OTA updates after root? - Samsung Galaxy S8 Questions and Answers

Hi, I have a european S8+ fully rooted and with TWRP.
Everything's working great so far but I read somewhere that I won't receive further OTA updates.
Can I install them manually with TWRP?
If yes, 3 questions:
1. Where can I get them?
2. Do I need every single update or are the newest update always containing the older updates as well?
3. Do I lose root or TWRP after installing an update?
I've rooted with Magisk by the way.

Typically if you're rooted and modified the system partition (BusyBox or twrp or whatever) the update will not install in stock recovery. Usually you have to unroot reinstall stock recovery and flash ota. There's toolkits out that can do that. Or you can just find an awesome rom like a rooted debloated rom thats just recently updated and just flash that. Or you can what till somebody snags the ota update location then posts that.

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NOOB Question - OTA after rooting and TWRP

Hi all,
Sorry for the noob question.
Can I receive and install official OTA updates after rooting and installing TWRP ?
Thanks.
NO!
Ota
Oh. Can I flash the ota zip from twrp?
Kindly guide me as I am clueless.
Thanks
You can receive OTA with TWRP, but not if you're rooted. My method of getting OTA is by keeping a stock rom zip on my sd card. When an OTA comes out, I flash the zip, breaking root, boot into OxygenOS, accept the OTA, it should install, then I reboot to TWRP and flash SuperSu.
You can flash the OTA from TWRP, but when I tried that, it said I was on the correct version in about phone, but it still kept telling me there was an update available.
Here's a link to stock roms, and OTA zips.
https://forums.oneplus.net/threads/oneplus-2-stock-rom-collection-updated-01-09.347627/

Can I flash OTA zip over a unlocked and rooted stock firmware?

I know that I can't get OTA normally if I have any system level modifications like root or xposed installed.
However, I came across this thread which lists both, the stock firmware images and individual OTA update zips.
With the zip for OTA in hand, will flashing them on a rooted stock device cause problems?
You can install the factory images but it will be a clean install. You will have to root the phone after. You can learn how to flash those images here, http://forum.xda-developers.com/nexus-6p/general/guides-how-to-guides-beginners-t3206928
No. You can't flash an OTA if you're modified. You must flash the factory images.
Thanks! Guess I have to download the full thing everytime.
Thanks!

How to update once rooted?

I plan to get my OP5 today, and will update it before I root it, but I'm curious about future updates. Is my understanding correct that the OTA will fail, and the only way to upgrade is by waiting for the full stock ROMs to be posted here to flash in TWRP? From the previous phones, how long of a delay is there typically between an OTA and when we can flash it via TWRP? Does the full ROM that you flash also include the modem/radio files, or does that need to be flashed separately?
If you are stock and not rooted: updates come OTA as incremental updates. Small filesizes.
If you are stock and rooted: updates come OTA as FULL zips. Full ROM size. 4.5.2 for me was around 1.6GB in size.
Both will come through the official OTA mechanism. When the device reboots and installs, it runs on TWRP automatically without any manual user intervention.
tl;dr: Will still be OTA, but bigger filesizes. You will have to re-root (re flash SuperSU, Magisk, whatever)...
---------- Post added at 10:36 AM ---------- Previous post was at 10:36 AM ----------
If you are stock and not rooted: updates come OTA as incremental updates. Small filesizes.
If you are stock and rooted: updates come OTA as FULL zips. Full ROM size. 4.5.2 for me was around 1.6GB in size.
Both will come through the official OTA mechanism. When the device reboots and installs, it runs on TWRP automatically without any manual user intervention.
tl;dr: Will still be OTA, but bigger filesizes. You will have to re-root (re flash SuperSU, Magisk, whatever)...
I'm stock and rooted, the OTA came as a 36MB update.
ota
I just rooted and wanted to update with OTA to 4.5.2, it rebooted into twrp and did something for a second and went back to the normal menu. I then rebooted and it told me that the update did not apply. I just flashed the 1.4 GB OTA and rooted over again, for the next update, do i have to wipe before i install the new OTA manually or can i just flash the never big version over without having to wipe it?
Do I have to flash TWRP for the OTAs to work once rooted? Or will they still install with stock recovery?
I rooted with "fastboot boot TWRP.img" instead of actually flashing TWRP to the system...
1. make backup
2. save it on your computer
3. flash latest TWRP - reset back to recovery
4. flash OOS 4.5.2 Full Rom Zip and SuperSU or Magisk
5. Wipe Dalvik & Cache
6. make new backup if everything works fine, so you have it just in case
geoff5093 said:
I plan to get my OP5 today, and will update it before I root it, but I'm curious about future updates. Is my understanding correct that the OTA will fail, and the only way to upgrade is by waiting for the full stock ROMs to be posted here to flash in TWRP? From the previous phones, how long of a delay is there typically between an OTA and when we can flash it via TWRP? Does the full ROM that you flash also include the modem/radio files, or does that need to be flashed separately?
Click to expand...
Click to collapse
If you are rooted, the phone automatically chooses to download the full OTA zip.
I want to root the phone and unlock bootloader. But firstly, i want to make backup all the settings/applications etc. How can i do that? I am full stock now
You can try Helium backup by clockworkmod. It is supposed to be basically a more friendly interface to `adb backup`.
For the record I couldn't get it to restore properly when I rooted my Shield TV, but I was probably doing something wrong.
I plan on rooting about to do it now. When another OTA update come along from above says I will get the full download but it will not erase any data or setting, right? Will be just full update but all will be intact?
parcou said:
I plan on rooting about to do it now. When another OTA update come along from above says I will get the full download but it will not erase any data or setting, right? Will be just full update but all will be intact?
Click to expand...
Click to collapse
As part of rooting, you will need to unlock your bootloader, which will wipe all data on the device. This is a one time thing.
After that, when you get OTAs, your data, apps, etc., will be intact, but it will overwrite several system partitions (that's why it's the larger download). So you will need to reinstall TWRP or whatever recovery, and reflash your root zip every time an OTA comes along.
If you have the space, it doesn't hurt to make a TWRP backup before installing the OTA.
Hope that all makes sense!

OTA update with Magisk

Hi guys! I'm on stock rom Nougat, since i installed magisk i'll always get error when i tried to update my phone from Update setting (samsung things...).
But when i installed Xposed and especially a module known as Firefds which set fake system status to "Official" (it was "Custom"), when i go back to check for a new update i found this (attachement).
So what do you think guys? Should i update? Maybe its November security patch...
But i don't want to lose twrp, magisk and all the stuff !!
This update didn't includes November patch so far I know. This will be listed in the patch notes for sure.
If you install the OTA update...this will end not well I think. You will running in an unstable system because of root, twrp etc. This update will replace files which are eventually needed and so on.
I suggest you flash stock rom with odin, then install the update then re-root and re-flash twrp. Yes it is annoying, but its better to be safe than sorry
zzThrain said:
I suggest you flash stock rom with odin, then install the update then re-root and re-flash twrp. Yes it is annoying, but its better to be safe than sorry
Click to expand...
Click to collapse
What about flash this update using FlashFire and keep twrp & magisk? I saw it in many other phones
Mrbinki said:
What about flash this update using FlashFire and keep twrp & magisk? I saw it in many other phones
Click to expand...
Click to collapse
You can of course do so...but my experience is that such methods will not end well. Do it like @zzThrain wrote it and download firmware from SamMobile with DQJ3 and reflash twrp and re-root to be sure that your system don't come unstable.
Any chance for OTA updates with Magisk only (without Xposed, etc.)?
If there is no chance - is there a place to download only monthly security updates - since full firmware versions (found at sammobile) are at least 10x times larger than the monthly updates?

can I flash ota update in twrp?

I received ota update notification. I downloaded the zip, it is npn25-37, currently my phone is on npn25-33. I have magisk root and twrp. I wonder if I can flash the ota update zip in twrp? Thanks
xdataibai said:
I received ota update notification. I downloaded the zip, it is npn25-37, currently my phone is on npn25-33. I have magisk root and twrp. I wonder if I can flash the ota update zip in twrp? Thanks
Click to expand...
Click to collapse
It will not work, OTAs require the stock recovery. Since you hace TWRP there is also a chance that it might have mounted your system before, so your system image isn't vanilla anymore and the OTA will fail to apply. First try flashing stock recovery from here (search for the version you currently have, which is -33) https://forum.xda-developers.com/g5-plus/how-to/firmwares-moto-g5-plus-t3593160 and then apply the ota. Since the firmware you're on is quite outdated, you'll probably have a couple more OTAs on the way.
Now if that doesn't work, you'll need to back up everything you have (apps and data) and flash system, oem and recovery, and then apply the ota updates, then restore your data.

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