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Hey guys,
First off, i thought I had already posted this question but I can not even find it in my ousting of posts. So I want to apologize I advance of this ends up as a duplicate.
I currently have a Sprint LG4 that upgraded to ZVA and I lost hotspot. Trying any method to downgrade, fails. Using LGUP fails with "SPC code does not match." and LG Flash Tool says error at DoDownload and nothing other than a code, 00000064. I have also tried the method using systemZV6.img and dd via SendCommand but nothing happens at all with that one after i press Enter and wait a few his.
I have tried various USB ports and all drivers I could find on these forums. Windows 7. Any other info I can provide to help you help me? I am no stranger to flashing other phones, but having no luck here. Searching the web hasn't turned up any help. Thanks in advance.
Is the phone bricked now? You can't downgrade from ZVA to ZV6, because the qfuse version is different.
Thanks apparently i missed that one somewhere as a search via duck duck go never gave turned up results that stated so. In fact the last posts of http://forum.xda-developers.com/sprint-g4/general/how-to-free-mobile-hotspot-root-t3165049/page16 led me to believe it was possible.
Fortunately it is not bricked. Thanks for your reply.
goumba said:
Thanks apparently i missed that one somewhere as a search via duck duck go never gave turned up results that stated so. In fact the last posts of http://forum.xda-developers.com/sprint-g4/general/how-to-free-mobile-hotspot-root-t3165049/page16 led me to believe it was possible.
Fortunately it is not bricked. Thanks for your reply.
Click to expand...
Click to collapse
Since it is not bricked, you could probably fix it by flashing the ZV9 update. I don't think there is a tot for ZVA yet, so you might possibly have to wait until there is one available.
ironbesterer said:
Is the phone bricked now? You can't downgrade from ZVA to ZV6, because the qfuse version is different.
Click to expand...
Click to collapse
if mine is ZVA, can I use the path ZVA -> ZV9 -> ZV6 to downgrade to ZV6? I mean using LGUP.
cbr150r said:
if mine is ZVA, can I use the path ZVA -> ZV9 -> ZV6 to downgrade to ZV6? I mean using LGUP.
Click to expand...
Click to collapse
I don't think you can even use ZV9. I know I said you probably could, but I forgot that's the whole reason you're here; because the qfuse version is different. You will have to wait until a ZVA TOT is available.
I could be wrong, but I'm not a dev. At least be thankful your phone isn't completely bricked.
I just downgrade from ZVA to ZV6 using LGUP. Just the first boot take more time than usual but I did factory reset and everything fine.
qfuse is not different. It should work fine.
netibiri said:
I just downgrade from ZVA to ZV6 using LGUP. Just the first boot take more time than usual but I did factory reset and everything fine.
Click to expand...
Click to collapse
Can you give more detail? I have used the TOT and instructions from http://forum.xda-developers.com/sprint-g4/development/restore-sprint-lg-ls991-zv6-tot-t3213196 and always get an SPC does not match error.
Having issues as well. ZVA>ZV6. When I dl the tot file and run it in LG up it says it's not a valid tot file. Also tried the LG flash tool method and get an error message. Any help?
goumba said:
Can you give more detail? I have used the TOT and instructions from http://forum.xda-developers.com/sprint-g4/development/restore-sprint-lg-ls991-zv6-tot-t3213196 and always get an SPC does not match error.
Click to expand...
Click to collapse
I just followed this http://forum.xda-developers.com/showpost.php?p=64197582&postcount=1
No problem, nothing special to do.
Hope this help you
Anyone try to update back to ZVA after root?
Once rooted you can't use the OTA updates because they will fail. They check for that kind of crap. Sucks, but you're stuck on ZV6 with root until the devs work out a bootloader unlock, which may take some serious time. LG sucks major donkey balls because they have some pretty secure bootloaders, now. The best thing you can do is stick with ZV6 at the moment. I know, I know, security patches! Marshmallow! Still, wait until they get something worked out.
Thanks, i figured. Only reason i ask is because im having an issue with mircast. Not sure if its because im on ZV6 or because im on UltraPop..
So we downgrade zva to zv6 or not
Can anyone successfully downgraded to zv6 if YeS so how
Br
Shahzaib Jahangir
Shabby The Dev said:
So we downgrade zva to zv6 or not
Can anyone successfully downgraded to zv6 if YeS so how
Br
Shahzaib Jahangir
Click to expand...
Click to collapse
Yes you can, I did it myself. The thread that shows you how is in the development section
Hi,
I have recently purchased a LG G4 LS991 and tried to find its rooting method but was unsuccessful so please if someone could point me in the right direction if the root is possible or downgrading is an only option.
Here are some useful details of my G4:
Android version 6.0
Kernel 3.10.84
Build MRA58K
Software version LS991ZVA
P.s I apologize, if this has been asked before.
Sarmad19 said:
Hi,
I have recently purchased a LG G4 LS991 and tried to find its rooting method but was unsuccessful so please if someone could point me in the right direction if the root is possible or downgrading is an only option.
Here are some useful details of my G4:
Android version 6.0
Kernel 3.10.84
Build MRA58K
Software version LS991ZVA
P.s I apologize, if this has been asked before.
Click to expand...
Click to collapse
http://forum.xda-developers.com/sprint-g4/development/stock-sytem-image-files-zv5-zv6-t3205640
You can only downgrade to zv6 which is rootable its not a one click method like before. But not to bad
TheMadScientist420 said:
http://forum.xda-developers.com/sprint-g4/development/stock-sytem-image-files-zv5-zv6-t3205640
You can only downgrade to zv6 which is rootable its not a one click method like before. But not to bad
Click to expand...
Click to collapse
I'm sorry, I'm total noob at this and don't wanna brick the device.
Can you please tell me the complete step by step instructions from ZVA to ZV6
Sarmad19 said:
I'm sorry, I'm total noob at this and don't wanna brick the device.
Can you please tell me the complete step by step instructions from ZVA to ZV6
Click to expand...
Click to collapse
http://forum.xda-developers.com/sprint-g4/development/restore-sprint-lg-ls991-zv6-tot-t3213196
Follow this guide download the zv6 tot back eall ure pics and such up and restore zv6 then follow first guid i gave u
TheMadScientist420 said:
http://forum.xda-developers.com/sprint-g4/development/restore-sprint-lg-ls991-zv6-tot-t3213196
Follow this guide download the zv6 tot back eall ure pics and such up and restore zv6 then follow first guid i gave u
Click to expand...
Click to collapse
Just to make sure everything is right, I will first flash zv6 from zva using LGUP and then root it?
ZVA and ZV6 has same qfuse version?
No flash the zv6. Zva is not rootable by my understanding
TheMadScientist420 said:
No flash the zv6. Zva is not rootable by my understanding
Click to expand...
Click to collapse
Thanks for the quick reply. I am now on ZV6 rooted.
Can you tell me how to disable OTA updates?
I have disabled Sprint_installer.apk through Debloater but it is still downloading the OTA.
I let it download and then long press it in notifacations then itll bring u into apps menu click on show notifactions that the cheap way im new to this phone too so i actually disabled mine with a gsm unlock package
can root lg ls991 zv9, but must buy tot rooted, have some people sell it now
hsrose11 said:
can root lg ls991 zv9, but must buy tot rooted, have some people sell it now
Click to expand...
Click to collapse
No ones gonna buy. Tot thats bull****
---------- Post added at 08:50 AM ---------- Previous post was at 07:55 AM ----------
TheMadScientist420 said:
No ones gonna buy. Tot thats bull****
Click to expand...
Click to collapse
Sorry i wasnt clear after i read i mean its bull crap that someones tryin to sell it. Not callin bullcrP on u im sorry again
hsrose11 said:
can root lg ls991 zv9, but must buy tot rooted, have some people sell it now
Click to expand...
Click to collapse
How much? Who's selling it? Does it have unlocked bootloader too?
tabp0le said:
How much? Who's selling it? Does it have unlocked bootloader too?
Click to expand...
Click to collapse
Lol more i think about it i would probly buy it too
tabp0le said:
How much? Who's selling it? Does it have unlocked bootloader too?
Click to expand...
Click to collapse
contact tungkick, dont ask about unlock bl now, nobody can answer
I want to share my experience with you guys.
So I've updated my LG G4 to ZVC firmeware, and read that is not possible to root it, and no unlock chances therefore. And since is really difficult to make downgrade once you've reached this version, I was totally freaked out that I wouldn't be able to unlock it.
And thanks to some brave community fellows that tried this method, I felt encouraged to do it.
In order to unlock your network, you have use a Global rom for ZVB firmeware, YES, it also works for ZVC. Said that, I have to tell you that this it's a risky method, and if you don't properly follow steps, you'll hard brick your phone, so do it at your own risk.
Here is the link:
http://forum.xda-developers.com/spr...-mellowmallow-debloated-60fps-camera-t3358340
Please, make sure to thank the OP and developers. Buy 'em a beer or something
Going from ZVC firmware, did you have to deviate at all from the instructions at that link you provided? Or did you get success following it exactly as written? I think you convinced me to take the plunge.
(Well, also to be fully honest, now that the V20 is available, I'm more willing to take risks with my beloved LG G4 in the secret hope I might break it and justify the expensive upgrade as being forced into it)
KingFatty said:
Going from ZVC firmware, did you have to deviate at all from the instructions at that link you provided? Or did you get success following it exactly as written? I think you convinced me to take the plunge.
(Well, also to be fully honest, now that the V20 is available, I'm more willing to take risks with my beloved LG G4 in the secret hope I might break it and justify the expensive upgrade as being forced into it)
Click to expand...
Click to collapse
Hi, just go to the link and follow the instructions there, you'll be alright.
I made this threat since everyone was confused about this firmeware version, and I wanted to share with you that YOU CAN UNLOCK the network once you are in ZVC as I DID. So no worries, you'll be able to unlock the sim from your LG G4 ZVC, using the ZVB procedure.
maxfloreshn said:
Hi, just go to the link and follow the instructions there, you'll be alright.
I made this threat since everyone was confused about this firmeware version, and I wanted to share with you that YOU CAN UNLOCK the network once you are in ZVC as I DID. So no worries, you'll be able to unlock the sim from your LG G4 ZVC, using the ZVB procedure.
Click to expand...
Click to collapse
you downgrade to ZVB and follow the instructions? or only download the global version of ZVB from the post and realize the process when the phone stay on ZVC?
DaNiElCoRe said:
you downgrade to ZVB and follow the instructions? or only download the global version of ZVB from the post and realize the process when the phone stay on ZVC?
Click to expand...
Click to collapse
In this particular case, just Install the ZVB Global rom (Even if you have ZVC like me). No downgrade needed. Once you've installed the ZVB Global rom (FOLLOWING THE ALL THE STEPS of the original post) you'll have your phone UNLOCKED and running ZVB.
In other words, it is not a downgrade process (Although you'll be downgrading your phone from ZVC to ZVB) NO ADDITIONAL STEPS for it, do like your device was on ZVB and please, don't skip any step and you'll be fine.
It worked for me, it will work for you. Good luck
maxfloreshn said:
In this particular case, just Install the ZVB Global rom (Even if you have ZVC like me). No downgrade needed. Once you've installed the ZVB Global rom (FOLLOWING THE ALL THE STEPS of the original post) you'll have your phone UNLOCKED and running ZVB.
In other words, it is not a downgrade process (Although you'll be downgrading your phone from ZVC to ZVB) NO ADDITIONAL STEPS for it, do like your device was on ZVB and please, don't skip any step and you'll be fine.
It worked for me, it will work for you. Good luck
Click to expand...
Click to collapse
LGUP can flash img files?
klurrant said:
LGUP can flash img files?
Click to expand...
Click to collapse
Yes, it does!
Please everybody, don't be afraid. Just follow the instructions and you'll be alright.
Ive seen this metthod done a bunch of times sucsessfuly. Ill vouch on it too. Is dangerous but follow instructions and there will be no issues
---------- Post added at 12:18 PM ---------- Previous post was at 12:17 PM ----------
klurrant said:
LGUP can flash img files?
Click to expand...
Click to collapse
Up only flashes kdzs and tots
maxfloreshn said:
I want to share my experience with you guys.
So I've updated my LG G4 to ZVC firmeware, and read that is not possible to root it, and no unlock chances therefore. And since is really difficult to make downgrade once you've reached this version, I was totally freaked out that I wouldn't be able to unlock it.
And thanks to some brave community fellows that tried this method, I felt encouraged to do it.
In order to unlock your network, you have use a Global rom for ZVB firmeware, YES, it also works for ZVC. Said that, I have to tell you that this it's a risky method, and if you don't properly follow steps, you'll hard brick your phone, so do it at your own risk.
Here is the link:
http://forum.xda-developers.com/spr...-mellowmallow-debloated-60fps-camera-t3358340
Please, make sure to thank the OP and developers. Buy 'em a beer or something
Click to expand...
Click to collapse
Doesnt work for ZVD need help to unlock
yapcogamer said:
Doesnt work for ZVD need help to unlock
Click to expand...
Click to collapse
Did you use LGUP to downgrade to earlier versions first? If I remember correctly, there might be a chance to use the ZVC tot file to revert from ZVD to ZVC?
KingFatty said:
Going from ZVC firmware, did you have to deviate at all from the instructions at that link you provided? Or did you get success following it exactly as written? I think you convinced me to take the plunge.
(Well, also to be fully honest, now that the V20 is available, I'm more willing to take risks with my beloved LG G4 in the secret hope I might break it and justify the expensive upgrade as being forced into it)
Click to expand...
Click to collapse
lol i just came across this one this is funny
KingFatty said:
Did you use LGUP to downgrade to earlier versions first? If I remember correctly, there might be a chance to use the ZVC tot file to revert from ZVD to ZVC?
Click to expand...
Click to collapse
we got an unlock thats works now
TheMadScientist420 said:
we got an unlock thats works now
Click to expand...
Click to collapse
is the unlock for zvd? if so do you by chance have a link id really appreciate it
gillim74 said:
is the unlock for zvd? if so do you by chance have a link id really appreciate it
Click to expand...
Click to collapse
Its a give or take thing some work some dont. Ill link wuen i get home
https://forum.xda-developers.com/sprint-g4/general/gsm-unlock-root-users-t3628314
TheMadScientist420 said:
Its a give or take thing some work some dont. Ill link wuen i get home
https://forum.xda-developers.com/sprint-g4/general/gsm-unlock-root-users-t3628314
Click to expand...
Click to collapse
Thanks it didnt work though.i see theres a rooted zvd system img you commented in its thread.do you know id it works or how your supposed to flash it.i did the dd commands but it instantly says fail
gillim74 said:
Thanks it didnt work though.i see theres a rooted zvd system img you commented in its thread.do you know id it works or how your supposed to flash it.i did the dd commands but it instantly says fail
Click to expand...
Click to collapse
zvd isnt rooted zv6 is the only rooted firmware and anything zvb and above cannot downgrade either
hardbrick can and will occur
a paid company or sprint is the only methods available unless root is found for zvb and greater
TheMadScientist420 said:
zvd isnt rooted zv6 is the only rooted firmware and anything zvb and above cannot downgrade either
hardbrick can and will occur
a paid company or sprint is the only methods available unless root is found for zvb and greater
Click to expand...
Click to collapse
Ok thanks i guess that post was junk.
gillim74 said:
Ok thanks i guess that post was junk.
Click to expand...
Click to collapse
if u will link it for me u might be able to if ure on zvd flash the mellow mallor international but no root
TheMadScientist420 said:
zvd isnt rooted zv6 is the only rooted firmware and anything zvb and above cannot downgrade either
hardbrick can and will occur
a paid company or sprint is the only methods available unless root is found for zvb and greater
Click to expand...
Click to collapse
Ok i was wrong its unlocked zvd system.img https://forum.xda-ought ofdevelopers.com/sprint-g4/general/unlocked-zvd-img-t3637359 does it mean sim unlocked and thats what i was trying to flash but just says fail.again thank you for all your help its really appreciated trying to sim unlock for my mom as i have the g6.when i first saw your screen nane first thing i thought of was breaking bad
gillim74 said:
Ok i was wrong its unlocked zvd system.img https://forum.xda-ought ofdevelopers.com/sprint-g4/general/unlocked-zvd-img-t3637359 does it mean sim unlocked and thats what i was trying to flash but just says fail.again thank you for all your help its really appreciated trying to sim unlock for my mom as i have the g6.when i first saw your screen nane first thing i thought of was breaking bad
Click to expand...
Click to collapse
ive never dont the method but can descibe it to a T
on marshmallow sprint closed the send command port on g4 so a very dangerous technique in opening it as follows kinda. you open lgup and flash some tot dont know which one but as soon as it hits 9% this is when the send command port gets opened You have to unplug the usb cable exactly rite time and the send port stays open then u can dd in the system image.
now it is dangerous can hard brick device but im digging up the links now
I have a friend with a bricked LG G4. It's a sprint model LS991. He has no idea what firmware he is on and so far I've tried ZVB ZV9 and ZV6. Every time it gets to about 10% and gives me "DoDownload Error!!!". I have been searching for hours and have found many people posting with the same problem but they seem to be ignored in most threads. Has anyone had this issue before and found a work around? Or can anyone at least tell me what it means? It seems to occur after this line:
CheckDL Validation
_prepareAfterDload download
00000064
DoDownload Error!!!
I have tried different DLL files (generic and model specific) as well as on Upgrade + DL and Board DL with no change. Any help would be greatly appreciated.
jdubs860 said:
I have a friend with a bricked LG G4. It's a sprint model LS991. He has no idea what firmware he is on and so far I've tried ZVB ZV9 and ZV6. Every time it gets to about 10% and gives me "DoDownload Error!!!". I have been searching for hours and have found many people posting with the same problem but they seem to be ignored in most threads. Has anyone had this issue before and found a work around? Or can anyone at least tell me what it means? It seems to occur after this line:
CheckDL Validation
_prepareAfterDload download
00000064
DoDownload Error!!!
I have tried different DLL files (generic and model specific) as well as on Upgrade + DL and Board DL with no change. Any help would be greatly appreciated.
Click to expand...
Click to collapse
either hes on zvc or zvd and u r flashing older firmware not possible due to antirollback or it has suffered from the ilapo bootoop
i see u r a newer user from now on please post ? in the q and a thread
I had the same error when on ZVC trying to flash a ZVB tot. I ended up using LGUP instead of LGFlash tool and it worked. Hope that this helps.
l33tlinuxh4x0r said:
I had the same error when on ZVC trying to flash a ZVB tot. I ended up using LGUP instead of LGFlash tool and it worked. Hope that this helps.
Click to expand...
Click to collapse
Right now i have ZVC software version can i downgrade ZV6 without brick????
pls check picture..... its possible or not???
hawzsth said:
Right now i have ZVC software version can i downgrade ZV6 without brick????
pls check picture..... its possible or not???
Click to expand...
Click to collapse
no it is not possible
TheMadScientist420 said:
no it is not possible
Click to expand...
Click to collapse
its brick how to repair it..........
Qualcomm 9008 showing on PC... pls help????
hawzsth said:
its brick how to repair it..........
Qualcomm 9008 showing on PC... pls help????
Click to expand...
Click to collapse
jtag is the only current soulution
octoplus box with jtag
---------- Post added at 08:28 AM ---------- Previous post was at 08:26 AM ----------
TheMadScientist420 said:
jtag is the only current soulution
octoplus box with jtag
Click to expand...
Click to collapse
put ure g4 in a drwar and get a new phone buddy
hawzsth said:
Right now i have ZVC software version can i downgrade ZV6 without brick????
pls check picture..... its possible or not???
Click to expand...
Click to collapse
No you cannot... There is anti rollback.
l33tlinuxh4x0r said:
No you cannot... There is anti rollback.
Click to expand...
Click to collapse
Don't know exacts. But he hard bricked it.
hawzsth said:
its brick how to repair it..........
Qualcomm 9008 showing on PC... pls help????
Click to expand...
Click to collapse
did u do this attempting to downgrade????
TheMadScientist420 said:
did u do this attempting to downgrade????
Click to expand...
Click to collapse
yes when i downgrade zvb to zv6 its brick and now no power on when i connect pc its show qualcomm hsusb 9008 error
hawzsth said:
yes when i downgrade zvb to zv6 its brick and now no power on when i connect pc its show qualcomm hsusb 9008 error
Click to expand...
Click to collapse
again sorry thats a hard brick and only way to fix is jtag rite now may change in fututre
LS991 ZVD TOT needed for boot repair ..
i will use this file with medusa pro to repair its boot ....
aamszia said:
LS991 ZVD TOT needed for boot repair ..
i will use this file with medusa pro to repair its boot ....
Click to expand...
Click to collapse
Pretty surer there is no zvd tot released.
How did u brick a zvd. With no root?
U sure its not a ilapoed boot loop or did u try and downgrade of so use lgup and emergency firmware recovery mode
TheMadScientist420 said:
Pretty surer there is no zvd tot released.
How did u brick a zvd. With no root?
U sure its not a ilapoed boot loop or did u try and downgrade of so use lgup and emergency firmware recovery mode
Click to expand...
Click to collapse
Downgraded with Octopus box flasher ... this software usually flashed directly without checking Boot Version .
aamszia said:
Downgraded with Octopus box flasher ... this software usually flashed directly without checking Boot Version .
Click to expand...
Click to collapse
Ah makes sense now.
Still aint found a zvd anywhere. I dont think one exist
any link for ota ?????
aamszia said:
any link for ota ?????
Click to expand...
Click to collapse
I dont think there is ive searched exhaustivly. Plus i dont think the ota will help. Need the whole tot. U might try to catch it with lgup. I have before. Find the folder that lg up store the temp download in as soon as its done move it to another folder. Up has a bad habbit of deleting them.
I may be wrong on the ota not helping. As it does upgrade the bootloader and such.
i guess i have to wait now to repair its boot ..
aamszia said:
i guess i have to wait now to repair its boot ..
Click to expand...
Click to collapse
Might check out. Jtag fixes but prob same boat need the firmware
still not available ?
aamszia said:
still not available ?
Click to expand...
Click to collapse
Heck no. And i gues theres a zve update.
And both lg and sprints website say zva was the last update i want the new build num and stuff. See if anythings changed on the dev end of it
Last tot i saw was zvc.