RS988 21d OTA in the wild

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kattolo

Member
Dec 13, 2010
23
7
Chicago
The RS988 finally has a new OS update with Google patch level Dec 1st, and that means that we are finally good against blueborne and krack!



Sent from my RS988 using Tapatalk
 
Apr 11, 2008
35
12
Moto G7
OnePlus 7T
I just installed it. It's about time. I was beginning to wonder if they had stopped support on the RS988. I hear the LG G5 is supposed to get Oreo, but I have a feeling that the RS988 will get left out based on how the updates have gone so far.
 

kattolo

Member
Dec 13, 2010
23
7
Chicago
I rooted my device with SuperSU and TRWP, is it advisable install this update? Won't it remove or disable the root access?
From what I know, in order to get the ota your bootloader needs to be the stock one, but I could not find it outside of full kdz packages.
I have not rooted yet waiting for this specific update (given the security fixes).
I would suggest you to backup all of your apps and settings with an app like Titanium Backup, flash stock, install the ota, reinstall TWRP, root and magisk and then restore apps and settings from the backup

Sent from my RS988 using Tapatalk
 
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Nispero

Member
Jan 4, 2018
6
0
Uceda, Guadalajara
From what I know, in order to get the ota your bootloader needs to be the stock one, but I could not find it outside of full kdz packages.
I have not rooted yet waiting for this specific update (given the security fixes).
I would suggest you to backup all of your apps and settings with an app like Titanium Backup, flash stock, install the ota, reinstall TWRP, root and magisk and then restore apps and settings from the backup

Sent from my RS988 using Tapatalk
Sorry for asking, but where do I get the flash stock? I loaded SuperSU-v2.82-SR5-20171001224502.zip and TWRP-3.0.2-1-RS988.img to root after unlocking the bootloader
 

kattolo

Member
Dec 13, 2010
23
7
Chicago

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Awkydee

Senior Member
Oct 24, 2016
113
29
Largo, FL
The way I had to update was to flash 21a and then take OTA's up to 21d because when I flashed 21c back to stock using TWRP and tried to update it gave me an error and then rebooted and said I can't update because I had rooted the device.
 

Diablo_692

Senior Member
Jul 11, 2011
71
9
I'm not completely sure (did not write down the previous baseband)
I'm attaching the current info

Here's the baseband version with RS98821c: MPSS.TH.2.0.c1.4-00047-M8996FAAAANAZM-1.88674.1.101802.1

The numbers are slightly different at the end compared to RS98821d , but I'm not sure what if anything might have changed.
 

kattolo

Member
Dec 13, 2010
23
7
Chicago
If recovery is not the stock one, it will not be possible to install the OTA.
Alternatively you might need to wait for someone to make a flashable zip you could flash with TWRP, but given the fact development on this phone is not too active you might need to wait for a while before is available

Sent from my RS988 using Tapatalk
 

brewerywagon

Member
Nov 15, 2015
6
1
Lansdowne, PA
The way I had to update was to flash 21a and then take OTA's up to 21d because when I flashed 21c back to stock using TWRP and tried to update it gave me an error and then rebooted and said I can't update because I had rooted the device.

I was also planning on flashing the complete 21c zip so that I could take the 21d OTA. Glad to know that might not work.

Anyone know if it would be possible to install just the stock 21c recovery image? It's my understanding that having a custom recovery installed is what makes the OTA installation fail. If TWRP is what's getting in the way of installing the OTA, wouldn't replacing TWRP with stock recovery solve the problem without touching the system? If anyone who knows more about this stuff than me could chime in, I'd appreciate it.
 
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Awkydee

Senior Member
Oct 24, 2016
113
29
Largo, FL
I was also planning on flashing the complete 21c zip so that I could take the 21d OTA. Glad to know that might not work.

Anyone know if it would be possible to install just the stock 21c recovery image? It's my understanding that having a custom recovery installed is what makes the OTA installation fail. If TWRP is what's getting in the way of installing the OTA, wouldn't replacing TWRP with stock recovery solve the problem without touching the system? If anyone who knows more about this stuff than me could chime in, I'd appreciate it.

First I flashed the magisk uninstaller and rebooted back to recovery. Then I flashed the 21c COMPLETE ZIP and didn't flash magisk so it would replace TWRP with the stock recovery on reboot. Then I rebooted and when I tried to update it went to the stock and threw up an error then rebooted. Upon reboot it displayed a message saying that I couldn't update because my device had been rooted. So I rebooted back in to bootloader and flashed TWRP again. Then I flashed 21a COMPLETE ZIP and no magisk so that the stock recovery would replace TWRP. I rebooted and went through setup and took OTA updates until I was on 21d. Then rebooted back into bootloader and flashed TWRP. Then rooted and we've through setup. I tried every other way but this was the only way that worked for me. I hope it helps!
 

FAUguy

Senior Member
Mar 1, 2011
943
137
South FL
Some of you may remember that last year I had the misfortune of installing the Brightpoint ROM on my Unlocked G5, which completely messed the phone up by not allowing it to connect to AT&T's LTE. It was a process to re-flash the older ROMs/Bootloader and then rebuild it to a stable 21c. I had used it for a while like that, and the only problem I had was that when ending a voice call (HSPA) it would take a while to change back to LTE.

I ended up going with the S8 over the summer (Samsung discount + Note 2 trade in) which got it for $18/month. I've been using it ever since and the LTE to HSPA Voice to LTE change-off on the S8 is done within a second, unlike the G5.

My mom had been using an unlocked Samsung S5 for almost a year now, and it's constantly dropping calls, and this past week it froze on her and required a battery pull, so was thinking of having her try out my (unused) G5 to see if she liked it more. When I turned the G5 on today, I updated all the apps, and then installed the 21d OTA update. The hand-off from voice to LTE still is not as fast as my S8, but seems to be improved from the 21c firmware.
 
Last edited:

ingressor

Member
Jun 15, 2009
34
0
Tashkent
Hi. After 21d received my phone starts to rebbot when I try to play music on phone. No matter if this is stock player or google music. After self reboot music plays normally but if I click pause and wait until first stand by mode, the problem returns. Want to ask you guys to check if you have the same problem or I should download full version of 21d and check if the problem still exists. Thanks.
 

FAUguy

Senior Member
Mar 1, 2011
943
137
South FL
Hi. After 21d received my phone starts to rebbot when I try to play music on phone. No matter if this is stock player or google music. After self reboot music plays normally but if I click pause and wait until first stand by mode, the problem returns. Want to ask you guys to check if you have the same problem or I should download full version of 21d and check if the problem still exists. Thanks.

I'm not having any reboot issues when playing music.
 
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  • 2
    I was also planning on flashing the complete 21c zip so that I could take the 21d OTA. Glad to know that might not work.

    Anyone know if it would be possible to install just the stock 21c recovery image? It's my understanding that having a custom recovery installed is what makes the OTA installation fail. If TWRP is what's getting in the way of installing the OTA, wouldn't replacing TWRP with stock recovery solve the problem without touching the system? If anyone who knows more about this stuff than me could chime in, I'd appreciate it.

    First I flashed the magisk uninstaller and rebooted back to recovery. Then I flashed the 21c COMPLETE ZIP and didn't flash magisk so it would replace TWRP with the stock recovery on reboot. Then I rebooted and when I tried to update it went to the stock and threw up an error then rebooted. Upon reboot it displayed a message saying that I couldn't update because my device had been rooted. So I rebooted back in to bootloader and flashed TWRP again. Then I flashed 21a COMPLETE ZIP and no magisk so that the stock recovery would replace TWRP. I rebooted and went through setup and took OTA updates until I was on 21d. Then rebooted back into bootloader and flashed TWRP. Then rooted and we've through setup. I tried every other way but this was the only way that worked for me. I hope it helps!
    2
    ROM Posted

    Just to let you all know, I have posted the latest 21d stock ROM in my thread here: https://forum.xda-developers.com/lg-g5/development/stock-21c-roms-flashable-zips-imgs-t3679907
    1
    I rooted my device with SuperSU and TRWP, is it advisable install this update? Won't it remove or disable the root access?
    From what I know, in order to get the ota your bootloader needs to be the stock one, but I could not find it outside of full kdz packages.
    I have not rooted yet waiting for this specific update (given the security fixes).
    I would suggest you to backup all of your apps and settings with an app like Titanium Backup, flash stock, install the ota, reinstall TWRP, root and magisk and then restore apps and settings from the backup

    Sent from my RS988 using Tapatalk
    1
    The way I had to update was to flash 21a and then take OTA's up to 21d because when I flashed 21c back to stock using TWRP and tried to update it gave me an error and then rebooted and said I can't update because I had rooted the device.

    I was also planning on flashing the complete 21c zip so that I could take the 21d OTA. Glad to know that might not work.

    Anyone know if it would be possible to install just the stock 21c recovery image? It's my understanding that having a custom recovery installed is what makes the OTA installation fail. If TWRP is what's getting in the way of installing the OTA, wouldn't replacing TWRP with stock recovery solve the problem without touching the system? If anyone who knows more about this stuff than me could chime in, I'd appreciate it.
    1
    Hi. After 21d received my phone starts to rebbot when I try to play music on phone. No matter if this is stock player or google music. After self reboot music plays normally but if I click pause and wait until first stand by mode, the problem returns. Want to ask you guys to check if you have the same problem or I should download full version of 21d and check if the problem still exists. Thanks.

    I'm not having any reboot issues when playing music.