[STOCK][M] NEW! H815 20G Images + KDZ + Flashable Zips (system+boot+modem+bootloader)

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autoprime

Recognized Dev / Inactive Recognized Contributor
Jun 23, 2010
2,642
11,916
PPznrzD.jpg


These are for the H815 variant only. Files are from software version 20G (Android 6.0 Marshmallow)... more specifically from the 20G Poland carrier-free version. Included below: TWRP-flashable stock rom, boot, modem and bootloader zips. KDZ and individual images are also included.

20G NOTES...
Improved stability for apps.
Phone usability and functionality has been further improved.
Android Security Patch = 2016-07-01

*There is NO anti-rollback qfuse used in this update*

Requirements:
You must have TWRP 2.8.7+ installed to use these zip files. Thanks to Dees_Troy as always for that. And, of course, you must have your bootloader unlocked for TWRP to work. Currently only H815 EU and (some) SEA variants have official unlock through LG's unlock page HERE. Please do not ask if "model x" is supported... did you unlock via LG's official unlock tool? Yes? then you can use the zip. No?.. then you should skip the zips and just flash the KDZ instead.

If you have a locked bootloader and want to upgrade... just use LGUP and flash the KDZ. Don't risk it with FlashFire.

Install Directions:
These directions should be used by everyone who wants a rooted 20G system.
Don't want root? Then it's probably easiest to just flash the stock KDZ using LGUP HERE... or just skip the SuperSu steps.

1. Download LG-H81520G-Flashable.COMPLETE.zip listed under the download section and place it on internal or external sdcard.
2. Also download the latest SuperSu zip (2.67+) from HERE [Thanks to Chainfire for his auto-patching boot.img version!]
3. (re)Boot into TWRP if not there already.
4.* Backup current partitions: boot, system, data, efs (backing up anything is optional but suggested)
5.* Up to you if you want to wipe data (TWRP > Wipe > Swipe slider) but not needed if coming from a stock rom.
6. Install LG-H81520G-Flashable.COMPLETE.zip (Install > select zip > swipe to confirm/flash)
7. Install SuperSu zip (Install > select zip > swipe to confirm/flash)
8. After zips finish flashing you can reboot! (if TWRP asks if you want to install SU, HIT NO!!!)

Please do not mirror my files!
Downloads:
LG-H81520G-Flashable.COMPLETE.zip
LG-H81520G-Flashable.Modem.zip
LG-H81520G-Flashable.Boot.zip
LG-H81520G-Flashable.Bootloader.zip
H81520g_00_0720.kdz

Also, all stock images for 20G are available in the link below...
CODEFIRE DIRECTORY

MD5 Sums:
Click button below to view MD5 for each file...
MD5 (aboot.img) = 7c493525861c4266d530e738062fc315
MD5 (boot.img) = 2875872b0a1d2805d9b2733288b9a8fb
MD5 (cust.img) = d7af7d1b148e14b2aa2d66e16ffd54a4
MD5 (factory.img) = 8d382e47c15ce8e7e40ab4d23a62681c
MD5 (hyp.img) = d049d428439dcd6b5a86c31fcfe29308
MD5 (laf.img) = 0b8aa1bc5ee9983b86bd9a8bccb337d2
MD5 (modem.img) = 714083449d733ed086a88eb192d77994
MD5 (persist.img) = 3d77aadd5ac3f6fb740c1af4798a8827
MD5 (pmic.img) = 03482eec78f8b7d29146c8f384b3c437
MD5 (raw_resources.img) = 9aa291963a8d7b8757d3da5a482a0bbe
MD5 (rct.img) = 03e489583925004bab373b4fd71ab251
MD5 (recovery.img) = d189812d83478840bc50a8d38bff02bf
MD5 (rpm.img) = 60901753bf5929dcf59aa3d31b3bb036
MD5 (sbl1.img) = f69b18f074eded758418f911d7664c6e
MD5 (sdi.img) = ad50c1ef2f127e2f5ab1b87d550a036f
MD5 (sec.img) = 6cd71a0e217d8aac823028c8c520808e
MD5 (system.img) = 0aad230efe49fb2dabf4a31c62272a20
MD5 (tz.img) = 9425a1d8a298b899ddd42d31a9e3b927

MD5 (LG-H81520G-Flashable.Boot.zip) = 2bb3b8e280ab65eead6e4fee424ba747
MD5 (LG-H81520G-Flashable.Bootloader.zip) = 801c446c09866efb341faacf71d96a80
MD5 (LG-H81520G-Flashable.COMPLETE.zip) = b098f7031e95f52ccbc1c37039468bce
MD5 (LG-H81520G-Flashable.Modem.zip) = 1e896ae6cb179c79c3ff90754da0925f


Downgrade:
To downgrade you can use TWRP to restore your backups... and then just flash the matching bootloader zip and modem zip from my previous threads... or just check the CODEFIRE DIRECTORY link for previous stock files.

OR

Use LGUP HERE to flash a previous KDZ version. KDZ will remove TWRP but easy enough to reinstall that.

Unofficial Bootloader Unlock:
Don't have official bootloader unlock? This guy claims to have a working method HERE...
y u quote OP?

Follow me on twitter for future updates on LG-related things - twitter.com/@utoprime

Find this thread helpful? Hit the Thanks button!
Feeling extra generous? Click my name at the top of any post and hit donate or click here.


#TEAMCODEFIRE
 
Last edited:

El Presidente81

Senior Member
May 25, 2011
181
42
Samsung Galaxy S21
Awesome! If I'm already running Imperium 5.0 and just want the updated bootloader and modem (currently using the 20d variants), I'm guessing I can just backup and flash the modem and bootloader zips in TWRP? No need to completely return to stock/install the full zip?

Potentially silly question, but I'd rather ask than end up doing irreparable damage.
 

autoprime

Recognized Dev / Inactive Recognized Contributor
Jun 23, 2010
2,642
11,916
Awesome! If I'm already running Imperium 5.0 and just want the updated bootloader and modem (currently using the 20d variants), I'm guessing I can just backup and flash the modem and bootloader zips in TWRP? No need to completely return to stock/install the full zip?

correct.. there is no need to flash full unless u want stock(or stock rooted) lg. an updated modem/bootloader may or may not agree with the system/rom you're using though... sometimes things change where the "rom-base" must be updated to work with the new modem or bootloader. but worst case you just flash the old modem/bootloader back. If I had to guess though I think it should work for ya.
 

El Presidente81

Senior Member
May 25, 2011
181
42
Samsung Galaxy S21
correct.. there is no need to flash full unless u want stock(or stock rooted) lg. an updated modem/bootloader may or may not agree with the system/rom you're using though... sometimes things change where the "rom-base" must be updated to work with the new modem or bootloader. but worst case you just flash the old modem/bootloader back. If I had to guess though I think it should work for ya.

Great, thank you.
 

heino69

Senior Member
Feb 7, 2008
57
8
is it also valid to use newer versions of SU and TWRP as listed in the OT?
In detail I have
twrp-3.0.2-0-h815.img
and
UPDATE-SuperSU-v2.76-20160630161323.zip
I just want to verify, because in a german forum is an ongoing discussion if the 20g version can be rooted or not (or only till 20d)...

Thanks!
 

colemarc

Member
Sep 27, 2013
15
8
Well, about 5 hours to download H81520G-Flashable.COMPLETE.zip
I bet the download is going to stall...
It seems downloads.codefi.re is really slow, and no download manager supported.
 

fbr79

Member
Dec 11, 2007
46
10
After days of use, I can confirm that the version 20g greatly improves the stability and lifetime of the battery. also reduces the heat.
Using 20g kdz ITA on H815 no brand EU serial 601.
 

Hudt

New member
Nov 1, 2015
1
0
Is this kdz working fine in brand phone? If do not show a message about software incompatibilities
 
Last edited:

android404

Senior Member
Jan 19, 2013
1,425
774
Does xposed work on this version? There was a time when xposed didn't work on stock marshmallow rom without them being deodexed. Is that time over?

Edit: yes, those times are over.
 
Last edited:

FadeFx

Senior Member
Mar 22, 2010
8,838
3,034
Vienna
Hm. Baseband version is the same as in latest CM13...
Cm13 does not bring its own baseband, i dont remember what bootloader/modem i flashed last to my device as it was a while back, i think it was v20d, but i have same baseband as well, so i guess they dont do a lot of changes.

Gesendet von meinem LG-H815 mit Tapatalk
 
Cm13 does not bring its own baseband, i dont remember what bootloader/modem i flashed last to my device as it was a while back, i think it was v20d, but i have same baseband as well, so i guess they dont do a lot of changes.

Gesendet von meinem LG-H815 mit Tapatalk
There's a lot of trouble with mobile data on CM13 nightly. Toggle on/off air plane mode is necessary to get your mobile data. After I made an issue in JIRA one of the ideas was that it was an outdated modem. In the mean time I've installed the Omni Rom (same baseband as in this thread) and there are no problems with mobile data. So it's a CM13 problem. The Jira issue is assigned to a developer, but it's silent for quite a while.
 

FadeFx

Senior Member
Mar 22, 2010
8,838
3,034
Vienna
There's a lot of trouble with mobile data on CM13 nightly. Toggle on/off air plane mode is necessary to get your mobile data. After I made an issue in JIRA one of the ideas was that it was an outdated modem. In the mean time I've installed the Omni Rom (same baseband as in this thread) and there are no problems with mobile data. So it's a CM13 problem. The Jira issue is assigned to a developer, but it's silent for quite a while.

I run the same modem firmware and have to toggle airplane mode verry verry rarely, maybe once a month or so when turning off wifi. This may be some heißenbug hidden in the ril but in my case i dont care a lot obviously.

Which dev is assigmed to the issue you filed? Is it daniel hillebrand (codeworkx)?

Gesendet von meinem LG-H815 mit Tapatalk
 

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  • 29
    PPznrzD.jpg


    These are for the H815 variant only. Files are from software version 20G (Android 6.0 Marshmallow)... more specifically from the 20G Poland carrier-free version. Included below: TWRP-flashable stock rom, boot, modem and bootloader zips. KDZ and individual images are also included.

    20G NOTES...
    Improved stability for apps.
    Phone usability and functionality has been further improved.
    Android Security Patch = 2016-07-01

    *There is NO anti-rollback qfuse used in this update*

    Requirements:
    You must have TWRP 2.8.7+ installed to use these zip files. Thanks to Dees_Troy as always for that. And, of course, you must have your bootloader unlocked for TWRP to work. Currently only H815 EU and (some) SEA variants have official unlock through LG's unlock page HERE. Please do not ask if "model x" is supported... did you unlock via LG's official unlock tool? Yes? then you can use the zip. No?.. then you should skip the zips and just flash the KDZ instead.

    If you have a locked bootloader and want to upgrade... just use LGUP and flash the KDZ. Don't risk it with FlashFire.

    Install Directions:
    These directions should be used by everyone who wants a rooted 20G system.
    Don't want root? Then it's probably easiest to just flash the stock KDZ using LGUP HERE... or just skip the SuperSu steps.

    1. Download LG-H81520G-Flashable.COMPLETE.zip listed under the download section and place it on internal or external sdcard.
    2. Also download the latest SuperSu zip (2.67+) from HERE [Thanks to Chainfire for his auto-patching boot.img version!]
    3. (re)Boot into TWRP if not there already.
    4.* Backup current partitions: boot, system, data, efs (backing up anything is optional but suggested)
    5.* Up to you if you want to wipe data (TWRP > Wipe > Swipe slider) but not needed if coming from a stock rom.
    6. Install LG-H81520G-Flashable.COMPLETE.zip (Install > select zip > swipe to confirm/flash)
    7. Install SuperSu zip (Install > select zip > swipe to confirm/flash)
    8. After zips finish flashing you can reboot! (if TWRP asks if you want to install SU, HIT NO!!!)

    Please do not mirror my files!
    Downloads:
    LG-H81520G-Flashable.COMPLETE.zip
    LG-H81520G-Flashable.Modem.zip
    LG-H81520G-Flashable.Boot.zip
    LG-H81520G-Flashable.Bootloader.zip
    H81520g_00_0720.kdz

    Also, all stock images for 20G are available in the link below...
    CODEFIRE DIRECTORY

    MD5 Sums:
    Click button below to view MD5 for each file...
    MD5 (aboot.img) = 7c493525861c4266d530e738062fc315
    MD5 (boot.img) = 2875872b0a1d2805d9b2733288b9a8fb
    MD5 (cust.img) = d7af7d1b148e14b2aa2d66e16ffd54a4
    MD5 (factory.img) = 8d382e47c15ce8e7e40ab4d23a62681c
    MD5 (hyp.img) = d049d428439dcd6b5a86c31fcfe29308
    MD5 (laf.img) = 0b8aa1bc5ee9983b86bd9a8bccb337d2
    MD5 (modem.img) = 714083449d733ed086a88eb192d77994
    MD5 (persist.img) = 3d77aadd5ac3f6fb740c1af4798a8827
    MD5 (pmic.img) = 03482eec78f8b7d29146c8f384b3c437
    MD5 (raw_resources.img) = 9aa291963a8d7b8757d3da5a482a0bbe
    MD5 (rct.img) = 03e489583925004bab373b4fd71ab251
    MD5 (recovery.img) = d189812d83478840bc50a8d38bff02bf
    MD5 (rpm.img) = 60901753bf5929dcf59aa3d31b3bb036
    MD5 (sbl1.img) = f69b18f074eded758418f911d7664c6e
    MD5 (sdi.img) = ad50c1ef2f127e2f5ab1b87d550a036f
    MD5 (sec.img) = 6cd71a0e217d8aac823028c8c520808e
    MD5 (system.img) = 0aad230efe49fb2dabf4a31c62272a20
    MD5 (tz.img) = 9425a1d8a298b899ddd42d31a9e3b927

    MD5 (LG-H81520G-Flashable.Boot.zip) = 2bb3b8e280ab65eead6e4fee424ba747
    MD5 (LG-H81520G-Flashable.Bootloader.zip) = 801c446c09866efb341faacf71d96a80
    MD5 (LG-H81520G-Flashable.COMPLETE.zip) = b098f7031e95f52ccbc1c37039468bce
    MD5 (LG-H81520G-Flashable.Modem.zip) = 1e896ae6cb179c79c3ff90754da0925f


    Downgrade:
    To downgrade you can use TWRP to restore your backups... and then just flash the matching bootloader zip and modem zip from my previous threads... or just check the CODEFIRE DIRECTORY link for previous stock files.

    OR

    Use LGUP HERE to flash a previous KDZ version. KDZ will remove TWRP but easy enough to reinstall that.

    Unofficial Bootloader Unlock:
    Don't have official bootloader unlock? This guy claims to have a working method HERE...
    y u quote OP?

    Follow me on twitter for future updates on LG-related things - twitter.com/@utoprime

    Find this thread helpful? Hit the Thanks button!
    Feeling extra generous? Click my name at the top of any post and hit donate or click here.


    #TEAMCODEFIRE
    3
    Awesome! If I'm already running Imperium 5.0 and just want the updated bootloader and modem (currently using the 20d variants), I'm guessing I can just backup and flash the modem and bootloader zips in TWRP? No need to completely return to stock/install the full zip?

    correct.. there is no need to flash full unless u want stock(or stock rooted) lg. an updated modem/bootloader may or may not agree with the system/rom you're using though... sometimes things change where the "rom-base" must be updated to work with the new modem or bootloader. but worst case you just flash the old modem/bootloader back. If I had to guess though I think it should work for ya.
    3
    hello im on cm 13 but my camera auto focus does not work. I just need to know what I need to download from the first page and installation order so I do not mess up my phone.

    other than the current camera not focusing I do not have any other problems. If some one could just simplify which one i need and do not need and the order I would greatly appreciate it

    download LG-H81520G-Flashable.COMPLETE.zip to sdcard/download folder
    download version 2.67 of SuperSU from the link in the instructions to sdcard/download folder

    boot into TWRP (recovery)

    Use TWRP to wipe dalvick cache, as well as cache partition, and system partition and boot partition - do NOT wipe internal memory card or external memory card or recovery partition or data partition

    the immediately use install mode on TWRP to install LG-H81520G-Flashable.COMPLETE.zip

    then immediately use install mode on TWRP to install version 2.67 of SuperSU from download above

    reboot or power down phone, if TWRP asks if you want to install SuperSU or if you want to root phone, say no

    be patient, it takes a few minutes to sort everything out on first boot
    2
    What is the baseband version of the modem?
    Here
    1
    no mobile data on LTE :(

    H815 EU version.
    Mobile data properly working.