Wanting to root H990DS -- Which firmware should I use? - LG V20 Questions & Answers

Hey all,
So I'm shortly about to receive my V20 H990DS. I've read that in order for DirtyCow to work, I need to have a firmware with a security patch prior to January 2017. I'm in Australia if it matters, but I'm wanting to know which firmware I should use, if there's any difference between them at all apart from versions. Once I'm rooted and Unlocked with DirtyCow on it, I understand I can't update the firmware or anything (unless I'm wrong?), so I'm wanting preferably the most stable firmware if possible as this will be my daily driver, and I will be running it stock rooted.
Cheers

Related

What Are The Current H910 Root Options & Rootable Firmwares

Hi I Just recently got the H910 ATT model. Its currently on the September 1, 2016 security patch with 10c software. I was wondering if the Dirty Santa method will work on this firmware and what is the most recent software I can be on while still being able to root and install a ROM. Is there anyway to update to the newest rootable firmware without getting 10M? Or am I best staying on 10C and rooting from here?
My second question is which rom would be best for the H910? NATF or WETA?
I am looking for a more stable rom with no static boot.
Thanks.
Stay 10C or youll be patched. Dirtysanta will work. Roms:try both and stay with what you like
Thank you for asking this spncr_wu

Correct KDZ File for Root Help - H990DS

Hi all,
I recently purchased a brand new, factory sealed, LG-H990DS from Amazon.com in the US. From all the documents that came with it, the unit is from LGE Singapore. However, my firmware is v10f_SEA_XX rather than an SG version (I understand Singapore versions should be _SG, correct?).
Now, I want to downgrade to an earlier security patch (Currently June 1st, 2017), so that I can root the phone and hopefully enable VoLTE (I have it in Quick Settings but it's grayed out and I can't toggle it )
I'm confused about which .kdz to use... there's a bunch of SG and TWN ones, but won't that brick my phone? I already bricked my first H918 (T-Mobile) one by somehow flashing the wrong T-Mo .kdz (in hind-sight I should have checked the md5 sum). I know H990DS is a lot harder to root than TMO so I'm kinda scared. I've rooted/flashed on many, many phones, but the H990DS seems to be the most tricky.
Thanks for your help in advance!
I've got H990DS too and managed to root it.
I am using this guide https://forum.xda-developers.com/v20/development/dirtysanta-h990-t3624296/.
But I've got November 2017 security patch, so I got to downgrade to earlier firmware using this guide https://forum.xda-developers.com/v20/how-to/restore-v20-to-100-stock-bricked-devices-t3524903. I use oldest firmware available, that is v10b https://lg-firmwares.com/download-file/?fileId=4345. and currently stuck here with 10b. currently figuring out how to update to the latest firmware using KdzFlasher
Hi Boxy52, I have the same phone, the KDZ file you need is (https://lg-firmwares.com/download-file/?fileId=5196) version "V10c", with this you can begin the tutorial writed of the described above by the damadikaz, after you can upgrade the firmware up to version V10h on tutorial https://forum.xda-developers.com/v20/development/tool-kdz-writer-t3649818...
Hey damadikaz,
So to confirm - it doesn't matter which region I flash - I won't be bricked, correct? My only concern was if I flashed the wrong region. But if all H990DS firmwares work with eachother, I shouldn't have an issue other than bloat?
Thanks!
boxy52
Hey pkrename,
You have the SEA firmware as well right, so I've got a question - do you have any bloat ware? Mine has none! My phone shipped with V10f_SEA_XX and I have ZERO bloatware its amazing because I've heard everyone else with SEA firmwares was stuck with a lot of bloatware. Do you think I've got some special version of the ROM? Just want to make sure that I'm indeed on the same ROM as you.
Thanks!
boxy52
Hi Box, Sorry I'm late, about the firmware bloatwares, I have no problem with them ... at least in my firmware I do not have many bloatwares other than google.
For anyone wondering:
First try the TWN series of Firmware. My phone came with TWN-10C (December 1st Security Patch) so I was able to root straight out of the box. I still use the TWN firmware today (except the latest version as displayed in my signature) as this is the cleanest of Firmwares I've found so far. All I had to do was use Root Uninstaller to uninstall a few Facebook/Instagram/other apps that came with the firmware and that was it.
Secondly, the SEA/SG (South-East Asia and Singapore) firmwares are the same, as seen here
Hope this helped

[XT1642] no OTA after downgrade from N soak test

Hey guys,
I've been on nougat soak test since it's release back in 2016 and decided to downgrade to Marshmallow today. I am now on MPJ24.139-48 (6.0.1) and when I search for updates my device tells me that it's already up to date.
Is it normal? How can I get the lastest official firmware?
Sorry if my english isn't the best, it isn't my native language.
Thanks in advance.
Hmm, that build should be updating to MPJ24.139-63/64 and then updating to Nougat.
However, as you've downgraded, it's not necessarily a good idea to use OTA updates. To be safe, you could look into flashing the NPJS25.93-14-13 v7.0 Nougat stock Dec 2017 stock firmware here: https://forum.xda-developers.com/moto-g4-plus/how-to/stock-rom-npjs25-93-14-4-march-1-t3608138
What software channel is your device? This firmware has been deployed to Indian, Brazil, EU and UK devices as far as I've seen, and if you're in those territories you should expect to receive OTA updates. Whilst you may be okay with flashing this firmware on other countries' device variants, you may not receive OTA updates.
On a retGB (UK) XT1642 device, this NPJS25.93-14-13 firmware is running well though.
echo92 said:
Hmm, that build should be updating to MPJ24.139-63/64 and then updating to Nougat.
However, as you've downgraded, it's not necessarily a good idea to use OTA updates. To be safe, you could look into flashing the NPJS25.93-14-13 v7.0 Nougat stock Dec 2017 stock firmware here: https://forum.xda-developers.com/moto-g4-plus/how-to/stock-rom-npjs25-93-14-4-march-1-t3608138
What software channel is your device? This firmware has been deployed to Indian, Brazil, EU and UK devices as far as I've seen, and if you're in those territories you should expect to receive OTA updates. Whilst you may be okay with flashing this firmware on other countries' device variants, you may not receive OTA updates.
On a retGB (UK) XT1642 device, this NPJS25.93-14-13 firmware is running well though.
Click to expand...
Click to collapse
Hi and thank you for your answer. I am from France, I don't really mind not having OTA's if I can flash updates. It is juste that I have been away from xda for more than a year so I'm a bit lost with all the firmwares around. OTA just feels easier.
Will try this firmware tho.

How to roll back to the earliest version of ROM? (LS997)

Hi,
I got my LG V20 (LS997) today, and I decided to update it. My phone took couple of updates till it reaches the last one. I decided to root my phone then, but I was failed to do so. I got to know that I have to roll back to the ROM which has a security patch before Dec 2016. There are a number of guiding threads here, but the phone is my phone is not rooted, so how am I going to flash those files? Also, LGUP doesn't detect my phone at all. I don't know why.
I think the latest version has anti rollback =1
So you can't rollback.
And there is no root for the latest version of sprint variant of lg v20 as I know.
Lg patch dll
There is a patch lgup dll file that can flash go to the main forum and you will find it
anees02 said:
I think the latest version has anti rollback =1
So you can't rollback.
And there is no root for the latest version of sprint variant of lg v20 as I know.
Click to expand...
Click to collapse
Ahh, so normally you would actually be able to do a rollback, so this is just one more of these Satanic things to make it hard for the user to do whatever he wants with HIS device. I was so sad when I updated to the latest version as it seemed the mobile overall became slower. So had I had the option I would have rollback in an instant.

H910 not updating OTG/PC Suite

Hi There !
I have recently bought LG V20 H910. It is on android 7.0 and its further details are as below:
Android security patch level: December 1, 2016
Build number: NRD90M
Software version: H91010i
Whenever i try to update the android, it says that there is no further update available. I tried both OTG as well as LG PC suite methods. When i tried searching for security patches on LG site, i got this info that latest patch is from March 2018.
I wanted to know how can i update my phone and why it says that there is no update available, when there is update available as per this LG site
My device is not rooted. I tried to root it earlier to install lineage OS (by following the guide). I am not a tech savvy kind of person at all.
Please help me with this.
Regards
Awais Javaid.
awaisagha said:
Hi There !
I have recently bought LG V20 H910. It is on android 7.0 and its further details are as below:
Android security patch level: December 1, 2016
Build number: NRD90M
Software version: H91010i
Whenever i try to update the android, it says that there is no further update available. I tried both OTG as well as LG PC suite methods. When i tried searching for security patches on LG site, i got this info that latest patch is from March 2018.
I wanted to know how can i update my phone and why it says that there is no update available, when there is update available as per this LG site
My device is not rooted. I tried to root it earlier to install lineage OS (by following the guide). I am not a tech savvy kind of person at all.
Please help me with this.
Regards
Awais Javaid.
Click to expand...
Click to collapse
Sounds like your previous attempt at root screwed up automatic Ota from your carrier. Your going to need to root and twrp to flash an updated stock rom
Sent from my LG-H910 using XDA Labs
awaisagha said:
Hi There !
I have recently bought LG V20 H910. It is on android 7.0 and its further details are as below:
Android security patch level: December 1, 2016
Build number: NRD90M
Software version: H91010i
Whenever i try to update the android, it says that there is no further update available. I tried both OTG as well as LG PC suite methods. When i tried searching for security patches on LG site, i got this info that latest patch is from March 2018.
I wanted to know how can i update my phone and why it says that there is no update available, when there is update available as per this LG site
My device is not rooted. I tried to root it earlier to install lineage OS (by following the guide). I am not a tech savvy kind of person at all.
Please help me with this.
Regards
Awais Javaid.
Click to expand...
Click to collapse
Looks like you've the att model, are you actually on ATT? I've seen reports that if the att model doesnt have an ATT sim it wont find updates.
cnjax said:
Sounds like your previous attempt at root screwed up automatic Ota from your carrier. Your going to need to root and twrp to flash an updated stock rom
Sent from my LG-H910 using XDA Labs
Click to expand...
Click to collapse
Well it seems so. I tried rooting it with kingoroot and it failed. Then i searched online for rooting solution and came to know that v20 cannot be rooted by these software because the bootloader is locked.. It needs another method (told in forums). Well i didn't try them.
I need some further help in this regards. I have few questions. I hope you can answer them.
1. If i unlock the bootloader and install twrp and then install the stock rom, CAN I INSTALL ANY stock rom, for example, stock rom of international model instead of at&t version?
2. I am using h910 but not with at&t sim. I am on other network. Will installing with official rom (other than at&t version), keep the gsm working>?
awaisagha said:
Well it seems so. I tried rooting it with kingoroot and it failed. Then i searched online for rooting solution and came to know that v20 cannot be rooted by these software because the bootloader is locked.. It needs another method (told in forums). Well i didn't try them.
I need some further help in this regards. I have few questions. I hope you can answer them.
1. If i unlock the bootloader and install twrp and then install the stock rom, CAN I INSTALL ANY stock rom, for example, stock rom of international model instead of at&t version?
2. I am using h910 but not with at&t sim. I am on other network. Will installing with official rom (other than at&t version), keep the gsm working>?
Click to expand...
Click to collapse
You could possibly flash the US996 which is the unlocked version, as far as updates you'll have to check and see if there's updates for it from LG, but the big concern would be determining what bands are available with that variant to see if they are compatible with your carrier, you can also check this forum and see if there's updated 996 roms that you could flash to get the latest security patches. But as the previous poster stated as long as you are on 910 rom and using another carrier's sim you'll never get an update from AT&T
Sent from my LG-H910 using XDA Labs

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