yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Cool.

So...probably downgrading is not an option. Never a good idea anyway, but pretty sure you can't downgrade from U3 bootloader.

Stick with what you have.

---------- Post added at 09:36 AM ---------- Previous post was at 08:58 AM ----------

What have you managed to flash with Odin so far?
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
I gotta wait those seven days, went to download mode, got "RMM State : Prenormal"

Will update then
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
This is still a positive. Be patient and avoid the temptation to restart. Keep an eye on your up time
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
Man, I forgot to stay on wifi and went with the phone outside, after getting in wifi range, rebooted and gotta wait again. FML

Anyways, i didn't notice that my SIM it is not recognized, on other phone it did, did change network mode, selected network provider and wiped cache on recovery(Stock Recovery obviously).

Nothing worked.

Help, thank u.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Have you flashed the FULL firmware in Odin?
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
Edit: After being a while on stock it asked me for updating the device. I accepted.

All of it bl ap cp and csc no problems on flashing nor booting, ROM from my own region.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Can you switch to 3G network?
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
In network mode i dont get those, i get LTE/WCDMA/GSM

And when selecting GSM the phone kinda tries to get the registering done, but then shows error.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Try WCDMA
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
I did, same result, well not exactly, it does not even show me any loading, just the error "Unable to connect, try later."
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Try to ignore registering on networks. Just try selecting network type.

Change to GSM. leave it and see what it does.

Reboot. Check.

If no luck....change network type to WCDMA. Wait.

Reboot. Check.

If you notice more response on one, then check APNs.

Make sure APN settings are correct for your provider (your network provider should have information on this on their support site)

I'm on UK time, so will check in with you tomorrow. Post your findings here :svetius:
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Any luck?
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
Ah Nope, turning on and off airplane mode didnt work either.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Okay. Change network type back to LTE. Do nothing else.

Time to check the phone in Safe Mode

Follow these instructions:

With the device switched on, hold down the Power button until the options appears on the screen.

From the following menu tap Restart two times

While the phone is restarting press and hold the Volume Down button and release when the phone is turned on again

You should notice the Safe Mode logo in the left corner of the screen

Let me know when you are at this stage. If not - we can try another way.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
Ok, I am in safe mode.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Cool - sorry about my instructions there - my phone wouldn't let me do all the post, so had to come on PC!

Okay - test that SIM

Let me know results for LTE connection - if it fails, let me know WCDMA connection - if it fails, let me know GSM connection.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
All 3 of them fails "unable to connect, try again later".

Also, if it matters, i think the SIM it is not the problem, told you went with the phone outside, when I did was for Buying a new sim, directly from the provider.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
:mad:

So...

The phone is stuck in emergency calls only mode?

Can you see all local networks (Vodafone, Orange, JIO etc...)?

When you try to connect (in any of the modes GSM/WCDMA/LTE) you get the same error message

Does the SIM card work in other phones? (are you able to check this?)

Check if other people's SIM cards have the same issue in your phone
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
It is indeed in emergency calls mode, I do see the local networks and will check that out.

Edit, as soon as i did get the sim out of the phone a message prompted out, asking me to check simcard tray.

Sim does work in other phone, cannot check if other sim works on it, non of my family has nano or adaptable SIM cards.

Ty for helping btw :)
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Okay - and when you put it back in?
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
Showed for a little bit the network provider, then went back again at emergency calls only.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
No problem buddy - I am trying to get to the bottom of this!! Thank you for your patience.

The phone is stuck in emergency calls only mode.

You can see all local networks

When you try to connect (in any of the modes GSM/WCDMA/LTE) you get the same error message

The SIM card works in other phones - I wonder if the IMEI is screwed up:

Check if other people's SIM cards have the same issue in your phone - still could do with checking this.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
And looks like IMEI config are just possible after rooting, doesn't it.

:confused:
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
I wonder if you could check the IMEI details are correct for your phone?

In your phone dialler type *#06# to get your IMEI number

Go to http://www.imei.info/ and enter your IMEI number in the box

Check the information is correct for your phone - don't post your IMEI number here for security purpose

Could also be an EFS issue.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
Looks like everything its okay, idk really, there are some options on that page, should i check'em?
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Give it a go, yes. May as well!!
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
The paid ones, i cannot get into them, i don't have a way to pay them :crying:

EDIT:

Hmm I dont know if it does matter, but i will point it out.

The phone was originaly bought with the provider customized OS, instead of "Samsung" logo on bootup, it was the provider logo and some apps and stuff of the provider aswell and i did flash the stock rom, but without provider customizations.

What if it is blacklisted or if the efs folder got corrupter or something, as I said, those can be touched just with root, doesn't it.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Oh no - leave that then! LOL.

---------- Post added at 12:22 ---------- Previous post was at 12:15 ----------

I was coming to this next - could be a blacklisted IMEI due to the EFS you borked. May be worth giving support a call to see if it is blacklisted - you will be able, I'm sure, to confirm security details, etc with your provider.

They may be able to reset something at their end - if so, you will be good to go.

---------- Post added at 12:32 ---------- Previous post was at 12:22 ----------

try entering *#*#4636#*#* into your dialler

go to the section"set preferred network type:"

Select LTE/WCDMA

tap "RUN PING TEST"

See what results you get from the 3 things
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
So, called, told me it is indeed blacklisted and could do nothing about it.

After entering *#*#4636#*#* into the dialer nothing happens
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Not even as you're the legal owner? You are the legal owner, yes?
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
I bought it on a mobile shop.

They told me that the legal owner did not fully paid the phone, and they blacklisted it.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
I'm afraid there is probably nothing you can do now, as the previous owner had not paid their contract. You purchased the phone with the outstanding debt, which the provider has seen and therefore blacklisted the device. Speak with the shop you purchased the phone from.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
Researching the internet, looks like there are online services that can unlock it, may be worth paying them instead of reclaiming on the shop and have to pay even more for a "repair"
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Search for free options

Research well before making any decision. Make sure you can be legally covered should things take an unexpected turn.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
Hm, looks like i can do some fancy stuff with .cert file, how do I get it? Gotta root for it?

If you know about those things, please let me know.

Ty :)

Edit:

Or.. can i use a random .cert file?

Edit2:

Found this: http://forum.gsmhosting.com/vbb/f922/samsung-galaxy-a5-2017-sm-a520f-cert-write-done-2200453/

Edit3: Found this also, it is in spanish, it is about tricking a box, with the cert and efs files too.

https://www.clangsm.com/forum/index.php?showtopic=439300

FINALEDIT: Nevermind, just gonna buy the MSL on a very cheap page:

https://www.samsungsimunlock.com/

After unlocking I will start waiting the 7 days and will keep you updated.

Ty :)
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Sorry I've not been available. Are you sure the 3rd option is good? It's a SIM unlock...not looked into it, but this would only allow another SIM to be used in the device. IMEI is tied to the device NOT the SIM
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
As I said I am going to unlock it via online service, none the less, I saw some videos about unlocking this phone inserting an "Unlocker SIM" like it was especial or something, but those were just random ones, i think, insert it then change network mode to 2g i guess GSM and magically it was unlocked, i don't trust in those anyways, and don't worry bro.

We are now passing that matter, gonna wait those seven days.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Well...good luck. I hope I helped along the way and that you learned a few things - I know I have.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
Yep, not the end of the journey pal, but if you want(insert something epic)

And Thank you c:

Also, thinking about it, you can cont on me, as if you are more active on the forum, ask me for help or for a tester for anything.

I don't worry on testing anything and bricking the phone as long as it helps others.

:D
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] darknmy:
I had the same issue yesterday. I tried to install TWRP and custom ROM for A5. Ended up with a brick. The only solution was to download the latest Official ROM XXU4 and install.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
:crying::crying:

Man, i just read about it, warranty on the phone was voided somewhere along the way, and looks like msl cannot be done with a voided warranty. D:

Is there a way to get it back to 0 unvoided?
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
Nope. Warranty void at point of flashing recovery. Warnings are there on every instruction when flashing. You signed up to that fully aware that warranty is lost. No software can restore knox to 0 because it is an e-fuse that gets burned out on the mainboard.

Only remedy....new mainboard which essentiallly is a new phone.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] Kauris:
Welp..

I have a new laboratory rat then.

Gonna buy a new phone.
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] moozer:
I would recommend the Moto G5 plus or the Nokia 5 if funds allow! All the best buddy
[Samsung Galaxy A3, A5, A7 (2017) Questions & Answe] jseyedanas:
A520f bricked ....problem in flash

My phone was working in android 6.0

then i made a flash of oreo 8.0

it was also working but when i tried to flash combination it was bricked

now whatever file i flash ..the flash stops at system

i triied with different firmware ....odin / z3x /octoplus/ chimera

all stuck at system flashing

all other files are flashing only system not flashing
[Samsung Galaxy S8 Questions and Answers] RamTheSecond:
So yesterday I updated from Nougat (not rooted) to Oreo. After I updated I had some issues with my SIM. Basically most of the time I get "Out of service/Not registered in the Network". The SIM is working fine in other Phones. Already tried a reformat (with Stock Recovery) did not help.

So can I just use Odin v3.12 and the S8 Nougat files and flash them?

Will it brick If I do it?

The Oreo Firmware (and my phone) has no carrier. (DBT, Germany)

Same goes for the Nougat Firmware.

Thanks :)

Phone Info:

- SM-G950F

- Exynos variant

- DBT (unbranded)
[Samsung Galaxy S8 Questions and Answers] StackOverflow13:
Yes you can use Odin to Flash back to N
[Samsung Galaxy S8 Questions and Answers] _llma:
Hi, in this case the Knox is altered? I was reading something about the new Oreo bootloader that would not allow the downgrade. Thank you and sorry for my English!
[Samsung Galaxy S8 Questions and Answers] StackOverflow13:
No the 950f is not effected it will not trip knox if you downgrade via odin
[Samsung Galaxy S8 Questions and Answers] _llma:
Thank you so much !!
[Samsung Galaxy S8 Questions and Answers] rizni:
i want to downgrade oreo to nougat, are you sure this will not trip knox

thank you
[Samsung Galaxy S8 Questions and Answers] Hansoliv:
Good day.

I have downgraded and knox is still 0x0.
[Samsung Galaxy S8 Questions and Answers] Bogeyof:
Was the phone reset or data was retained?
[Samsung Galaxy S8 Questions and Answers] Hansoliv:
Good day.

I reseted the my data.
[Samsung Galaxy S8 Questions and Answers] unbreakable360:
I've been having the same issue with my service I updated to Oreo via stock recovery with update zip in SD card...my question is, couldn't I just flash the downgrade through stock recovery as well? I don't have access to Odin of a laptop
[Samsung Galaxy S8 Questions and Answers] myabc:
can anyone link me a flashable italian firmware for s8 nougat? thanks
[Samsung Galaxy S8 Questions and Answers] Maltonator:
SM-G950F: https://www.sammobile.com/firmwares/galaxy-s8/SM-G950F/ITV/download/G950FXXU1AQK7/199473/
[Samsung Galaxy S8 Questions and Answers] myabc:
Downloaded. Thanks many thanks many
[Samsung Galaxy S8 Questions and Answers] myabc:
Please i try to flash with odin the 4 files on already oreo.... The odin software start to flash and in 2 seconds shows done and restart, but doesnt do anything. Can anyone help me? Thanks
[Samsung Galaxy S8 Questions and Answers] MKD73:
Mine fails instantly to , just come back to samsung from oneplus , and need to flash N , tried older odin but still fails.
[Samsung Galaxy S8 Questions and Answers] waffain:
Can I downgrade to nougat from oreo on samsung note 8 SM-N950U1 ?
[Samsung Galaxy S8 Questions and Answers] haygij:
Are the firmwares for G955F and G955FD the same?

My friend has the FD version with G955FXXU1CRB7 - CSC ILO (ISRAEL), but I can't find G955FXXU1AQK7 for the FD version for CSC ILO.

Can I use the firmware for the F variant with Odin?

He is having terrible battery issues with Oreo, wiped data using stock recovery but it won't help.
[Samsung Galaxy S8 Questions and Answers] WalterSilverio:
Downgrade from CRAP (8.0) to AQL5 (7.0) and now I have a DRK error and it automatically starts the recovery, some help?
[Samsung Galaxy S8 Questions and Answers] TrevorAshley:
You can't downgrade via odin. You can only flash the same firmware or higher.
[Samsung Galaxy S8 Questions and Answers] Bamablood94:
Can you downgrade SM G950U from Oreo nougat?
[Samsung Galaxy S8 Questions and Answers] spownie:
I got the same problem. I have a SM-G955 after updating to the new patch my connection did not work good. After restarting my phone i only get Out of service/Not registered in the*Network. The wifi is working on my phone but cant connect to my provider. I cant use my phone anymore. I already flash a older firmware but this did nothing. I dont know what to do at this point. I Think i wait for the new update maybe that Will help.
[Samsung Galaxy S8 Questions and Answers] HoriaRav:
I really don't like it when people provide minimal information on sensitive topics like this.. so here you go:

Oreo to Nougat downgrade on the G950f WORKS with no issues, it does not trip Knox.

What you should do:

- download the 7.0 firmware for the G950f, you can download it from Sammobile (make sure you download the one for your carrier and country)

- before doing anything, make sure you enable OEM Unlock in developer options - if you don't you will receive a DM-Verity error after you install the firmware (if you already did that just dowload Oreo firmware and flash it on the phone, it will work and start over)

- make sure you have the Samsung drivers installed on the computer

- After you downloaded and installed everything, Open Odin and load the firmware files in Odin - AP to AP, BL to BL, and so on - make sure you load all the files - I used the CSC file not the Home_CSC because I wanted to have a clean install

- Power off the phone, put it in download mode (Volume down + Bixby + Power) - when you see the blue screen press the volume up key

- connect the phone to the computer - make sure that Odin displays "Added" in the dialog box on the right side of the window

- Hit start and wait for the process to finish - do not interrupt the process - it should take 3-4 minutes

- After everything is completed odin should display a PASS message - when you see that you can disconnect the phone and wait for it to finish the installation and reboot

- DONE! - you are back on Nougat and everything works as it should :D
[Samsung Galaxy S8 Questions and Answers] toshibalaptop:
Hi, can you tell me where can I download Nougat for galaxy s8 sm-g950f? I cant find it.
[Samsung Galaxy S8 Questions and Answers] Shadyville01:
You can check it on Sammobile, I found mine there and downgraded. Working fine so far
[Samsung Galaxy S8 Questions and Answers] jjosip02:
I can t downgrade from oreo to nougat on my S7.

Can you please explain me how to downgrade from oreo to nougat?

I flashed UK BTU version of oreo to my S7 but found out that it eats battery af. I tried to flash my phone back to nougat but it keeps on failing. It constantly says on my phone "SW BOOTLOAD FAIL DEVICE: 1 BINARY: 0".

Should I try with older version of Odin and then flash it to nougat or what? I am annoyed of it eating all of my battery. I really don t know how to do this. I ll be really grateful if you explain this to me and help me fix it returning to nougat.

BTW I m from Croatia if that helps you a bit but...

:crying:
[Samsung Galaxy S8 Questions and Answers] Njorr:
You said that one should make use of all the file types (AP, BL, CSC). I downgraded from LOS 7.1 or so to my stock 7.0 Samsung S6 firmware, which worked ... after many tries and many soft bricks. The problem was that the firmware, or I think the Security Patch Level thereof, I flashed with Odin wasn't as new as the one from the custom rom.

I somehow managed to find an according firmware that finally solved the soft brick. Now after a while I made the mistake to flash Resurrection Remix 8.1.0 and it isn't stable enough as a daily driver so I want to flash back to stock Nougat with Odin.

However, I'm on Oreo now and my Security Patch Level is on April 5, 2018, the latest one of the stock firmware is April first I think. Furthermore I know I flashed only 1 file in Odin in order to get back my stock firmware (AP).

So my question is, what do you mean by flashing 3 files, how could you select them individually? I know when I downloaded the stock firmware, it already contained AP, CP and CSC..? How should I proceed in order to downgrade to the stock Nougat firmware, is it even possible from my situation with Odin?
[Samsung Galaxy S8 Questions and Answers] hs102:
Have you sorted this issue out? I am having a similar problem
[Samsung Galaxy S8 Questions and Answers] jjosip02:
Yes I have. What country do you live? And what career fo you have
[Samsung Galaxy S8 Questions and Answers] hs102:
In the UK, on EE. I am currently on the Oreo software.
[Samsung Galaxy S8 Questions and Answers] jjosip02:
https://www.sammobile.com/firmwares/galaxy-s7/SM-G930F/EVR/download/G930FXXS2DRC3/213064/

If you flashed uk btu flash this on your s7, and is your s7 flat or edge and is it dual sim
[Samsung Galaxy S8 Questions and Answers] T0nyCr:
downgrade 2

Mine is TPA (S8+) Should I download this firmware:confused:
[Samsung Galaxy S8 Questions and Answers] jjosip02:
You cant get your country s firmware that you had because of the bootloader. Oreos bootloader is v2 and your countrys nougat has v1 bootloader and unfortunately you cant downgrade from bootloader v2 to v1 but you can flash another countrys nougat that is carrier free like uk s btu.
[Samsung Galaxy S8 Questions and Answers] T0nyCr:
3 quick questions

1. I suppose all I need is a Nougat firmware with v2 bootloader, right⁉️

2. If 1=true, dou you know witch other regions have Nougat bootloader v2⁉️

3. Once I choose the region I want, I should have to use Odin with CSC "erase data" file, rigth⁉️(Not HOME_CSC "keep data" file) [Repartition pit file]

Xnks❗
[Samsung Galaxy S8 Questions and Answers] hs102:
I actually have the S8 rather than the S7 - would the following file be the correct one to flash?

https://www.sammobile.com/firmwares/galaxy-s8/SM-G950F/XEU/download/G950FXXU1AQF7/172486/
[Samsung Galaxy S8 Questions and Answers] jjosip02:
I like flashed back and fourth from oreo to nougat 10 times and every time used CSC file, not CSC Home.

A lot of regions have nougat with bootloader v2, if you cant spot whether the firmware has bootloader v2 or v1 this is an example. When you see like G930FXXU1 and that number one represents bootloader v1, every oreo firmware now has bootloader v2, so you need to find a nougat firmware that has G930FXXU2 you flash it on your phone.

I think that will be it. If it wont work you can ask me the question every time.

---------- Post added at 11:12 AM ---------- Previous post was at 11:06 AM ----------
[Samsung Galaxy S8 Questions and Answers] T0nyCr:
There is a change if combine a nougat firmware with bootloader v2
[Samsung Galaxy S8 Questions and Answers] jjosip02:
You can try to combine oreos bl v2 and nougats ap, cp and csc. I dont know if thatll work, but if I was you I would stay with oreo.
[Samsung Galaxy S8 Questions and Answers] pwoolston:
Galaxy S8 Active

Im trying to root my Galaxy S8 Active SM-G892U any help would be great!
[Samsung Galaxy S8 Questions and Answers] Aspiranteh:
I have to install Nougat to get my IMEI back. I'm on android Oreo with V2 boot loader, but as they say in a previous comment on S8 there is no android Nougat with V2. However, on Samsung Galaxy S7 if you have Nougat with V2... Do you know/Who knows if I can install S7 Stock on my S8??

**If this is possible, when installing Nougat, the OEM unlock appears in developer options? or should I wait eight days?

Thank you!.
[Samsung Galaxy S8 Questions and Answers] SetUp07:
HI.. in my case it is Galaxy SM-G950U and I recently updated to Oreo 8.0 and my battery draining alot. though I disabled many of my apps and yet ! Now I have decided to downgrade from Oreo 8.0 to & Nougat but seems my system is not allowing me to do it huh. Someone said my binary 3 is preventing me from downgrading it. I don't know much about all these cell phone technologies lol ...your help would highly be appreictaed.

Thanks
[Samsung Galaxy S8 Questions and Answers] komsa:
Hello guys, is there any available nougat firmware with bootloader v2, cause i already updated to oreo with v2 and i would like to downgrade..... why are you talking about S7 in part of forum about S8 and make a ton of confusion?!?