H420/H422 ROMs/Kernels/Recoveries and flash guide

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AbsolutelyProprietary

AbsolutelyProprietary

Senior Member
Dec 26, 2015
77
18
When compiling ROMs it is advised to use H324 source because it's not so broken and is universal for single/dual sim.
Kernel in development(fixes, etc.) by vitek999 @ 4PDA
https://github.com/vitek999/LGE_H324_Kernel_3.10.54

ROMs for now:
Lollipop (all roms don't have a working hotspot, maybe something minor):
djperya @4pda
AOSP
Exception OS
lol_max_lik @4pda
RessurectionRemix
Dr.Leo6565 @4pda
BlissPop 4.0.3
AICPv10
CM12.1, needs patch, quite buggy
Marshmallow UI
Platinum L
Remix UI
Custom Mod H422
DoogeeOS
VibeUI
ZenUI
Sony Z4 Mod
LivUI
X-Pop
NovaUI
Sensetion OS
Xplay OS
DJUMANJI 4.0
ColorOS

Igronafr229 @4pda
GreatAOSP ROM
CleanPOP 7.0.2
Sense7
ROM galaxy note 5
LP Prime

AisakaYui @4pda
Stock, TWRP flashable

Marshmallow (extremely buggy, headphones don't work at high volumes, cameras barely work):
Dr.Leo6565 @4pda
CrDroid
AICPV11
Igronafr229 @ 4pda
CM13



Kernels for now:
OptiSmartKernel
How to flash?
Best method is MTK FlashTool(download)

Grab uboot (This is for devices that have android 5.0 on them, should work for all models, tested on my H420 and works)

Grab TWRP 3.0

1. Unzip Flashtool.
2. Get recovery.img and uboot.img from recovery and uboot zips.
3. Open flash-tool.exe
4. Select scatter file. which is in the same folder as flash-tool.exe
xzakyj.png

5. Select your uboot and recovery.img click on the highlighted, it will open the file picker.
gqyaiu.png

6. Turn off your phone, plug in usb cable in the computer.
7. Click the download button in flashtool, plug the usb cable.
8. Wait for it to say ok.
DONE! :D
To enter recovery:
1. Turn phone off.
2. Hold power and volume down
3. When screen turns on, let go of the buttons and quickly hold them again.
4. A menu should appear about factory reset. Don't worry, it won't since the recovery is custom.
5. Select yes using volume keys, you'll need to do it two times.
6. Voila!

To root stock 6.0, download this and place files in flashtool like in the guide above, just pick the files and flash. (recovery.emmc.win = recovery; logo.emmc.win = logo etc.) afterwards you can go ahead and get a magisk zip and flash it (it needs to be modified to be able to patch our device, thanks to the people @ 4pda for being so helpful) here
CREDITS:
Vitek999 for kernel and being very helpful
djperya for flashtool and being very helpful
Everyone else for the ROMs, thanks guys!
 
Last edited:
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T

Thyago Vergueira

Member
Nov 22, 2015
7
1
Aosp 5.0.2 language

hello today I installed the ROM AOSP 5.0.2 on my lg H420 and noticed that not had my language ( Portuguese - Portugal ).
Already I installed an application to change my language but some aplications as the system continue in English.

someone can give me a hand? :D
 
polfrank

polfrank

Senior Member
Jul 5, 2012
718
335
Thyago Vergueira said:
hello today I installed the ROM AOSP 5.0.2 on my lg H420 and noticed that not had my language ( Portuguese - Portugal ).
Already I installed an application to change my language but some aplications as the system continue in English.

someone can give me a hand? :D
Click to expand...
Click to collapse

Which applications are these? I think that some applications can use only English language.
 
anatol55

anatol55

Senior Member
Sep 17, 2010
63
6
hello
my phone when i power off and when i put the cable dont do nothing just charge the phone...
can you helpe me?i have debbuging on and i try also off
 
&

+&o_o

Member
May 24, 2016
22
2
so if i update h420 to marshmallow i'll still be able to flash it with this method and gain root access?
 
&

+&o_o

Member
May 24, 2016
22
2
+&o_o said:
so if i update h420 to marshmallow i'll still be able to flash it with this method and gain root access?
Click to expand...
Click to collapse

forget my last question (kinda stupid). i have a problem if you guys could help me would be great. after flashing everything succesfully on the phone, wich is a spirit H420, under phone info now i get H422. it wouldn't be a problem if only i could flash the marshmallow kdz meant for the H420, but the installation process via LGUP doesn't even start. i've seen interesting stuff on 4pda, maybe i could find H420 lollipop stock there? to start from scratch before updating?
can anyone help me to revert the phone info?
 
P

paulalastor

Member
Jun 4, 2016
5
0
Lenovo Yoga Tab 2
+&o_o said:
forget my last question (kinda stupid). i have a problem if you guys could help me would be great. after flashing everything succesfully on the phone, wich is a spirit H420, under phone info now i get H422. it wouldn't be a problem if only i could flash the marshmallow kdz meant for the H420, but the installation process via LGUP doesn't even start. i've seen interesting stuff on 4pda, maybe i could find H420 lollipop stock there? to start from scratch before updating?
can anyone help me to revert the phone info?
Click to expand...
Click to collapse

In my case, I tried to upgrade my H420 from LP to MM via lg Mobile support tool or lg pc suite, but neither does the trick, constantly getting error. I have the MM .kdz file that is named as "H42020C_00_0530" but I tried to flash it through lg flashtool 2014, this one in vain too. What I should do to get Marshmallow? :confused: Thanks!
 
&

+&o_o

Member
May 24, 2016
22
2
paulalastor said:
In my case, I tried to upgrade my H420 from LP to MM via lg Mobile support tool or lg pc suite, but neither does the trick, constantly getting error. I have the MM .kdz file that is named as "H42020C_00_0530" but I tried to flash it through lg flashtool 2014, this one in vain too. What I should do to get Marshmallow? :confused: Thanks!
Click to expand...
Click to collapse

apparently marshmallow can't be flashed using flashtool 2014, in 4pda there's a link to this video. the video is in russian, but to put it simply: go to lg site of your country, go to support, find your device, download drivers and "LG support tool" wich is a new version of the 2014 flash tool, install both of them, insert the phone turned on because the software needs to recognise the model of the phone. it will find the upgrade, "the phone may reboot, do not disconnect etc.", sadly it will go through the process of downloading the update from the internet, so no use of our kdz.
i've managed to get untill "upgrade available" step using a mobile connection, but since the firewall of my university is filtered (and beside the weight of the file, my phone would reboot, so no tethering) i can't update now. as soon as i get to a private connection i'll try. let me know if you succeed. ;)
 
P

paulalastor

Member
Jun 4, 2016
5
0
Lenovo Yoga Tab 2
+&o_o said:
apparently marshmallow can't be flashed using flashtool 2014, in 4pda there's a link to this video. the video is in russian, but to put it simply: go to lg site of your country, go to support, find your device, download drivers and "LG support tool" wich is a new version of the 2014 flash tool, install both of them, insert the phone turned on because the software needs to recognise the model of the phone. it will find the upgrade, "the phone may reboot, do not disconnect etc.", sadly it will go through the process of downloading the update from the internet, so no use of our kdz.
i've managed to get untill "upgrade available" step using a mobile connection, but since the firewall of my university is filtered (and beside the weight of the file, my phone would reboot, so no tethering) i can't update now. as soon as i get to a private connection i'll try. let me know if you succeed. ;)
Click to expand...
Click to collapse
No way with lg support tool, it didn't pass over the download of the firmware, just give error. I resolved following (by google translate) this: http://4pda.ru/forum/index.php?showtopic=686154&st=2500#entry50284916, then the green colored link Прошивка android 6.0 с нуля через LG Flashtool, finally download the attachment named H422, about 1,1 Gb. But the guide assumes that you utilize a firmware with .dz extension, not .kdz...We need an extractor/converter, just get this http://forum.xda-developers.com/attachment.php?attachmentid=3136613&stc=1&d=1422375946.
Then, if you have, like me, downloaded the v20c MM stock firmware from a site like this: http://lg-phone-firmware.com/index.php?id_mod=190, just extract the two files needed to flash our H420: "LGUPc.dll" and "H42020c00.dz". I hope I've explained myself well or almost....:silly:
If needed, just ask. I'm pretty happy with my solution.:victory:

---------- Post added at 08:22 PM ---------- Previous post was at 08:19 PM ----------

I'm just searching/waiting now for root process...:cowboy:
 
&

+&o_o

Member
May 24, 2016
22
2
paulalastor said:
No way with lg support tool, it didn't pass over the download of the firmware, just give error. I resolved following (by google translate) this: http://4pda.ru/forum/index.php?showtopic=686154&st=2500#entry50284916, then the green colored link Прошивка android 6.0 с нуля через LG Flashtool, finally download the attachment named H422, about 1,1 Gb. But the guide assumes that you utilize a firmware with .dz extension, not .kdz...We need an extractor/converter, just get this http://forum.xda-developers.com/attachment.php?attachmentid=3136613&stc=1&d=1422375946.
Then, if you have, like me, downloaded the v20c MM stock firmware from a site like this: http://lg-phone-firmware.com/index.php?id_mod=190, just extract the two files needed to flash our H420: "LGUPc.dll" and "H42020c00.dz". I hope I've explained myself well or almost....:silly:
If needed, just ask. I'm pretty happy with my solution.:victory:

---------- Post added at 08:22 PM ---------- Previous post was at 08:19 PM ----------

I'm just searching/waiting now for root process...:cowboy:
Click to expand...
Click to collapse

DONE! thanks mate! owe you one ;)
a clarification to anyone who might come here: the 2013 version of lg flash tool, wich is required for this guide is contained in the H422.rar of the russian guide. it took me a couple of minutes to understand. also i didn't understand the part of the green link, but i managed to update anyway, so i think your advice is pretty clear.
i'm not sure if this kind of update was needed for my device (didn't try upgrade tool), but since it was succesfull for you, i already posses the .kdz and i'm on a limited connection, i decided to give it a try...and SUCCESS!
already like marshmallow, hope memory leak doesn't affect our devices, and can't wait for root!
 
D

Dr.Leo6565

New member
Jun 22, 2016
4
0
Some ROM`s
crDroid Android (6.0.1) - ttp://4pda.ru/forum/index.php?showtopic=686154&view=findpost&p=50064727
CyanogenMod 12.1 (5.1.1) - ttp://4pda.ru/forum/index.php?showtopic=686154&view=findpost&p=50327122
CyanogenMod 13 (6.0.1) - ttp://4pda.ru/forum/index.php?showtopic=686154&view=findpost&p=49486910
Blisspop (5.1.1) - ttp://4pda.ru/forum/index.php?showtopic=686154&view=findpost&p=50521514
AICP v10 (5.1.1) - ttp://4pda.ru/forum/index.php?showtopic=686154&view=findpost&p=50521514
Ressurection Remix (5.1.1) - ttp://4pda.ru/forum/index.php?s=&showtopic=686154&view=findpost&p=50521997
 
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  • 4
    AbsolutelyProprietary
    AbsolutelyProprietary
    When compiling ROMs it is advised to use H324 source because it's not so broken and is universal for single/dual sim.
    Kernel in development(fixes, etc.) by vitek999 @ 4PDA
    https://github.com/vitek999/LGE_H324_Kernel_3.10.54

    ROMs for now:
    Lollipop (all roms don't have a working hotspot, maybe something minor):
    djperya @4pda
    AOSP
    Exception OS
    lol_max_lik @4pda
    RessurectionRemix
    Dr.Leo6565 @4pda
    BlissPop 4.0.3
    AICPv10
    CM12.1, needs patch, quite buggy
    Marshmallow UI
    Platinum L
    Remix UI
    Custom Mod H422
    DoogeeOS
    VibeUI
    ZenUI
    Sony Z4 Mod
    LivUI
    X-Pop
    NovaUI
    Sensetion OS
    Xplay OS
    DJUMANJI 4.0
    ColorOS

    Igronafr229 @4pda
    GreatAOSP ROM
    CleanPOP 7.0.2
    Sense7
    ROM galaxy note 5
    LP Prime

    AisakaYui @4pda
    Stock, TWRP flashable

    Marshmallow (extremely buggy, headphones don't work at high volumes, cameras barely work):
    Dr.Leo6565 @4pda
    CrDroid
    AICPV11
    Igronafr229 @ 4pda
    CM13



    Kernels for now:
    OptiSmartKernel
    How to flash?
    Best method is MTK FlashTool(download)

    Grab uboot (This is for devices that have android 5.0 on them, should work for all models, tested on my H420 and works)

    Grab TWRP 3.0

    1. Unzip Flashtool.
    2. Get recovery.img and uboot.img from recovery and uboot zips.
    3. Open flash-tool.exe
    4. Select scatter file. which is in the same folder as flash-tool.exe
    xzakyj.png

    5. Select your uboot and recovery.img click on the highlighted, it will open the file picker.
    gqyaiu.png

    6. Turn off your phone, plug in usb cable in the computer.
    7. Click the download button in flashtool, plug the usb cable.
    8. Wait for it to say ok.
    DONE! :D
    To enter recovery:
    1. Turn phone off.
    2. Hold power and volume down
    3. When screen turns on, let go of the buttons and quickly hold them again.
    4. A menu should appear about factory reset. Don't worry, it won't since the recovery is custom.
    5. Select yes using volume keys, you'll need to do it two times.
    6. Voila!

    To root stock 6.0, download this and place files in flashtool like in the guide above, just pick the files and flash. (recovery.emmc.win = recovery; logo.emmc.win = logo etc.) afterwards you can go ahead and get a magisk zip and flash it (it needs to be modified to be able to patch our device, thanks to the people @ 4pda for being so helpful) here
    CREDITS:
    Vitek999 for kernel and being very helpful
    djperya for flashtool and being very helpful
    Everyone else for the ROMs, thanks guys!
    View
    1
    AbsolutelyProprietary
    AbsolutelyProprietary
    mayankjet said:
    Guys can i unlock bootloader of my lg h442
    Click to expand...
    Click to collapse
    yes just flash it as told to. There's even CM13 (android 6.0.1) just look up the 4pda thread.
    View
    1
    &
    +&o_o
    I can confirm that the process explained on 4pda is successful. All the credits to this amazing Russian guys.
    View
    1
    &
    +&o_o
    quick guide for 6.0 root. steps translated from 4pda

    OK, here we are. first things first: the following guide provided by 4pda will install an ugly yellowish lg boot logo on your device, i'm sure it can be fixed later, but for me it's not a big deal. just to inform.
    as always, none of us is responsibile for the potential risk you are taking following this guide, and i suggest you do a phone backup, as always, bla bla bla...
    you'll need:
    -SP_Flash_Tool_by_djperya (not linked in the mentioned 4pda guide but you can find it on the first page of this thread)
    -this .rar archive
    -supersu.zip
    process:
    -extract the archive: it contains boot.img, logo.bin, recovery.img and uboot.img
    -copy the supersu.zip file in the internal memory of your phone.
    -open the flash tool: select the scatter.txt file already provided in the same folder of the tool
    -then basically the steps are the same as the first guide of this thread, you'll need to select the provided boot.img as boot, logo.bin, recovery.img and oboot.img from the downloaded 6.0 folder.
    -turn off your device
    -plug it in your pc
    -press download in the tool
    -it should appear a tick and the phone should reboot
    -when the phone reboots, press and hold power+volumedown key, and as as soon as the lg logo appears, quickly release and press again the same buttons
    -it should appear the factory data reset screen, don't worry and navigate with volume keys to confirm two times 'yes' with the power button
    -the phone will reboot you in your new twrp recovery
    -flash the supersu.zip
    -reboot, go to the play store and install supersu
    et voilà.
    View
    1
    Fobos531
    Fobos531
    Orareidi said:
    Ok, clear enough, thank you!
    Is there a step by step guide on how to install Android 5 please?
    (I will save all info I have using 'backup' on my SD card... I will install Android 5 -need guidance- and then 'restore' all my saved info from my SD card... so the phone will be exactly the same as before, with all saved info as before, but with Android 5, which I will then be able to root using a software like Kingoroot, etc)

    Many thanks in advance guys!
    Click to expand...
    Click to collapse

    I hope the procedure is the same since you have a MediaTek chip. Someone correct me if I'm wrong.

    1) Backup your phone, I recommend using this software: SyncDroid
    2) Install SyncDroid and follow the instructions to backup your phone
    3) Go here: http://lg-kdz-firmware.com/lg-h420-firmware/190.html
    4) Find your region and correct model number and download the correct firmware (LP firmwares are designated with v10x, where x is a letter of the alphabet). For example, if you're from the Hungary region and have a H420, you would download the HUN/HUNGARY V10E kdz.
    5) When your KDZ is downloaded, download LG Flash Tool.
    6) Follow the instructions to flash the kdz from here: https://forum.xda-developers.com/showthread.php?t=2797190 (to enter Download Mode, turn off your phone, take an USB cable, plug the PC end in the PC, and plug the phone end in the phone while simultaneously holding Volume Up key until Download mode appears).
    7) When your KDZ is flashed, set up the phone.
    8) Use SyncDroid to restore your files (follow the instructions on the screen).
    View

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