Can i downgrade my samsung galaxy a5 2017 Oreo back to Nougat using ODIN

[Decoy021]

I have updated software 1 night before i updated last security patch which came in on august 1st and it says that the current version is A520FXXSBCSH4/A520FOJVBCSF1/A520FXXSBCSG2 i was trying to find 7.0 Nougat version of some of these firmwares but the only versions i found were Oreo 8.0.When i had 7.0 Nougat installed was this firmware version " A520FXXSBCSH4/A520FOJVBCSF1/A520FXXSBCSG2" same like this or back then weredifferent these? i am asking because i am confused about which firmware i need for ODIN, if someone knows please link me.I hate oreo its draining my battery a lot faster.

 

[mustang7757]

I have updated software 1 night before i updated last security patch which came in on august 1st and it says that the current version is A520FXXSBCSH4/A520FOJVBCSF1/A520FXXSBCSG2 i was trying to find 7.0 Nougat version of some of these firmwares but the only versions i found were Oreo 8.0.When i had 7.0 Nougat installed was this firmware version " A520FXXSBCSH4/A520FOJVBCSF1/A520FXXSBCSG2" same like this or back then weredifferent these? i am asking because i am confused about which firmware i need for ODIN, if someone knows please link me.I hate oreo its draining my battery a lot faster.

Hi, welcome!
Try xda forums or sammobile

 

[Golfdriver97]

How long have you been on the new update?

 

[mustang7757]

Duplicate post: I'll link.you to the orginal

https://forums.androidcentral.com/showthread.php?t=978169

 

[Decoy021]

exactly 4 days.

 

[mustang7757]

exactly 4 days.

You have a chance to go back ,just look up that firmware on XDA forum or sammobile
Make sure Odin 3.13.1

 

[Golfdriver97]

New OS versions come with a new kernel. It usually takes several days for everything to settle down. I would wait another few days before deciding about the battery life.

 

[Decoy021]

I dont think i will get used to Oreo, i can no longer remove the "white things" around icons even if there is option to do so it just doesnt work, it used to work on Nougat.Also the battery is very important to me more than new functions.

 

[Decoy021]

XDA forum looks very confusing, i will try searching on sammobile, just to be clear i have to search for every of these versions A520FXXSBCSH4/A520FOJVBCSF1/A520FXXSBCSG2 or just one of it? This is my first time that im gonna try downgrade a phone so im not very familiar with anything but im a fast learner so i believe i can do it.

 

[Rukbat]

Restart into recovery and clear the cache, to see if that helps with the battery. (Not the data, only the cache!)

Nougat is around QK7. SH4 is Oreo. SG2 is Oreo. (SF1 is the CSC - the localization for your language, country, etc.) You can find Nougat at http://www.droidthunder.com/update-galaxy-a5-sm-a520f-to-android-7-0-nougat-xxs2bqk7-firmware/, but you'll have to do a factory reset, so be sure to back up EVERYTHING. (See Backing up an Android Device.)

Or, as mustang said, you can try on XDA Forums. (Sammobile only has Oreo.)

Start at https://forum.xda-developers.com/samsung-a-series-2017/development for XDA.

[Samsung] How to flash Stock ROM via ODIN is full instructions for running Odin to flash a Samsung ROM.

(If you're allowing the battery to drop to below 40% before charging it, you're killing the battery, so don't do that. Go from 40% to about 99% [if the charging chip goes bad the battery can overcharge and that will ruin it.])

 

[Decoy021]

https://www.sammobile.com/samsung/galaxy-a5-2017/firmware/SM-A520F/XSG/ i have found these.But as you can see my PDA and CSC only states that they are 8.0 Oreo version, but there are some others that are 7.0 should i for example use A520FXXU4BRE3 this one? it says its 7.0

 

[Decoy021]

i would really like to know which Nougat version i exactly had before but i forgot.So it doesnt matter which country it says its from? for example you sent me the India one and here i found the UAE (united emirates) one which is the one my phone currently has on A520FXXSBCSH4 you said SH4 is oreo.So i guess my Nougat version was also United Emirates and i should look for its version?

 

[Decoy021]

One more question, no matter which Nougat version i install they all work and are the same as was my previous? i mean no difference in speed, battery duration?

 

[Decoy021]

Also should i download Nougat version you sent me or some of these https://www.sammobile.com/samsung/galaxy-a5-2017/firmware/SM-A520F/XSG/ that are 7.0 United Emirates version?

 

[Decoy021]

ah just by seeing how complicating this is and how i can destroy my device makes me not even wanna try to do it.Im gonna try taking my phone to phone service maybe they can do it.

 

[mustang7757]

If you give me time like little later tonight I can look it up for you , your version have to be careful you have unlocked bootloader that will.load anything up lol

ah just by seeing how complicating this is and how i can destroy my device makes me not even wanna try to do it.Im gonna try taking my phone to phone service maybe they can do it.

 

[Decoy021]

sure take your time, i hope u can help me.Since i updated it i hate it i literally feel truly dissapointed since its my new phone and i was very happy with nougat.

 

[mustang7757]

sure take your time, i hope u can help me.Since i updated it i hate it i literally feel truly dissapointed since its my new phone and i was very happy with nougat.

Ok ...will do my best ...talk later

 

[mustang7757]

What's your country code and model number?

 

[Decoy021]

My model number is SM-A520F but its dual sim, my country code is 381.