Database Info

ROLLBACK FROM 7.0 TO 6.0.1 (G920F - ThreeUK)

OK guys, I've got a slight dilemma, I'll try and keep it short as possible but I cannot find any solution online as of yet..
I have been trying to resolve an issue with my partners S6 (G920F on ThreeUK) in which it keeps randomly freezing then rebooting (sometimes not rebooting!). At least 15-20 times a day.
It's already been repaired once by Samsung because of main board failure, and that was an absolute nightmare.(.basically took 2months and WE had to chase them up for it!)
Anyway, I've done all the noob stuff (factory reset, ALL WIPES, Odin flash the original FW it came with which I got from Sammoble..)
Correct me if I'm wrong but if it was software issue causing these hard reboots/freezes I'm sure one of the above processes would've eliminated it?
So. Last option was to flash Nougat via Odin, although it wasn't the Three branded one but the XEU UK one, I really had hoped this would've sorted it.
Nope.
Still freezing. Defo hardware yeah?
So now she wants to send it for second repair.
My concern is that I've flashed a non-brand FW on it, and it ODIN won't let me flash the original 6.0.1 back!!! (Locked bootloader I'm guessing???)
I really need to make sure (by Tues) that the phone is back to how it came as if they see that the FW doenst match up (also, the Three branded 7.0 hasn't been released yet!)
I've seen about an 'OEM UNLOCK' option in some S6 FW's..which would technically enable me to roll back....but XEU doesn't have this in dev options.
I hope someone can help. Sorry for the long post but I feel the details are necessary.
match

match_stick said:
OK guys, I've got a slight dilemma, I'll try and keep it short as possible but I cannot find any solution online as of yet..
I have been trying to resolve an issue with my partners S6 (G920F on ThreeUK) in which it keeps randomly freezing then rebooting (sometimes not rebooting!). At least 15-20 times a day.
It's already been repaired once by Samsung because of main board failure, and that was an absolute nightmare.(.basically took 2months and WE had to chase them up for it!)
Anyway, I've done all the noob stuff (factory reset, ALL WIPES, Odin flash the original FW it came with which I got from Sammoble..)
Correct me if I'm wrong but if it was software issue causing these hard reboots/freezes I'm sure one of the above processes would've eliminated it?
So. Last option was to flash Nougat via Odin, although it wasn't the Three branded one but the XEU UK one, I really had hoped this would've sorted it.
Nope.
Still freezing. Defo hardware yeah?
So now she wants to send it for second repair.
My concern is that I've flashed a non-brand FW on it, and it ODIN won't let me flash the original 6.0.1 back!!! (Locked bootloader I'm guessing???)
I really need to make sure (by Tues) that the phone is back to how it came as if they see that the FW doenst match up (also, the Three branded 7.0 hasn't been released yet!)
I've seen about an 'OEM UNLOCK' option in some S6 FW's..which would technically enable me to roll back....but XEU doesn't have this in dev options.
I hope someone can help. Sorry for the long post but I feel the details are necessary.
match
Click to expand...
Click to collapse
All international (g920F) variants have their bootloaders unlocked, so you don't need to go through any process for that. What I will say though is newer bootloaders, Samsung implement something in them that prevents downgrade from one os version to another.
But alas as aslong your knox counter is intact (meaning you haven't rooted) having a different firmware on there shouldn't stop them from attempting to repair the phone.
P.s try installing the 3 branded nougat firmware.

sofir786 said:
All international (g920F) variants have their bootloaders unlocked, so you don't need to go through any process for that. What I will say though is newer bootloaders, Samsung implement something in them that prevents downgrade from one os version to another.
But alas as aslong your knox counter is intact (meaning you haven't rooted) having a different firmware on there shouldn't stop them from attempting to repair the phone.
P.s try installing the 3 branded nougat firmware.
Click to expand...
Click to collapse
Ah ok. Unfortunately I am unable to roll back meaning the phone is stuck with an international unbranded firmware, which I'm hoping Samsung will not pick up on...another big giveaway is that there is no '3' logo boot animation as you would get with the 3 branded FW.
If only the 3 Nougat was out that would be my next step but typical of Three, they take the longest to release the newest update...so unless they release it before Tues morning then the phone will be sent off with the unbranded FW. hopefully you are right in saying that it shouldn't effect any warranty issues etc...

match_stick said:
Ah ok. Unfortunately I am unable to roll back meaning the phone is stuck with an international unbranded firmware, which I'm hoping Samsung will not pick up on...another big giveaway is that there is no '3' logo boot animation as you would get with the 3 branded FW.
If only the 3 Nougat was out that would be my next step but typical of Three, they take the longest to release the newest update...so unless they release it before Tues morning then the phone will be sent off with the unbranded FW. hopefully you are right in saying that it shouldn't effect any warranty issues etc...
Click to expand...
Click to collapse
If it's going straight to Samsung then aslong as knox is intact they won't care it has an unbranded firmware, the only thing that would stop them would be a phone which has been rooted, so I'm sure there shouldn't be any issues with this.

sofir786 said:
If it's going straight to Samsung then aslong as knox is intact they won't care it has an unbranded firmware, the only thing that would stop them would be a phone which has been rooted, so I'm sure there shouldn't be any issues with this.
Click to expand...
Click to collapse
Knox is intact, all legit apart from the one time ODIN flash of XEU.

So you mean if I flash a different stock nougat on a g920t1 it will continue to boot up even with frp lock on? This prevents the phone from booting up witj official metro pcs nouhgat

sofir786 said:
If it's going straight to Samsung then aslong as knox is intact they won't care it has an unbranded firmware, the only thing that would stop them would be a phone which has been rooted, so I'm sure there shouldn't be any issues with this.
Click to expand...
Click to collapse
Ok. Took phone into Samsung Support shop to see if they can repair...
Half hour we get phone call saying to come back as they have discovered 'some interesting things..' (me, sh*tting myself...)
The tech guy says that the phone has the wrong software on
(me looking shocked..)
After explaining that the phone has been previously repaired by Carphone Warehouse, the tech guy said ' they shouldn't have taken it for repair as it was a 3UK branded phone, so they've obviously replaced mainboard and installed unbranded FW instead of 3 brand...
So. Don't think that they overlook anything like This, they knew exactly what happened. Odin flashing does void warranty.

match_stick said:
Ok. Took phone into Samsung Support shop to see if they can repair...
Half hour we get phone call saying to come back as they have discovered 'some interesting things..' (me, sh*tting myself...)
The tech guy says that the phone has the wrong software on
(me looking shocked..)
After explaining that the phone has been previously repaired by Carphone Warehouse, the tech guy said ' they shouldn't have taken it for repair as it was a 3UK branded phone, so they've obviously replaced mainboard and installed unbranded FW instead of 3 brand...
So. Don't think that they overlook anything like This, they knew exactly what happened. Odin flashing does void warranty.
Click to expand...
Click to collapse
No way really? I've had phones repaired from them before with different firmwares and it's been fine, I suppose it depends on the tech who's looking at it. What was the end result? Was they not willing to repair it?

sofir786 said:
No way really? I've had phones repaired from them before with different firmwares and it's been fine, I suppose it depends on the tech who's looking at it. What was the end result? Was they not willing to repair it?
Click to expand...
Click to collapse
End result is we've taken it back to Carphone Warehouse for second repair, which was recommended by Samsung guy as he believes they were the ones who flashed unbranded FW after main board replacement (even tho it was me but no one needs to know that lol)
If CarphWhs come back saying "can't touch it as FW doesn't match" then obviously we can argue that the phone came back with that FW from first repair...I can't imagine they will.suspect that my misses has Odin flashed her phone with odd FW...
Lesson learnt - I will not intervene or use ODIN unless it's on MY PHONE.
Ultimately I tried to fix it with Nougat flash, thinking that I could revert back to 6.0.1 three brand FW if that didn't fix issue.
It's funny to see the Samsung guy baffled at how this FW ended up on the phone, Carphone Warehouse can be the scapegoat for my errors hopefully

Phone came back. Fixed and with UNBRANDED nougat lol
Win win.

Wow I remember this problem lol

Buying galaxy S8+, changing ROM and CSC?

Hey, I am planning on buying galaxy s8+ (exynos version).
Since I will buy it aboard I want to be sure that I could change the ROM to an Israeli ROM (aka ILO), and getting OTA updates for it.
Anyway, I heard that in order to be able to receive OTAs, I must change the CSC as well- am I right?
If I am, how do I accomplish it? will it trip knox? is my deivce need to be rooted?
I also got a silly question- by changing ROM I can choose the Hebrew language, right?
Thank ya all! I have searched on XDA but most of the information is about the GS7E, and I am afraid that the procedure is different in each device.

YuvalHadXD said:
Hey, I am planning on buying galaxy s8+ (exynos version).
Since I will buy it aboard I want to be sure that I could change the ROM to an Israeli ROM (aka ILO), and getting OTA updates for it.
Anyway, I heard that in order to be able to receive OTAs, I must change the CSC as well- am I right?
If I am, how do I accomplish it? will it trip knox? is my deivce need to be rooted?
I also got a silly question- by changing ROM I can choose the Hebrew language, right?
Thank ya all! I have searched on XDA but most of the information is about the GS7E, and I am afraid that the procedure is different in each device.
Click to expand...
Click to collapse
Yes you can change your Rom(cdc code) to ILO since it is part of Multi csc code(OXM) and you won't trigger the Knox.
To get OTA, you have to remain "Official"! Meaning if you choose to modify your device(Root, etc..)
you cannot receive over the air updates, however you can flash it via TWRP.
The most important thing for you is, if you buy your device from Europe, that is Sim-Free, you must
make a minimum of 5 minutes voice call with an European Network SIM card or your device will be
Region Locked to Europe and you wouldn't be able to use it outside of Europe. If you are actually buying
from Europe, check your phone after the 5 minute voice call so that the "Region Lock" has been removed.
Good luck.

samteeee said:
Yes you can change your Rom(cdc code) to ILO since it is part of Multi csc code(OXM) and you won't trigger the Knox.
To get OTA, you have to remain "Official"! Meaning if you choose to modify your device(Root, etc..)
you cannot receive over the air updates, however you can flash it via TWRP.
The most important thing for you is, if you buy your device from Europe, that is Sim-Free, you must
make a minimum of 5 minutes voice call with an European Network SIM card or your device will be
Region Locked to Europe and you wouldn't be able to use it outside of Europe. If you are actually buying
from Europe, check your phone after the 5 minute voice call so that the "Region Lock" has been removed.
Good luck.
Click to expand...
Click to collapse
thank you alot!

YuvalHadXD said:
thank you alot!
Click to expand...
Click to collapse
You are welcome.

Does changing country firmware trip knox

Hi,
I am from India and I wish to buy a brand new S8+. But the cost from Samsung India is quite high than the same from ebay which is $150 lesser than the Samsung India Price. So,I am now planning to buy the device from ebay (I know that it is a genuine Original Samsung device because of the seller). This device is imported from middle east (Unlocked). Now my question is that, Once i bought the device from ebay and flash the official S8+ ROM of India (via Sammobile using ODIN), will such activity trip my Knox counter or will treat this as an unauthorized ROM. I need to use Samsung Pay and Knox features and wanted to keep my device intact (un-rooted and official).
NOTE: Since, I did not bought the device from Samsung India, I may not get the warranty from them; I am ok with that. What I care more is that. will flashing the official ROM of a country (in this case India) into a foreign device (which is from Middle east, that is knox safe) will trip the knox and make unusable to use Samsung pay and other security features? Will I get OTA of India firmware whenever there is an update? Shall I go ahead with this purchase from ebay and flash India ROM from Sammobile?
Please clarify.

No. Knox will stay 0x0.

yes to all your questions
My S8+ got from UAE ( firmware changed to India) just got an update yesterday, pay works, knox not tripped.

Nah it wont trip knox. It will be same as indian unrooted device.

Question Problem with flash rom from another country.

Hi how are you i'm having a problem flashing the rom, i use to have a galaxy s10e and remove the aro version of the rom, i'm from Argentina, and installed the dbt version that is from Germany because of the faster updates that in my country always come much latter. Now i'm doing exactly the same procedure with my s21+ and the flash process goes well but when i check the region of my rom stills says aro, what am i doing wrong, could the phone be region locked? I bought it from a carrier but they say the phone is unlocked, which is true because i put a sim card from other provider and work perfectly fine, my s10e i bought it directly from Samsung. Is there anything i'm missing? I understand that you can change rom a put a rom from another country but i don't know what else can i do. Hope i express myself correctly, thanks for any help you can give me and sorry if i post this in the wrong place i'm new in the forum.

pabloh888 said:
Hi how are you i'm having a problem flashing the rom, i use to have a galaxy s10e and remove the aro version of the rom, i'm from Argentina, and installed the dbt version that is from Germany because of the faster updates that in my country always come much latter. Now i'm doing exactly the same procedure with my s21+ and the flash process goes well but when i check the region of my rom stills says aro, what am i doing wrong, could the phone be region locked? I bought it from a carrier but they say the phone is unlocked, which is true because i put a sim card from other provider and work perfectly fine, my s10e i bought it directly from Samsung. Is there anything i'm missing? I understand that you can change rom a put a rom from another country but i don't know what else can i do. Hope i express myself correctly, thanks for any help you can give me and sorry if i post this in the wrong place i'm new in the forum.
Click to expand...
Click to collapse
Hi Mate
I had the same issue , on the S10 it was possible to do it as you mention , not any more , the region is locked , I finally changed but not thru flashing , i got lucky and i could use a phone dialer code to change it , there are 3 options you could try ( without root)
Check here , this option worked for me , careful it will factory reset your phone and in my case i could only use it 3 times...
Option 2 , another dialer code ( did not work for me) check here
And last option use a pay service SAMKEY

MAX 404 said:
Hi Mate
I had the same issue , on the S10 it was possible to do it as you mention , not any more , the region is locked , I finally changed but not thru flashing , i got lucky and i could use a phone dialer code to change it , there are 3 options you could try ( without root)
Check here , this option worked for me , careful it will factory reset your phone and in my case i could only use it 3 times...
Option 2 , another dialer code ( did not work for me) check here
And last option use a pay service SAMKEY
Click to expand...
Click to collapse
Many Thanks !!!!!!!!!!!!!!!!!!!
I changed my CSC to ZTO again using this method.

Snake said:
Many Thanks !!!!!!!!!!!!!!!!!!!
I changed my CSC to ZTO again using this method.
Click to expand...
Click to collapse
Great news mate
But which method?

I had to use Samkey on mine to change from carrier locked CSC to open unlocked CSC (TNL to PHN) and after that worked and I had 2 credits left I changed it again to my current carrier CSC, VDF. Worked fine.

g970n vs g970f

Hi all,
Yesterday I bought an S10e under the impression that it is sm-g970F.
Trying to flash Android 11 I discovered that it is actually sm-g970N.
Is there really a difference between them?
Should I be worried that some functions will be missing/unavailable?
Also, in the settings, it appears as g970F. How did the seller change it??

I have the same problem i tried to update the phone to the latest sm-g970f rom (figured if it's already installed it's possible)
And non of the roms flashed only when i decided to try latest sm-g970n rom it flashed however i bricked the phone and i have no idea what to do now.

almogkm said:
Hi all,
Yesterday I bought an S10e under the impression that it is sm-g970F.
Trying to flash Android 11 I discovered that it is actually sm-g970N.
Is there really a difference between them?
Should I be worried that some functions will be missing/unavailable?
Also, in the settings, it appears as g970F. How did the seller change it??
Click to expand...
Click to collapse
So after digging into the issue since i have the same problem here are my conclusions:
1. The phone is a Korean Variant G970N it is probably a renewed phone and not a new one.
apparently it's okay for an importer to take used phones (from Korea in this case) and replace all the cosmetics but of cause leaving the used MB.
Now here is what you should worry about, in order to flash the G970F Fixed Rom (there is no way you have updates) they used a Custom Kernel which means the phone was rooted and now Knox is tripped (this not reversible).
(Download Phone Info from play store and check knox if it shows 0x1 then your phone warrenty is void and some features won't be available any more for example - Samsung Pay).
So what should you do?
Well if you still have the option i would have demanded my money back!!
One thing that i am perplexed about is how in hell is this legal?!!!
If you no longer have this option or you want to keep the phone you have two option:
1. Flashing Korean Unbranded Firmware (KOO) which is pretty good it doesn't have bloatware or issues as far as i can tell, i only found one down side for it, the phone language selection is small but if you only need English (like any normal Human) then you are golden.
2. Keep the G970F ROM but bare in mind it will receive no updates and no security patches.
I am still looking for a proper way to flash G970F Firmware over G970N for now i haven't found any internet source that will confirm it's even possible.
So how did those importers\sellers did it, they probably flashed it with a Cellphone Lab Software (not Odin solution) and used a custom Kernel to fool Knox, like i said before this is practically a crime and i don't understand how can they sell used phones as new and get away with it!!!!

I had the same suspicions....
I'll try going to the lab that sold the previous owner the device and deal with them tho it looks like I just got scammed...

Sorry to bring this up again but I've just had an idea following JerryRigEverything's video:
What if I transplant SM-G970F components from a broken device that no longer works or in use in my SM-G970N which is supposedly new.
My N device is now bricked for some reason I couldn't solve, though my suspicion is that it has to do with incompatibility with the SIM card I use.
When my device did work, it worked great! ...besides battery issues that are most likely a result of the incompatibility aforementioned.
Will this work? If so, what components do I need? I already know I'll need the logic board but as seen in the video, there are several more antennas, should I just copy what Jerry did?

Vegetto32 said:
I have the same problem i tried to update the phone to the latest sm-g970f rom (figured if it's already installed it's possible)
And non of the roms flashed only when i decided to try latest sm-g970n rom it flashed however i bricked the phone and i have no idea what to do now.
Click to expand...
Click to collapse
Hi Vegetto,
I am from India and buy a galaxy S10e from UAE, It is showing G970F in the Phone's about but the problem is It is a G960N. Now, When I see in Sam Phone Info app there is Bootloader version - G970N, PDA Version - G970F, CSC G970F.
It is also a Knox tripped phone. Knox 0/1.
But if I see in Samsung code by typing in keypad *#12580*369#
it showing like all option in Odin:
BL: G970F
AP: G970F
CP: G970F
CSC: G970F
Does this means I can flash new Firmware on the list of SAM Mobile website, with G970F series firmware, It also showing in SAM Phone Info App that there latest firmware G970FXXSEFUL1/G970FOXMEFUJ2/G970FXXSEFUJ2.
I am in India right now.
Please help me, My email Id is -- [email protected]

It actually means you cannot flash SM-G970F the only roms you can flash are G970N.
Also if you want the phone to get security updates you must flash the original phones bootloader version, my suggestion download the G970N KOO firmware it's a global firmware. As for the knox it is tripped and there is nothing you can do about it.

Vegetto32 said:
It actually means you cannot flash SM-G970F the only roms you can flash are G970N.
Also if you want the phone to get security updates you must flash the original phones bootloader version, my suggestion download the G970N KOO firmware it's a global firmware. As for the knox it is tripped and there is nothing you can do about it.
Click to expand...
Click to collapse
How can I flash the original phone's bootloader version?
Where from I can download the original phone's G970N KOO Firmware and is it official Samsung Firmware?
How are they able to flash G970F? Is it custom Rom or do they use the original one?
I searched that my phone is using G970FXXS4BTB3 firmware which Vietnam XXV and same number found at https://www.sammobile.com/samsung/galaxy-s10e/firmware/SM-G970F/XXV/download/G970FXXS4BTB3/322678/ in an old update in 2020.
So see the attached screenshot, can I flash its latest version with odin. Of course, there is a chinese written in recovery mode installed when I go to its recovery mode for flashing with Odin.

I have a similar problem right now on my Korean S10E. Device is SM-G970N. I need it to be in Turkish. Only Themes item in Settings is in Turkish- very interesting- The rest is in English. App names are mostly Turkish Settings app name is in English.
The bootloader is unlocked but the phone is not rooted, Knox seems not tampered.
Could not start OTA update at first, I have upgraded a few versions from PC via Smartswitch. Just then noticed OTA also started downloading. The rest of the updates went on from the phone until upgrading to 12, there was a message like "All of the updates were not succesful." OTA update no longer responded. This time I turned back to Smart Switch. Update finished this time and finally I am at the latest version.
I only need Turkish in Settings. I used some ADB commands and an app called MoreLocale2. It did not work either. This has to be simple. Turkish exists. Keyboard is Turkish but not Settings. Quick links and most other things are strangely mixed English and Turkish.
How can I enable full Turkish?