yashsingh1/xdaforums huggingface dataset:
[G4 Android Development] BrutalUK:
So anyway this rom is working well on my G4 but I used to use Android pay. But if I flash TWRP and stick Magisk back on (as per instructions) then I could use Android pay again but would it effect Alexa app?? I know I'm being a little greedy here wanting everything to work but having both the apps working would be perfect!
[G4 Android Development] Bleuzen:
Thanks for this! It works great on my device so far.
[G4 Android Development] dimangelid:
I just flashed the ROM on my LG G4 H815 and auto brightness is also turned off on me at every reboot. Also if i turn it off manually and set the screen brightness to any number (lets say for example 28%) after each reboot it resets and goes to 100%.

I see that i am not the only one with the issue. Is there any solution?

In other terms, ROM works great for now!
[G4 Android Development] Ciccius-IT:
Had this me too, many times on various Rom. The solution always was the same. Wait until it stops to do like this. No tricks, no magic. It goes right itself after some days. I don't know why. Try.

Inviato dal mio LG-H815 utilizzando Tapatalk
[G4 Android Development] stefan.kurz:
Your a wise man. Thx. For the moment all runs well and i'm able to test the beta nougat. Nice work.

Locking the bootloader seems to be a huge risk just to stop the message while rebooting.
[G4 Android Development] maydayind:
Still get ut after going back to fredoom rom.

Tried the other zip and it failed to boot
[G4 Android Development] alex2000robert:
I see you didn't test it. Indeed you don't even know how the G4 bootloader unlocks. You have to flash a file generated from the Product ID and the IMEI of the device (which you can obtain following the steps from this website: http://developer.lge.com/resource/mobile/RetrieveBootloader.dev?categoryId=CTULRS0702 ). This file is unlock.bin, and once flashed there's no way back as we know it.

EDIT: I better shut my mouth, I looks like I got to lock the bootloader again with fastboot oem lock. Which I tried on earlier SW and didn't work. Indeed I haven't seen anybody lock their bootloader again. Weird lol
[G4 Android Development] gabriel_dream:
[MENTION=5429122]alex2000robert[/MENTION] : you succed to unlock it again?

Trimis de pe al meu LG-H815 folosind Tapatalk
[G4 Android Development] alex2000robert:
You can relock it with unlock.bin. Can confirm. Check video I'll put on my thread https://xdaforums.com/g4/general/managed-to-relock-bootloader-t3660282 .
[G4 Android Development] Adooda:
I was wondering since I am bootloader locked on H815L, can I flash the F500K Kdz and then try to flash the modem from here somehow? does anyone know a way I can flash the modem alone?
[G4 Android Development] kessaras:
lol . i hope you have the unlock.bin in your email :D

i told you it would lock haha

so the theory is correct. you can boot fine with the stock recovery ?

you can try in bootloader. i don't know if the lock applies to modem partition too.

fastboot flash modem modem.img

simply rename the modem.bin to modem.img
[G4 Android Development] alex2000robert:
I did have it, check edit :) but it's weird, nobody managed to relock it even with fastboot oem lock. And yes, I can boot perfectly.
[G4 Android Development] kessaras:
heh nobody really tried then ;)

i have locked many bootloaders but not on phones that require password to unlock. i hate to re-send email and ask for the code....

And now mate that you flashed the poland beta 29a and locked your bootloader, how are you going to flash the next update to v30 ? :)

you are going to wait until lg feels for poland to release the v30 polish build or idk if it gets your current country and wait for the update where u r from ? :)

you know lg updates are like the wind. it comes from where it blows they are not organised and universal
[G4 Android Development] alex2000robert:
I'll install it with the KDZ file that will be launched using LGUP. I've seen people (including myself) trying with fastboot oem lock with definitely no luck, this software version must have something special :) it'll be good for recovering warranties lol :laugh: even tho LG might save the Product IDs that were used for unlocking bootloaders. Thx for the advice :D
[G4 Android Development] kessaras:
And some bad news for the other variants.

That old tool doesn't work to pack a kdz for nougat.

It doesn't even work on Windows 10 x64 ! The tool is too old.

Only LG has the tool to pack kdz nowdays...... If they ever release it...........

At least you can all hope for v30 ;)
[G4 Android Development] kessaras:
back to freedom ?

freedom is android 6. i havn't upgraded to 7 yet.

After you upgrade to 7 it's not that simple to restore an android 6 backup.

You need to flash MM v20p KDZ and then you can restore a MM backup.

Android 6 and 7 are different sdk versions. Going back and forth needs a clean install.
[G4 Android Development] mateus.sc:
I have a locked H815P running rooted 5.1, can I flash v29a modem and system using FlashFire or TWRP in FiSH?
[G4 Android Development] kessaras:
no. cause if you are not able to boot again you wont be able to rollback.

you will need to flash kdz and the consequences are unknown.

if the bootloader makes your phone "think" its a h815 international, will you be able to flash your official kdz to fix it ?

one question. if you flash kdz v20p of int. h815 , then you can flash your official P variant kdz ? if you can, then yes you can try and if it doesn't work, flash your official to fix it
[G4 Android Development] Komekokos:
I've been using the rom all day and works perfectly for me, but a question , you say in the second post that "Legacy Substratum works" then I can install any substratum theme with the stock rom? :confused:
[G4 Android Development] kessaras:
And the legacy module makes it safe to try the oms themes too. But oms don't paint our fonts. Fonts remain black color :( for the ui
[G4 Android Development] maydayind:
No problem except the boot warning.

Just restored a nandroid backupp..

Got rid of the warning message by flashing 20k bootloader and modem. Hosted on freedom rom download page. But it still booted fine on nougat bootloader but 4g data dropped signal now and then
[G4 Android Development] mateus.sc:
I think it wouldn't work cause the boot.img will remain LP right?

And is possible to flash kdz for any G4 model, just with some hex changes in the kdz file to match the model been reconized in pc
[G4 Android Development] maydayind:
Another q wound it be possible to flash this then without reboot flash twrp and then reboot to keep the recovery
[G4 Android Development] kessaras:
downgrade to MM ;)

nice. state this and title it so that no one again tell me that its impossible to downgrade ;) when i say something, its absolute
[G4 Android Development] dimangelid:
Thank you for the information. I installed the official v20P ROM (Marshmallow) because some important for me G4 Tweaksbox tweaks, do not work on Nougat. The same issue with the brightness also occur on that ROM.
[G4 Android Development] Adam074:
Flashlight doesn't work

Flashlight doesn't work with firmware h815 Nougat stock (a29) on my lg g4 h815.

the almost invisible laser light flashes instead
[G4 Android Development] Ciccius-IT:
I know. Just wait. And adjust brightness to auto every reboot since the phone understand! [emoji16]

Inviato dal mio LG-H815 utilizzando Tapatalk

---------- Post added at 06:52 PM ---------- Previous post was at 06:52 PM ----------

Never had issue like that [emoji848]

Inviato dal mio LG-H815 utilizzando Tapatalk
[G4 Android Development] Adam074:
sorry but it was a hardware issue with the flashlight, thanks for u attention.
[G4 Android Development] pepo930:
My battery dropped to 0% today and my phone turned off.

Now it's stuck in a bootloop where it gets to a white screen with "Android is starting" text, restarts and then goes to "Android is starting" again.

How do I fix this? I'm using the latest Titan kernel, this didn't happen with V20.

EDIT:

I tried booting into recovery but instead it erased my device.

At least it boots now.
[G4 Android Development] se1988:
I had the same problem. That kernel does NOT handle sudden battery pull /0% well. My phone factory reset itself every time that happened. Dropped phone, battery flew out. Factory reset. I had to pull the battery because the device hung. Factory reset.
[G4 Android Development] masukb:
Direct dial widget doesn't dial automatically on nougat. When I push it, it takes me to the call screen and I have to push call for it to call out.
[G4 Android Development] carlos15black:
Guys, I can't make windows 10 detects my lg g4 and my lg v10 into fastboot mode. It works with adb commands but not fastboot! Help
[G4 Android Development] bernavaldiesel1:
thanks

thanks to [MENTION=5461026]kessaras[/MENTION] and [MENTION=2042486]keriox[/MENTION], now I have this stock rom with root.:good::good:
[G4 Android Development] bernavaldiesel1:
thanks

thanks to [MENTION=5461026]kessaras[/MENTION] and [MENTION=2042486]keriox[/MENTION] for this tutorial, now I have root in this rom.
[G4 Android Development] Mass13:
Coming from LOS 14.1 and last Oreo Rom, I installed this stock again

Maybe something very obvious, but I cannot seem to find hiw to change screen resolution, icons are huge etc, somebody? :good:
[G4 Android Development] Ciccius-IT:
Settings-display-other-first option on the bottom.

Inviato dal mio LG-H815 utilizzando Tapatalk
[G4 Android Development] LPCG7:
Settings > Display > Display settings
[G4 Android Development] Mass13:
I did this, everything still huge
[G4 Android Development] Ciccius-IT:
I quote myself.

Sorry but mine is Italian so the menu name could be different.

There you will find a slider to set display object dimensions.

Inviato dal mio LG-H815 utilizzando Tapatalk
[G4 Android Development] Mass13:
I did but compared to other roms everything seems huge
[G4 Android Development] Lurensu:
https://xdaforums.com/galaxy-s7/how-to/guide-how-to-change-dpi-root-t3335596
[G4 Android Development] madman_cro:
Quick question . Since i got bootloop with that 4 core thing and i have acces to modified 4 core twrp recovery . can i flash this rom, directly reboot to bootloader since this recovery will be lost in flashing and just fastboot flash that modified recovery again?
[G4 Android Development] Ciccius-IT:
Someone said somewhere to change the recovery file in rom zip with TWRP one so when you flash rom you flash even TWRP instead of stock one. I don't know exactly how to do that risk free, perhaps someone here could help.

Inviato dal mio LG-H815 utilizzando Tapatalk
[G4 Android Development] madman_cro:
managed to do it. just flashed recovery strait after flashing rom without rebooting)
[G4 Android Development] Ciccius-IT:
Good [emoji106]

Inviato dal mio LG-H815 utilizzando Tapatalk
[G4 Android Development] bedencic:
does bootloader and modem have to be flashed seperatly, or does this include everything?
[G4 Android Development] tmihai20:
[MENTION=5131863]bedencic[/MENTION]: yes, I think so. It should have bootloader, modem and all stock V29A LG parts. I checked inside the zip I have here locally.
[G4 Android Development] kenfalco_14:
Thank you for this excellent work. It works very fine with calibrated battery too. But I made an horrible mistake. With twrp I deleted all things in my internal sd card. as well as twrp and clockwork recoveries. Now when I rebooted with adb in recovery mode I only can read "No commands". How I can reinstall the recovery?

Thank you in advance
[G4 Android Development] BogdanBodo:
Hello, I unlocked my device, flashed TWRP then flashed your rom succesfully but now I can't flash TWRP again, I did everything like the first time, the phone is recognized in adb, it says it is unlocked but when i try to fastboot boot twrp.img it says failed. Usb debugging in on. Someone please help me flash TWRP again

https://imgur.com/LdzvcOq
[G4 Android Development] raptorddd:
https://xdaforums.com/showpost.php?p=75315060&postcount=1735
[G4 Android Development] White273:
Hi Lads,

I installed this Rom months back and managed to disable my big cores, only problem now is that i need them back :P.

From what I know this is a Kernel thing, but question is how can I flash only the the kernel as TWRP isn't taking boot.bin?

Thanks in advance
[G4 Android Development] kessaras:
rename it to boot.img
[G4 Android Development] Passe123:
Hello,

The installation of this ROM solved me a Bluetooth issue. However, I am experiencing strange behaviors :

the KnockOn (or double tap) does not work most of the time

same issue with the vibrator which works time to time

I suspect something related to the power saving, I tried to play with exceptions "per app profile" in the battery settings without luck so far.

Does someone experienced something similar?
[G4 Android Development] nicolaslienart:
IR blaster doesn't work

Hi,

It seems that the IR remote function doesn't work, I tried with QuickRemote and third party apps on different kind of devices.

I'm unable to control them.

Is it a known issue :confused:

Thank you,

Nicolas
[G4 Android Development] sbasil:
I'm on stock v29a and IR is working just fine with my TVs (LG and Philips).
[G4 Android Development] vaskoa:
Hi,

I'm interested in carrier aggregation capabilities of H815. Particularly in aggregation of bands 3 (1800 МHz) and band 1 (2100 MHz).
[G4 Android Development] AbramsM1A2:
Bootloop

I tried twice but ends in boot loop, even with disable cores zip. Need some help here. Maybe im doing something wrong, idk. I tried flashing another rom like cydroid, still the same thing, the only thing that not ends in a bootlopp is the MM v20p kdz flashed with lgup.

It is not a hardware issue, cause lg fixed that months ago​
[G4 Android Development] kessaras:
it can be anything. you dont help me much just saying that you flashed twice and bootlooped...
[G4 Android Development] AbramsM1A2:
What can i do ?

What can i do to give you information, so you can help me. Maybe i just have to factory reset all the phone, or maybe make all the partitions again, but i dont know how to do it.
[G4 Android Development] kessaras:
go clean all now.

it is sensitive to do them exactly with this order otherwise you soft brick and you will need SALT to fix it.

adb reboot bootloader

fastboot erase boot

fastboot erase recovery

fastboot flash recovery recovery.img (latest preview N)

fastboot reboot

directly hardware key combo to go into recovery

wipe all yes , advance wipe and select data , system, cache and whatever is there.

reboot to recovery

adb sideload this rom from http://droid.binbash.it:8008/stock/LG/h815/29a/LG-H815_Official_v29A.zip

do not reboot yet.

adb push the recovery you downloaded earlier in sdcard: adb push recovery.img /sdcard/

Tap Install in TWRP and navigate to sdcard and select the recovery.img and install it in recovery partition (reflash twrp).

reboot.

If going full clean doesnt fix all issues then only god or repair center knows.
[G4 Android Development] AbramsM1A2:
i cant adb sideload, it just finishes with 0 seconds, and says failed in twrp, also says unable to unmount /data (resource busy), and i did the wipe before.

I am doing all with the usb plugged in. in my partition table i have data and system as ext4, idk if its okay

im using twrp-3.2.1-PREVIEW-97_g4_N
[G4 Android Development] street_android:
Good morning. Twrp is gone, root is gone with this stock rom and no matter what i try i can't load lgg4-twrp.img from adb fastboot. Fastboot getvar unlocked:says yes

I installed latest lg drivers,try to reinstall latest twrp.img through adb with no success, that's why i am here,i have the unlock.bin file from lg and my imei is ok. Should i try to lock the bootloader again with this method https://xdaforums.com/g4/general/managed-to-relock-bootloader-t3660282. what happened to the good old message bootloader unlocked:yes . Now it appears as an option to lock the bootloader again. Can't get to recovery though, can't load twrp. Life was good before installing this rom. I would appreciate some help.
[G4 Android Development] AbramsM1A2:
Okay i just installed MM again, through twrp and the phone was fine(it works), so i tried again to installing nougat coming from mm, but ends in a bootloop. I just flashed de enitre phone for MM. What can i do? Also appears the software corruption google icon in the bootloader
[G4 Android Development] kessaras:
you dont give me enough information. a slight mistake can cause bootloop. What i need is step by step your every move , i dont have a hidden video camera installed there !
[G4 Android Development] AbramsM1A2:
NEED help with nougat

1st i followed your steps for cleaning the phone:

adb reboot bootloader

fastboot erase boot

fastboot erase recovery

fastboot flash recovery recovery.img (used last stable version, twrp-3.1.1-1-g4)

fastboot reboot

directly hardware key combo to go into recovery

wipe all yes , advance wipe and select data , system, cache , internal storage, dalvik...i wipe all except sd card and usb otg.

reboot to recovery

Then i used the steps of this post: STOCK][M] NEW! H815 20G Images + KDZ + Flashable Zips (system+boot+modem+bootloader) by autoprime

1. I Put MM firmware in extrenal sdcard.

2. Also downloaded the latest SuperSu ( BETA-SuperSU-v2.67)

3. (re)Boot into TWRP

4. Install LG-H81520G-Flashable.COMPLETE.zip (Install > select zip > swipe to confirm/flash)

5. Install SuperSu zip (Install > select zip > swipe to confirm/flash)

6. reboot!

7. i have a working os

and finally i follow this post instrucctions

- Reboot to TWRP

- Advance Wipe -> /data , dalvik-cache, /cache

- Install Nougat

- Reboot.

and when the phones reboot, its a bootloop with lg logo
[G4 Android Development] kessaras:
then since you wiped data i dont get it why you bootloop.

try the same with Freedom rom that's stock too and doesn't replace recovery and tell me.
[G4 Android Development] AbramsM1A2:
Freedom works

Wow Freedom Rom v7.5 works, thanks for the answers, now i have nougat on my lg g4 ^^

PS: I donate $$$ to you

One last thing, i have only 1-2 signal instead of the 4-5 i had in my area. Modem related? how i fix it
[G4 Android Development] kessaras:
You flashed v29a firmware ? Post below op.

It's carrier related that. We can't change the signal strength easy. On a mistake you would either not have signal at all, or have.

Generally what you see is not always true there. LG stock based roms have a latency on signal bar.
[G4 Android Development] AbramsM1A2:
I flashed the freedom os v7.5 with the custom Aroma installer, not the stock fimware of this post. I mean is suppose to have the same v29a fimware, but installation process were different

I'll see this week if the signal goes well, or not.
[G4 Android Development] kessaras:
I asked about firmware not full os , not rom.
[G4 Android Development] AbramsM1A2:
Yes, its v29a
[G4 Android Development] kessaras:
Are you sure ? Before freedom you flashed kdz MM...

Go dirty flash latest firmware at least to be sure, just in case.
[G4 Android Development] AbramsM1A2:
yes, its v29a, check this photo then, https://drive.google.com/file/d/17b_0SjTYMoLcil6Va5UhSYHmDU7Q6DFR/view?usp=sharing
[G4 Android Development] kessaras:
thats not real. thats what LG wrote in build.prop.

Only you know if you really are on v29 , if you flashed it.
[G4 Android Development] AbramsM1A2:
i flashed it and taken the picture minutes ago, look at the hour in the screenshoot. I can confirm that i have the v29a....
[G4 Android Development] kessaras:
you make me tired...............................

one more time. last one. then u r on your own.

whats written there its fake. its what LG wrote in the build.prop.

v29a firmware is at a link at a post below the OP in freedom rom.

if you flashed it or not, its up to you now.
[G4 Android Development] AbramsM1A2:
I dont get it, what link are you talking about, you mean the link of modem and bootloader?
[G4 Android Development] Emdix:
Hey guys, I've flashed the "LG-H815_Official_v29A_keepsTWRP-LAF" file after wiping the whole device clean. And now I seem to run into the problem where I only boot into TWRP I've even tried to flash back to "LG-H81520G-Flashable.COMPLETE" but it still won't boot anything other than TWRP. I think i might have killed that device.

I'd be more than glad if there is hope for my device since it's my testing device since it bootlooped and i disabled the 2 big cores.
[G4 Android Development] steadfasterX:
flash the laf here in fastboot:

fastboot flash laf laf.bin

.
[G4 Android Development] Emdix:
Thanks for that fast reply. Unfortunately this hasn't worked.

fastboot flash laf laf.bin
target reported max download size of 536870912 bytes
sending 'laf' (49152 KB)...
OKAY [ 1.086s]
writing 'laf'...
FAILED (remote: cannot flash this partition in unlocked state)
finished. total time: 1.107s

My guess is that I was to tired and didn't read the guide properly since this happened at 2AM.
[G4 Android Development] steadfasterX:
ok boot up TWRP.

then:

adb push laf.bin /tmp
adb shell
dd if=/tmp/laf.bin of=/dev/block/bootdevice/by-name/laf

im not sure if that actually will fix your issue but thats the first thing coming in my mind

.
[G4 Android Development] Emdix:
Sorry for the late reply. Telekom had a major outage in my area.

I tried flashing the file via adb. Unfortunately it didn't work out too. TWRP is still the only thing that boots. Another thing I forgot to mention. TWRP doesn't detect any OS after flashing the V20G or V29A file. And before the LG screen shows up there is the corrupted bootloader screen. Is there any chance that I can extract some logs of the current state to help get more insight on my ****up?

[android@fwul Desktop]$ adb push laf.bin /tmp
laf.bin: 1 file pushed. 5.3 MB/s (50331648 bytes in 9.055s)
[android@fwul Desktop]$ adb shell
~ # dd if=/tmp/laf.bin of=/dev/block/bootdevice/by-name/laf
98304+0 records in
98304+0 records out
50331648 bytes (48.0MB) copied, 3.139590 seconds, 15.3MB/s
~ # [android@fwul Desktop]$

Still thanks for the help and the patience to help all the others in here! :)
[G4 Android Development] steadfasterX:
Well grab the recovery log.. how? Read my signature..
[G4 Android Development] Emdix:
Alright I grabbed the logs after trying to flash the V29a FW again.

recovery.log

dmesg.log
[G4 Android Development] steadfasterX:
Good. Go again to the TWRP thread and find the download link to the preview builds. Flash latest N TWRP. You have a totally outdated version..
[G4 Android Development] Emdix:
Are these with the 2 big cores disabled? I need one with both of the cores disabled since my device would just bootloop with them enabled.
[G4 Android Development] steadfasterX:
Nope you have to modify it on your own. I have made a guide for this here on XDA.
[G4 Android Development] Emdix:
After 1 hour of searching with my 0.5 megabit internet connection I came to the conclusion that I'm unable to use the search function of XDA to find your guide. Would you mind sending me a link? :D

Anyway have a great weekend :)
[G4 Android Development] steadfasterX:
https://xdaforums.com/g4/general/guide-create-custom-x-cores-boot-image-t3718389
[G4 Android Development] Emdix:
Switching to the newer TWRP version and flashing V29A again did the trick! Thanks a lot! :good:
[G4 Android Development] BrutalUK:
Finally got around to flashing TWRP again and installing Magisk so I can use G Pay. Just to say Magisk v16 and universal safetynet fix v2 beta 5 zip works 100%, passes check!
[G4 Android Development] deltaf007:
how can i root nougat?
[G4 Android Development] thewild:
If you have a recovery, just flash Magisk
[G4 Android Development] deltaf007:
No, i haven't recovery. How can I've recovery?

Inviato dal mio LG-H815 utilizzando Tapatalk
[G4 Android Development] thewild:
https://xdaforums.com/g4/development/recovery-twrp-3-touch-recovery-t3442424
[G4 Android Development] deltaf007:
thx , all done, recovery and root!!
[G4 Android Development] artefact_:
Hi, someone has an idea why my H815 bootloop when i unplug charger under this update ?

Same result at 100% battery charge.

It's very space...

Thanks guys !
[G4 Android Development] apashi:
I have a Vodafone Romania branded LG G4

LG-H815 - Model

V20l-226-01 - Software version

Can I use this way to upgrade it to Android 7 ?

Should I do something first?

Thanks!