Galaxy A520f VAU to XSA - Samsung Galaxy A3, A5, A7 (2017) Questions & Answe

Hi, I was wanting to flash my phone so that I can use it with any carrier. It is an A520F 2017 with nougat os. I have read some threads online and its just getting confusing. I'm hoping someone can point me in the right direction. Is there any one method that is safer than the others. IE: TWRP, Heimdall ect. Do I need to update to oreo first or is it easier from nougat. Is dm-verity going to be an issue. ? Thanks in Advance

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Can I change CSC?

Hi, I have an unlocked A320FL with TPH (Portugal) csc on 6.0.1, I see on SamMobile that TCL csc (Portugal Vodafone) is on 7.0
Can I safely change CSC without tripping Knox?
Can anyone guide me on updating my A320FL to Nougat without voiding the warranty?
Yes you can!
Follow these instructions...
I did it without tripping Knox.
How do I know if the firmware I'm about to install is multi-CSC?
Did you do it on an A320FL? Did you tick Re-partition when installing a different CSC?
wall_ said:
How do I know if the firmware I'm about to install is multi-CSC?
Click to expand...
Click to collapse
It seems that every CSC is multi-csc.
Hello guys! I don't want to start another thread for the same problem.
I am on 7.0 right now, with multi CSC (not for my country, of course)
I want to flash now ORO CSC (for carrier settings and options like VoLTE and such. (https://www.sammobile.com/firmwares/galaxy-a5/SM-A520F/ORO/)
I can do this without rooting? If anyone can explain me step by step on how to do this it would be awesome!
Thanks in advance!

choosing Oreo update ?

I have a5 2017 A520F/DS
i am on ins naugat 7.0 now .my phone was bought from uae and has xsg firmware eairlier.
I have installed twrp and rooted the phone.
I want to install oreo and get back to naugaut because i want volte.Volte(voice over lte) is only available in ins firmware and ins oreo is not yet relased.
.
My question is Which firmware should i download out diffrent countries firmware?
How do i flash it beacause i read so many foroms says re partition to br ticked and pit file and so on?
How do i get back ins 7.0 if i wanted?
Really appreciate your replies,sorry fo bad english.

SM-j730F Oreo to Nougat downgrade

Hi guys I am new to this forum so if this thread is in the wrong section I apologize.
I have Samsung galaxy J7 2017 phone (SM-J730F). which I bought carrier free-unlocked from a seller in Croatia.
Unfortunately I was stupid enough to fall for the OTA update and installed Oreo on it, after that my phone's battery
life was cut in half and apps started hanging and crashing. I wan't to revert to Nougat, I have tried to flash
two official ROMS downloaded from updato and sammobile but it fails every time. Yes I have tried
multiple usb ports, cables and etc. Problem is I can't find the carrier free ROM for CROATIA on neither updato nor sammobile
and I downloaded south east europe rom which doesn't want to flash. By browsing through multiple pages
I found that the problem might be in the bootloader version, Oreo has higher bootloader version and doesn't
allow flashing a rom with lower bootloader version (which I havent checked). Please guys if someone could help
me with this, cause oreo is driving me crazy and basically making my device unusable. I'd appreciate it if someone could provide
links and tips or walkthroughs. Thanks in advance
PHONE INFORMATION:
MODEL NUMBER: SM-J730F
ANDROID VERSION: 8.1.0
BASEBAND VERSION: J730FXXU3BRI3
KNOX VERSION: 3.1
SECURITY PATCH LEVEL: 1. AUGUST 2018

Question A52s 5G (SM-A528B) Debranding

Hello is there any free way to debrand Samsung A52s on Android 12 One UI 4.0? I also dont want to trigger the KNOX flag. My current CSC is PRT (Poland (Play)) and I want to make it XEO (Poland). I already tried some methods with phone call codes and none of them work. Is there any way to do this?
If by debranding you mean removing bloatware and changing your bootanimation etc, just root your phone and do those things. You'll easily be able to find tutorials on how to do all that for your device.
Now, if by debranding you mean that you want a stock android feel, then sorry but your device doesn't have any custom Android development, so you can't install a stock/custom ROM.
PhotonIce said:
If by debranding you mean removing bloatware and changing your bootanimation etc, just root your phone and do those things. You'll easily be able to find tutorials on how to do all that for your device.
Now, if by debranding you mean that you want a stock android feel, then sorry but your device doesn't have any custom Android development, so you can't install a stock/custom ROM.
Click to expand...
Click to collapse
By debranding I mean get full stock Samsung firmware which CSC code is XEO, and my current CSC code (PRT) and both are in OXM - multi-CSC so I need to change the CSC code, but tools that can do that are paid, like SamKey so is there any free way
I don't have much experience with oneui Samsung devices, so I've got no idea, sorry.
Check this out though,
A52s 5g: Debranding the phone
Hi, so I got myself a new Samsung A52s 5G but to my dissapointment it is branded by one of the polish carriers (csc: PRT). It pisses me a lot so naturally I started looking for a way to debrand it. Long story short, downloaded Samkey, got the...
forum.xda-developers.com
PhotonIce said:
Check this out though,
A52s 5g: Debranding the phone
Hi, so I got myself a new Samsung A52s 5G but to my dissapointment it is branded by one of the polish carriers (csc: PRT). It pisses me a lot so naturally I started looking for a way to debrand it. Long story short, downloaded Samkey, got the...
forum.xda-developers.com
Click to expand...
Click to collapse
There is nothing about how to do it just link to ADB
Then there's probably no free way to do what you're trying to do. Also in that post the person claims to have the same csc code as you (prt), and samkey did not work for him.
@Raflen100 Hello! Have the same problem as you: purchased a carier SM-A528 whitout realising the consequences and am no bugged by the super slow updates. I think i am on the same OXM firmware as you. Want from DTM to DBT. My attempt to simply flash DBT and then use dialer codes to switch the CSC failed all.
SAMkey is no option for me, as i don't have any idea about the background and don't want to ;-).
Also: don't want to trigger KNOX.
Since i use a different carrier, i just want a stock SAMSUNG and don't have to wait for weeks for my updates.
If you found a way in the meantime, that would be good news.
thomste said:
@Raflen100 Hello! Have the same problem as you: purchased a carier SM-A528 whitout realising the consequences and am no bugged by the super slow updates. I think i am on the same OXM firmware as you. Want from DTM to DBT. My attempt to simply flash DBT and then use dialer codes to switch the CSC failed all.
SAMkey is no option for me, as i don't have any idea about the background and don't want to ;-).
Also: don't want to trigger KNOX.
Since i use a different carrier, i just want a stock SAMSUNG and don't have to wait for weeks for my updates.
If you found a way in the meantime, that would be good news.
Click to expand...
Click to collapse
Actually, there is a way that was created in the meantime. Around may 2022, developers of samfw.com created the SamFw Tool. It can change the csc of phone through ADB without root, so it does not trip KNOX or wipe data, which is awesome. It worked for me really well. Just make sure to use the non-root CSC change.
Here's the link: https://samfw.com/blog/samfw-frp-tool-1-0-remove-samsung-frp-one-click
Hope it helps.
Raflen100 said:
Actually, there is a way that was created in the meantime. Around may 2022, developers of samfw.com created the SamFw Tool. It can change the csc of phone through ADB without root, so it does not trip KNOX or wipe data, which is awesome. It worked for me really well. Just make sure to use the non-root CSC change.
Here's the link: https://samfw.com/blog/samfw-frp-tool-1-0-remove-samsung-frp-one-click
Hope it helps.
Click to expand...
Click to collapse
Hello @Raflen100, thank you very much. That looks actually very interesting. I currently seem to be not able to find a version without malware, but i'll keep it on my watch list. Can you accidentally tell from experience, that the [provider] CSC change work without need for rooting? My impression so far is that the provider CSC can not be overwritten by flashing, even after having removed the filesystem, so may be stored somewhere else? Or is the SAMSUNG server telling it to the phone, based on it's IMEI?
thomste said:
Hello @Raflen100, thank you very much. That looks actually very interesting. I currently seem to be not able to find a version without malware, but i'll keep it on my watch list. Can you accidentally tell from experience, that the [provider] CSC change work without need for rooting? My impression so far is that the provider CSC can not be overwritten by flashing, even after having removed the filesystem, so may be stored somewhere else? Or is the SAMSUNG server telling it to the phone, based on it's IMEI?
Click to expand...
Click to collapse
You can download it from the link I gave you, it's the official post so no malware.
Yes, it does not have any need for rooting your phone.
Answer to your question is very simple, samsung has multi-CSC roms, so flashing one or another won't change anything on the newer phones. There still are single CSC roms, but there are really few of them. And yes, I think it's based on IMEI, because you can't change the entry for the factory CSC, it will always remain there, but you can change the current CSC of the software just by using this tool.
Raflen100 said:
You can download it from the link I gave you, it's the official post so no malware.
Yes, it does not have any need for rooting your phone.
Answer to your question is very simple, samsung has multi-CSC roms, so flashing one or another won't change anything on the newer phones. There still are single CSC roms, but there are really few of them. And yes, I think it's based on IMEI, because you can't change the entry for the factory CSC, it will always remain there, but you can change the current CSC of the software just by using this tool.
Click to expand...
Click to collapse
Brilliant, i got it now, thank you for pointing this out. It clicked for me when you wrote "current" CSC. I'll try.

Question Downgrade G60s from A12 to A11

Hello guys, I've not found a specific section for the G60s, so I'm posting it here.
I hope it's ok.
I've applied the A12 upgrade to my G60s and I've been regretting that decision from day one.
Is there any way to downgrade the G60s from A12 to A11's latest security patch?.
I know I should unlock the bootloader (which I can do), but I'm not sure from where download my previous firmware. I've found a site that has some firmwares, but they are not the latest ones. But I guess I could deal with that, since I'd rather have A11 than A12.
I was on RRLS31.Q2X-70-39-5.
Thank you.
Hello.
I've not been able to answer the question if this phone is downgradable or not, but in my research I've been able to find a link with the latest Android 11 firmwares for my model.
Here's the link -> https://motostockrom.com/motorola-moto-g60s-xt2133-1
That includes the latest security patch I was running.
What's left is the simple question if this process is even possible.
Thanks.

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