Question SM-F936U to unlocked/unbranded firmware? - Samsung Galaxy Z Fold 4

It's been ages since i've messed around with flashing firmware. As the title says, I have a SM-F936U that WAS locked to Verizon. It no longer is, and I would like to flash the unlocked/unbranded firmware onto it as I hate Verizon's extra pushed junk they add. I browsed the firmwares. Is it the firmware from SM-F936U1 that I want? On the link https://samfw.com/firmware/SM-F936U1/ACG what does CSC mean?

Yes, you can flash U1 for the US model without carrier branding.
CSC means Consumer Software Customization, certain carriers/markets might get different software sets.

Have you done the process? I am in the same situation.

Related

How To Get Updates - Unlocked With XAC but No Updates (and other questions)

Hi All:
I followed the "Canadian W XAC Firmware" thread and have been very pleased - except that I have not gotten any updates since the April 1, 2017 Security Patch and the original XAC firmware available (QDE). A screenshot is attached and can be seen below.
This was originally a locked AT&T device that my company bought for me, right now the phone is showing XAA/XAA/ATT. I'm not really concerned about that - it's working fine as a device on TMB. I just want to make sure I'm getting the updates!
I guess this puts a couple questions into play:
Is there a difference between SM-955U and SM-955U1 hardware and/or firmware? Mine is currently on 955U, but it seems like they're fully interchangable - and the unlocked XAA is only under 955U1, as far as I can find.
Since I'm not concerned with TMB's features (which I've actually been able to activate in part anyway through the "IMS Settings" function), is there any danger in flashing the XAA (955U1) firmware?
If this is possible, can I flash the 955U1 firmware over the current firmware without a factory data reset? I'd rather not have to set up everything again.
Thank you!!!
Same issue here. Bought VZW s8+ originally, then flashed 955U1, then flashed TMB CSC. Now the string reads TMB/TMB/VZW. Not getting any update.
hchchchc said:
Same issue here. Bought VZW s8+ originally, then flashed 955U1, then flashed TMB CSC. Now the string reads TMB/TMB/VZW. Not getting any update.
Click to expand...
Click to collapse
You'll never change the last one to TMB. The last code is hardwired into your device in the EFS folder and cannot be changed without root. It only shows what variant you originally received and should have no effect on updates, as far as I know.
---------- Post added at 02:07 PM ---------- Previous post was at 02:00 PM ----------
patchmonkey said:
Hi All:
I followed the "Canadian W XAC Firmware" thread and have been very pleased - except that I have not gotten any updates since the April 1, 2017 Security Patch and the original XAC firmware available (QDE). A screenshot is attached and can be seen below.
This was originally a locked AT&T device that my company bought for me, right now the phone is showing XAA/XAA/ATT. I'm not really concerned about that - it's working fine as a device on TMB. I just want to make sure I'm getting the updates!
I guess this puts a couple questions into play:
Is there a difference between SM-955U and SM-955U1 hardware and/or firmware? Mine is currently on 955U, but it seems like they're fully interchangable - and the unlocked XAA is only under 955U1, as far as I can find.
Since I'm not concerned with TMB's features (which I've actually been able to activate in part anyway through the "IMS Settings" function), is there any danger in flashing the XAA (955U1) firmware?
If this is possible, can I flash the 955U1 firmware over the current firmware without a factory data reset? I'd rather not have to set up everything again.
Thank you!!!
Click to expand...
Click to collapse
No, there's no danger in flashing the XAA U1 firmware. There's several threads that show you how to do it, but it will wipe your device. Use Smart Switch to back everything up to your SD card. Between that, Samsung Cloud, and Google backup, you won't have to set much up again.
Once you've flashed the XAA firmware, you put your T-Mo SIM card in, and it will give a message stating it's switching carriers or something and reboot. You will still be on the unlocked, bloatfree firmware, but it will change your CSC string to TMB/TMB/ATT (the last code can't be changed), and you will have all the T-Mo carrier features except for video calling and RCS texting. If those are important to you, then you can always flash the T-Mo carrier software, but you'll get the bloat with it. (not much bloat on the T-Mo software).
As far as updates, everything I've read said you will receive updates OTA, but I didn't stay on T-Mo firmware long enough to find out. I just switched back to the original XAA firmware, and we haven't received a July update yet.
Something's not right here. Your model name should show as "SM-G955U1". Yours does not - yours shows SM-G955U still. If you want to be on the unlocked firmware, just search here on XDA for the princecomsy odin and download the latest firmware for the unlocked model and flash it. July security patch still isn't released, but having come from the unlocked S7e I can't say I'm surprised.
I don't know why you would need to follow any XAC thread to flash the unlocked firmware - all I did was use the modified odin and flash the unlocked firmware on my TMO S8+. Got the 1st OTA (unlocked U1 OTA) 1 week after flashing to U1.
There's a bunch of misinformation on how to change software versions. There's no reason to change anything with the carrier/region info (XAA/TMO/XAC, etc). As long as you are using a snapdragon S8 you can flash any (snapdragon) carrier firmware using the modified odin.

Can all USA Galaxy S9 models be flashed to each other's firmware?

I've read that the Galaxy S9 hardware is identical for all carriers in the USA.
If I bought a factory unlocked Galaxy S9 can I flash it to the carrier I am using (Verizon, Sprint, T-Mobile, AT&T) to enable carrier specific software and features? Can I flash it back to the unlocked firmware?
I already see a thread about flashing the unlocked firmware to carrier models so I am assuming there are no issues there.
Can one carrier model be flashed to another carrier model?
No, bootloaders are different, with the S7 there was an unbranded U firmware that was compatible with most of them, unlocked firmware will be that one for the S9, but no you cannot just flash different device firmwares to the wrong model
I was able to flash the ATT rom onto my Verizon S9. I got a VZ s9 from work but I'm on ATT. For the most part it's worked great, I had done the same thing previously with a Galaxy S7. I say for the most part b/c I am on here tonight to post a question myself about the fact that I'm getting a delay with MMS messages. I imagine it has something to do with the APNs I have setup, but I can't seem to figure it out.
toronado13 said:
I was able to flash the ATT rom onto my Verizon S9. I got a VZ s9 from work but I'm on ATT. For the most part it's worked great, I had done the same thing previously with a Galaxy S7. I say for the most part b/c I am on here tonight to post a question myself about the fact that I'm getting a delay with MMS messages. I imagine it has something to do with the APNs I have setup, but I can't seem to figure it out.
Click to expand...
Click to collapse
Did you have to flash to the U1 software first?
I do think that is what I ended up doing... tried to go directly first and it kept failing. Got fed up and decided to just try and put the bone stock rom on it, and that went on really easily.... so after using it like that a few days I tried to drop the ATT rom on it and it worked without issue.
SEALBoy said:
I've read that the Galaxy S9 hardware is identical for all carriers in the USA.
If I bought a factory unlocked Galaxy S9 can I flash it to the carrier I am using (Verizon, Sprint, T-Mobile, AT&T) to enable carrier specific software and features? Can I flash it back to the unlocked firmware?
I already see a thread about flashing the unlocked firmware to carrier models so I am assuming there are no issues there.
Can one carrier model be flashed to another carrier model?
Click to expand...
Click to collapse
Yes, but you need to go to the u1 firmware 1st then to the other carrier firmware. Also make sure you avoid the newer firmwares with the new bootloader, as the unlocked model and certain carrier models don't have the new bootloader.
*Detection* said:
No, bootloaders are different, with the S7 there was an unbranded U firmware that was compatible with most of them, unlocked firmware will be that one for the S9, but no you cannot just flash different device firmwares to the wrong model
Click to expand...
Click to collapse
lolol
yes u can.. u can flash between U and U1 firmwares no problem..
normally ud b correct tho but since s8/s8+ it has been ok.. just cant flash 9600 or 9650 to a U or U1 device
elliwigy said:
lolol
yes u can.. u can flash between U and U1 firmwares no problem..
normally ud b correct tho but since s8/s8+ it has been ok.. just cant flash 9600 or 9650 to a U or U1 device
Click to expand...
Click to collapse
That'll be why I still thought that then, coming straight from the S7 > S9
Had many members flashing the wrong firmwares thinking they could do that and bricking their S7s / wondering why ODIN failed
*Detection* said:
That'll be why I still thought that then, coming straight from the S7 > S9
Had many members flashing the wrong firmwares thinking they could do that and bricking their S7s / wondering why ODIN failed
Click to expand...
Click to collapse
I tried downloading vzw firmware G960USQS3ARI6 to my unlocked sprint s9 and still not vzw flashed. want to do this so can have voice over LTE. Any other steps im missing? flash went through but still sprint
As soon as Firmware ver. 3 came out for the G960U1, I was able to flash it to my Sprint G960U and finally have VoLTE, WiFi calling and stable LTE for MetroPCS. Used samkey to unlock it from Sprint. My phone is actually performing much faster without all of Sprint's bloatware hogging my RAM and storage space. I can confirm that OTA updates still work the same...I received September's security patch (current) with no problems. Device is still official status and Knox hasn't been tripped.
A lot of people think you can just flash the carrier firmware of your choice and boom, it works...I had the same thought process....that's not the case. You have to make sure that there is a matching firmware version for the carrier you want to flash to, as well as make sure the G960U1 firmware version (the unlocked version of the S9's software you have to flash first before even carrier flashing) is the same version of what is installed on your phone now. It's easy ya'll......just READ lol.
I'm in love with my phone again thanks to XDA. ?
HAPPY FLASHING!
nickosarus2008 said:
As soon as Firmware ver. 3 came out for the G960U1, I was able to flash it to my Sprint G960U and finally have VoLTE, WiFi calling and stable LTE for MetroPCS. Used samkey to unlock it from Sprint. My phone is actually performing much faster without all of Sprint's bloatware hogging my RAM and storage space. I can confirm that OTA updates still work the same...I received September's security patch (current) with no problems. Device is still official status and Knox hasn't been tripped.
A lot of people think you can just flash the carrier firmware of your choice and boom, it works...I had the same thought process....that's not the case. You have to make sure that there is a matching firmware version for the carrier you want to flash to, as well as make sure the G960U1 firmware version (the unlocked version of the S9's software you have to flash first before even carrier flashing) is the same version of what is installed on your phone now. It's easy ya'll......just READ lol.
I'm in love with my phone again thanks to XDA.
HAPPY FLASHING!
Click to expand...
Click to collapse
Hi, I got one unlocked G960U1(G960U1UES3ARI1) and downloaded new fireware(G960U1UES3ARI1-SPR) from sammobile, but after flashed SPR ROM successfully, the info on the phone still shows XAA, anything I missed here? Thanks!
Curtis2018 said:
Hi, I got one unlocked G960U1(G960U1UES3ARI1) and downloaded new fireware(G960U1UES3ARI1-SPR) from sammobile, but after flashed SPR ROM successfully, the info on the phone still shows XAA, anything I missed here? Thanks!
Click to expand...
Click to collapse
Well first off, you have the unlocked phone. I don't. My G960U is originally from Sprint, so I'm not sure about carrier flashing regarding the G960U1. I thought it was supposed to provision itself after you put the sim in, and the associated carrier apps will download since it's the unlocked model...but I may be wrong...
SEALBoy said:
I've read that the Galaxy S9 hardware is identical for all carriers in the USA.
If I bought a factory unlocked Galaxy S9 can I flash it to the carrier I am using (Verizon, Sprint, T-Mobile, AT&T) to enable carrier specific software and features? Can I flash it back to the unlocked firmware?
I already see a thread about flashing the unlocked firmware to carrier models so I am assuming there are no issues there.
Can one carrier model be flashed to another carrier model?
Click to expand...
Click to collapse
I know so many people have already answered your question from some saying No to others saying Yes but you need to Install U1 first and Bla Bla Bla.
I want to give you one specific answer: With S9 you can any Carriers firmware you wish or even Unlocked phone's firmware. You will never have any issue. And you don't ever need to flash U1 or something else before changing carrier firmware you can Flash from ATT S9 firmware to VZW S9 firmware without any issue. You can also flash from U to U1 which is from Carrier specific to Unbranded/Unlocked but only hiccup is original Odin will give you SHA-256 error, which is normal because you are flashing U1 firm to U device or vice versa. This error can easily be resolved by used Patched odin that disabled SHA-256 check. And trust me you will never have any issue.
You will never want to do this but I have gone as far as mix-matching U and U1 firmware together as well. Like flashing AP, BL and CP of U device but flashing CSC of U1 device. and it still works.
hey there, a little late to the party, having trouble with going from a Verizon to a Sprint, even by way of U1. I can't get any of them to work. And I've been told I have to go from VZW to U1 before I went to Sprint. Is that not the case? I'm having a hell of a time getting anything to flash, everything fails.
---------- Post added at 03:08 AM ---------- Previous post was at 02:57 AM ----------
ret4425 said:
hey there, a little late to the party, having trouble with going from a Verizon to a Sprint, even by way of U1. I can't get any of them to work. And I've been told I have to go from VZW to U1 before I went to Sprint. Is that not the case? I'm having a hell of a time getting anything to flash, everything fails.
Click to expand...
Click to collapse
well, I tried to load the Sprint image from the VZW, no dice. It said it passed, but upon reboot loaded up the old Big Red (even with the Sprint SIM in it).
Anyone have any ideas? This is driving me insane....

Can anyone walk me through how to flash from G930u to G930v?

I purchased a Samsung S7 on Amazon, and it was listed as a G930V. However, when I received it, I was disappointed to see that in "Device Info"... it lists it as a Samsung G930U.
From what I understand, this is indicates Unlocked Firmware install, which will prevent me from using Verizon's Visual voicemail and also be unable to use the built in Video calling feature, where you can video call anyone in the Verizon Network.
What I don't get, is why the back panel of the phone has a Verizon Logo, even though apparently it is unlocked. I thought all Verizon branded phones, have the G930v firmware?
Anyways, is it possible to flash the phone to G930 firmware, so I can use the features I want to have access to? Or is it recommended I just return this item and try and buy another G930v? Does anyone have any detailed instructions on how to flash to G930v?
Interestingly, when I checked the IMEI online... it lists the device as a Verizon G930V. I guess someone has previously flashed these to U from V?
ETA: Are there any benefits to sticking with Unlocked firmware? Are there any advantages of G930U over G930v? I know the G930v comes with a bunch of bloatware... but wondering if there are other things that VZW's firmware might handicap?
JFox762 said:
I purchased a Samsung S7 on Amazon, and it was listed as a G930V. However, when I received it, I was disappointed to see that in "Device Info"... it lists it as a Samsung G930U.
From what I understand, this is indicates Unlocked Firmware install, which will prevent me from using Verizon's Visual voicemail and also be unable to use the built in Video calling feature, where you can video call anyone in the Verizon Network.
What I don't get, is why the back panel of the phone has a Verizon Logo, even though apparently it is unlocked. I thought all Verizon branded phones, have the G930v firmware?
Anyways, is it possible to flash the phone to G930 firmware, so I can use the features I want to have access to? Or is it recommended I just return this item and try and buy another G930v? Does anyone have any detailed instructions on how to flash to G930v?
Interestingly, when I checked the IMEI online... it lists the device as a Verizon G930V. I guess someone has previously flashed these to U from V?
ETA: Are there any benefits to sticking with Unlocked firmware? Are there any advantages of G930U over G930v? I know the G930v comes with a bunch of bloatware... but wondering if there are other things that VZW's firmware might handicap?
Click to expand...
Click to collapse
3 weeks late but here are my insights. U firmware has less bloatware than the VZW branded firmware. In general, most people prefer the U firmware over their branded firmware unless, as in your instance, there are certain features only available in branded versions. My guess would be that yours was a VZW that was flashed to U. In all likelihood it shouldn't be too difficult to convert back to VZW, if that's your preference. You'll need to familiarize yourself with Odin flashing and the particulars of matching bootloader numbers for firmware to flash. For an example see link: https://android.stackexchange.com/questions/202491/what-do-the-numbers-and-letters-in-the-samsung-firmware-mean
Hope this helps ...

O2 branded SM-G960F to vodafone

I've got an O2 Galaxy S9 and I'd like to use it with a Vodafone SIM in UK.
Is it just the firmware that would need changing or would the ROM need to be changed too?
technician483 said:
I've got an O2 Galaxy S9 and I'd like to use it with a Vodafone SIM in UK.
Is it just the firmware that would need changing or would the ROM need to be changed too?
Click to expand...
Click to collapse
the firmware contains the ROM, but the ROM wouldnt have been what prevented you from using this to its full potential. Technically, all youd really need to do is flash your carriers CSC and even maybe the HOME_CSC. If youre unfamiliar with those terms and/or processes, just flash the Vodafone firmware with the CSC (which will factory reset it) and call it a day
Youdoofus said:
the firmware contains the ROM, but the ROM wouldnt have been what prevented you from using this to its full potential. Technically, all youd really need to do is flash your carriers CSC and even maybe the HOME_CSC. If youre unfamiliar with those terms and/or processes, just flash the Vodafone firmware with the CSC (which will factory reset it) and call it a day
Click to expand...
Click to collapse
Hi Youdoofus,
Thanks for your help.
Can I just run this past you then.
The phone came brand new from O2 and is not locked to the network.
I'm using a Vodafone SIM in the phone and I have trouble receiving SMS, making 4G calls, etc.
I understand what it is to flash the phone with new firmware although I've never done it before.
If I flash the phone with the latest Vodafone firmware and Vodafone or generic CSC that should be enough to get the phone working ok with the Vodafone SIM?
Sorry if the question seems basic. This is obviously not my area of expertise.
technician483 said:
Hi Youdoofus,
Thanks for your help.
Can I just run this past you then.
The phone came brand new from O2 and is not locked to the network.
I'm using a Vodafone SIM in the phone and I have trouble receiving SMS, making 4G calls, etc.
I understand what it is to flash the phone with new firmware although I've never done it before.
If I flash the phone with the latest Vodafone firmware and Vodafone or generic CSC that should be enough to get the phone working ok with the Vodafone SIM?
Sorry if the question seems basic. This is obviously not my area of expertise.
Click to expand...
Click to collapse
no worries mate. nobody is innately knowledgeable about this stuff, even the seasoned linux vets can stumble about a bit.
but yes, all you really need to do is flash the Vodafone or generic/multi csc and youll probably be good to go. the reason your sms isnt working is likely due to your APN settings and voLTE wont work without your carriers own CSC installed tho. That being said, many of the multi CSC firmware packs will do the job quite nicely as they will likely have Vodafones CSC in their list of available CSCs. It would be different if you used a fly by night carrier
I flashed mine with unbranded generic UK firmware BTU-G960FXXU7CSK1-20191121174240.zip.
Got it here, took forever: https://samfrew.com/download/Galaxy__S9__/5vgs/BTU/G960FXXU7CSK1/G960FOXM7CSJ5/
Probably better using Frija to download it quick but I couldn't get it working:
https://forum.xda-developers.com/s10-plus/how-to/tool-frija-samsung-firmware-downloader-t3910594
Final Samsung Android 10 should be out any day now (if you can wait).
Big fan of this Lineage 17 10 rom by Abtekk if you fancy something custom:
https://forum.xda-developers.com/ga...-s9--s9-cross-device-development/rom-t4020939
Currently running that with White Wolf kernel & Zoran's GCam, good luck!

Can I flash sm-N975U1 AT&T unlocked firmware over sm-N975U AT&T?

My sm-N975U AT&T note 10+ has never ever received any updates.
It's currently at Android 9, N975USQU1AS12, security patch: September 1, 2019. Since I got it in 2019.
I see that the unlocked version SM-975U1 AT&T receives updates frequently and I can easily get the firmware online.
I've not even seen any Android 10 firmware for SM-975U AT&T.
So is it possible to flash SM-975U1 AT&T unlocked over SM-975U AT&T.
Or even just to make it US unlocked with no carrier so I can receive updates from Samsung?
You can flash the N975U1 firmware onto the N975U (and vice versa) so long as the bootloader is the same version (or higher) then what is currently installed on the phone.
Three things to keep in mind:
No way exists to downgrade the bootloader... So if you flash firmware with a newer bootloader and you decide you want to go back you will not be able too.
Bootloader version can be found by doing the following. Looking at your About Phone > Software Version look at the baseband version info.. Start at the far right and count 5 characters to the left (with the first character being the far right one). The number that is the 5th character in will be the bootloader version that is currently on the phone.
The USERDATA isn't always included with the U1 firmware should you desire the AT&T version of it. You should be able to find that in this thread,
For an example the red number is the bootloader version:
N975U1OYM3CTE7
For anything else this question has been discussed here a lot so you won't have any issues finding information about it.
So this will unlock the phone? Does the same go for the Sprint version?
Nickdroid86 said:
So this will unlock the phone? Does the same go for the Sprint version?
Click to expand...
Click to collapse
You can flash the firmware from the N975U1 to the N975U (and vice versa). It doesn't matter the carrier, only the model number matters.
Just be sure to be mindful of the bootloader version.
Flashing the firmware from the N975U1 does not have any relation to the network/sim lock. For network/sim unlocking you will have to ask your provider to do this for you
The term (or name) "unlocked firmware" is derived from the phone it comes from.. The N975U1 is the carrier/network unlocked variant sold by Samsung.
so if i put the, U1 firmware to n975u and i'm out USA. now I will receive all the new updates automatically via OTA?
Excuse me, I am new to the forum, I have a question for you, I have an at & t SM-N975U, this at & t firmware does not update outside the USA, I am in Mexico, which firmware should I use, I want it to update automatically via OTA here in Mexico? t-mobile firmware or U1 firmware, I really appreciate your answer,
hello, my question is similar but regarding the carrier. My Note 10 Plus is AT&T locked, if I flash the SM-N975U1 over the SM-N975U, will that unlock the carrier so i can use anyone outside USA?
No. It won't. You'll have to have AT&T unlock it.
scottusa2008 said:
You can flash the N975U1 firmware onto the N975U (and vice versa) so long as the bootloader is the same version (or higher) then what is currently installed on the phone.
Three things to keep in mind:
No way exists to downgrade the bootloader... So if you flash firmware with a newer bootloader and you decide you want to go back you will not be able too.
Bootloader version can be found by doing the following. Looking at your About Phone > Software Version look at the baseband version info.. Start at the far right and count 5 characters to the left (with the first character being the far right one). The number that is the 5th character in will be the bootloader version that is currently on the phone.
The USERDATA isn't always included with the U1 firmware should you desire the AT&T version of it. You should be able to find that in this thread,
For an example the red number is the bootloader version:
N975U1OYM3CTE7
For anything else this question has been discussed here a lot so you won't have any issues finding information about it.
Click to expand...
Click to collapse
Hello can you please help me too
I'm super new here
So i have the N975U and i live in Europe and i don't get any updates cuz my Note 10+ is the AT&T version and now i want to change it to N975U1 so i can get updates from Samsung themselves.. from Sammobile i downloaded The N975U1OYM7GULD-(XAA) model and also N975U1OYM7GULD-AT&T model while the current one i have is N975USQS7FUI7 so both of them i think should work because they have the same bootloader so my question is since i want to get updates to which one should i flash my phone with? I heard the XAA is better because u get updates directly from Samsung themselves ( even when I'm in Europe ) and the AT&T version is also N975U1 but I'm not sure if i will be getting updates because now I already have the N975U ( probably AT&T model that's why I'm not getting anything ) So what do you think i should do?
I'd appreciate ur help
And sorry for my broken ass English hope you understood..
scottusa2008 said:
You can flash the N975U1 firmware onto the N975U (and vice versa) so long as the bootloader is the same version (or higher) then what is currently installed on the phone.
Three things to keep in mind:
No way exists to downgrade the bootloader... So if you flash firmware with a newer bootloader and you decide you want to go back you will not be able too.
Bootloader version can be found by doing the following. Looking at your About Phone > Software Version look at the baseband version info.. Start at the far right and count 5 characters to the left (with the first character being the far right one). The number that is the 5th character in will be the bootloader version that is currently on the phone.
The USERDATA isn't always included with the U1 firmware should you desire the AT&T version of it. You should be able to find that in this thread,
For an example the red number is the bootloader version:
N975U1OYM3CTE7
For anything else this question has been discussed here a lot so you won't have any issues finding information about it.
Click to expand...
Click to collapse
And should i use Odin patch or just the normal odin? I actually wanted to flash my phone with the Germany version but i don't know if it will work!!? ( You'd use odin patch you want to change region! ) so idk if it would work if i change it from N975U to N975F which is Germany model !!?

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