LS991 ZV9 to ZV6 Downgrade Possible ?
is it safe .. ..... i dont want a brick on my hands ,
Not had to do it but from what i read yes it is as long as you dont go no lower no zv5. And dont go to zvb
Installing LG Bridge right now
I'm rooted on 20i, do I have to pdate to 20o and then 20p? Can I just skip right to it? Then how do I get TWRP/Root?
lbhocky19 said:
Installing LG Bridge right now
I'm rooted on 20i, do I have to pdate to 20o and then 20p? Can I just skip right to it? Then how do I get TWRP/Root?
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I recommend to use LGUP and download 20p kdz. No need to go to 20o.
Note 20o and w0p are v3 antirollback so you cant downgradeto no lower then 20o..
Using LGUP once kdz file its unzipped . find it using upgrade option. Once selected 20p file close LGUP the select refurbished and flash .
I recommend turbos drakonis.rom
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 ....
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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
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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 .
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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 ?????
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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 ..
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Might check out. Jtag fixes but prob same boat need the firmware
still not available ?
aamszia said:
still not available ?
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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.
Hi guy, Is that possible to Downgrade from ZVB to ZV6 using LG Flash tool, Board DL ?
im ON H811 10m I WANNA ROOT N INSTALL TWRP ON 10m ANDROID 5.1 IM EXHAUSTED HELP!! can't reboot in bootloader "adb reboot bootloader" in terminal just reboot android so no root or twrp n someone on xda said upgrading 10m to 20i in download mode brick your device
Lg drivers are installed correctly in on win 8.1 2.0 port mtp mode work but LGUP n LGMobile Support Tool only recognize device in download mode Usb Debug n OEM Unlock is ticked
LINK Bricked10m
Aemyiam said:
im ON H811 10m I WANNA ROOT N INSTALL TWRP ON 10m ANDROID 5.1 IM EXHAUSTED HELP!! can't reboot in bootloader "adb reboot bootloader" in terminal just reboot android so no root or twrp n someone on xda said upgrading 10m to 20i in download mode brick your device
Lg drivers are installed correctly in on win 8.1 2.0 port mtp mode work but LGUP n LGMobile Support Tool only recognize device in download mode Usb Debug n OEM Unlock is ticked
LINK Bricked10m
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Click to collapse
root can be on locked bootloader on 5.1 only using rooted system.img
10n and 20i antirollback V2. you can flash this 2 if you stay there.. 10 is lollipop and 20i is MM.
20o-20p-20q-and latest 20R is antirollback V3 you can switched to any onf this once you flash 20o or higher.
you cant unlock bootloader if you are in lollipop.
you need to be on 20i and do the procedure.
raptorddd said:
root can be on locked bootloader on 5.1 only using rooted system.img
10n and 20i antirollback V2. you can flash this 2 if you stay there.. 10 is lollipop and 20i is MM.
20o-20p-20q-and latest 20R is antirollback V3 you can switched to any onf this once you flash 20o or higher.
you cant unlock bootloader if you are in lollipop.
you need to be on 20i and do the procedure.
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Click to collapse
20i procedure will brick my device in on 10m read the first post n the link ive posted kingoroot fail n stump root said your device is patched so idk i dont wann brick my new lg g4
Aemyiam said:
20i procedure will brick my device in on 10m read the first post n the link ive posted kingoroot fail n stump root said your device is patched so idk i dont wann brick my new lg g4
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no it wont... didnt you read what i posted.? 10n-20i V2. how can you brick in same antirollback.
now 20o-p-q-and r are V3.. NOW V3 to V2 yes hard brick. from 20o to 20i and lower brick.
didnt you see he says hes phone says is a sprint..
(when upgrading i've seen an ls991zv6 i don't know)
either hes board is not h811 tmobile and flashed a h811 kdz to sprint phone..... or he has a h811 and flashed a sprint kdz..
i have not seen this on G4 in G2 yes alot of places would say it was d800. in stickers and all but the motherboard were replaced with anothe variant. so a phone put up togethe of othe phones parts..
then if you dont trust me then i cant help you...
@MicroMod777 care to explain to this guy..
raptorddd said:
no it wont... didnt you read what i posted.? 10n-20i V2. how can you brick in same antirollback.
now 20o-p-q-and r are V3.. NOW V3 to V2 yes hard brick. from 20o to 20i and lower brick.
didnt you see he says hes phone says is a sprint.. .
@MicroMod777 care to explain to this guy..
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what if i have the same board? cuz i bought it from the same seller on ebay i guess and ik about v2 v3 antirollback thing but if i got it brick how would i go back to 10m? do you have link of stock 10m? i found some images for 10n and the 10h but nothing about the 10m
Aemyiam said:
what if i have the same board? cuz i bought it from the same seller on ebay i guess and ik about v2 v3 antirollback thing but if i got it brick how would i go back to 10m? do you have link of stock 10m? i found some images for 10n and the 10h but nothing about the 10m
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well... here am not so sure.. like i said in LG G2 there were franken phones made from different parts of other variatns.. but the motherboard was the one to pay attention to. the only way was to open phone and read the motherbard. as they could edit the numbers in software but not on print in motherboard.... this is so odd tough i have not heard this on G4... likei said i dont know what the other guy did. did he downloaded a wrong KDZ.? of did he had right KDZ and motherboard not matching H811. ??? only way is to read the model name number in motherboard..
i dont know... when i got my phone it had 10n lollipop.. never seen m or h. i know theres kdz in a page but i have never use..
a lil bit conversation over here about same topic https://forum.xda-developers.com/tmobile-g4/help/q-how-to-upgrade-to-marshmallow-manually-t3476295/post69467849#post69467849 but its until unsolved mystery.
raptorddd said:
well... here am not so sure.. like i said in LG G2 there were franken phones made from different parts of other variatns.. but the motherboard was the one to pay attention to. the only way was to open phone and read the motherbard. as they could edit the numbers in software but not on print in motherboard.... this is so odd tough i have not heard this on G4... likei said i dont know what the other guy did. did he downloaded a wrong KDZ.? of did he had right KDZ and motherboard not matching H811. ??? only way is to read the model name number in motherboard..
i dont know... when i got my phone it had 10n lollipop.. never seen m or h. i know theres kdz in a page but i have never use..
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he flashed 20i ( (h81110m build lmy47d)
after upgrading it with LGUP + kdz img file H81120i_00_0201 (to mm) ) his build # is same as mine..... my board is msm8992 does it matches with yours or its fake hardware... @MicroMod777 H811 One Click TWRP will this method work on 81110m?
dxavinash said:
a lil bit conversation over here about same topic https://forum.xda-developers.com/tmobile-g4/help/q-how-to-upgrade-to-marshmallow-manually-t3476295/post69467849#post69467849 but its until unsolved mystery.
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i see. i was helping there as well. but since i have not had USBHBULK and since then there was no way to fix. i see now they have some thread about unbricking.
i had that same brick on LG G2 but running KDZ. fix it on G2.. i think here is a different way with G4.
i wonder if that is the same situation. changed motherboard. and am not really sure if motherboards can be use in different variants.. only way is to physically see it.. but since you have warranty. then you are good.
---------- Post added at 11:46 PM ---------- Previous post was at 11:34 PM ----------
Aemyiam said:
he flashed 20i ( (h81110m build lmy47d)
after upgrading it with LGUP + kdz img file H81120i_00_0201 (to mm) ) his build # is same as mine..... my board is msm8992 does it matches with yours or its fake hardware... @MicroMod777 H811 One Click TWRP will this method work on 81110m?
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Click to collapse
am puzzled... i know in G2 they did that.. so could that be the case here.??
that doesnt help.. that app.
as i already told you. in G2 they can change IMEI and model number.. outside of phone would be a at&t housing then removing phone apart would show other model number for behind battery housing.. so they can edit software it could say d800 in about phone and version , ect d800 housing . but motherboard would be sprint...
guys am just sharing what i have seen in G2.. am not saying its same way.. its just my opinion and my toughts . what else could it be.??
nooo that program does not help. they can edit software info.. but not motherboard printed model.. what am saying is.. to make sure you have a real h811 in case they are building phones from other variants.
is to open phone and physically see the motherboard printed number.
read this..
https://forum.xda-developers.com/lg-g2/general/warning-to-people-bought-phones-ebay-t2991195
raptorddd said:
i see. i was helping there as well. but since i have not had USBHBULK and since then there was no way to fix. i see now they have some thread about ebay-t2991195[/url]
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MY lg g4 is original just checked the imei http://www.imei.info/ i tried G4 H811 One Click TWRP method and it worked twrp successfully installed then i flashed chainfire supersu zip and rooted
THANKS FOR HELP PROBLEM SOLVED
Aemyiam said:
MY lg g4 is original just checked the imei http://www.imei.info/ i tried G4 H811 One Click TWRP method and it worked twrp successfully installed then i flashed chainfire supersu zip and rooted
THANKS FOR HELP PROBLEM SOLVED
Click to expand...
Click to collapse
you should not give your imei out to public..
then you should not have a problem updating to 20i.