[TEST-TWRP][LL] @all LOCKED H81x users: I need your help :)

[ReeS86]

Hey not sure if this is still relevant but I'm able to get into Download mode into my H812 using a slightly different method than the one I tried originally. If I just power the phone down completely and hold Vol-up and plug the cable into the computer (don't push power) it boots into Download Mode. I wasn't able to see any connected devices in fastboot but I have to play with it and see if I have the correct drivers installed - I was able to use LGUP to flash a KDZ but not sure the difference.

See photo below - the text in the small box at the bottom isn't visible due to crappy camera on my tablet but it's "USER G70"

 

[steadfasterX]

Now if the American variants (barring T-Mobile) didn't have anti-rollback, I'd gladly test this. Even if we manage to circumvent the anti-rollback measures, we'd then have to figure out how to enable fastboot.

fastboot is no requirement . check the OP for the new requirements.

Sent from my LG-H815 using XDA Labs

 

[steadfasterX]

Heres screenshot

Lol okay then I misunderstood you .you have permissive mode and that's all we need. That's why I always ask for screenshots

Sent from my LG-H815 using XDA Labs

 

[TheMadScientist]

99

Now if the American variants (barring T-Mobile) didn't have anti-rollback, I'd gladly test this. Even if we manage to circumvent the anti-rollback measures, we'd then have to figure out how to enable fastboot.

Now i hve done it on my sprint vrient.
I can nuke my laf partition and boot to fastbook but no more than basic commands are accepted. And i also lose dl mode til i restore orig laf partition

 

[LaughingCarrot]

fastboot is no requirement . check the OP for the new requirements.

Well that's exciting. Now we just need to figure out how to bypass anti-rollback without hard bricking.

 

[steadfasterX]

The state of my hack (2017-03-13)

1. FULL takeover/hijack of boot -> DONE (the modifications required are not voiding the Android boot signing chain!)
2. replace RAM disk -> WIP (most parts done)
3. boot own RAM disk -> WIP (booting already!!! FIsH's concept works and most parts done here as well)
4. boot efidroid instead of TWRP -> not started yet (waiting for the testers feedback)

First ALPHA release was send out to the alpha testers just NOW... I'm very excited how it works for them.. :fingers-crossed:



.

 

[CygnusBlack]

Nice! Congratulations!

 

[TheMadScientist]

alpha works on ls991 sprint varient guys make sure to give the man his need thankx and donations he gets to pot

 

[rakshikashyap]

Wohooooo....

Sent from my LG-H818 using XDA Free mobile app

 

[TheMadScientist]

Wohooooo....

Sent from my LG-H818 using XDA Free mobile app

havnt tried much did make a back up

---------- Post added at 06:51 AM ---------- Previous post was at 06:50 AM ----------

havnt tried much did make a back up

might have to pull the g4 back off the shelf boys bring the ole girl out of retirement

 

[uio88]

Good work my friend!

 

[TheMadScientist]

The state of my hack (2017-03-13)

1. FULL takeover/hijack of boot -> DONE (the modifications required are not voiding the Android boot signing chain!)
2. replace RAM disk -> WIP (most parts done)
3. boot own RAM disk -> WIP (booting already!!! FIsH's concept works and most parts done here as well)
4. boot efidroid instead of TWRP -> not started yet (waiting for the testers feedback)

First ALPHA release was send out to the alpha testers just NOW... I'm very excited how it works for them.. :fingers-crossed:



.

so can i or should i flash anything simple and i noticed unable to mount system but its got system image mounted?

 

[sumitverma1]

I have g4 H818P and getenforce is permissable.. Felling so exited

Sent from my LG-H818 using XDA-Developers Legacy app

 

[TheMadScientist]

I have g4 H818P and getenforce is permissable.. Felling so exited

Sent from my LG-H818 using XDA-Developers Legacy app

dont know if it would be considered a beta but he made a few mods a little while ago and reposted the files and twrp is also persisting throught reboots

---------- Post added at 07:22 AM ---------- Previous post was at 07:18 AM ----------

been a long time wating and im so excited i can be a part of this
its 730 am been up since 2 or 3 here snowin like hell.
i caught the flu from everyone in the house yesterday so sicker than a dog im im still jumpin for joy
every one make sure to give him the thanks and remeber the old donation pots

 

[steadfasterX]

so can i or should i flash anything simple and i noticed unable to mount system but its got system image mounted?

well yes.. when twrp boots up /system isn't fully ready for it. keep in mind that hack is totally brutal (that's why i named it "Fluffy Incredible ..." lol)
when you can mount system manually then all is good
you can open the file manager in twrp (advanced -> file manager) and browse to system. it should contain a lot of folders after you mount it manually.
if that is true just ignore the message.

keep in mind: do not touch boot or recovery partitions. you can backup them without any harm and even restore (well .. untested!) but do not modify anything there (just a reminder because its so important )


.

 

[TheMadScientist]

well yes.. when twrp boots up /system isn't fully ready for it. keep in mind that hack is totally brutal (that's why i named it "Fluffy Incredible ..." lol)
when you can mount system manually then all is good
you can open the file manager in twrp (advanced -> file manager) and browse to system. it should contain a lot of folders after you mount it manually.
if that is true just ignore the message.

keep in mind: do not touch boot or recovery partitions. you can backup them without any harm and even restore (well .. untested!) but do not modify anything there (just a reminder because its so important )


.

i restored them works good only fail is backing up system image
ill try mounting here in a min started snowin real bad so im getting the chickens fed lol
`

---------- Post added at 07:36 AM ---------- Previous post was at 07:30 AM ----------

well yes.. when twrp boots up /system isn't fully ready for it. keep in mind that hack is totally brutal (that's why i named it "Fluffy Incredible ..." lol)
when you can mount system manually then all is good
you can open the file manager in twrp (advanced -> file manager) and browse to system. it should contain a lot of folders after you mount it manually.
if that is true just ignore the message.

keep in mind: do not touch boot or recovery partitions. you can backup them without any harm and even restore (well .. untested!) but do not modify anything there (just a reminder because its so important )


.

mounted sytem can view system files and backup im try somthing simple like viper4android

 

[TheMadScientist]

so i figure start simple i just flashed v4a and works great did have to mount sys first before flash but sucsessful
Now guys remember
My g4 is a shelf unit now. I dont care to test and brick mine. Wait for any confirmations from op before doing anything. And remeber what works for me may not work for you.

 

[steadfasterX]

Thanks @TheMadScientist420

updated the OP:

The state of my hack (2017-03-14)

1. FULL takeover/hijack of boot -> DONE (the modifications required are not voiding the Android boot signing chain!)
2. replace RAM disk -> DONE
3. boot own RAM disk (TWRP!) -> DONE (atm TWRP 2.8.7-0)
4. Upgrade bundled TWRP to latest version -> not started yet (build compatible with LL required)
5. Prepare public release -> WIP (do not ask for ETA's!)
6. boot efidroid instead of TWRP -> WIP (build ok but not booting)

 

[TheMadScientist]

so as op said do not mess with boot or recov partition remeber u still have locked bootloader
but this opens doors for say on ls991 stock based zv6 roms as long as when theyre made and flashed u use the stock zv6 kernal or i would assume flash any said in my case lolipop rom only and restore orig boot partitions will test this therory out to see if i trip the lg sigs and get secure boot errors

 

[Aaahh]

Nice to see this, my LG bootloopped long ago when I started so it's nice to see someone completed this idea