!!!!!!!!! Breaking news to sprint and possibly all g4 owners !!!!!!!!

TheMadScientist

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SO I HAVE TO PUT THIS IN NOW DO NOT DOWNGRADE IF URE ABOVE ZVA YOU WILL HARD BRICK THERE ARE NEW G4 USERS AND PEOPLE ARE TRYING TO DG ON ZVB ZVC ZVD OR ZVE IS A BIG NO NO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
THIS HAS BEEN DISCUSSED MANY TIMES........................................................................................

twrp exploit found waiting on official release. this is a ls991 sprint varient. exploit may and should work on all devices.
i am one of orig alpha testers and great thanks to the man it should hopefully be fully working and ready for mass production soon
if u want to check progress look and thank here but please guys for the love of it no spamming the man he and his time are a great addition to the lg community and myself and everyone here can and should respect that remeber no eta or will u's politly ask and have a great day xda
https://forum.xda-developers.com/g4/development/locked-twrpinfish-locked-g4-devices-t3573048 new link
prequisites so far
must be rooted means zv6 or lower zva or zv9 can be downgraded to zv6 one of the 2 not sure
and kernel must be set to permissive
on a lighter note i hate to rub it in but i got the first sprint g4 with twrp on it
 

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TheMadScientist

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You know im not one to complain very much. But i am quite upset with the sprint g4 community. I risk my device for the sake of the fun. And not even one thanks. 76 views and nothing. Did any of you ever think that now that this has happen mm will be next mm roms prerooted for twrp.
I make post after post to keep theis device alive and keep people updated. But nothing from the community. Im not asking for money or a place to stay. Just a simple thanks.
3 days after purchasing my device. I tear it apart to do a thermal paste mod which has clearly worked so far. Somethin like 2400 views. And i think 1 thanks
Just proves how demanding the world is this day in age but dont expect to help in return.
Again a thanks goes a long way
 

TheMadScientist

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This is great news, hope it leads to more.
I am orig lg ls991 tester and prob the only sprint tester. And i can tell u other than flashing modified kernels and recovs rite now just cause it adds to a secure boot error but upon twrp restore of orig boot parts all is good
This will be changing soon with efiboot. But for now this is wonderful
 

TheMadScientist

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This is great news especially after the past...What was it? Three developers claiming to have unlocked the bootloader? If only I was a Dev then I could rack my brain and try to figure out how to beat anti-rollback to get back to lollipop.
Yea it would be great if every one could enjoy this.
Octoplus box with jtag. I think can do it but 350 bucks.
I oredered one a few days ago. I cant wait i got another lg with antirollback i wanna try it on
Im hoping this will bring in new devs and someone will figure this out too
 

TheMadScientist

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This is great news especially after the past...What was it? Three developers claiming to have unlocked the bootloader? If only I was a Dev then I could rack my brain and try to figure out how to beat anti-rollback to get back to lollipop.
The bootloader is still locked. This method hijacks the ramdisk and installs twrp somwhere else. Still have stock recovery too. Which i guess is cool never had 2 recovs at same time before
Like i said earlier no go on flashing anything modified on boot and recov partitions. Still secure boot errors. I wish i had a mm stock kernel zvd id see if i could flash and then restore zv6 twrp.
Has worked in past.
Either way man gets a prize. Hes is working on booting efidroid to multi boot which leaves to install anything ontop of orig kernal unmodified. So still wip but opens the door for rr cm anything through efidroid and dual boot.
 

shadow775

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Just want to say thanks to the community for there hard work it's very much appreciated. Also I had a question, I have a lg g4 sprint version I'm on zvb mellow mallow, can it be downgraded for me to install the hack?
 
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TheMadScientist

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Just want to say thanks to the community for there hard work it's very much appreciated. Also I had a question, I have a lg g4 sprint version I'm on zvb mellow mallow, can it be downgraded for me to install the hack?
Unfort no. Zva and lower. Untill we find a way to beat qfusing. Which 1 day ofcoarse. No avail yet.
I might try this hex edit software and see if i can modify the antirollback qfuse. Either get all firms to say same as zvb c d or e. Dont get hhopes up yet.
But hopfully got a few theories. Ima start with zv5. Cause im not getting stuck if fail on zvb or higher
 

HashtagFTW

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Wow this is really great news for ZV6 users! Hopefully the qfuse on the LS991 isn't un-exploitable like KNOX or something... It would be amazing if Octoplus box could actually do something about the horrible anti-rollback. Thanks for the great news!
 
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TheMadScientist

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Wow this is really great news for ZV6 users! Hopefully the qfuse on the LS991 isn't un-exploitable like KNOX or something... It would be amazing if Octoplus box could actually do something about the horrible anti-rollback. Thanks for the great news!
Well i ordered one a week ago. Ima find out. Some claims say it can with jtag. Ive been reading loads of hex edits seeing if i can edit a zv5 boot image to think its got a zv6 qfuse. But no luck yet. Ive been sick all week so far and runnin on about 7 or 8 hours of sleep since monday. So im pretty out of it. Lol.
Aint no smoke or no drink compare to sleep deprivation i thought i was seeing stuff last night. Which i know is possible. Ive been catchin a hour here and there. Everyones been passin around the flu and of coarse im always the last to catch it.
With twrp. Just downgrading boot image to zv5 isnt enough. Im not attempting a higher boot image yet. Im not getting stuck on a unrootable firmware.
 

klurrant

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Hate to be THAT guy, but those of us on ZVB are screwed anyway, so what's the point? I mean, If you Wanna spend 150+ dollars USD, you can unlock the bootloader on these as far up as ZVA, with a GCProKey. Proof of bootloader unlock support./
You mean those of us on ZVB, ZVC, ZVD, and ZVE etc etc etc....pretty sure the overwelming majority of Sprint LG G4 owners .....and LG G4 owners

Thanks for the efforts though.