how to revert from lollipop to any kitkat rom - LG G Pro 2

I installed recently lollipop stock firmware and I want to revert to kitkat in order to install the recovery and flash the future v3.2 rom.
I tried flashing 2 different kdz firmware (10b and 10f) through download mode and the process is completed successfully 100% but the phone goes into reboot loop on both versions.
how can I revert to any kitkat rom ?

Any help guys?

Use LG Flash Tool 2014, select CSE Flash instead of Normal Flash, work for me downgrading lolipop to kitkat without any problem.

follow these instructions
http://forum.xda-developers.com/showthread.php?t=2785089
to be able to go to download mode,
turn off your phone
wait 10s
press volume up and connect the usb cable (without pressing the power button)
it will work without problem if you have the correct lg drive install in your computer.
I just spent +4 hours how to do it, and was able to. now I am in kitkat

mosh11 said:
I installed recently lollipop stock firmware and I want to revert to kitkat in order to install the recovery and flash the future v3.2 rom.
I tried flashing 2 different kdz firmware (10b and 10f) through download mode and the process is completed successfully 100% but the phone goes into reboot loop on both versions.
how can I revert to any kitkat rom ?
Click to expand...
Click to collapse
After Downgrade from Lollipop to Kitkat via KDZ:
Remove the Battery and make a Factory Reset with the Hardware Buttons,this works.

mosh11 said:
I tried flashing 2 different kdz firmware (10b and 10f) through download mode and the process is completed successfully 100% but the phone goes into reboot loop on both versions.
Click to expand...
Click to collapse
Use CSE flash not NORMAL in LG Flash Tool 2014 and everything will be OK...
Here are the instructions: http://forum.xda-developers.com/showthread.php?t=2797190
Read them carefully and go step by step. This is really easy...
Sent from my LG G Pro 2

kitkat kdz plz........
could you please give the kdz link,
i want to downgrade my g pro 2 but don't have stock kdz

asar-bhai said:
could you please give the kdz link,
i want to downgrade my g pro 2 but don't have stock kdz
Click to expand...
Click to collapse
http://lg-phone-firmware.com/mobile/index.php?id_mod=62
Sent from my LG-D838

ubabic said:
http://lg-phone-firmware.com/mobile/index.php?id_mod=62
Sent from my LG-D838
Click to expand...
Click to collapse
you sure about the link?
http://csmgdl.lgmobile.com has gone long time ago..

ubabic said:
http://lg-phone-firmware.com/mobile/index.php?id_mod=62
Sent from my LG-D838
Click to expand...
Click to collapse
this site has only v20b (lollipop)
not the kitkat kdz

asar-bhai said:
this site has only v20b (lollipop)
not the kitkat kdz
Click to expand...
Click to collapse
What is your phone model F350 or D838?
If you don't find it here then search little bit on other sites on the internet...
Sent from my LG-D838

f350.....
i have searched everywhere but nothing

Same here
I have the F350S running LP (wish I had stayed with KK as now cant do very much else!)
Have never found the 10b KDZ file anywhere so cant downgrade?

Related

[ONLINE][ROM][KDZ][ZIP]Official Optimus 3d rom list LGP920

FROYO:
V10B_00
KDZ
[*]V10D_00
KDZ
ZIP
[*]V10E_00
KDZ
ZIP
[*]V10K_00
KDZ
ZIP
GINGERBREAD:
V21A_00
KDZ
ZIP
V21D_00
KDZ
ZIP
V21E_00
KDZ
ZIP
NB. To flash Gingerbread rom.zip YOU NEED TO FLASH GINGERBREAD BASEBAND!!! ("HOW TO" HERE)
Thanks
dsixda for kitchen
Awesome! What can we flash it with though?
We need a custom recovery first then this probably needs to be compiled into a flashable zip
Sent from my SCH-I510 using XDA App
Fab985 said:
Uploading......
Click to expand...
Click to collapse
Grandissimo Fabio!!!!!!!!!!!Waterbear in cantiere????Convinci anche Ale a prenderlo
Link online
it's early for custom rom, let's start with this
Fab985 said:
Link online
it's early for custom rom, let's start with this
Click to expand...
Click to collapse
Hi,
and if I wanna try, how to flash ?
grazie
So is there a way to flash the stock rom...
Maybe Dev. Fab985 will be kind enough to give us the steps in flashing this KDZ (stock FW) file.
Yep. I used kdz updater on my optimus one, odin on my samsung devices and nvflash on optimus 2x. Will there be any program like this to flash original firmware.
How about these steps( http://forum.xda-developers.com/showthread.php?t=1060121 )from other LG phone? Will it work on O3D?
Just semi bricked my O3D
Doesn't boot anymore after changing some system files
And can't upgrade via the LG tool because it says my software is up to date already :s
I can get into this nice menu via holding down the volume down button while powering on and releasing it after the screen goes black.
Try this tutorial, i've successfully updated same version
http://forum.xda-developers.com/showthread.php?t=1156549
Your tutorial worked just fine.
Thanks!
Thanks to you for feedback
Just installed a app and it asked to re-boot the phone so i did and now it just gets stuck on the lg screen any ideas anyone ?
I haven't installed this rom btw still on the rom that came with the phone.
Any way you can do this again (upload package) with the latest ROM?
.kdz it's not possibile cause for now it's only OTA.
tomorrow if i can, i'll upload a nandroid backup
Cool thanks
the kdz I get from the LG update tool is V10D and after flashing that I am stuck on Firmware update screen :'(
Renegade_Rulez said:
the kdz I get from the LG update tool is V10D and after flashing that I am stuck on Firmware update screen :'(
Click to expand...
Click to collapse
are you sure about v10D? i've used LGMobile Tools few hours ago and it flashed v10B_00, then i've updated to v10D OTA

[Q] Updating to 4.4.3 with a custom recovery

Hi, I have a xt1032, UL and rooted, stock rom and kernel, Xposed with TWRP. The ota just hit my phone this afternoon and I have been trying in vain for hours to update it because I need the bug fixes badly. I am trying to find the OTA.zip file....either that or the stock recovery.img file. Thank you in advance!
3RAN7ON said:
Hi, I have a xt1032, UL and rooted, stock rom and kernel, Xposed with TWRP. The ota just hit my phone this afternoon and I have been trying in vain for hours to update it because I need the bug fixes badly. I am trying to find the OTA.zip file....either that or the stock recovery.img file. Thank you in advance!
Click to expand...
Click to collapse
lost101 said:
Here is the stock 4.4.2 recovery.img for US Retail XT1032.
[Download]
Flash using fastboot:
fastboot flash recovery recovery.img​
Click to expand...
Click to collapse
Thanks again, lost101
3RAN7ON said:
Hi, I have a xt1032, UL and rooted, stock rom and kernel, Xposed with TWRP. The ota just hit my phone this afternoon and I have been trying in vain for hours to update it because I need the bug fixes badly. I am trying to find the OTA.zip file....either that or the stock recovery.img file. Thank you in advance!
Click to expand...
Click to collapse
There u go;
http://forum.xda-developers.com/showthread.php?p=50029015#post50029015
i dont know is there a stock recovery img in the pack of last version but i think there is just read all install drivers then flash stock rec. and then update ota,if you deleted some system apps you will get error then u should flash system chunks only to fix it after that do ota till get 4.4.3 flash costum recovery root and that's it
Corel_vkl said:
There u go;
http://forum.xda-developers.com/showthread.php?p=50029015#post50029015
i dont know is there a stock recovery img in the pack of last version but i think there is just read all install drivers then flash stock rec. and then update ota,if you deleted some system apps you will get error then u should flash system chunks only to fix it after that do ota till get 4.4.3 flash costum recovery root and that's it
Click to expand...
Click to collapse
I flashed the stock recovery and also uninstalled xposed framework..still got an error message and update failed. I didn't delete any system apps but has some frozen thru TB. now defrosted and trying again. I'm on the T-mobile network (I thought it was cdma but I guess it's GSM) should my kernel be the174.44.1.falcon_umts.AWSRetail.en.us? because I noticed it no longer has the 'AWS' part..if anyone could offer some insight on that
So you didnt sucsess to install ota ? Why dont you flash stock rom maybe you have some errors in system and then update.My version is like u wrote (it was before update) xt1034 quote me if u done with flashing and get ota search on forum stock rom images im on phone cant find link right now .
Sent from my XT1034 using Tapatalk
Corel_vkl said:
So you didnt sucsess to install ota ? Why dont you flash stock rom maybe you have some errors in system and then update.My version is like u wrote (it was before update) xt1034 quote me if u done with flashing and get ota search on forum stock rom images im on phone cant find link right now .
Sent from my XT1034 using Tapatalk
Click to expand...
Click to collapse
No, no success for me yet- there are links up now in other posts for the xt1034 my friend. I think at one point I flashed the wrong firmware by mistake, cuz I definitely have a xt1032 and the version should show 174.44.1.falcon_umts.Retail.en.US but this pic has the AWS version for the xt1034 that is not right for the xt1032
Dude you dont know wich version u have remove back cover and see on battery then install US retail rom im post link in last reply.pm if something goes wrong im not at home right now .
Sent from my XT1034 using Tapatalk

GP 2 soft brick , TOT and KDZ not working

Device: F350S
Hy
My device was on Future V3.1(Lollipop). I flashed a recovery for 5.0 and installed Drake V1. All went well but model number changed to D838 . I again flashed same recovery in Drake v1 and flashed this rom http://forum.xda-developers.com/lg-g-pro-2/development/china-g3-v1-d838-t2979376. As per title it is for D838 but someone had commented that it is working fine in his F350. After flashing once i tried to boot the device it refused , after LG logo it showed security error and switched off. Recovery actions so far done by me:-
1. Downloaded latest kdz for F350S20b(Lollipop kdz since v10e is not available on web) , flashed it via LG flashtool 2014 but flashing interrupts at 2%
2. Downloaded tot and dll for v10e eidted tot using this guide http://forum.xda-developers.com/lg-...ssdl-error-t3020455/post59010479#post59010479 but it gives cross dl error.
3. Ph shows USER SO.O ASO.O B99 UHSS LG-D838 04.4.2 Hrev_10 D83810F at screen at the time of flshing tot.
I have tried all possible methods only option left is to flash D838 tot file in it . I just want to know is it safe to do so and what is going to be appropriate tot file for that. Moreover any other helpful option will be highly appreciated.
Ahmed Xperia p said:
Device: F350S
Hy
My device was on Future V3.1(Lollipop). I flashed a recovery for 5.0 and installed Drake V1. All went well but model number changed to D838 . I again flashed same recovery in Drake v1 and flashed this rom http://forum.xda-developers.com/lg-g-pro-2/development/china-g3-v1-d838-t2979376. As per title it is for D838 but someone had commented that it is working fine in his F350. After flashing once i tried to boot the device it refused , after LG logo it showed security error and switched off. Recovery actions so far done by me:-
1. Downloaded latest kdz for F350S20b(Lollipop kdz since v10e is not available on web) , flashed it via LG flashtool 2014 but flashing interrupts at 2%
2. Downloaded tot and dll for v10e eidted tot using this guide http://forum.xda-developers.com/lg-...ssdl-error-t3020455/post59010479#post59010479 but it gives cross dl error.
3. Ph shows USER SO.O ASO.O B99 UHSS LG-D838 04.4.2 Hrev_10 D83810F at screen at the time of flshing tot.
I have tried all possible methods only option left is to flash D838 tot file in it . I just want to know is it safe to do so and what is going to be appropriate tot file for that. Moreover any other helpful option will be highly appreciated.
Click to expand...
Click to collapse
Try flashing correct TOT file for your model? (without editing)
D838 - D838 TOT
F350 - F350 TOT
Finally unbricked my G pro 2
editing tot was not doing the job , i downloaded latest kdz for my device and tried to install it but installation did not get past 2%. Finally i edited kdz using hex editor and changed F350S with D838. Flashed using Lg flashtool 2014 without connecting to internet and voila.
Ahmed Xperia p said:
Finally unbricked my G pro 2
editing tot was not doing the job , i downloaded latest kdz for my device and tried to install it but installation did not get past 2%. Finally i edited kdz using hex editor and changed F350S with D838. Flashed using Lg flashtool 2014 without connecting to internet and voila.
Click to expand...
Click to collapse
and phone done or not done.>?
i can help you fix cross dll
tungkick said:
and phone done or not done.>?
i can help you fix cross dll
Click to expand...
Click to collapse
I've unbricked but still your guidance will be appreciated
Sent from my LG-D838 using XDA Free mobile app
my d850 att is fully erased when i go to twrp and boot it it says i have no os I've tried everything possible i need help
i faced almost the same problem when i flashed miui 7... it changed my phone's name to " optimus g pro 2 " and when i try to flash kdz it stuck at 2%.. and when i tried to flash tot with flash tools it said different model.. so i used build prop editor to change my phone's name and every thing went well..

Is 5.1.1 Downgradable ??

Hi
Is new update 5.1.1 Downgradable ? Can we Downgrade it to 5.0.1 ?
All we know 5.0.1 has root and 5.1.1 unrootable yet !
So i want to update and try the new software but may be i will not be able to downgrade it again ? AnyBody try it ?
in short, "yes". you can downgrade by flashing the appropriate 5.0.1 KDZ file.
Thank you spider
hi all
i just update to 5.1.1 then i Downgrade to 5.0.1 to be sure that i can , then i root it with no problem and backed to 5.1.1 to try the new update
thank u spider because of you i tried
Hi
I have a g flex 2 with software version v15a-234-15 ( Vodafone UK ) - How is it possible to downgrade this device?
no root , no downgrade.
http://forum.xda-developers.com/g-flex2/help/lg-g-flex2-stuck-hs-usb-qdloader-9008-t3136748
spiderx_mm said:
in short, "yes". you can downgrade by flashing the appropriate 5.0.1 KDZ file.
Click to expand...
Click to collapse
How are you able to downgrade when others are bricking their phones? Is the ls996 different?
Toyeboy said:
How are you able to downgrade when others are bricking their phones? Is the ls996 different?
Click to expand...
Click to collapse
mine is H959, so it might be different from I Series. H series can use LG Flash Tool and kdz files to upgrade/downgrade as you like. just need to make sure you use the CSE Flash method to wipe out everything when you flash.
spiderx_mm said:
mine is H959, so it might be different from I Series. H series can use LG Flash Tool and kdz files to upgrade/downgrade as you like. just need to make sure you use the CSE Flash method to wipe out everything when you flash.
Click to expand...
Click to collapse
Okay looks like the ls996 isn't as downgrade friendly. Something about a different bootloader. I basically can't enjoy a phone anymore without root so if a 5.1.1 method doesn't come quick I'll have to sell this one and get one that hasn't been updated.
Sent from my 831C using Tapatalk

Need Help!

I have a D800, recently unbricked by shorting pins, and i have managed to install TWRP and download mode is working. I can't run any rom. I need to flash a KDZ through download mode.
But all the KDZ are of 10a/10b etc , does any body know where I can find a 30x KDZ or how to upgrade without flashing numerous FOTAs?
or will my phone boot up if i install http://forum.xda-developers.com/devdb/project/dl/?id=13450? i think not, but still need to know.
ipatel said:
I have a D800, recently unbricked by shorting pins, and i have managed to install TWRP and download mode is working. I can't run any rom. I need to flash a KDZ through download mode.
But all the KDZ are of 10a/10b etc , does any body know where I can find a 30x KDZ or how to upgrade without flashing numerous FOTAs?
or will my phone boot up if i install http://forum.xda-developers.com/devdb/project/dl/?id=13450? i think not, but still need to know.
Click to expand...
Click to collapse
The AT&T D800 uses a TOT file to flash back to stock. Are you in the right section? If you have a D800 you can use this to go back to KK and it's just one FOTA thru AT&T to go to LP. http://forum.xda-developers.com/showthread.php?t=2663369

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