New RS988 Software Update - 21c

[Diablo_692]

In order to be able to perform the OTA upgrade at the very least your recovery (and possibly boot partition as well) needs to be the stock one, if you have TWRP and rooted the upgrade will fail.
I believe that the proper recovery for the 21a should be available in CODEFIRE's downloads

First of all I'd suggest you to take a full backup of apps and data (I personally use titanium backup) and save it on your PC

Go to the All in One thread from Autoprime (https://forum.xda-developers.com/lg-g5/how-to/info-autos-g5-thread-t3350648) and look for "Download LG G5 Files From Codefire Here"
in the RS988 folder for the 21a I saw a recovery.img that likely is the stock one. If that is indeed the stock recovery, you can flash it in fastboot (you might need to flash the boot too if the update fails with the correct recovery) , run the update and then reflash TWRP and suspersu (in case you lose SU)

I would suggest you to confirm with the codefire team if that is the correct file (it is in the correct folder but the name is quite generic), worst case scenario, in case it is not and you have already flashed it, you might need to reflash back twrp and wait for the correct one to be made public before being able to run the update with minimal hassle.
If the boot partition was patched too upon rooting, some checksum might cause the update to fail as well

Alternatively you could take a full app/data backup, reflash 21a stock, run the updates, reflash twrp and then root again and restore the original app/data backup


I now have a question still related to this upgrade; is there any way to pull a backup of the 21c (including boot and recovery)?
No recent kdz appears to be available, hopefully we will get another patch sometime soon that could address the blueborne vulnerability, and I wanted to have a way to restore boot and recovery to stock so to run the future OTAs.

would I need to unlock, boot in twrp (fastboot boot twrp-3.0.2-1-rs988.img) and run a dd dump of sde1 and sde2 from there?

I too hope a security patch is coming (we're still on July with 21c) to address the vulnerability you speak of, as well as a patch for Nougat that addresses "Doze" and how it seems to have broken the LG Email app, as auto syncing per the peak/off peak times we set up don't seem to work. It worked fine on 6.0.1, but not since the upgrade to Nougat. Now new emails only come through randomly throughout the day, if at all, without doing a manual sync.

 

[kattolo]

I too hope a security patch is coming (we're still on July with 21c) to address the vulnerability you speak of, as well as a patch for Nougat that addresses "Doze" and how it seems to have broken the LG Email app, as auto syncing per the peak/off peak times we set up don't seem to work. It worked fine on 6.0.1, but not since the upgrade to Nougat. Now new emails only come through randomly throughout the day, if at all, without doing a manual sync.

I have contacted LG in regards to blueborne and the fact it was addressed in the September patch, and while this seems a little bit of a "standard response" it shows that they are at the very least aware of the issue and they have acknowledged it:

"We recognize how important it is to help protect your privacy and security using our products. LG is committed to bringing its customers the utmost in device security. Your concerns have already been raised to our Developers team and please expect immediate positive response from them regarding this matter. I couldn’t provide you for now the ETA for a security patch/update to be pushed through to the phone to fix the issue but we will keep you posted once we got a word from them."

If they get back with some more info I will post some updates

 

[Unscedeo]

I now have a question still related to this upgrade; is there any way to pull a backup of the 21c (including boot and recovery)?
No recent kdz appears to be available, hopefully we will get another patch sometime soon that could address the blueborne vulnerability, and I wanted to have a way to restore boot and recovery to stock so to run the future OTAs.

would I need to unlock, boot in twrp (fastboot boot twrp-3.0.2-1-rs988.img) and run a dd dump of sde1 and sde2 from there?

By the way, thanks for the info @kattolo.
I am currently in the process of compiling the stock ROMS for the 21a, 21b, and 21c versions. I have already pulled the .img files from my system, and am now putting them into a TWRP-flashable .zip.
I will create a new thread and post the .zips there when I am finished.

 

[firenemesis7]

the 21a .zip has already been created it can be found here http://downloads.codefi.re/autoprime/LG/LG_G5/RS988/

 

[Unscedeo]

I have posted 21c files

Hello RS988 owners,

Just as a heads up, I would to inform you that I posted the stock 21c IMG files along with TWRP-flashable ZIPs.
Thread: https://forum.xda-developers.com/lg-g5/development/stock-21c-roms-flashable-zips-imgs-t3679907

Be sure to check it out!
I will also try to get around to posting the previous versions, such as 21b (probably not 21a as @autoprime has already done that).

 

[drae16]

require the kdz for this update

 

[Dildacorn]

Oh I was just worried about mobile hotspot and usb tether. Verizon users with classic unlimited plans are technically not allowed to tether. Anyway I am happy to report that 21c does not hinder any of those features either.

Oh internet tether for a PC. Yes this does work on the latest RS988 nougat update.