Database Users

Can i install 935F stock rom on 935FD Device.

hello, i am from India. I recently bought a new Samsung Galaxy S7 Edge Duos. FEW DAYS AGO (ABOUT 2-3 DAYS) i updated it to latest version over OTA. I tried to root it by CF Auto root but something broke and it transferred my device in bootloop so i downloaded and flashed a stock rom G935FXXU1APB6_G935FOLB1APB6_XSP_FULL using Odin. My device started but i figured out that the rom is Singaporian version and its a March upgrade and i could not update it also. I am also having wifi connectivity issues. My old rom was perfect. It was preinstalled by Company. Please help me or please give me a link of my model's official stock rom rather than Sammobile ( i tried sammobile but my connection refuses and also speed too low )
UPDATE: Also my carrier works.......
PLzzzzzz Help......
Device specifications
Model Number SM-G935FD
BASEBAND VERSION G935FXXU1APEQ
BUILD NUMBER MMB29K.G935FXXU1APB6

gurpreet4u15 said:
hello, i am from India. I recently bought a new Samsung Galaxy S7 Edge Duos. FEW DAYS AGO (ABOUT 2-3 DAYS) i updated it to latest version over OTA. I tried to root it by CF Auto root but something broke and it transferred my device in bootloop so i downloaded and flashed a stock rom G935FXXU1APB6_G935FOLB1APB6_XSP_FULL using Odin. My device started but i figured out that the rom is Singaporian version and its a March upgrade and i could not update it also. I am also having wifi connectivity issues. My old rom was perfect. It was preinstalled by Company. Please help me or please give me a link of my model's official stock rom rather than Sammobile ( i tried sammobile but my connection refuses and also speed too low )
UPDATE: Also my carrier works.......
PLzzzzzz Help......
Device specifications
Model Number SM-G935FD
BASEBAND VERSION G935FXXU1APEQ
BUILD NUMBER MMB29K.G935FXXU1APB6
Click to expand...
Click to collapse
Download this and Flash I was on latest version rooted flashed this and got all the latest updates..
PS : I am using s7 Edge SM-G935FD

[email protected] said:
Download this and Flash I was on latest version rooted flashed this and got all the latest updates..
PS : I am using s7 Edge SM-G935FD
Click to expand...
Click to collapse
Tx vry much for help but can you give a link rather than sammobile

gurpreet4u15 said:
hello, i am from India. I recently bought a new Samsung Galaxy S7 Edge Duos. FEW DAYS AGO (ABOUT 2-3 DAYS) i updated it to latest version over OTA. I tried to root it by CF Auto root but something broke and it transferred my device in bootloop so i downloaded and flashed a stock rom G935FXXU1APB6_G935FOLB1APB6_XSP_FULL using Odin. My device started but i figured out that the rom is Singaporian version and its a March upgrade and i could not update it also. I am also having wifi connectivity issues. My old rom was perfect. It was preinstalled by Company. Please help me or please give me a link of my model's official stock rom rather than Sammobile ( i tried sammobile but my connection refuses and also speed too low )
UPDATE: Also my carrier works.......
PLzzzzzz Help......
Device specifications
Model Number SM-G935FD
BASEBAND VERSION G935FXXU1APEQ
BUILD NUMBER MMB29K.G935FXXU1APB6
Click to expand...
Click to collapse
Did the 935F rom worked perfectly? Please upload your about phone screenshot

Dewang rocky said:
Did the 935F rom worked perfectly? Please upload your about phone screenshot
Click to expand...
Click to collapse
Here's the screenshots.....
Plzz help

gurpreet4u15 said:
Tx vry much for help but can you give a link rather than sammobile
Click to expand...
Click to collapse
Sorry I don't have any other link

[email protected] said:
Sorry I don't have any other link
Click to expand...
Click to collapse
It's ok dude atleast you helped

gurpreet4u15 said:
i downloaded and flashed a stock rom G935FXXU1APB6_G935FOLB1APB6_XSP_FULL using Odin.
Click to expand...
Click to collapse
A bit silly question but have you tried installing from Smart Switch? You mentioned Odin so that didn't look promising...
Try recovery from Smart Switch.

gurpreet4u15 said:
Here's the screenshots.....
Plzz help
Click to expand...
Click to collapse
I have 935FD i havr still not tried 935F rom on it,but seems like you have flashed FD in your S7 edge

Dewang rocky said:
I have 935FD i havr still not tried 935F rom on it,but seems like you have flashed FD in your S7 edge
Click to expand...
Click to collapse
Official ROMs for F & FD models are same...

p2kin said:
Official ROMs for F & FD models are same...
Click to expand...
Click to collapse
Oh thanks,am planning to flash afgan F on my indian FD

I did it on G935FD UAE version. I flashed with G935F UK version, alll is perfect!

troxter said:
I did it on G935FD UAE version. I flashed with G935F UK version, alll is perfect!
Click to expand...
Click to collapse
can you guide me on step to flash? did you do a factory reset before/after flashing? thanks

madkhaz said:
can you guide me on step to flash? did you do a factory reset before/after flashing? thanks
Click to expand...
Click to collapse
Download and install USB drivers for Samsung Galaxy S7 edge in your computer.
Make sure to take backup of any important files on your smartphone.
Enable USB debugging option by pressing Menu > Settings > Applications. Navigate and tap on Developer Options to ensure that USB Debugging is enabled.
Ensure that your Galaxy S7 edge carries more than 70% of charge.
Highly Credible Leak Points At Early Samsung Galaxy S7 Launch Date
Unzip Odin on your computer and install it.
Unzip firmware zip file in the same folder as Odin.
Switch your Samsung Galaxy S7 edge off and boot it in Download mode: press and hold Volume Down and Power together and then press the Home key. OR, check how to enter Download Mode.
Open Odin and connect your smartphone with your computer. When connected successfully, one of the ID:COM boxes will turn yellow with the COM port number after a while. (In case you don’t get it, try another USB port. If that doesn’t help either, then re-install USB drivers).
On your Odin, select files:
Click on AP and select file with AP in its name.
Click on CP and select file with MODEM in its name – ignore if you didn’t get any such file.
Click on CSC and select file with CSC in its name – ignore if you didn’t get any such file.
Click on PIT and select the. pit file – ignore if you didn’t get any such file.
Click on BL and select file with BL in its name – ignore if there is no such file.
Make sure to check Auto Reboot and F.Rest Time. Check Re-Partition only if you selected the. pit file.
Click on Start to initiate the update process.
When Android 6.0.1 Marshmallow update installation is successfully completed, you will get a PASS message.
I don't know if factory reset is necessary after flash, but I did it, just in case. I attached Odin which I used.

p2kin said:
A bit silly question but have you tried installing from Smart Switch? You mentioned Odin so that didn't look promising...
Try recovery from Smart Switch.
Click to expand...
Click to collapse
What's the difference ??

gurpreet4u15 said:
What's the difference ??
Click to expand...
Click to collapse
Unless you know what you are doing and about files source/files you are flashing, then not much.. but if you are not sure, then Smart Switch can download official f/w for your specific model & flash it for you.. simplest, no brainer to recover to official f/w.

p2kin said:
Unless you know what you are doing and about files source/files you are flashing, then not much.. but if you are not sure, then Smart Switch can download official f/w for your specific model & flash it for you.. simplest, no brainer to recover to official f/w.
Click to expand...
Click to collapse
Okk Tx dude......

Official Android 7.0
Hi
I have G935FD device, which I recently bought (the second hand one).
I notice that I have issue with GPRS data transfer... it looks like, from time to time when GPRS is active SMS sending is not possible any more (up to next power OFF of device) .
At that time I'm able to see only one GPRS range indicator.
I'm able to receive calls from both SIM cards.
I did not check am I able to call from both of them.
According to my google investigations issue is pressent in Android 6.0, which I have right now.
Case shall be easy, I need to update to Nugat verision and it is all , but...
1) If I'll check firmware update on my mobile I have inforamtion that it is the latest version of firmware G935FXXU1APD1// G935FXXU1APB6. what is not true
2) I started to looking for official Android 7.0 version. to get it, I have to have CSC code. Phone info application have cleared out all CSC code. *#1234# don't work - "error message connection error or wrong MMI code".
Device type is hero2lte
Product name is hero2ltexx
Product code is SM-G935FZSU - this looks like oryginal information .
Bootloader : G935FXXU1APB6
PDA Version: G935FXXU1APD1
Baseband Version" G935FXXU1APB6
CSC Version :
Kernel Version
3.18.14-7538748
[email protected]#1
64-bit
knox warrantz void: 0x0
Does any one know what can be the oryginal CSC code for such device?
Can you tell me where can I find oryginal Android 7.0 which will works fine in Poland ?
Thanks in advance.
Hi
Below information for anyone who have the same issue as I.
I download the newest official ROM for Android 7.0 for Poland (G935FXXS1DQHI).
I used ROM for single sim, not dual sim.
Since that I don't have any issue with SMS or GPRS any more.
MMI codes started to work back.
I still have dual sim .
Simple , now it works better !!

I got a used GT-935T phone very recently in India, which was still running android 6.0. On browsing these forums, I found out that we could flash stock rom on it without rooting, so I did so using Odin. I flashed the stock rom of Android 7.0 for t-mobile 935T, which was what my phone was supposed to be.
On further browsing, I also discovered, that we could flash any stock rom on the phone, irrespective of the region. So I decided to download the latest stock rom for India 935fd. I did so, but whenever I'm trying to flash it using Odin, I'm getting an error - repartition failed.
I've not checkd the repartition option.
can someone help me?

Hi.
I am using 935F single sim THL csc mobile
I want to change it to IND csc.
Is their any possible solution.
I need voWifi its only available in indian csc.
Also i am staying in india.
My present mobile details are as below.
Product Code: SM-G935FZKAINS
PDA: G935FXXS8ETC7
CSC: G930FODD5ESE1
Baseband: G935FXXS8ETC7
Bootloader: G935FXXS8ETC7
Single sim 935F. Android version 8.0.0

Big big problem!

Hello everybody I'm new here. Please accept my apologies if this isn't the right thread section.
I have a big problem with my Samsung s7 edge at&t. I live at the moment in Europe and as you know I can't update my telephone. Is there a way to update my mobile? Thank you in advance and I have to warn you I'm not really into rooting etc etc but I must learn cause I want to get rid of this problem.
Thanks again

Darklight_93 said:
Hello everybody I'm new here. Please accept my apologies if this isn't the right thread section.
I have a big problem with my Samsung s7 edge at&t. I live at the moment in Europe and as you know I can't update my telephone. Is there a way to update my mobile? Thank you in advance and I have to warn you I'm not really into rooting etc etc but I must learn cause I want to get rid of this problem.
Thanks again
Click to expand...
Click to collapse
What firmware are you on? and which region?When i bought my phone i had the notification saying i needed to update. Are you sure you aren't on the latest update already?

Darklight_93 said:
Hello everybody I'm new here. Please accept my apologies if this isn't the right thread section.
I have a big problem with my Samsung s7 edge at&t. I live at the moment in Europe and as you know I can't update my telephone. Is there a way to update my mobile? Thank you in advance and I have to warn you I'm not really into rooting etc etc but I must learn cause I want to get rid of this problem.
Thanks again
Click to expand...
Click to collapse
Welcome to XDA. This is not Facebook. Use a clear and explanatory title. We don't need clickbait here.

Settings -> about device -> software info -> baseband version. Here u can see name of your build. Now go to sam mobile.com -> firmware -> write SM-g935f -> find latest nt&t build. If it is the same, u have the latest. If it's not, you can use odin.

The firmware should be the latest 6.0.1 but the Android security patch level is May...
fureedx said:
What firmware are you on? and which region?When i bought my phone i had the notification saying i needed to update. Are you sure you aren't on the latest update already?
Click to expand...
Click to collapse

Kubas_inko_CZ said:
Settings -> about device -> software info -> baseband version. Here u can see name of your build. Now go to sam mobile.com -> firmware -> write SM-g935f -> find latest nt&t build. If it is the same, u have the latest. If it's not, you can use odin.
Click to expand...
Click to collapse
I checked that and indeed is different. What should I do with Odin?

1. Download the newest firmware.
2. Download odin.
3. Unpack the zip file, don't touch the tar.md5 file.
4. Take that home.tar.md5 file and put it into PDA or HOME not sure which one newet odin has.
5. Reboot Your phone using vol down + home + power, now when You see a blueish screen press vol up to confirm, and then plug Your phone into Your computer.
6. Tap on Start on Your computer and wait until it finishes
Note: I'd recommed You to backup the data that You have on Your phone, Odin shouldn't format data nor internal storage but just in case it's better to be safe .

ProtoDeVNan0 said:
1. Download the newest firmware.
2. Download odin.
3. Unpack the zip file, don't touch the tar.md5 file.
4. Take that home.tar.md5 file and put it into PDA or HOME not sure which one newet odin has.
5. Reboot Your phone using vol down + home + power, now when You see a blueish screen press vol up to confirm, and then plug Your phone into Your computer.
6. Tap on Start on Your computer and wait until it finishes
Note: I'd recommed You to backup the data that You have on Your phone, Odin shouldn't format data nor internal storage but just in case it's better to be safe .
Click to expand...
Click to collapse
I can't find the model number of my telephone on the website you have suggested me... The model number is SM-G935A

No worries. Found it for You .
Link 1: http://www.sammobile.com/firmwares/download/102653/G935R4TYU4API5_G935R4USC4API5_USC/
This one is official but it's like universal USA firmware.
Link 2:
http://forum.xda-developers.com/att-s7-edge/how-to/firmware-att-s7-edge-g935a-official-t3412312
This one is for Your model. After flashing it You should get an update to get newest security patch.
First try the second link since it's the firmware made exactly for Your model .

I heard have verion tmobile or Verizon can install world rom and update OTA.

ProtoDeVNan0 said:
No worries. Found it for You .
Link 1: http://www.sammobile.com/firmwares/download/102653/G935R4TYU4API5_G935R4USC4API5_USC/
This one is official but it's like universal USA firmware.
Link 2:
http://forum.xda-developers.com/att-s7-edge/how-to/firmware-att-s7-edge-g935a-official-t3412312
This one is for Your model. After flashing it You should get an update to get newest security patch.
First try the second link since it's the firmware made exactly for Your model .
Click to expand...
Click to collapse
thank you very much

The problem now is how to install Odin on my macbook. I read that I need also to install this Heimdall file but it gives me an error and doesn't complete the installation.... Anyone can help me out with this?

Darklight_93 said:
Hello everybody I'm new here. Please accept my apologies if this isn't the right thread section.
I have a big problem with my Samsung s7 edge at&t. I live at the moment in Europe and as you know I can't update my telephone. Is there a way to update my mobile? Thank you in advance and I have to warn you I'm not really into rooting etc etc but I must learn cause I want to get rid of this problem.
Thanks again
Click to expand...
Click to collapse
Have You tried to use smart switch ?

Galaxy J3 (6) unknown if I bricked it

I bought this phone at an auction, picked it up and when I got home found it had FRP on it. I went to use a program to take the FRP but unfortunately, I forgot to choose the correct model number and used the default SC-01C. Now I get an error when I turn on the phone, "Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again". I had to take the battery out to find what the exact model and it's SM-J320H/DS. This model only has firmware from Europe (Germany, Ukraine), Africa and Asia. Can I use another firmware within the same model? For example, right now I'm downloading SM-J320M. Will this work on this phone?

No it won't. You will brick your device forever and then you can throw it at the bin. Always flash firmware corresponding to your model. Flash the germany version for j320h because less bloat. Again, FLASH FIRMWARE CORRESPONDING TO YOUR MODEL OR IT WILL BRICK FOREVER.

FrostOnXDA said:
No it won't. You will brick your device forever and then you can throw it at the bin. Always flash firmware corresponding to your model. Flash the germany version for j320h because less bloat. Again, FLASH FIRMWARE CORRESPONDING TO YOUR MODEL OR IT WILL BRICK FOREVER.
Click to expand...
Click to collapse
Thank you for the warning. Will the German version have English in it?

Of course! For example if you flash russian you will have english too! All firmwares are multi-lingual.

FrostOnXDA said:
Of course! For example if you flash russian you will have english too! All firmwares are multi-lingual.
Click to expand...
Click to collapse
Nice, thank you .

dm-verification faild

When I go to recovery I get this info:
Dm-verify verification faild
Need to check DRK first..
I have flashed firmware and I get this info,
What is the best way to solve this,I read try to found on google but no one give the answer hot to fix this problem ..
Should I try to install another firmware?

no one have an idea how to fix this, I am waithing fort a week for someone to help me..

jjoeshua said:
no one have an idea how to fix this, I am waithing fort a week for someone to help me..
Click to expand...
Click to collapse
According with your model - you may try to download "4 files firmware repair" and flash with Odin. - this is an example, search for you model!!!
You may try Smart Switch for PC - it's a Samsung program which will help you restore the last original stock firmware according with your phone S/N (located under the battery).
Hoping that there is no emmc failure...

When I download this 4 files I flash one by one tru Odin or all files put together in odin?
My model is sm-n910t, tmobile, can I downlaod and flash other sm-n910f clean, without provider?

jjoeshua said:
When I download this 4 files I flash one by one tru Odin or all files put together in odin?
My model is sm-n910t, tmobile, can I downlaod and flash other sm-n910f clean, without provider?
Click to expand...
Click to collapse
Mate, I don't advise to flash the 910F model, as it may break some features which are dedicated to your 910T model. SO better try the 910T repair files. Ans yes, all of them in the same time - your check the boxes in Odin and the phone will be flashed one after the other. Odin knows the order.
BUT!!! As I said before - try first with Smart Switch - https://forum.xda-developers.com/showpost.php?p=70652492&postcount=10
I believe you have more chances to get it done this way faster and cleaner.
Also (disclaimer) - as you will do all this on your risk, please search and read a lot before.

I download and flash through Odin latest firmware that i found, security update is from 1 july 2017..
Than I try to install TWRP
I also try to root with CF auto root
And after all this its the same,nothing of this not solve the problem..
I have bad and old Pc, and computer wont install and open Smart Switch.
First thing when I found better PC is that I will try with Smart Switch and if that not help me the last option is to flash that 4 files that you give me link..

w41ru5 said:
According with your model - you may try to download "4 files firmware repair" and flash with Odin. - this is an example, search for you model!!!
You may try Smart Switch for PC - it's a Samsung program which will help you restore the last original stock firmware according with your phone S/N (located under the battery).
Hoping that there is no emmc failure...
Click to expand...
Click to collapse
I have problem with downloading these 4 files
Can you help me...
When I try to download ,it says that I need premium acount,but I dont have money buy it..
Is there any other site that I can download these 4 repair files..

jjoeshua said:
I have problem with downloading these 4 files
Can you help me...
When I try to download ,it says that I need premium acount,but I dont have money buy it..
Is there any other site that I can download these 4 repair files..
Click to expand...
Click to collapse
Sorry, I can't help. But why don't you go to search and read on the 910T forum - https://forum.xda-developers.com/note-4-tmobile

w41ru5 said:
Sorry, I can't help. But why don't you go to search and read on the 910T forum - https://forum.xda-developers.com/note-4-tmobile
Click to expand...
Click to collapse
Ok thx! I will try.
I found laptop from my friend ,install smart switch and i get info that i have update ,so I downlaod and update phone.
It still 6.0.1 but security update is from 1 avgust 2017. Now when I,go to option about phone softwere update it says device is up to date.
Finally I have install the latest stock version.
But problem with dm verify verification is still there.. smart switch not fix that..
But now I now that if Maybe get someday again update I will install it try amart switch..
Thx for help ,and sorry for bothering you with some stupid questions. .

jjoeshua said:
Ok thx! I will try.
I found laptop from my friend ,install smart switch and i get info that i have update ,so I downlaod and update phone.
It still 6.0.1 but security update is from 1 avgust 2017. Now when I,go to option about phone softwere update it says device is up to date.
Finally I have install the latest stock version.
But problem with dm verify verification is still there.. smart switch not fix that..
But now I now that if Maybe get someday again update I will install it try amart switch..
Thx for help ,and sorry for bothering you with some stupid questions. .
Click to expand...
Click to collapse
Hey man, no problem, happy to share knowledge (as little as it is ), learn and help. This is XDA about.

¿Method for downgrade Pie to Oreo?

Hi all
I am a guy from Spain and I am using Google translator, I hope all understand all me well.
I have an S8+ updated to Android Pie and after testing it several days I did not like it.
I tried to install Oreo using Odin but it gives me an error.
Searching for information, I found I can not do downgrade because of a binary boot number.
is there another method to install stock Oreo rom? Could it by root?
I never performed root, i'm noob.
I would appreciate any help. Thanks and best regards

VanderMirch said:
Hi all
I am a guy from Spain and I am using Google translator, I hope all understand all me well.
I have an S8+ updated to Android Pie and after testing it several days I did not like it.
I tried to install Oreo using Odin but it gives me an error.
Searching for information, I found I can not do downgrade because of a binary boot number.
is there another method to install stock Oreo rom? Could it by root?
I never performed root, i'm noob.
I would appreciate any help. Thanks and best regards
Click to expand...
Click to collapse
Do you have the newest Odin version?
Have you ever tried it on another computer?
Have you ever tried it with a 4tlg.Firmware? (Download with SamFirm)

bininga59 said:
Do you have the newest Odin version?
Have you ever tried it on another computer?
Have you ever tried it with a 4tlg.Firmware? (Download with SamFirm)
Click to expand...
Click to collapse
Hi.
Yes, the latest version of Odin: Odin3-v3.13.1
Yes, 1 pc with Windows 7 and another with Windows 10.
I've never tried a 4tlg.Firmware, I do not even know what it is.
As I commented in the messenge I read that odin can not be downgrade because it changes a binary number of the boot between Pie and Oreo ¿not? (or something like that happens).
Thank you very much for the reply.

VanderMirch said:
Hi.
Yes, the latest version of Odin: Odin3-v3.13.1
Yes, 1 pc with Windows 7 and another with Windows 10.
I've never tried a 4tlg.Firmware, I do not even know what it is.
As I commented in the messenge I read that odin can not be downgrade because it changes a binary number of the boot between Pie and Oreo ¿not? (or something like that happens).
Thank you very much for the reply.
Click to expand...
Click to collapse
Example picture for the download of a 4tlg.Firmware

bininga59 said:
Example picture for the download of a 4tlg.Firmware
Click to expand...
Click to collapse
Downloading the firmware, when are you downloaded what should I do? Is that firm Pie not?
Previously I tried to install by Odin the latest Oreo firmware para mi S8+ downloaded from Sammobile and alwais error.
Thanks.

VanderMirch said:
Downloading the firmware, when are you downloaded what should I do? Is that firm Pie not?
Previously I tried to install by Odin the latest Oreo firmware para mi S8+ downloaded from Sammobile and alwais error.
Thanks.
Click to expand...
Click to collapse
You look at Sammobile which version it is
9 = pie
8 = Oreo

bininga59 said:
You look at Sammobile which version it is
9 = pie
8 = Oreo
Click to expand...
Click to collapse
9 = pie
https://www.sammobile.com/firmwares/galaxy-s8-plus/SM-G955F/PHE/download/G955FXXS4DSC2/262051/

VanderMirch said:
9 = pie
https://www.sammobile.com/firmwares/galaxy-s8-plus/SM-G955F/PHE/download/G955FXXS4DSC2/262051/
Click to expand...
Click to collapse
Yes, G955FXXS4DSC2 = Pie

bininga59 said:
Yes, G955FXXS4DSC2 = Pie
Click to expand...
Click to collapse
Is it valid to downgrade Oreo?

VanderMirch said:
Is it valid to downgrade Oreo?
Click to expand...
Click to collapse
Who has something against it?

bininga59 said:
Who has something against it?
Click to expand...
Click to collapse
I do not understand you, sorry

VanderMirch said:
I do not understand you, sorry
Click to expand...
Click to collapse
You asked, Is it valid to downgrade Oreo?
I do not mind

Can someone help me please?

VanderMirch said:
Can someone help me please?
Click to expand...
Click to collapse
In the firmware name you download the binary number ( bootloader version ) is the fifth (5) number from the right. In your case 4 is your binary number.
Eg: G955FXXS4CRLB - 4 is the binary(bootloader) number. You can only flash version 4 or higher not 3 or lower.
Download firmware from.sammobil or.updato
Eg: G955FXXS4CSB1 ( PHE ) is Oreo Feb release.
Don't know if your on carrier firmware or not?
Unzip downloaded firmware using 7zip,WinRAR or any zip program that supports lz4 compression ratio. There will be 5 files.
Note: It is recommended to a clean install when downgrading so do a backup first.
1. In Odin from the extracted files place:
BL in BL section
CP in CP section
AP in AP section
CSC in CSC section - use the CSC file not the Home CSC file. This will do a clean install same as a factory reset.Wait for Odin to load files
2. Put phone in download mode and connect to PC
3. When Odin see's the phone then hit the start button.
4. When finished phone should reboot then run through the setup and restore your backups.

spawnlives said:
In the firmware name you download the binary number ( bootloader version ) is the fifth (5) number from the right. In your case 4 is your binary number.
Eg: G955FXXS4CRLB - 4 is the binary(bootloader) number. You can only flash version 4 or higher not 3 or lower.
Download firmware from.sammobil or.updato
Eg: G955FXXS4CSB1 ( PHE ) is Oreo Feb release.
Don't know if your on carrier firmware or not?
Unzip downloaded firmware using 7zip,WinRAR or any zip program that supports lz4 compression ratio. There will be 5 files.
Note: It is recommended to a clean install when downgrading so do a backup first.
1. In Odin from the extracted files place:
BL in BL section
CP in CP section
AP in AP section
CSC in CSC section - use the CSC file not the Home CSC file. This will do a clean install same as a factory reset.Wait for Odin to load files
2. Put phone in download mode and connect to PC
3. When Odin see's the phone then hit the start button.
4. When finished phone should reboot then run through the setup and restore your backups.
Click to expand...
Click to collapse
It has worked! Yeah! It was as you explained.
The problem I had was that I was getting a firmware with the binary number 3 because it was the last one in SamMobile for the normal S8 + (SM-G955F), to download the one you put me in, I searched for the S8 + dual sim (SM- G955FD).
Updato has very slow downloads, three days to download the firmware.
¡I thank you very much for the help! Without you I would not have achieved it.
:good::good: :highfive:

please tell..
VanderMirch said:
It has worked! Yeah! It was as you explained.
The problem I had was that I was getting a firmware with the binary number 3 because it was the last one in SamMobile for the normal S8 + (SM-G955F), to download the one you put me in, I searched for the S8 + dual sim (SM- G955FD).
Updato has very slow downloads, three days to download the firmware.
¡I thank you very much for the help! Without you I would not have achieved it.
:good::good: :highfive:
Click to expand...
Click to collapse
Hello bro , I read your all posts, I also want to roll back I also know every steps, but now I want to hear from you " If all the apps working Ok ?? Like samsung pay and samsung health etc. ?? KNOX is 0*0 or 0*1 ??

jayeshbsoni said:
Hello bro , I read your all posts, I also want to roll back I also know every steps, but now I want to hear from you " If all the apps working Ok ?? Like samsung pay and samsung health etc. ?? KNOX is 0*0 or 0*1 ??
Click to expand...
Click to collapse
Hi bro.
Yes, all apps work correctly: Samsung Pay and samsung health perfectly and all the others.
My case is with Spain PHE firmware.
The Knox is 0 * 0, using official stock firmwares the Knox never rises.
After returning to Oreo, remember to freeze the software update process so that it does not search or update again to Pie. You have to do it by adb
If you continue with doubts, you ask me

And the files downloaded from Updato and Sanmobile are stock? I have S8 and want to downgrade from Pie to Oreo, I have G950FXXS5DSF1 bootloader 5, the oreo files are with bootloader 4 (not 100%), can I do this downgrade? or it will get bricked? knox tripped?

rilley said:
And the files downloaded from Updato and Sanmobile are stock? I have S8 and want to downgrade from Pie to Oreo, I have G950FXXS5DSF1 bootloader 5, the oreo files are with bootloader 4 (not 100%), can I do this downgrade? or it will get bricked? knox tripped?
Click to expand...
Click to collapse
Hello.
I'm afraid you can not download the version because it's a 5 and Oreo only has up to 4.
Maybe I can install a version of Pie 4 and then download it to Oreo 4, but I'm not sure about it.

Hi, did you make it? Did it help?