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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 20D 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-H81520D-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-H81520D-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-H81520D-Flashable.COMPLETE.zip

100% stock untouched system, boot, modem and bootloader.



LG-H81520D-Flashable.Modem.zip

This is a flashable stock 20D modem.



LG-H81520D-Flashable.Boot.zip

This is a flashable stock 20D boot.img. Boot.img contains kernel + dtb + ramdisk.



LG-H81520D-Flashable.Bootloader.zip

This is a flashable stock 20D bootloader. It contains aboot, factory, hyp, laf, pmic, raw_resources, rpm, sbl1, sdi, sec and tz.





Also, KDZ + all stock images for 20D are available in the link below...

CODEFIRE DIRECTORY



MD5 Sums:

Click button below to view MD5 for each file...



MD5 (aboot.img) = 144773f3b0c9d85ff8f3e980f026ea30

MD5 (boot.img) = 9923644e65778514a8b71000e75c62c9

MD5 (cust_1.img) = 232313a065e810dcc304247058f1aa00

MD5 (cust_2.img) = e831a93c9b1ebb7248601588c0a008c1

MD5 (factory.img) = 1357ec8ffa65381f36defdee21906242

MD5 (H81520D_00_0115.kdz) = ad276b86b822c758381481bd4de6bb81

MD5 (hyp.img) = a017fc52b625e73cd0f2fa4b627eefd6

MD5 (laf.img) = 14c1278c5f98d7bebe8d89fe2b8508bb

MD5 (LG-H81520D-Flashable.Boot.zip) = 22fa3f7560a1dfad1b0de141ce5e374f

MD5 (LG-H81520D-Flashable.Bootloader.zip) = cbdda13669c6f4eb1f74d36d1af25f3e

MD5 (LG-H81520D-Flashable.COMPLETE.zip) = 285efa3ca0be923d2deeb64eea27bb1a

MD5 (LG-H81520D-Flashable.Modem.zip) = d3bf732e5e622ea7d3c053761ee2867d

MD5 (modem.img) = 67094c0826b506619652e3468b11f808

MD5 (persist.img) = b55a198ac595d593513ee3978618a1e1

MD5 (pmic.img) = 083aaf704163f34cb7399716ba06a441

MD5 (raw_resources.img) = 9aa291963a8d7b8757d3da5a482a0bbe

MD5 (recovery.img) = f8cc22686a37692cf4e80908f6d93d1a

MD5 (rpm.img) = fca5ac483ebddce69af2cf3781ba8fec

MD5 (sbl1.img) = 3eae39d361dcbf8e1d3bbfb15270fbb7

MD5 (sdi.img) = 8e2cb851c1ecd7154b717b2f5b2579b7

MD5 (sec.img) = 6cd71a0e217d8aac823028c8c520808e

MD5 (tz.img) = 74675d781210dc884f3a4bed21bda83c

Downgrade:

Unofficial Bootloader Unlock:

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.ORUse LGUP HERE to flash a previous KDZ version. KDZ will remove TWRP but easy enough to reinstall that.Don't have official bootloader unlock? This guy claims to have a working method HERE ...