Reinstall OS without wiping data

[TheOldAndRusty]

Hi everyone!

My Galaxy A31 is not working properly, abd my guess if that an update failed and the launcher got corrupted or something along those lines. Basically it's stuck in "the phone is statrting".

I've read somewhere (but I can't find the link now) that having ADB access I could decompress a ROM on top of the current one and have it "installed" without wiping my current data (Contrary to a "factory restore").

Is that so??

I would be following this guide:

How to update your Samsung Galaxy smartphone and install official firmware

Follow these instructions to manually install Android updates through recovery and full firmware using Odin on Samsung Galaxy smartphones.

www.xda-developers.com

The device model is "SM-A315G" and the carrier is "Movistar Argentina", would it be ok to get a new ROM from this link:

Latest Samsung Galaxy A31 (SM-A315G) Argentina (Movistar) firmware

All Samsung firmwares for Galaxy A31 in Argentina (Movistar) with model code SM-A315G. We offer free and fast download options. Check them out now.

www.sammobile.com

Which of the methods in the link would be best for me?
The sdcard path sounds way easier, but again, I'm concerned whether it will wipe the local storage files or not.
I've never rooted a phone, and rooting it is not really something I care to do unless it is required...
And I'd prefer an official ROM over a "modded" one.

Thanks in advance!
Rusty.

 

[mustang7757]

Welcome to AC!
Download Odin and Frija latest version from XDA forums, then extract it on your PC when u get this far I'll guide you with the rest

 

[TheOldAndRusty]

Hi!
I apologize for not getting back at you when you replied, life has been a roller-coaster this past months and this got pushed to the side.

I've got those packages now. I you are still willing to give me a hand I will really appreciate it.

If not, any pointers in the right direction will be welcome too.

Regards.

 

[mustang7757]

Hi!
I apologize for not getting back at you when you replied, life has been a roller-coaster this past months and this got pushed to the side.

I've got those packages now. I you are still willing to give me a hand I will really appreciate it.

If not, any pointers in the right direction will be welcome too.

Regards.

Yeah definitely will help

 

[TheOldAndRusty]

Yeah definitely will help

So glad to hear that! Thank you!

I was getting these notifications at the spam folder but I've 8hopefully) corrected that now.

So, I redownloaded the apps in case they were updated in the meantime, and I have with me the phone and an USB cable with which I'm able to access using ADB.

How should I proceed now in order to reinstall the OS without wiping out the existent data?

FWIW, in the past I've tried to launch and reinstall apps but that always fails in a manner that suggests the launcher is broken making it impossible for any other app to start. (either with ADB, the screen or whatever).

Thanks.

 

[mustang7757]

So glad to hear that! Thank you!

I was getting these notifications at the spam folder but I've 8hopefully) corrected that now.

So, I redownloaded the apps in case they were updated in the meantime, and I have with me the phone and an USB cable with which I'm able to access using ADB.

How should I proceed now in order to reinstall the OS without wiping out the existent data?

FWIW, in the past I've tried to launch and reinstall apps but that always fails in a manner that suggests the launcher is broken making it impossible for any other app to start. (either with ADB, the screen or whatever).

Thanks.

Ok so once you extract Odin , open it up and the firmware from Frija you download to your computer and extracted?