"fastboot oem writeimei 123456789012347" This is a example write your own imei there.
2. If you see the IEMI listed by getvar... don't know anything besides what I have already typed in the first post.
SoNic67 said:
What outputs "fastboot getvar imei"? Do you see the two IEMI there? Don't post them here, just look!
1. If the IEMI are missing, and you still have the original phone box (with printed IEMI numbers), you can try to set new IMEI:
"fastboot oem writeimei 123456789012347" This is a example write your own imei there.
2. If you see the IEMI listed by getvar... don't know anything besides what I have already typed in the first post.
Click to expand...
Click to collapse
Im showing imei 1 .... 0
******************** Imei 2 .... 0
Then you can use the #1 from above. Copy the IEMI from the battery label first.
"fastboot oem writeimei 1 123456789012347" and "fastboot oem writeimei 2 123456789012347"
Or... try this.
http://www.hugestreet.info/2015/08/Free-Android-Device-ID-and-IMEI-number-changer.html
http://www.shelaf.com/2014/06/universal-method-for-changing-any.html
SoNic67 said:
Then you can use the #1 from above. Copy the IEMI from the battery label first.
"fastboot oem writeimei 1 123456789012347" and "fastboot oem writeimei 2 123456789012347"
Or... try this.
http://www.hugestreet.info/2015/08/Free-Android-Device-ID-and-IMEI-number-changer.html
http://www.shelaf.com/2014/06/universal-method-for-changing-any.html
Click to expand...
Click to collapse
Unfortunately nothing works still does not show imei
With the stock firmware that I have linked above?
I always make a backup - at least with TWRP and also with this
https://play.google.com/store/apps/details?id=ma.wanam.partitions&hl=en
SoNic67 said:
With the stock firmware that I have linked above?
I always make a backup - at least with TWRP and also with this
https://play.google.com/store/apps/details?id=ma.wanam.partitions&hl=en
Click to expand...
Click to collapse
So still not reachable and does not show imei
szymon1515 said:
So still not reachable and does not show imei
Click to expand...
Click to collapse
Hmm, that's not good, before flashing J-X's Creampie for Nougat, did you flash any other ROMs?
You may wish to have a look through this thread https://forum.xda-developers.com/moto-g4-plus/help/moto-g4-pluss-model-changed-to-g4-lost-t3496912 or this thread https://forum.xda-developers.com/moto-g4-plus/help/imei-0-t3476876/ for example, see if any of the tips within help.
Else, as I previously mentioned, looks like it might be either sending your device to service or for a replacement.
echo92 said:
Hmm, that's not good, before flashing J-X's Creampie for Nougat, did you flash any other ROMs?
You may wish to have a look through this thread https://forum.xda-developers.com/moto-g4-plus/help/moto-g4-pluss-model-changed-to-g4-lost-t3496912 or this thread https://forum.xda-developers.com/moto-g4-plus/help/imei-0-t3476876/ for example, see if any of the tips within help.
Else, as I previously mentioned, looks like it might be either sending your device to service or for a replacement.
Click to expand...
Click to collapse
Such as lineage and RR

LG G6 getting Pie update (Android 9)

I got update last night on my lg g6 Korean version..
Unfortunately i can't post screenshot of update log bcz of Korean language
zaid1 said:
I got update last night on my lg g6 Korean version..
Unfortunately i can't post screenshot of update log bcz of Korean language
Click to expand...
Click to collapse
Updating or LGBridge or LGup
Enviado desde mi LG-H870DS mediante Tapatalk
H870DS update to V30a is available via LG Bridge
Psycoholic said:
H870DS update to V30a is available via LG Bridge
Click to expand...
Click to collapse
Not working Lg bridge shows 2 updates pie update ... and if i pres update is downgrading to 10m why???
neobdium said:
Not working Lg bridge shows 2 updates pie update ... and if i pres update is downgrading to 10m why???
Click to expand...
Click to collapse
Same, tried twice...the second time he went into an endless reboot on the logo, on the firmware of 2017( 10m SIA ). Do not download it!!!
I was very upset when the first time he deleted all my data, damn lg
Nougat back to Oreo
BREALLU said:
Same, tried twice...the second time he went into an endless reboot on the logo, on the firmware of 2017( 10m SIA ). Do not download it!!!
I was very upset when the first time he deleted all my data, damn lg
Click to expand...
Click to collapse
Affirmative of the above that the LG Bridge software update "downgrades" the software version from Oreo to Nougat and brings back security patch for October 1st 2017...
It indicates that there are 2 available when you check but upon the completion of the first update, it wipes your phone clean.
Thank god, my G6 is a backup phone... version H870DS users take note. Don't use the LG Bridge to upgrade if your G6 is your primary device!
H870DS TWN Pie
My H870DS TWN updated to Android 9 (V30a) using the LG Bridge and even though it took quite a long time in the LG logo in order to start, it started and is working well.
ppp10 said:
My H870DS TWN updated to Android 9 (V30a) using the LG Bridge and even though it took quite a long time in the LG logo in order to start, it started and is working well.
Click to expand...
Click to collapse
u didn`t copy the kdz?
neobdium said:
u didn`t copy the kdz?
Click to expand...
Click to collapse
Sorry, but I did not copy the installation file.
ppp10 said:
Sorry, but I did not copy the installation file.
Click to expand...
Click to collapse
ok bro np. my lg g6 is HKG and is downgrading to nougat via LG Bridge
neobdium said:
ok bro np. my lg g6 is HKG and is downgrading to nougat via LG Bridge
Click to expand...
Click to collapse
If you can connect it to LG Bridge, isn't there a link in the right bottom of the "Software Update" menu to "Recover from update error" (not that all names where translated from the Portuguese language of my LG Bridge).
ppp10 said:
If you can connect it to LG Bridge, isn't there a link in the right bottom of the "Software Update" menu to "Recover from update error" (not that all names where translated from the Portuguese language of my LG Bridge).
Click to expand...
Click to collapse
i just find the HKG kdz of pie!! and i fla**** whit uppercut and i have android PIE
H870DS30a_00_OPEN_HK_DS_OP_0920.kdz FOR LG 870DS HKG
https://mega.nz/#!oUBXCIAL!8EdrQE-E5NIhN4593YrqgCDA_pyPi9vA4v-bfGkh0_E
https://www.mylgphones.com/lg-g6-an...-9-pie-in-hong-kong-taiwan-and-singapore.html
But, very slow download
EDIT: For SEA users i upload directely to mega.
H870DS30a_00_OPEN_SG_DS_OP_0920 .kdz
https://mega.nz/#!QxwTCQJI!J6BMZ84Twu6R2AaR9qaXGr4qb6h2fi8RzzbMde9cBJk
neobdium said:
i just find the HKG kdz of pie!! and i fla**** whit uppercut and i have android PIE
Click to expand...
Click to collapse
Hello, if I have ARE region of my LG G6+ (H870DSU), can I flash another region, for example HKG? Thank you.
J.
Jarko01 said:
Hello, if I have ARE region of my LG G6+ (H870DSU), can I flash another region, for example HKG? Thank you.
J.
Click to expand...
Click to collapse
Hmm dont`t know bro be carful not to brick the phone
whait for your region the update is not such a big deal
have a nice day!
Hi. Anyone able to put the PIE Camera apk on here for the LG G6. I updated it foolishly from the apkmirror site hoping to get the G7 camera and the Standard/Wide angles are reversed and not working properly. I should be able to install over this one like I did with the newer LG Camera Apk.
neobdium said:
Hmm dont`t know bro be carful not to brick the phone
whait for your region the update is not such a big deal
have a nice day!
Click to expand...
Click to collapse
So now I can confirm that changing a region is also an option
Two days ago I have successfully flashed (using LGUP+UPPERCUT -> UPGRADE option) other region (HKG) on my LG G6+ (H870DSU).
The firmware was H870DSU30a_00_OPEN_HK_DS_OP_0920.kdz and all works right after the flash, but for better performance I did also hard reset.
J.
Jarko01 said:
So now I can confirm that changing a region is also an option
Two days ago I have successfully flashed (using LGUP+UPPERCUT -> UPGRADE option) other region (HKG) on my LG G6+ (H870DSU).
The firmware was H870DSU30a_00_OPEN_HK_DS_OP_0920.kdz and all works right after the flash, but for better performance I did also hard reset.
J.
Click to expand...
Click to collapse
Nice but not allways is going to work i flashed some time ago android 7 indian version on my hkg and was not working
just to share, a week ago got update on my G6 870 in Bulgaria on A1 (ex mtel) operator.
so I was really pleased with the stability of the phone, got it with Android 6.x, than different stable upgrades, now with 9 is a bit slow. Did wait for a week, and today did master reset to be sure it is not bulk giving the issue, it is not. It is the release. First time disappointed by LG, but still a supporter
good luck

How to roll back from Pie beta to Oreo? H870S

Can anyone tell me how to roll back from Pie beta to Oreo. Is there a proven and safe method? Thanks
Nope
No there is no way to downgrade, if you try to flash it, it will brick you device
TipzTeam said:
No there is no way to downgrade, if you try to flash it, it will brick you device
Click to expand...
Click to collapse
Yes! You are right sir.
Just to confirm
This method is working
https://forum.xda-developers.com/showpost.php?p=80464669&postcount=46
Just use H870S .kdz file instead of H873.
P.S. please backup your data because after downgrade hard reset must be performed because of bootlop.
Yes
Windforce0511 said:
Just to confirm
This method is working
https://forum.xda-developers.com/showpost.php?p=80464669&postcount=46
Just use H870S .kdz file instead of H873.
Click to expand...
Click to collapse
Yes I know. You can not downgrade without losing data.
Wait warning. Remember to see if the kdz file have the same arb as your device firmware rn
A slightly different question about the H870S. I have one purchased in Australia from a big retailer in 2018. I have been checking for the pie upgrade but nothing has come through yet. When I looked up the details for the phone via the IMEI, I got the following:
Model: LGABCD
Region: ABC
Which seems kinda strange because there is no region ABC. The last update I received was sometime last year which was OTA and it says 1 May 2019, kernel version 3.18.71 build number OPR1.170623.032 Software Version V20o-AME-XX.
I was thinking I could use LGUP to upgrade to pie but I don't know which version of software to load. The OTA is saying there is nothing new available and LG Bridge is also saying there is nothing new available.
Ideas?
Windforce0511 said:
Just to confirm
This method is working
https://forum.xda-developers.com/showpost.php?p=80464669&postcount=46
Just use H870S .kdz file instead of H873.
P.S. please backup your data because after downgrade hard reset must be performed because of bootlop.
Click to expand...
Click to collapse
reporting. mine is kt korea telekom model G600K. successfully downgrade pie to oreo. downgrade because overheat and battery drain issue on pie.
the steps in the link work. but in LGUP, need to select 'refurbish' option instead of 'upgrade'.
of course, using the corresponding kdz file available at https://lg-firmwares.com/
Update 2: now back to nougat from oreo

Downgrade from pie to nougat (f800k)?

Hi
I am on pie and want to downgrade to Nougat because of horrible battery life. Does anyone know if it is possible easily via LG UP & Uppercut and giving it the .kdz file or do I need to have the dev version of LG UP?
I am asking this because I read somewhere that pie will upgrade the policies and downgrading from pie won't be easy/possible. It would brick the phone. I know to downgrade from oreo is easy but does anyone have an idea of downgrading from pie?
There are some links which i am placing down here in case of reference.
[Downgrading from Pie BETA to Oreo](https://forum.xda-developers.com/v20/help/lg-v20-f800l-how-to-downgrade-pie-beta-t3971971) (i am not on beta, i am on final release version or whatever it is called).
I tried checking my ARB using this code \*#\*#244773825625#\*#\* and my status is:
APPSBL(LK) 0 SBL1 0 TZ 0 RPM 0
I have F800K.
Yes you need the dev one to downgrade from pie.
awaisagha said:
Hi
I am on pie and want to downgrade to Nougat because of horrible battery life. Does anyone know if it is possible easily via LG UP & Uppercut and giving it the .kdz file or do I need to have the dev version of LG UP?
I am asking this because I read somewhere that pie will upgrade the policies and downgrading from pie won't be easy/possible. It would brick the phone. I know to downgrade from oreo is easy but does anyone have an idea of downgrading from pie?
There are some links which i am placing down here in case of reference.
[Downgrading from Pie BETA to Oreo](https://forum.xda-developers.com/v20/help/lg-v20-f800l-how-to-downgrade-pie-beta-t3971971) (i am not on beta, i am on final release version or whatever it is called).
I tried checking my ARB using this code \*#\*#244773825625#\*#\* and my status is:
APPSBL(LK) 0 SBL1 0 TZ 0 RPM 0
I have F800K.
Click to expand...
Click to collapse
By "dev version", are you referring to the modified one that allows you to upgrade and downgrade with no issues? I believe it has the modified .dll.
siheyo said:
Yes you need the dev one to downgrade from the pie.
Click to expand...
Click to collapse
Can you please please point the dev version of LG UP post because I tried finding in the forum and found different ones.
And I believe the rest of the steps for the downgrade are similar as to upgrade, there is no complicated process involved. Am I right?
Try searching LGUP DUAL MODE. It should on be on the top of the list..
For me (f800l) the step sometimes a little bit not standard. But it could be different from your device. Try that lgup dual mode first.

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