Recently i was looking for way to disable 2 cores on friends LG G4 and i found tutorial on youtube in witch is explanation how to downgrade from android 6.0 to 5.1:
"If you are on Android Marshmallow (6.0), not Lollipop (5.1), you will have to perform a downgrade (factory reset) first prior to flashing ILAPO fix, using the above mentioned LGUP app - instead of ticking "Upgrade" box, click the "Refurbish" box."
So my question is did someone tried this method to downgrade from ZVB and is it safe to try it myself - will LGUP just refuse to flash my LS991 or it will brick it if this doesn't work?
Let's bump this. I'd love to get rid of this damn MM crap.
vlabns said:
Recently i was looking for way to disable 2 cores on friends LG G4 and i found tutorial on youtube in witch is explanation how to downgrade from android 6.0 to 5.1:
"If you are on Android Marshmallow (6.0), not Lollipop (5.1), you will have to perform a downgrade (factory reset) first prior to flashing ILAPO fix, using the above mentioned LGUP app - instead of ticking "Upgrade" box, click the "Refurbish" box."
So my question is did someone tried this method to downgrade from ZVB and is it safe to try it myself - will LGUP just refuse to flash my LS991 or it will brick it if this doesn't work?
Click to expand...
Click to collapse
I would not try it. You run risking bricking your phone. I read the tutorial. I think there are 2 problems.
Correct me if I am wrong, but.........
1) I think ILAPO fix may not be compatible to the sprint variant.......at least the spring model LS991 is not included on the compatibility list.
2) The tutorial says if you are on MM 6, you need to first downgrade, by getting the proper Stock KDZ or TOT, then flashing lollipop ..........which is not possible on ZVB.
The "REFURB" option is for applying a STOCK rom, not the ILAPO fix
Hello friends.. I just bought an unlocked lg g4 (h811) and i found it running lollipop so i tried to check for an update but when i tap on the update centre it took me directly to apps update and there is no software update so i can't check for the update .. My software version is "h81110m" i also couldn't find the firmware for the manual update .... So any one can help me
HAMADA-SBA said:
Hello friends.. I just bought an unlocked lg g4 (h811) and i found it running lollipop so i tried to check for an update but when i tap on the update centre it took me directly to apps update and there is no software update so i can't check for the update .. My software version is "h81110m" i also couldn't find the firmware for the manual update .... So any one can help me
Click to expand...
Click to collapse
you need KDZ and LGUP. look here. i know 10n its lollipop
20i its marshmallow and latest its 20o. are you planing on rooting and use twrp.? if not you can only root 10n with locked bootloader. so you need to stay on 10n.. or upgrade to 20i MM. but do not flash 20oMM and go back downgrade to 20i- or 10n it will brick phone.
you need drivers-LGUP and KDZ. i think in the links you find everything
http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
raptorddd said:
you need KDZ and LGUP. look here. i know 10n its lollipop
20i its marshmallow and latest its 20o. are you planing on rooting and use twrp.? if not you can only root 10n with locked bootloader. so you need to stay on 10n.. or upgrade to 20i MM. but do not flash 20oMM and go back downgrade to 20i- or 10n it will brick phone.
you need drivers-LGUP and KDZ. i think in the links you find everything
http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Click to expand...
Click to collapse
Thanks man i will try it ... And btw anything about the mm cons and pros ?
HAMADA-SBA said:
Thanks man i will try it ... And btw anything about the mm cons and pros ?
Click to expand...
Click to collapse
i think LP gives you better battery.. and marshmallow i think it seems smoother.
HAMADA-SBA said:
Hello friends.. I just bought an unlocked lg g4 (h811) and i found it running lollipop so i tried to check for an update but when i tap on the update centre it took me directly to apps update and there is no software update so i can't check for the update .. My software version is "h81110m" i also couldn't find the firmware for the manual update .... So any one can help me
Click to expand...
Click to collapse
ive the same problem n same device h81110m i tried using the LGUP + kdz thing but LGUP doesn't recognize my device. I tried all non rooted steps but it doesn't recognize my device plz help how can i root it install twrp n upgrade to 20i
Aemyiam said:
ive the same problem n same device h81110m i tried using the LGUP + kdz thing but LGUP doesn't recognize my device. I tried all non rooted steps but it doesn't recognize my device plz help how can i root it install twrp n upgrade to 20i
Click to expand...
Click to collapse
you have LG drivers.?? also LGUP doesnt work on USB 3.0 try other ports in computer or another compute and see if it detects phone.
hello everybody
i have an lg g4 h811 running in lollipop 5 (h81110m build lmy47d) it's unlocked rom but not rooted
when i check for an update in the update centre it took me directly to apps update and there is no software update so i can't check for the update
if there is no solution but the manually update i want to know how and what should i do before update ( what i have to recover, do i need an sd card, what version of marshmallow is compatible, i want an official (stock) unlocked)
am not on t mobile operator so i need a rom which is already unlocked
thanks for helping me
elaid1988 said:
hello everybody
i have an lg g4 h811 running in lollipop 5 (h81110m build lmy47d) it's unlocked rom but not rooted
when i check for an update in the update centre it took me directly to apps update and there is no software update so i can't check for the update
if there is no solution but the manually update i want to know how and what should i do before update ( what i have to recover, do i need an sd card, what version of marshmallow is compatible, i want an official (stock) unlocked)
am not on t mobile operator so i need a rom which is already unlocked
thanks for helping me
Click to expand...
Click to collapse
mine was unlock am not on TMOBILE either. and i moved from LP to latest marshmallow using LGUP and KDZ file .. if you want to test marshmallow then go with 20i.. lollipop 10n and 20i are V2 antirollback. if you go latest 20o its V3 woull be stuck there.. so search for 20i KDZ and LGUP and flash it.
raptorddd said:
mine was unlock am not on TMOBILE either. and i moved from LP to latest marshmallow using LGUP and KDZ file .. if you want to test marshmallow then go with 20i.. lollipop 10n and 20i are V2 antirollback. if you go latest 20o its V3 woull be stuck there.. so search for 20i KDZ and LGUP and flash it.
Click to expand...
Click to collapse
thank you
links if possible ?
what about unlocking bootloader ? is it necessary & how to do it
i hope i shouldn't unlocke it again because i don't know how to do that (i want it to be in mm 20i unlocked rooted )
elaid1988 said:
thank you
links if possible ?
what about unlocking bootloader ? is it necessary & how to do it
i hope i shouldn't unlocke it again because i don't know how to do that (i want it to be in mm 20i unlocked rooted )
Click to expand...
Click to collapse
youll have to unlock bootloader .. actually thats how you unlock it gong into MM20i
theres all the info to unlock it and KDZ and LGUP.
http://forum.xda-developers.com/tmobile-g4/development/stock-h811-20i-images-kdz-flashable-t3308227
hello bought the imported lg g4 . using in india
hello i also have the same problem. i have the same T mobile lg g4 H811 10m version lollipop. my inbuit update centre is not working. i can update by above method manually but i fear my mobile hotspot wont work. i had sent it to my seller(ebay.in). They said that after updating hotspot wont work,so i said them leave it then(because for me hotspot is important). Actually i heard i US that they charge for mobile hotspot usage but in India mobile tethering & hotspot is free( i use airtel mobile).
so after updating it to marshmallow, how can i make the hotspot work on mobile?
i am a total beginner in this mobile world. So pls can anyone explain me very nicely & in simple way how to update it with mobile hotspot working?
---------- Post added at 07:08 PM ---------- Previous post was at 07:04 PM ----------
raptorddd said:
youll have to unlock bootloader .. actually thats how you unlock it gong into MM20i
theres all the info to unlock it and KDZ and LGUP.
http://forum.xda-developers.com/tmobile-g4/development/stock-h811-20i-images-kdz-flashable-t3308227
Click to expand...
Click to collapse
hey can u pls help me with this hotspot issue i have mentioned in my below post in this thread?
shreyam said:
hello i also have the same problem. i have the same T mobile lg g4 H811 10m version lollipop. my inbuit update centre is not working. i can update by above method manually but i fear my mobile hotspot wont work. i had sent it to my seller(ebay.in). They said that after updating hotspot wont work,so i said them leave it then(because for me hotspot is important). Actually i heard i US that they charge for mobile hotspot usage but in India mobile tethering & hotspot is free( i use airtel mobile).
so after updating it to marshmallow, how can i make the hotspot work on mobile?
i am a total beginner in this mobile world. So pls can anyone explain me very nicely & in simple way how to update it with mobile hotspot working?
---------- Post added at 07:08 PM ---------- Previous post was at 07:04 PM ----------
hey can u pls help me with this hotspot issue i have mentioned in my below post in this thread?
Click to expand...
Click to collapse
sorry i have not use hotspot ever.. so i cant help.. but make a new thread asking for that question.
issues with unlocking bootloader
raptorddd said:
sorry i have not use hotspot ever.. so i cant help.. but make a new thread asking for that question.
Click to expand...
Click to collapse
hey can u pls tell me how to unlock bootloader in my t mobile lg g4 h811 10m(its stock android 5.1)? I am fixed at this first step only......i am new to this developer thing, so i tried some but was unsuccessful to unlock. I will tell u what i tried.
i downloaded twrp img file & installed adb then ran cmd in twrp file location folder. i enabled usb debugging mode & oem unlock mode in developer options also. Then ran these steps
Code:
adb reboot bootloader (phone reboots to bootloader)
fastboot oem unlock (this wipes ALL data!!)
fastboot boot twrp-2.8.7.1-h811.img (phone boots TWRP)
BUT NOTHING HAPPENED. Pls anyone help me. i am fed up with this lollipop ****. In an era where people have reached Nougat,I am still there with lollipop ;-( (Actually i recently purchased this Lg g4 at a very cheap price. It was new one but i found that it was of USA carrier & i live in India. So basically i need to use this USA phone in India.
One more issue is there. This variant of LG g4 doesnt support Indian 4g band ( Band 40 aka 2300MHz). If u or anyone has solution for that then pls tell me also. How to run INdian 4g LTE band 40 in this phone which doesnt support it?
shreyam said:
hey can u pls tell me how to unlock bootloader in my t mobile lg g4 h811 10m(its stock android 5.1)? I am fixed at this first step only......i am new to this developer thing, so i tried some but was unsuccessful to unlock. I will tell u what i tried.
i downloaded twrp img file & installed adb then ran cmd in twrp file location folder. i enabled usb debugging mode & oem unlock mode in developer options also. Then ran these steps
Code:
adb reboot bootloader (phone reboots to bootloader)
fastboot oem unlock (this wipes ALL data!!)
fastboot boot twrp-2.8.7.1-h811.img (phone boots TWRP)
BUT NOTHING HAPPENED. Pls anyone help me. i am fed up with this lollipop ****. In an era where people have reached Nougat,I am still there with lollipop ;-( (Actually i recently purchased this Lg g4 at a very cheap price. It was new one but i found that it was of USA carrier & i live in India. So basically i need to use this USA phone in India.
One more issue is there. This variant of LG g4 doesnt support Indian 4g band ( Band 40 aka 2300MHz). If u or anyone has solution for that then pls tell me also. How to run INdian 4g LTE band 40 in this phone which doesnt support it?
Click to expand...
Click to collapse
first thing is you must be on 20i-20o firmeware... so flash using LGUP and KDZ 20i-20o ... at some point you would not be able to doengrade okey.. theres antirollback so if you want to be on LP and MM update to 20i MM this is antirollback V2 and lollipop 10n is V2 you can only switch between those 2.
if you go to 20o then thats V3 you are stuck there no more lollipop.. and if you so if you dont care about lollipop then i suggest to flash 20p thats the latest firmware it cameout like 1-2 weeks ago.
then you must place the twrp file image into the adb folder.. then once in twrp install image from sd card so when ever you boot into recovery you get to recovery this step is to enter recovery but its not installed on phone.
as fo bands i have no idea.. you also need to have phone sim unlocked to be used in india.. this is for unlocking bootloader and flash files roms ect.. not to unlock carrier.
Hey thanks for this detailed info but as i am completely new in this field i didn't understand some terms - what is V2,V3,anti rollback & KDZ?
& i tried using the LGUP + kdz thing but LGUP doesn't recognize my device. I tried all non rooted steps but it doesn't recognize my device. For LGUP to recognize my device i need to root it. But rooting again involves unlocking Bootloader which i can't figure out how to do.
So my main problem is how to unlock Bootloader of my t mobile lg g4 H811 10m?
---------- Post added at 06:03 PM ---------- Previous post was at 06:02 PM ----------
Hey but one more thing i didn't understand. Why people downgrade? Is Lollipop better than Marshmallow????
shreyam said:
Hey thanks for this detailed info but as i am completely new in this field i didn't understand some terms - what is V2,V3,anti rollback & KDZ?
& i tried using the LGUP + kdz thing but LGUP doesn't recognize my device. I tried all non rooted steps but it doesn't recognize my device. For LGUP to recognize my device i need to root it. But rooting again involves unlocking Bootloader which i can't figure out how to do.
So my main problem is how to unlock Bootloader of my t mobile lg g4 H811 10m?
---------- Post added at 06:03 PM ---------- Previous post was at 06:02 PM ----------
Hey but one more thing i didn't understand. Why people downgrade? Is Lollipop better than Marshmallow????
Click to expand...
Click to collapse
Marshmallow is way better than lollipop
Sent from my TegraNote-P1640 using XDA-Developers mobile app
shreyam said:
Hey thanks for this detailed info but as i am completely new in this field i didn't understand some terms - what is V2,V3,anti rollback & KDZ?
& i tried using the LGUP + kdz thing but LGUP doesn't recognize my device. I tried all non rooted steps but it doesn't recognize my device. For LGUP to recognize my device i need to root it. But rooting again involves unlocking Bootloader which i can't figure out how to do.
So my main problem is how to unlock Bootloader of my t mobile lg g4 H811 10m?
---------- Post added at 06:03 PM ---------- Previous post was at 06:02 PM ----------
Hey but one more thing i didn't understand. Why people downgrade? Is Lollipop better than Marshmallow????
Click to expand...
Click to collapse
V2 V3 are antirollback wich means you cant downgrade say if you used 20o kdz and you want to go back to lollipop you cant. because 20o its Version3 and lollipop its V2.
KDZ its the original friemware from LG
you dont need to be rooted.
care to explain steps you did exactly to LGUP.
LGUP cant see my mobile
raptorddd said:
V2 V3 are antirollback wich means you cant downgrade say if you used 20o kdz and you want to go back to lollipop you cant. because 20o its Version3 and lollipop its V2.
KDZ its the original friemware from LG
you dont need to be rooted.
care to explain steps you did exactly to LGUP.
Click to expand...
Click to collapse
I followed these steps mentioned in this thread http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
but lgup didnt see my mobile even though i followed mentioned steps. So they had another option, to see my mobile i had to do some changes in commands &that can be done only by rooting they( that thread) says. So to root first i have to unlock bootloader, which i am unable. I cant figure out why LGUP cant see my mobile. Is it because i am in India & mobile is of USA? Or maybe LGUP could access my location through my laptop? I just dont know? Hey is my mobile fake? Because when i opened my mobile i can see "made in South Korea" written on back side (when we remove battery)
shreyam said:
I followed these steps mentioned in this thread http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
but lgup didnt see my mobile even though i followed mentioned steps. So they had another option, to see my mobile i had to do some changes in commands &that can be done only by rooting they( that thread) says. So to root first i have to unlock bootloader, which i am unable. I cant figure out why LGUP cant see my mobile. Is it because i am in India & mobile is of USA? Or maybe LGUP could access my location through my laptop? I just dont know? Hey is my mobile fake? Because when i opened my mobile i can see "made in South Korea" written on back side (when we remove battery)
Click to expand...
Click to collapse
lg brand is korean... and are you on windows 10.? no if the phone isnt detected on LGUP theres something , maybe you dont have the right drivers it doesnt matter if you in india or anywhere else.. do a search and see if someone has had the sameproeblem i beleive ive seen this before i just dont know. but some where using windows 10... can you try in another computer and have the right drivers installed.
Yes i have latest version of Windows 10. Is there a problem with windows 10? I hadn't installed lg drivers at that time. Is installing lg driver necessary for lgup?
LGUP cant see my mobile
raptorddd said:
lg brand is korean... and are you on windows 10.? no if the phone isnt detected on LGUP theres something , maybe you dont have the right drivers it doesnt matter if you in india or anywhere else.. do a search and see if someone has had the sameproeblem i beleive ive seen this before i just dont know. but some where using windows 10... can you try in another computer and have the right drivers installed.
Click to expand...
Click to collapse
hey i have windows 10 & i installed lgunited driver but still lgup wasn't able to see my mobile.Do i had to install any other driver. Can u send the link of the driver? please help me with this. i want to update my phone badly.
shreyam said:
hey i have windows 10 & i installed lgunited driver but still lgup wasn't able to see my mobile.Do i had to install any other driver. Can u send the link of the driver? please help me with this. i want to update my phone badly.
Click to expand...
Click to collapse
try other computer w7.
Hi I am on same situation, i m from Delhi (India) having same G4 unit LP 811 10m. i am on windows 10 and my LGUP detect my phone without any problem. so my question is can i flash MM 20p or i need to flash MM 20i only? is it compulsory to unlock bootloader to do so?
HELP !!!!!
after update by LGUP phone is die black screen & don't start
it connect in pc as a QHSUSB_BULK what is this ?
where is the problem ????
raptorddd said:
try other computer w7.
Click to expand...
Click to collapse
Windows 7 is not possible as all of them whom i know have windows 10. I asked everyone, none of them had anything lower than Windows 10.
---------- Post added at 01:35 AM ---------- Previous post was at 01:30 AM ----------
dxavinash said:
Hi I am on same situation, i m from Delhi (India) having same G4 unit LP 811 10m. i am on windows 10 and my LGUP detect my phone without any problem. so my question is can i flash MM 20p or i need to flash MM 20i only? is it compulsory to unlock bootloader to do so?
Click to expand...
Click to collapse
Hey cheers on Diwali.
Can u give me the link from where you have downloaded lgup & which version of lgup you downloaded? Whether u had installed any drivers as well? From where u purchased your phone? I purchased this phone from ebay. Don't know why lgup is not able to detect my phone..... Any help?
dxavinash said:
Hi I am on same situation, i m from Delhi (India) having same G4 unit LP 811 10m. i am on windows 10 and my LGUP detect my phone without any problem. so my question is can i flash MM 20p or i need to flash MM 20i only? is it compulsory to unlock bootloader to do so?
Click to expand...
Click to collapse
flash 20p then install twrp. root if you want to run stock or just download custom rom and then flash it..
---------- Post added at 07:32 PM ---------- Previous post was at 07:31 PM ----------
shreyam said:
Windows 7 is not possible as all of them whom i know have windows 10. I asked everyone, none of them had anything lower than Windows 10.
---------- Post added at 01:35 AM ---------- Previous post was at 01:30 AM ----------
Hey cheers on Diwali.
Can u give me the link from where you have downloaded lgup & which version of lgup you downloaded? Whether u had installed any drivers as well? From where u purchased your phone? I purchased this phone from ebay. Don't know why lgup is not able to detect my phone..... Any help?
Click to expand...
Click to collapse
try it in anothers people computer..
Hello Guys,
My G4 has bootloop issue and in order to fix this, it needs to be rooted and disable the big cores. May I ask if you have rooted KDZ for H811 20p/o/q that you can share to me? I need to flash a rooted KDZ using download mode via LGUP.
Note that zip ROM won't work as I can't boot into recovery due to bootloop issue.
Thanks for the help in advance.
rollyusher29 said:
Hello Guys,
My G4 has bootloop issue and in order to fix this, it needs to be rooted and disable the big cores. May I ask if you have rooted KDZ for H811 20p/o/q that you can share to me? I need to flash a rooted KDZ using download mode via LGUP.
Note that zip ROM won't work as I can't boot into recovery due to bootloop issue.
Thanks for the help in advance.
Click to expand...
Click to collapse
theres no such thing for us h811 users.
Thanks for the info.
Hello guys, I currently AT&T LMV405UA0o I bought it not knowing that I cannot update it to any new android version without a sim card, I do not live in the us.
Now I want to install any stock firmware without the carrier blot ware and update it to android 10.
Now what I did is try cross flashing that did not work because of the crossdll error att_us > any other firmware, I tried using lgup_cmd It did not recognize any firmware I tried to flash so I give up on that.
I tried to unlock the bootloader with lg v35 bootloader, it worked now my bootloader is unlocked I erased my laf_a after taking a backup and now I have access to fast boot.
I will try to install twrp soon it should be easy the hard part is done. my question is how to install the unlocked stock firmware for my current device without the at&t stuff its already sim unlocked.
What firmware should I use, should I also flash magisc (I don’t really care about root), what boot section should I use I don’t wanna screw anything. I’m current on android 9 and it boots normally. Can u guys link me to guide for my issue.
Thanks in advance
YUUUHUUU said:
Now I want to install any stock firmware without the carrier blot ware and update it to android 10.
Click to expand...
Click to collapse
You can't install stock firmware with twrp. Unless someone converts the KDZ firmware to a twrp zip format, then it's not doable.
It *sounds* like you tried to use the 1.16 dll of lgup to crossflash, but the one that works is 1.14 dll for crossflash. After crossflashing, and if you need to refurbish the newer kdz, then use 1.16 for that.
It *sounds* like you tried to use the 1.16 dll of lgup to crossflash, but the one that works is 1.14 dll for crossflash. After crossflashing, and if you need to refurbish the newer kdz, then use 1.16 for that.[/QUOTE]
can u please let me know which guide i should use and what firmware to download if possible. the best case scenario for me is to remove the at&t rom completely.
YUUUHUUU said:
It *sounds* like you tried to use the 1.16 dll of lgup to crossflash, but the one that works is 1.14 dll for crossflash. After crossflashing, and if you need to refurbish the newer kdz, then use 1.16 for that.
Click to expand...
Click to collapse
can u please let me know which guide i should use and what firmware to download if possible. the best case scenario for me is to remove the at&t rom completely.[/QUOTE]
I'd suggest reading 2 guides, one for the V40 and one for the V35.
Both of those threads explain crossflashing, the V40 is more specific, but the V35 one has the basics. I'd recommend reading both threads in their entirety, most questions / comments you can gloss over, but some of them will be about your specific question, and many times you'll find answers there and know what to do when / if you happen upon the same problem.
What firmware? Well the latest 'open' version for wherever your region is of course. In the US that would be the V405QA720e_01_NAO_US_OP_1230.kdz - that's still Pie, but Q should be available soon. I'd suggest go slow with the process, be sure of what you're doing, as best as possible.
good luck