OTA update (twrp + root + custom kernel) - Samsung Galaxy S7 Edge Questions and Answers

Hi,
Currently I'm using stock ROM (rooted) + 3.18.51 Super Stock kernel. Now I cannot receive update via software update (security patch) since I'm using rooted phone. So my question is there any other way to update it? I check via google and what I found is I can do it via odin by downloading the firmware at Sammobile and flash it. My concern is that if I flash latest firmware via odin does my data will be wipe and my custom kernel will revert to stock kernel? How about root and twrp? Do I need to do it from scratch again after flash? If anyone know any trick please help me.
Thank you so much for your kindly help and I really appreciated it.

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[Q] installing firmware in costum ROM

Hi, I'm currently using Alliance rom with firmware ang2. Was just wondering if it's safe to flash an updated firmware like ang9 for G900f device. Thanks
Obetzzz23 said:
Hi, I'm currently using Alliance rom with firmware ang2. Was just wondering if it's safe to flash an updated firmware like ang9 for G900f device. Thanks
Click to expand...
Click to collapse
Do you want to unroot or what do you want to do?, explain yourself so we know what you mean
I want to upgrade firmware tru Odin. I heard the latest firmware for my device is ang9. I jus want to make sure if its safe to flash it while currently using a costum rom (Alliance) base on firmware ang2
Obetzzz23 said:
I want to upgrade firmware tru Odin. I heard the latest firmware for my device is ang9. I jus want to make sure if its safe to flash it while currently using a costum rom (Alliance) base on firmware ang2
Click to expand...
Click to collapse
If you want to remove root:
- Use Triangle Away to reset the binaries and system status to official
- Unroot from within the superSU app
- Flash the rom with Odin
- Data factory reset
If you want to keep root:
Use Mobile Odin Pro to flash the new rom and keep root. Check inject superSU, Everroot and the other option.After it reboots do a data factory reset (root will stick btw).
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fffft said:
No it's not safe nor recommended. If you had done a search you'd find dozens of threads asking and answering this question in existing threads. Accepting an OTA update is likely to break root and sundry custom ROM features.
You should refer to the custom ROM support thread where the developer will either tailor updates for your ROM. Or at least power users will discuss their effect on the ROM and how to best apply an update to your particular ROM.
.
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Click to collapse
OP is talking about flashing a full stock rom with Odin as i understand , not about getting or installing OTA`s as he is on a custom rom atm
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[Q] S5 official update to rooted device with official rom

Hi,
On my S5 (SM-G900FQ) , there is original Samsung ROM (4.4.2) , rooted but with default Recovery.
I want to update to new official rom (Lolipop) and then re-root.
What is the most easiest and convenient way to achieve this ?
I can update to Lolipop rom through Odin. But then how can I get back root easily ? (without installing CWM if possible)
If I have to install CWM, which version should I use ?
Thanks.
I'd appreciate any help. There are lots of threads talking about root'ing but I couldn't find the one which works for Lolipop official ROM.

Newbie requesting help to upgrade from 4.2.2 to Lollipop

Hello,
I have a rooted i337 with MDL baseband, running stock 4.2.2 firmware. I am currently out of the US and therefore cannot receive any OTA. I want to upgrade to Lollipop or Marshmallow based custom ROMs, esp those that can still use the IR feature of the S4.
Can anyone guide me on how I do this upgrade, without bricking my phone? Would truly appreciate your help. Thanks.
Have you tried running ota updates via wifi without a SIM card in the phone.
To run a custom rom, you would need to install a custom recovery to flash the rom. Some mm and LP ROMs may not work with a 4.2.2 modem and bootloader.
If you want to use a custom ROM, DO NOT take any OTA updates. If you take an OTA and it is successful, then you will no longer be able to install a custom ROM.
Here is the Cyanogenmod thread to install CM to your phone: http://forum.xda-developers.com/showthread.php?t=3008609
If you would like to update to official ATT/Samsung lollipop(there is also a way to have root)[remember, once you take an official update from MDL, then you will no longer be able to install a custom ROM and you may never be able to get Marshmallow]: http://forum.xda-developers.com/showthread.php?t=2926642

Can I Install Stock Firmware on my SMG530H Using TWRP Recovery?

I'm running RR CM13 now, every custom rom i installed can't solve rear camera problem.
Anyone please help me, can i install stock firmware using TWRP??
Installing a stock firmware through twrp is a tedious process...it gives u a headache.. The better way is to do it via computer through Odin.. U can download the stock firmware from site called Sam mobile..

Is it possible to update firmware with custom rom installed?

Hey guys, i searched a lot, on google and xda, but i think i couldn't find the answer to my question.
I have the latest unofficial LineageOS 8.1.0 Oreo installed, with TWRP.
At home my phone is losing wifi signal every few minutes and then it reconnects again, as far as i know this was already a problem with stock Samsung ROM installed. Now, since i rooted and installed TWRP and LOS i ask myself, if there is a possibility to update latest firmware / modem / booloader without wiping the device, respectively flash the whole Samsung stock ROM with Odin and root / the device again?
To be simple: Is it possible to flash extracted parts of the official Samsung FW package with odin or flashfire to update wifi modem / firmware without losing data and wipe my installed LOS rom?
All i could find was how to do this with official rooted samsung ROM but not how to update with an installed custom rom?
Maybe somebody can help me out here Thanks in advance!
EDIT: I found that somebody made twrp flashable modem and bootloader files! Thatd awesome, you can find the thread here: https://forum.xda-developers.com/galaxy-s7/how-to/guide-onelatest-stock-fw-csc-root-t3702963
BatZzn said:
Hey guys, i searched a lot, on google and xda, but i think i couldn't find the answer to my question.
I have the latest unofficial LineageOS 8.1.0 Oreo installed, with TWRP.
At home my phone is losing wifi signal every few minutes and then it reconnects again, as far as i know this was already a problem with stock Samsung ROM installed. Now, since i rooted and installed TWRP and LOS i ask myself, if there is a possibility to update latest firmware / modem / booloader without wiping the device, respectively flash the whole Samsung stock ROM with Odin and root / the device again?
To be simple: Is it possible to flash extracted parts of the official Samsung FW package with odin or flashfire to update wifi modem / firmware without losing data and wipe my installed LOS rom?
All i could find was how to do this with official rooted samsung ROM but not how to update with an installed custom rom?
Maybe somebody can help me out here Thanks in advance!
Click to expand...
Click to collapse
I think you can update the bootloader and modem without wiping anything. Just flash thru odin. I'm on a custom rom by the way.

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