[STOCK ROM][ZIP][ROOTED][OREO] LG V20 20H (H990N/DS/SS) Security Patch - 1 Feb 2019 - LG V20 ROMs, Kernels, Recoveries, & Other Developm

I've created a flashable ROM zip of the latest H990N KDZ. Everything is working correctly on my H990 Single SIM.
Download:
https://drive.google.com/open?id=12oNtnLSypxAws5YzDbuCkBYplDKQMjcx
MD5: 3780ac8f9c1c70d1270acb0f95bf3dd4
Download (without MODEM and CUST partitions):
This may prevent any IMEI and modem issues.
Recommended for Dual SIM devices.
Must already be on Oreo for those MODEM and CUST partitions to remain intact.
Thanks to @mikekote666
https://drive.google.com/open?id=134Qbbcpjuri8hwBpflrjWw5OnoTlennz
MD5: 3b1360c3f5ecafcc3af6dfbdb7f87b5c
Security Patch:
1 February 2019
ARB:
0
Dual SIM:
As reported by @hahmad78, before flashing this, backup your current OREO ROM's EFS and Firmware partitions,
then restore those partitions after flashing the ROM and dual SIM will work correctly on the H990DS.
Restoring these partitions from a Nougat ROM will most likely cause problems!
Single SIM:
I have this running on a single SIM H990 without issue.
If you see second SIM functions in the ROM and want to disable it, use this SIM toggler
Installation process:
• Flash latest TWRP
• BACKUP everything
• Clean wipe (system, data, caches)
• Flash ROM
• Flash Magisk
• Flash MK2000 Oreo kernel
• Reboot
• Enjoy

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jl10101 said:
I've created an UNTESTED flashable zip of this latest KDZ:
https://drive.google.com/file/d/1gX8K4Mh8PYU_4jRjIWyh_f5ZFSOFNWrK/view?usp=sharing
From my experience, dual SIM ROMs can be flashed on single SIM H990 too, and using this SIM toggler:
(https://forum.xda-developers.com/android/apps-games/app-multisim-toggle-t2830647
The above will disable the second SIM functions throughout the ROM.
The process I would suggest is:
• BACKUP everything
• Clean wipe
• Flash ROM
• Flash Magisk
• Flash MK2000 Oreo kernel
• Reboot
I'll test this later today, but thought I would get it out there.
Click to expand...
Click to collapse
dear i have checked this 20h rom by flashing kdz on mu h990ds. Second sim issue same as v20f. second sim do not detect signals.
so before flashing beware of it.

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hahmad78 said:
dear i have checked this 20h rom by flashing kdz on mu h990ds. Second sim issue same as v20f. second sim do not detect signals.
so before flashing beware of it.
Click to expand...
Click to collapse
It might be that you flashed a KDZ (with all partitions). Although this is just a guess. I have this running on my single SIM H990 and calls, wifi, data all work.

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Can you please check what ARB setting it's on? 0 or 1? Thanks

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LeTerrible said:
Can you please check what ARB setting it's on? 0 or 1? Thanks
Click to expand...
Click to collapse
It's on 0
Sent from my LG-H990 using Tapatalk

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Is rhis rom exclusively for h990n variant? Or can I flash this on my h990ds variant without expecting any issue?

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Can flash on VS995?

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indongista said:
Is rhis rom exclusively for h990n variant? Or can I flash this on my h990ds variant without expecting any issue?
Click to expand...
Click to collapse
I don't see why it wouldn't work on the H990DS variant. It's working fine on my single SIM H990 variant. Just make sure to do an extensive backup.
Sent from my LG-H990 using Tapatalk

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yplim2300 said:
Can flash on VS995?
Click to expand...
Click to collapse
No I wouldn't, that's too far from the H990 family.
Sent from my LG-H990 using Tapatalk

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indongista said:
Is rhis rom exclusively for h990n variant? Or can I flash this on my h990ds variant without expecting any issue?
Click to expand...
Click to collapse
i am already running v20h h990n rom on my h990ds ame variant. @ND sim issue is present in v20f and v20h roms for h990n variant. i am using h990n roms from last year on my h990ds variant for experiment of VOLTE.
the solution for 2nd sim issue can be resolved by backup and restore efs, firmware, partitions in twrp from working 2nd sim rom to this one.
i have rectified it and so i am using 2nd sim on h990ds with v20f for h990n.
---------- Post added at 11:06 AM ---------- Previous post was at 11:05 AM ----------
jl10101 said:
It might be that you flashed a KDZ (with all partitions). Although this is just a guess. I have this running on my single SIM H990 and calls, wifi, data all work.
Click to expand...
Click to collapse
dear you are using single sim , thats why can not notice 2nd sim signal issue.
single sim also worked fine for me. now i have got 2nd sim in working too.

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dear, volte works on your h990 single sim? do you get HD icon display during call?

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hahmad78 said:
dear, volte works on your h990 single sim? do you get HD icon display during call?
Click to expand...
Click to collapse
I just checked and no, it doesn't display HD when making a call. But I believe this is down to my carrier not supporting the feature.
Sent from my LG-H990 using Tapatalk

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jl10101 said:
I just checked and no, it doesn't display HD when making a call. But I believe this is down to my carrier not supporting the feature.
Sent from my LG-H990 using Tapatalk
Click to expand...
Click to collapse
can you please upload the nt code ? i have attached nt code for h990ds . i have tried many codes, and combinations, still no gain.
as far i have checked roms for all variants, almost same except some data missing in ipsec folder in root/data for carrier specific and modem sw mbn files.
i use lg up patched for kdz flashing, in that way, keep roots and no hassle, very simple and easy, and you can select which ever partition to flash. no data loss for me uptill now .

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hahmad78 said:
can you please upload the nt code ? i have attached nt code for h990ds . i have tried many codes, and combinations, still no gain.
as far i have checked roms for all variants, almost same except some data missing in ipsec folder in root/data for carrier specific and modem sw mbn files.
i use lg up patched for kdz flashing, in that way, keep roots and no hassle, very simple and easy, and you can select which ever partition to flash. no data loss for me uptill now .
Click to expand...
Click to collapse
I'm not sure how to get this? Is there a simple guide available?

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jl10101 said:
I'm not sure how to get this? Is there a simple guide available?
Click to expand...
Click to collapse
*#546368#*990# by using this code, you will enter in hidden menu,
---------- Post added at 10:53 PM ---------- Previous post was at 10:46 PM ----------
jl10101 said:
I'm not sure how to get this? Is there a simple guide available?
Click to expand...
Click to collapse
Sorry, my bad, bu using following code *#546368#*990# , you will get hidden menu, there , go to SVC MENU, and than VERSION INFO, you will see nt code there,
2nd method, by using adb shell, type following command, it make a copy of misc partition on your sd card, open it in hex editor, there you will find all information related to mobile, imei, mac address, nt code, software version etc.
dd if=/dev/block/platform/soc/624000.ufshc/by-name/misc of=/sdcard/misc.bin
By following command , you can flash this or by changing name(misc.bin) any partition, put the file on sd card , than run following command. It could be run through terminal emulator too or from pc, through adb shell, than su and than following command
dd if=/sdcard/misc.bin of=/dev/block/platform/soc/624000.ufshc/by-name/misc

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hahmad78 said:
Sorry, my bad, bu using following code *#546368#*990# , you will get hidden menu, there , go to SVC MENU, and than VERSION INFO, you will see nt code there,
Click to expand...
Click to collapse
Thanks, here it is:
"1","FFF,FFF,FFFFFFFF,FFFFFFFF,72"
Hope that helps in some way?

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jl10101 said:
Thanks, here it is:
"1","FFF,FFF,FFFFFFFF,FFFFFFFF,72"
Hope that helps in some way?
Click to expand...
Click to collapse
i would try it to check volte. Thanks a lot.:good:
dear you are active on bbs forum. can you please try to get h918 t mobile, nt code too.?

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hahmad78 said:
dear i have checked this 20h rom by flashing kdz on mu h990ds. Second sim issue same as v20f. second sim do not detect signals.
so before flashing beware of it.
Click to expand...
Click to collapse
You got it working now?

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jl10101 said:
I've created a flashable ROM zip of the latest H990N KDZ. Everything is working correctly on my H990 Single SIM.
Download:
https://drive.google.com/open?id=12oNtnLSypxAws5YzDbuCkBYplDKQMjcx
Security Patch:
1 February 2019
ARB:
0
Dual SIM:
As reported by @hahmad78, before flashing this, backup your current ROM's EFS and Firmware partitions, then restore those partitions after flashing the ROM and dual SIM will work correctly on the H990DS
Single SIM:
I have this running on a single SIM H990 without issue.
If you see second SIM functions in the ROM and want to disable it, use this SIM toggler
Installation process:
• BACKUP everything
• Clean wipe (system, data, caches)
• Flash ROM
• Flash Magisk
• Flash MK2000 Oreo kernel
• Reboot
• Enjoy
Click to expand...
Click to collapse
I suggest replacing the raw resources with the one that hide the boot warning screen

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Has anyone seen this page?
https://forum.xda-developers.com/pixel-2/how-to/guide-enable-volte-unsupported-carriers-t3892659
I can't get the QPSTdrivers to install as I am not getting anything in PDC. Can anyone please look into it for getting VoLTE running on H990DS?
Cheers