Need Help With Choosing V20 Variant With The Most Support

C D

Senior Member
Jul 19, 2016
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TN
I will checkout AKT right away.
If I remember correctly, there is an apk version of AKT 1.6 hidden somewhere in one of those AKT threads from the OnePlus3 section. That'll make installation easier if you can find it.
Another similar alternative is the Magisk module LKT. I have used both AKT and LKT and found no noticeable difference in battery life between them, but that may vary based on your usage.

Also, if you are currently using an LG OEM battery, then you might want to consider looking at getting one of those 4100/4200 mAh Lithium Polymer batteries made by various brands such as Perfine, MaxxxJuice, Shenmz, and Taeozi. They are the same size as the OEM battery but actually have a higher capacity. Some of them have been mentioned in this battery search thread.
 
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princedede

Senior Member
Jan 5, 2014
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Okay. Glad u av been able to root. So after u download android Alpha 8.0 rom. I believe u will have a smooth sail. But for a safe installation:
1. Get the latest TWRP and flash the recovery from Twrp.
2. Format data. System, data, cache. Or go through Alpha rom 8.0 thread and follow the steps. U will be fine after flashing. Everything works here with me. I'm also on MTN Nigeria.... Battery life too is okay. Though i have ordered one of those 4100 mah battery.
 
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MEMO#22

Senior Member
Nov 28, 2016
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Its not really LG, blame US carriers and their love of sodomizing their customers. AT&T and Sprint explicitly chose not to release stock ROM, and Sprint/T-Mobile increment ARB. Manufacturer hands the base device to the carrier, and the carrier decide what security features they want to enable. It could be worse, American Samsung flagship are practically impenetrable, the S7 was only rooted because an engineering firmware was leaked, but it had serious performance issues and minor side effects. The Verizon Pixel is locked tight as well, as with Verizon phone in general historically.

But generally, the only model to avoid is LS997 because only a tiny number of them floating around are still rootable, and even rooted you're restricted as hell because you're stuck using the ancient ZV6 modem. H918 has a slightly more involved rooting process, but once you're done its set and forget. Anti Rollback is only ever an issue if you need to go back to a pre-ARB version to root, and with the H918 that's not the case.

S tier: F800/Korean. First in line for OTA, last to get support dropped.
A tier: US996 (free market). Official bootloader unlock
B tier: US996 (carrier), VS995, H910, H915. Fully flashable to US996 bloat-free firmware, can take US996 modem firmware without losing signal. Some people reported signal issues with crossflashing on the H910/H915, but it easily could just be user errors. The H915 has official KDZ, and the H910 can just flash a custom made return to stock package even if it doesn't have an official KDZ.
C tier: H918. Roundabout methods required compared to DirtySanta compatible models.
D tier: H910PR/etc.... Unpopular models from "literally who?" countries, dual SIM models. It might work, or it might not. Dual SIM model seems to have issues due to the hardware difference, and there's no dev with the actual phone.
E tier: Rootable LS997.
F tier: Unrootable LS997

As for the FM Radio thing, its enabled/disabled kernel side. A lot of people reported losing FM Radio after rooting and installing a custom kernel in the early days threads because its built from the US996 source tree. Its well known at this point that hardware/mobo wise all single SIM V20 are equal (refurbished American V20 popping up with F800 coded mobo), just a difference in software and eFuse pop. Hence some model can take cross flashed modem well, and some can't. It might actually be just software, because the V30 had an early Nougat firmware for the US998 that could be flashed onto any carrier device and modem would work fine. You can then upgrade from this version to any later firmware, and modem will still continue to work, even if straight flashing newer firmware doesn't.
Yeah H910PR is a pain, it's my current phone that i bought online with a Claro firmware

You can still unlock , root , and install custom roms on this device with H910, H915, US996 methiods, one major issue that i'm facing is just i can't install any custom kernels.
i dunno maybe there's just something wrong with how i root my device, i haven't looked much further into it because i fear i might break my device, H910 method worked tho
 

mickeyasamoah

Senior Member
Jan 11, 2013
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Accra
Okay. Glad u av been able to root. So after u download android Alpha 8.0 rom. I believe u will have a smooth sail. But for a safe installation:
1. Get the latest TWRP and flash the recovery from Twrp.
2. Format data. System, data, cache. Or go through Alpha rom 8.0 thread and follow the steps. U will be fine after flashing. Everything works here with me. I'm also on MTN Nigeria.... Battery life too is okay. Though i have ordered one of those 4100 mah battery.
I will check it out once the broadband is up and running.
 

mickeyasamoah

Senior Member
Jan 11, 2013
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Yeah H910PR is a pain, it's my current phone that i bought online with a Claro firmware

You can still unlock , root , and install custom roms on this device with H910, H915, US996 methiods, one major issue that i'm facing is just i can't install any custom kernels.
i dunno maybe there's just something wrong with how i root my device, i haven't looked much further into it because i fear i might break my device, H910 method worked tho
By " i can't install any custom kernels" do you mean when u flash a custom kernel, the device doesn't boot? doesn't boot?
 

mickeyasamoah

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Jan 11, 2013
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Guys, So i thought this was normal but i guess it isn't.

After i used dirty santa to unlock my phone, i noticed a warning message at boot. Now i had read that there was going to be a warning message from the aboot at boot so i thought it was normal until i saw how that warning actually looks like from this Thread.

Like so:


But this is how mine diplay's that warning:


Is it normal or did i do something wrong.
 

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C D

Senior Member
Jul 19, 2016
209
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TN
Guys, So i thought this was normal but i guess it isn't.

After i used dirty santa to unlock my phone, i noticed a warning message at boot. Now i had read that there was going to be a warning message from the aboot at boot so i thought it was normal until i saw how that warning actually looks like from this Thread.

Like so:


But this is how mine diplay's that warning:


Is it normal or did i do something wrong.
Definitely not normal. Maybe some files were corrupted during the whole process.
Curiously enough, someone else reported the same problem here:
https://forum.xda-developers.com/v20/how-to/lg-v20-stuck-how-to-repair-h910-t3955662
Does yours continue to boot or get stuck?
 

mickeyasamoah

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Jan 11, 2013
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Accra
Definitely not normal. Maybe some files were corrupted during the whole process.
Curiously enough, someone else reported the same problem here:
https://forum.xda-developers.com/v20/how-to/lg-v20-stuck-how-to-repair-h910-t3955662
Does yours continue to boot or get stuck?
Hmmm...Mine boots alright. Apart from some app/process crashes and also the device deciding to go crazy on me last time when it was on 5% battery and when i connect the charger, it will constantly connect and disconnect and the screen's back light would go from high to dim over and over until i turned the device off and charged, i think it's okay
 
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MEMO#22

Senior Member
Nov 28, 2016
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By " i can't install any custom kernels" do you mean when u flash a custom kernel, the device doesn't boot? doesn't boot?
After installing a custom kernel, the device just goes to fastboot. It won't proceed to booting

But i can still access TWRP so i can restore my backup before i installed the kernel, then it boots normally now
 

MEMO#22

Senior Member
Nov 28, 2016
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Hmmmm....Weird. What ROM do you have installed?
After i rooted? I installed a stock Oreo rom that was provided from a rooting thread (rooted 20h)

I did a little backread and regarding on the warning sign being static i thought that was normal, maybe there is something wrong with how i root
But i followed the instructions carefully for like, three times already but same results.
So it's tiring to go back and do it all over again
 

mickeyasamoah

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Jan 11, 2013
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Guys, I think there's something wrong.

After unlocking the bootloader, shouldn't the lock state in bootloader change from locked to unlock or something?

Cause mine still shows up as locked.




UPDATE: Could some one enter the commands I entered "fastboot oem device-info" without the quotes while in fastboot and send a screenshot?
 
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ezzony

Senior Member
Jul 4, 2012
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Guys, I think there's something wrong.

After unlocking the bootloader, shouldn't the lock state in bootloader change from locked to unlock or something?

Cause mine still shows up as locked.




UPDATE: Could some one enter the commands I entered "fastboot oem device-info" without the quotes while in fastboot and send a screenshot?
Can't be troubled to do a screenshot but I just did this for you on my rooted bootloader unlocked device and everything showed up false just likes yours. On the fastboot screen on your device there is a red label on the top of the screen, I think that indicates security is off. You won't see this red otherwise.
 

mickeyasamoah

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Jan 11, 2013
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Accra
Can't be troubled to do a screenshot but I just did this for you on my rooted bootloader unlocked device and everything showed up false just likes yours. On the fastboot screen on your device there is a red label on the top of the screen, I think that indicates security is off. You won't see this red otherwise.
Cool. One thing that bugs me is that, mine doesn't show a readable text with a single triangle at the top, instead, it's shows a scrambled text with about 4 or more triangles. I posted a screenshot a few pages back. I was told the scrambled text started after the Oreo update. But here's the case my device is on Nougat. It has been on Nougat since I received it.
 

crumbling9999

Senior Member
Feb 2, 2019
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Unless its a US996, no V20 can be bootloader unlocked. The DirtySanta method simply flashes the leaked Engineering Bootloader, which doesn't check for signature at all. Its like changing the lock so it opens to any key vs removing the lock altogether.

As for the scrambled text, its because of the engineering bootloader. Flash a custom kernel and it'll sort itself out. Alternatively, put your hand over the light sensor, then turn off the screen. Keep it there and turn it back on, it'll fix itself until the next restart
 

cnjax

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Aug 4, 2011
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Unless its a US996, no V20 can be bootloader unlocked. The DirtySanta method simply flashes the leaked Engineering Bootloader, which doesn't check for signature at all. Its like changing the lock so it opens to any key vs removing the lock altogether.

As for the scrambled text, its because of the engineering bootloader. Flash a custom kernel and it'll sort itself out. Alternatively, put your hand over the light sensor, then turn off the screen. Keep it there and turn it back on, it'll fix itself until the next restart
It's not caused by static, covering the proximity sensor gets rid of the static on screen, but does nothing for the scrambled bootloader screen.

Sent from my LG-H910 using XDA Labs
 

crumbling9999

Senior Member
Feb 2, 2019
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The scrambled bootloader is caused by the same reason as the boot static. The engineering aboot was taken from a prototype device, and there was some changes between then and release. You can adjust the value in the kernel to compensate, but you can't fix it in laf and aboot. I've had it happened once flashing a H910 package onto a LS997 to see if the radio works, its just a general kernel/aboot incompatibility issue as far as I know. Flashing a US996 based KDZ (minus aboot and maybe modem) should fix the issue.

Or even just raw_resources
 
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princedede

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Jan 5, 2014
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@C D, @princedede, @crumbling9999



That's the software details.

Unfortunately, this unit has screen retention just like my V10:(
U can easily use dirty santa on it without Flashing the H915 kdz. Just use dirty santa. Then upgrade your TWRP to the latest..

format data,
Wipe system/data/cache/dalvik/internal storage
Install los 17.1 official
Flash magisk 20.4
Flash nano gapps
Wipe cache/dalvik
Reboot