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how to convert a SM-N9500 to Verizon?

I have a Samsung Galaxy Note 8 Duos SM-N9500
Android 7.0
64Gig
Build MMB29K.G950FXXU1APFO
believe bootloader is V1
Is it possible to get my verizon service working on the sm-n9500. Sim is recognized but no auth I have entered APN settings that made no change.
I read I may need to flash I can not find a definitive answer to what FW and ROM I should flash to get it converted over to a US phone.
I read SM-N950U1 maybe the FW to use.
Can you please help me to understand what I need to do.

zedhed said:
I have a Samsung Galaxy Note 8 Duos SM-N9500
Android 7.0
64Gig
Build MMB29K.G950FXXU1APFO
believe bootloader is V1
Is it possible to get my verizon service working on the sm-n9500. Sim is recognized but no auth I have entered APN settings that made no change.
I read I may need to flash I can not find a definitive answer to what FW and ROM I should flash to get it converted over to a US phone.
I read SM-N950U1 maybe the FW to use.
Can you please help me to understand what I need to do.
Click to expand...
Click to collapse
You can try HOME_CSC file of any N950U firmware in Prince Comsy's Odin but it may not work

BlueFox721 said:
You can try HOME_CSC file of any N950U firmware in Prince Comsy's Odin but it may not work
Click to expand...
Click to collapse
I thought that would be the way to do it to BlueFox721.... but no go for me.
I will close the thread I sold it to a guy that loved it on his AT&T account. Worked for att what gives.. so you know..

Does the 9500 have Google play and does it feel like a US device or a Chinese device

ekerbuddyeker said:
Does the 9500 have Google play and does it feel like a US device or a Chinese device
Click to expand...
Click to collapse
It comes with Google play and works fine.
The only issues I have are that Samsung pay and Bixby are showing more Chinese offers and searches than local (I'm based in the UK).
Other than that, great phone!

Changing the CSC of SM-N9600 from Hong Kong to USA for Samsung Pay Usage

Hi all,
I bought my Galaxy Note 9 mainly for Samsung Pay and just realized that there is a regional lock for Samsung Pay. (I don't care about other things like VoLTE or Wifi Calling).
My Note 9 is SM-N9600 and the CSC is TGY (Hong Kong).
I wonder whether there are any ways to change the CSC from Hong Kong to USA so that I can use Samsung Pay in US?
I have read lots of posts in this forum, but got no luck. There are some related threads:
for S8/S8+: https://forum.xda-developers.com/galaxy-s8/how-to/guide-changing-csc-s8-s8-root-t3799045
for N960FD: https://forum.xda-developers.com/galaxy-note-9/how-to/note-9-n960fd-dual-sim-csc-change-oxm-t3841000
same question but no answer: https://forum.xda-developers.com/galaxy-s9/help/changing-csc-to-u1-usas-samsung-pay-t3801639
My understanding is that:
- To change the CSC (especially from SM-N9600 to SM-N960U), we must reflash the firmware.
- SM-N9600 does not have any firmware having USA CSCs.
- We can get the USA CSCs from N960U and put it into the firmware of N9600, and then flash it.
- However, the modified firmware will trigger Knox and hence make Samsung Pay unusable.
Are there any suggestions or tutorials on this?
For example, will applying the firmware of SM-N960U on SM-N9600 work?
Thanks!

denru01 said:
Hi all,
I bought my Galaxy Note 9 mainly for Samsung Pay and just realized that there is a regional lock for Samsung Pay. (I don't care about other things like VoLTE or Wifi Calling).
My Note 9 is SM-N9600 and the CSC is TGY (Hong Kong).
I wonder whether there are any ways to change the CSC from Hong Kong to USA so that I can use Samsung Pay in US?
I have read lots of posts in this forum, but got no luck. There are some related threads:
for S8/S8+: https://forum.xda-developers.com/galaxy-s8/how-to/guide-changing-csc-s8-s8-root-t3799045
for N960FD: https://forum.xda-developers.com/galaxy-note-9/how-to/note-9-n960fd-dual-sim-csc-change-oxm-t3841000
same question but no answer: https://forum.xda-developers.com/galaxy-s9/help/changing-csc-to-u1-usas-samsung-pay-t3801639
My understanding is that:
- To change the CSC (especially from SM-N9600 to SM-N960U), we must reflash the firmware.
- SM-N9600 does not have any firmware having USA CSCs.
- We can get the USA CSCs from N960U and put it into the firmware of N9600, and then flash it.
- However, the modified firmware will trigger Knox and hence make Samsung Pay unusable.
Are there any suggestions or tutorials on this?
For example, will applying the firmware of SM-N960U on SM-N9600 work?
Thanks!
Click to expand...
Click to collapse
You cant cross flash firmware from different device versions...ie N9600 vs N960... not happening.
Those of use who have the exynos version can flash US CSC files via twrp. I would think the same would be possible for the N9600.
I search the note 9 forums for the exynos method and go from there even though im not sure if just changing csc will allow sammy pay to work

force70 said:
You cant cross flash firmware from different device versions...ie N9600 vs N960... not happening.
Those of use who have the exynos version can flash US CSC files via twrp. I would think the same would be possible for the N9600.
I search the note 9 forums for the exynos method and go from there even though im not sure if just changing csc will allow sammy pay to work
Click to expand...
Click to collapse
Thanks for your reply. Actually, I don't think cross-flashing will work either.
My SM-N9600 uses Qualcomm's Snapdragon, not Exynos.
Another thought is that I checked the firmware for SM-N9600, and found there is a version for Puerto Rico and Puerto Rico is listed in the US's Samsung Pay Reward program.
I wonder whether I will be able to safely flash it, and use the Samsung Pay.

denru01 said:
Thanks for your reply. Actually, I don't think cross-flashing will work either.
My SM-N9600 uses Qualcomm's Snapdragon, not Exynos.
Another thought is that I checked the firmware for SM-N9600, and found there is a version for Puerto Rico and Puerto Rico is listed in the US's Samsung Pay Reward program.
I wonder whether I will be able to safely flash it, and use the Samsung Pay.
Click to expand...
Click to collapse
If you have an N9600 then yes you can flash any N9600 firmware. Whether or not pay works I cant say sorry

Probably you can try flash HK firmware but with US CSC?
But not 100% sure...

Did you try add adding the card? You would miss out on Samsung Rewards but it should work, myself and some other I have read about just added the card to Samsung Pay and it did work, it does for me. I just can't use and claim the rewards points.

hinnn said:
Probably you can try flash HK firmware but with US CSC?
But not 100% sure...
Click to expand...
Click to collapse
Do you know how to do that properly?

daLareid said:
Did you try add adding the card? You would miss out on Samsung Rewards but it should work, myself and some other I have read about just added the card to Samsung Pay and it did work, it does for me. I just can't use and claim the rewards points.
Click to expand...
Click to collapse
Thanks! I think it may work.
However, what I want is the Samsung Rewards...

I heard a rumor that flashing the Mexico firmware and putting in a Mexican Sim card (off ebay) in before booting up would get Samsung Pay to work.
I want to test it, but I don't have a phone to test with

I have n9600 and have Samsung pay working is US. Just used appbackup and archived Samsung pay framework and Samsung pay from my TMo Note 8 and installed it on the Note9. Have TMo SIM and works fine. Now only if I can figure out a way to get wifi calling working.....

denru01 said:
Thanks! I think it may work.
However, what I want is the Samsung Rewards...
Click to expand...
Click to collapse
Then my guess is you're out of luck unless you purchase a new US version phone or wherever you're from.
hechon said:
I have n9600 and have Samsung pay working is US. Just used appbackup and archived Samsung pay framework and Samsung pay from my TMo Note 8 and installed it on the Note9. Have TMo SIM and works fine. Now only if I can figure out a way to get wifi calling working.....
Click to expand...
Click to collapse
I believe the only way to do so is rooting your phone and using the following guide:
http://tekhd.com/detonator/#tmodetonator

No rooting required.

hechon said:
No rooting required.
Click to expand...
Click to collapse
No way to do it as of today without root unfortunately.

I'm sorry but I was saying I've done it, not that it should be possible. Not only with my note 9 (N9600) but with my previous Note 8 (N9500) as well. So your statement seems to be not really correct.
daLareid said:
No way to do it as of today without root unfortunately.
Click to expand...
Click to collapse

hechon said:
I have n9600 and have Samsung pay working is US. Just used appbackup and archived Samsung pay framework and Samsung pay from my TMo Note 8 and installed it on the Note9. Have TMo SIM and works fine. Now only if I can figure out a way to get wifi calling working.....
Click to expand...
Click to collapse
Hi hechon,
Thanks for sharing! Could you please provide more details?
- Can I use Samsung Rewards and get the promotions from USA?
- What is appbackup and how can I use it to archive and restore the backuped apps?
Thanks.

denru01 said:
Hi hechon,
Thanks for sharing! Could you please provide more details?
- Can I use Samsung Rewards and get the promotions from USA?
- What is appbackup and how can I use it to archive and restore the backuped apps?
Thanks.
Click to expand...
Click to collapse
I was able to install the US Saumsung Pay and log in. However, the home tab says that "You're offline".
Let me explain what I did:
- I downloaded App Backup Lite on my previous US S8 and then backed up Samsung Framework and Samsung Pay.
- I reset my Note 9 without installing Samsung Pay.
- I installed the backup Samsung Framework and Samsung Pay.
- When I installed Samsung Framework, the system said that "I upgraded the installed Samsung Framework".
- When I installed Samsung Pay, the system said that "I installed it".
- I opened Samsung Pay and logged in. The home page shows "You're offline", but the other pages look ok.
- I went into the setting in Samsung Pay and reset the app. However, it did not fix the problem.

hechon said:
I'm sorry but I was saying I've done it, not that it should be possible. Not only with my note 9 (N9600) but with my previous Note 8 (N9500) as well. So your statement seems to be not really correct.
Click to expand...
Click to collapse
You meant to say you got volte and wificalling without root on Note 9? how?

hechon said:
I have n9600 and have Samsung pay working is US. Just used appbackup and archived Samsung pay framework and Samsung pay from my TMo Note 8 and installed it on the Note9. Have TMo SIM and works fine. Now only if I can figure out a way to get wifi calling working.....
Click to expand...
Click to collapse
Have you tried this?
tekhd detonator/#tmodetonator
I am in the exact same situation but I have to back up mine first

JoshUserName said:
Have you tried this?
tekhd detonator/#tmodetonator
I am in the exact same situation but I have to back up mine first
Click to expand...
Click to collapse
I think this requires rooting the phone, which trips Knox and disables Samsung Pay.

I have heard about that you can use the SM-N9600 firmware but replace the CSC file from SM-N960U. Someone claims that he successfully did this on his note 7. However, I noticed that after S8, Samsung updates their bootloader and this way may brick the phone. Any idea?

Downgrade to android Oreo

i just upgraded my note 9 SM-N960F from dutch 8.1.0 to German 9.0 pie via Odin . and to be honest im so disappointing with this UI and the whole update i was wondering if is it still possible to downgrade back to Oreo again ???
thanks alot

I think that it should be possible with Odin but honestly I never done it before so don't know. By the way, is the black mode feature implemented it this version of Pie in the toggles or in settings ?
Because I read someware that the initial version of this black mode or night mode or however it's called is not fully implemented like the final version should be.

toggles and settings both of them in night mode , but its not stable i have the feeling its slower my phone down some unknows issus

First try clear cache in recovery mode maybe can resolve. also try to update apps with play store or with galaxy apps because some apps must need an update to the pie version.. After that if all is worthless, maybe a factory reset will resolve Sometimes corrupted data may do this after an update specially after a big OS change like this.

Amr Mohsen said:
i just upgraded my note 9 SM-N960F from dutch 8.1.0 to German 9.0 pie via Odin . and to be honest im so disappointing with this UI and the whole update i was wondering if is it still possible to downgrade back to Oreo again ???
thanks alot
Click to expand...
Click to collapse
Hey let me know if you succeed, as I’m thinking of downgrading as well. ONE UI PIE-9 isn’t all it’s made out to be Oreo 8.1 rocks!

N1NJATH3ORY said:
Hey let me know if you succeed, as I’m thinking of downgrading as well. ONE UI PIE-9 isn’t all it’s made out to be Oreo 8.1 rocks!
Click to expand...
Click to collapse
Downgrading is no problem atm, i downgraded from CSA2 to ARL3 . I flashed the non-home csc though for a factory reset.

gee2012 said:
Downgrading is no problem atm, i downgraded from CSA2 to ARL3 . I flashed the non-home csc though for a factory reset.
Click to expand...
Click to collapse
Thanks do you have a fast mirror ? Sammobile sucks only good if your a paid member and updato is dead links ain't working.. i need N960FXXS2ARL3 / December patch 2018 BTU ? Thanks

N1NJATH3ORY said:
Thanks do you have a fast mirror ? Sammobile sucks only good if your a paid member and updato is dead links ain't working.. i need N960FXXS2ARL3 / December patch 2018 BTU ? Thanks
Click to expand...
Click to collapse
Get SamFirm.exe https://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647.
Link https://forum.xda-developers.com/attachment.php?attachmentid=3803841&d=1467715462.

gee2012 said:
Get SamFirm.exe https://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647.
Link https://forum.xda-developers.com/attachment.php?attachmentid=3803841&d=1467715462.
Click to expand...
Click to collapse
You Rock! Thanks

I am a complete newbie... with that said, I HATE the new android Pie. Can someone help me downgrade back to Oreo? I'm reading the thread and I have no idea what you people are talking about.

cgz1992 said:
I am a complete newbie... with that said, I HATE the new android Pie. Can someone help me downgrade back to Oreo? I'm reading the thread and I have no idea what you people are talking about.
Click to expand...
Click to collapse
You need to download SAMFIRM.EXE ---> Get SamFirm.exe https://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647. Do you know your old firmware ? Luckily i had a screen shot of my old firmware i'm back on Oreo 8.1 way better Or what's your Note-9 Model number ? Or Where did you purchase your Note-9 from Country Supplier Sim Free Etc ?

N1NJATH3ORY said:
You need to download SAMFIRM.EXE ---> Get SamFirm.exe https://forum.xda-developers.com/gal...mware-t2988647. Do you know your old firmware ? Luckily i had a screen shot of my old firmware i'm back on Oreo 8.1 way better Or what's your Note-9 Model number ? Or Where did you purchase your Note-9 from Country Supplier Sim Free Etc ?
Click to expand...
Click to collapse
Im sorry but the page of the link you provided could not be found. Model # is SM-N960F/DS. Im pretty sure I was on Oreo 8.1, I just recently bought this Note 9 in Thailand from the official Samsung Store.

cgz1992 said:
Im sorry but the page of the link you provided could not be found. Model # is SM-N960F/DS. Im pretty sure I was on Oreo 8.1, I just recently bought this Note 9 in Thailand from the official Samsung Store.
Click to expand...
Click to collapse
If you want to go back to Thailand firmware,it's one of the two versions here (MYM) or (THL) :
https://updato.com/firmware-archive...xact=1&r=MYM,THL&v=Oreo(Android+8.1.0)&rpp=15
MYM: https://updato.com/firmware-archive-select-model?record=F0560E6C04E111E99F15FA163EE8F90B
THL: https://updato.com/firmware-archive-select-model?record=77A08C7904B011E99F15FA163EE8F90B

cgz1992 said:
Im sorry but the page of the link you provided could not be found. Model # is SM-N960F/DS. Im pretty sure I was on Oreo 8.1, I just recently bought this Note 9 in Thailand from the official Samsung Store.
Click to expand...
Click to collapse
Please try now it's fixed sorry about that!!

These are all the firmware’s i found for your country as there are 2 provider for you country Thailand.. (SEE PIC) i got a feeling you will be on (THL) i could be wrong man I’m not 100% sure.. i hope someone answers you as i am kind of guessing, I don’t want to mess up your NOTE-9 for you!
i heard somewhere flashing wrong firmware, can make you lose OEM LOCK!! Why not try this launch SAMFIRM.EXE and input firmware from pic or try this first launch SAMFIRM.EXE and select auto to see if it picks up the firmware you need to download Oero 8.1!!

I have never used ODIN before and wanted to know if I need to be rooted to be able to downgrade from Pie to last Oreo firmware?
Also if doing so will cause a factory reset and will I loose the data.
Thanks.

dexter10478 said:
I have never used ODIN before and wanted to know if I need to be rooted to be able to downgrade from Pie to last Oreo firmware?
Also if doing so will cause a factory reset and will I loose the data.
Thanks.
Click to expand...
Click to collapse
No root is needed to dowgrade!! You will lose all your data! So make a back up before you proceed!

N1NJATH3ORY said:
No root is needed to dowgrade!! You will lose all your data! So make a back up before you proceed!
Click to expand...
Click to collapse
Will that affect Knox and Secure Folder feature in anyway?
If not, then this seems to be the Samsung approved official method of flashing firmware. Is that so?
Thanks

dexter10478 said:
Will that affect Knox and Secure Folder feature in anyway?
If not, then this seems to be the Samsung approved official method of flashing firmware. Is that so?
Thanks
Click to expand...
Click to collapse
No Knox will stay 0x0 as your flashing official firmware.. Root and Roms trip Knox and secure folder S,Health etc. So you can flash away regular firmware without any issues!

N1NJATH3ORY said:
No Knox will stay 0x0 as your flashing official firmware.. Root and Roms trip Knox and secure folder S,Health etc. So you can flash away regular firmware without any issues!
Click to expand...
Click to collapse
I'm hoping someone can further clarify the steps needed to downgrade to Oreo. I have the 96OU unlocked US version and I upgraded using the modded Odin method for US Snapdragon versions in the Guides section. I do not like the carrier bloat that was added to my phone and would like to revert back to 8.1. I went to SamMobile and looked up my firmware which I believe is N96OU1UEU1ARL1, my actual model is SMN96OU1ZKFX. I have downloaded Odin3 v3.13.1. I originally used Odin3 v3.13.1 3B patchedD to upgrade. Do I run Odin (non-patched) then input the BL, AP, CP and CSC files from the extracted 1ARL1 file and select Auto reboot and F.Reset Time only, not re-partition? Can I use the patched version of Odin if I want?
I have been looking for a step by step tutorial for this but just can't find one.

Question Flash T-Mobile firmware on unlocked S21 ultra

I'll admit I'm a noob, but I was wondering if there were guides or a way to flash the official T-Mobile carrier firmware on an unlocked s21 ultra by chance? If anyone can point me in the right direction please. Thank you and sorry if it's a dumb question.

fil.lujan said:
I'll admit I'm a noob, but I was wondering if there were guides or a way to flash the official T-Mobile carrier firmware on an unlocked s21 ultra by chance? If anyone can point me in the right direction please. Thank you and sorry if it's a dumb question.
Click to expand...
Click to collapse
The SM-G998U1 is Multi-CSC Device (OYN). Change the CSC to TMO by entering the following code on the TouchPad. *#272*YOURIMEINUMBER# Select TMO then install.

varcor said:
The SM-G998U1 is Multi-CSC Device (OYN). Change the CSC to TMO by entering the following code on the TouchPad. *#272*YOURIMEINUMBER# Select TMO then install.
Click to expand...
Click to collapse
I had tried that, it states "unable to process request" Appreciate your help though.

fil.lujan said:
I had tried that, it states "unable to process request" Appreciate your help though.
Click to expand...
Click to collapse
Is it a US Device (Snapdragon)?

varcor said:
Is it a US Device (Snapdragon)?
Click to expand...
Click to collapse
Yes. Sm-g998u1

fil.lujan said:
Yes. Sm-g998u1
Click to expand...
Click to collapse
Apparently I read with android 11 changing csc isn't allowed?

fil.lujan said:
Apparently I read with android 11 changing csc isn't allowed?
Click to expand...
Click to collapse
If that's the case you can download Tmobile firmware and flash to your device.
downloading/flashing Tmobile firmware to S20Ultra unlocked
I really want Tmobile's advanced messaging feature back. I downloaded Frija (to download the firmware images) My assumption is that since I have model number SM-G988U1 and want to flash tmobile's firmware I need to use SM-G988U with CSC as TMB to download the correct firmware. Is this...
forums.androidcentral.com
fil.lujan said:
Apparently I read with android 11 changing csc isn't allowed?
Click to expand...
Click to collapse
Haven't read that, this post may help.
[GUIDE] Change your CSC on any Samsung Galaxy devices running Android 10 or older - will also work in Android 11 for builds older than January 2021
Hello everyone! I made this video tutorial regarding changing the CSC on your Samsung Galaxy device. This method will work for Android 10 and older, and Android 11 (builds older than January 2021). Credits to...
forum.xda-developers.com

varcor said:
If that's the case you can download Tmobile firmware and flash to your device.
downloading/flashing Tmobile firmware to S20Ultra unlocked
I really want Tmobile's advanced messaging feature back. I downloaded Frija (to download the firmware images) My assumption is that since I have model number SM-G988U1 and want to flash tmobile's firmware I need to use SM-G988U with CSC as TMB to download the correct firmware. Is this...
forums.androidcentral.com
Haven't read that, this post may help.
[GUIDE] Change your CSC on any Samsung Galaxy devices running Android 10 or older - will also work in Android 11 for builds older than January 2021
Hello everyone! I made this video tutorial regarding changing the CSC on your Samsung Galaxy device. This method will work for Android 10 and older, and Android 11 (builds older than January 2021). Credits to...
forum.xda-developers.com
Click to expand...
Click to collapse
Thank you for your input, I'll check those out. Appreciate you writing and posting these.

fil.lujan said:
Thank you for your input, I'll check those out. Appreciate you writing and posting these.
Click to expand...
Click to collapse
Once last question, forgive my ignorance. Once I flash from the unlocked version to the T-Mobile branded firmware, will I need to manually flash each update that comes out for T-Mobile do you know?

fil.lujan said:
Once last question, forgive my ignorance. Once I flash from the unlocked version to the T-Mobile branded firmware, will I need to manually flash each update that comes out for T-Mobile do you know?
Click to expand...
Click to collapse
You SHOULD receive Tmobile updates once you're on Tmobile firmware and network but I don't think it's something that can be guaranteed. Your Primary CSC can't be changed to TMO and therin lies the problem. In the last couple of years Samsung has complicated firmware and CSC transitions on it's numerous array of devices. Lots of potential users lean to an unlocked device thinking they'll have more freedom of choice but it won't always end up as a benefit. I always recommend buying your service provider's device for full functionality but it doesn't always work out since some users tend to swap service provider's on a regular basis.

I'm on T-mobile's network, month to month, no long term commitment which adds flexibility but even being on their network I didn't aquire their Branded Device. I have the Hong Kong SM-G9980 variant. I couldn't care less about 5G, to me it's the biggest marketing scam since light beer. The only other feature I lose is Carrier Aggregation which much like 5G enables faster download speeds. I can easily have my laptop handle this and transfer files or data to my device. So there's no carrier bloatware, the bootloader is unlocked, I get updates from Samsung typically sooner than US devices and still have Wi-Fi Calling and VoLTE via Tmobile. Most users don't do much research to define which device is best suited for their needs. "I got this great deal on an S21 Ultra but..." We can point the finger at Samsung as well, way too many variants leads to a lot of problems.

varcor said:
You SHOULD receive Tmobile updates once you're on Tmobile firmware and network but I don't think it's something that can be guaranteed. Your Primary CSC can't be changed to TMO and therin lies the problem. In the last couple of years Samsung has complicated firmware and CSC transitions on it's numerous array of devices. Lots of potential users lean to an unlocked device thinking they'll have more freedom of choice but it won't always end up as a benefit. I always recommend buying your service provider's device for full functionality but it doesn't always work out since some users tend to swap service provider's on a regular basis.
Click to expand...
Click to collapse
One last question. In order to go from the Samsung unlocked version to flash the TMobile firmware, does the bootloader need to be unlocked? Sorry for the numerous questions

fil.lujan said:
One last question. In order to go from the Samsung unlocked version to flash the TMobile firmware, does the bootloader need to be unlocked? Sorry for the numerous questions
Click to expand...
Click to collapse
No

varcor said:
No
Click to expand...
Click to collapse
Thank you so much for all your help. I do appreciate you.

Hello did it work out?

TwistedTester said:
Hello did it work out?
Click to expand...
Click to collapse
It did actually. Noticing my speeds are a bit faster and more consistent and getting rcs through Samsung messages to people even using Google messages on other carriers

fil.lujan said:
It did actually. Noticing my speeds are a bit faster and more consistent and getting rcs through Samsung messages to people even using Google messages on other carriers
Click to expand...
Click to collapse
What did you do? What were the steps to flashing new csc? I’m on Verizon and I wanna go over to T-Mobile

TwistedTester said:
What did you do? What were the steps to flashing new csc? I’m on Verizon and I wanna go over to T-Mobile
Click to expand...
Click to collapse
I downloaded the firmware from SamMobile and Odin then flashed it. I had the unlocked version I purchased from Samsung directly. when selecting the csc portion but it still shows the xaa portion as well. Not sure if I did it wrong but seems to be working for me. Putting it in download mode requires holding volume up/down and power. Every site I visited told the wrong directions

fil.lujan said:
I downloaded the firmware from SamMobile and Odin then flashed it. I had the unlocked version I purchased from Samsung directly. when selecting the csc portion but it still shows the xaa portion as well. Not sure if I did it wrong but seems to be working for me. Putting it in download mode requires holding volume up/down and power. Every site I visited told the wrong directions
Click to expand...
Click to collapse
Oh okay okay, did you have to use Sam key after to switch csc? No right cause T-Mobile already worked.

TwistedTester said:
Oh okay okay, did you have to use Sam key after to switch csc? No right cause T-Mobile already worked.
Click to expand...
Click to collapse
No I just did the firmware. Didn't do anything else with csc. Heard that's a pain in the ass with android 11

Question Flashing Unbranded 998U1 FW on VZW S21 Ultra 5G Variant

Good morning
I'm looking for global FW and I can't seem to find one that has bootloader version 5. My VZW phone just got an update on Jan 24 and evidently updated the BL to V.5
The most recent SM-G998U1 firmware only shows bootloader version 4. Am I just stuck? Any guidance is way appreciated!

Not sure what you mean by global FW, probably unbranded US FW.
You will just have to wait until G998U1 FW with BL 5 is released. Basically stuck until then...

OnnoJ said:
Not sure what you mean by global FW, probably unbranded US FW.
You will just have to wait until G998U1 FW with BL 5 is released. Basically stuck until then...
Click to expand...
Click to collapse
That's exactly what I mean. Thank you. Seems weird that a carrier is first to release anything!

dmullen1373 said:
That's exactly what I mean. Thank you. Seems weird that a carrier is first to release anything!
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BULH (G998U1UEU5BULH) has just been released standalone check SAMMobile for G998U1
G998U is for US carrier FW
G998U1 is for unbranded US FW.
Both are interchangeable for Snapdragon US S21 Ultras
My phone is AT&T but I have been using G998U1 for a while now.

suphion said:
BULH (G998U1UEU5BULH) has just been released standalone check SAMMobile for G998U1
G998U is for US carrier FW
G998U1 is for unbranded US FW.
Both are interchangeable for Snapdragon US S21 Ultras
My phone is AT&T but I have been using G998U1 for a while now.
Click to expand...
Click to collapse
Awesome! Thanks for the heads up!

I just posted a thread on how to carrier unlock the same exact phone and FW/BL you are using, this may also lead to possible BL unlock later on, but may help you for now if you just trying to use a different carrier. Otherwise, yah, you are stuck for now, can't downgrade the bootloader. (As far as I know of yet)

Thanks for all of the advice and insight. Mucho appreciado.
My goal here is to purely load the non-carrier specific FW while maintaining my ability to use VZW and still have mmWave or UWB support. Also, VZW removed the ability to do "calls on other devices" like a Samsung tablet. That feature was removed on VZW FW but worked fine on an unlocked Note 20 Ultra that I had a few months back. Loading this G998U1 FW should make it act like a direct-from-Samsung phone, right? I don't really care about an unlocked BL or unlocked SIM slot, at the moment, as I'm staying with VZW. Thanks in advance!

suphion said:
BULH (G998U1UEU5BULH) has just been released standalone check SAMMobile for G998U1
G998U is for US carrier FW
G998U1 is for unbranded US FW.
Both are interchangeable for Snapdragon US S21 Ultras
My phone is AT&T but I have been using G998U1 for a while now.
Click to expand...
Click to collapse
And just to confirm, we'd want the XAA version, yeah? That's the non-carrier-specific FW?

dmullen1373 said:
And just to confirm, we'd want the XAA version, yeah? That's the non-carrier-specific FW?
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SamMobile has download speeds equivalent to dial-up internet, unless you pay them for a premium membership.
SamFW.com is fast and free

dmullen1373 said:
And just to confirm, we'd want the XAA version, yeah? That's the non-carrier-specific FW?
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Click to collapse
That is what I do, and I believe you are right. Other versions may also be same or may be just as fine, but go for unknown XAA regardless.
iBowToAndroid said:
SamMobile has download speeds equivalent to dial-up internet, unless you pay them for a premium membership.
SamFW.com is fast and free
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Click to collapse
You are right, their free dl is slow, but the others dont have it yet, so if you need it asap, their dl is the best you can get as of today. I am sure samfw and frija will have it soon.

suphion said:
You are right, their free dl is slow, but the others dont have it yet, so if you need it asap, their dl is the best you can get as of today. I am sure samfw and frija will have it soon.
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Incorrect. SamFW already has it. Do you really think that I would recommend a site without checking first?

iBowToAndroid said:
Incorrect. SamFW already has it. Do you really think that I would recommend a site without checking first?
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Dude, chill, when I wrote the initial post, they didnt.

suphion said:
Dude, chill, when I wrote the initial post, they didnt.
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Click to collapse
Yes, they did already have it.
You wrote your post 20 minutes ago, while my post was 2 hours ago. And I checked before making my post, so you clearly did not check before making yours

iBowToAndroid said:
Yes, they did already have it.
You wrote your post 20 minutes ago, while my post was 2 hours ago. And I checked before making my post, so you clearly did not check before making yours
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Please look a little bit more up before accusing others ok.

suphion said:
Please look a little bit more up before accusing others ok.
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Even if you're referring to your post from 10 hours ago:
Where you do think SamMobile and SamFW get the firmware from....???
They get it straight from Samsung's servers, using tools like Frija and others. So SamFW may not have uploaded it yet (as of the timestamp of your post from 10 hours ago), but if SamMobile already had it, then Frija definitely did - because that's always the first and earliest available firmware source, since it pulls straight from Samsung's servers

Thanks for everybody's help! I'm going to take the plunge here -- looking to download the modded/patched version of ODIN and flash this sucker. *fingers crossed*

If I flash this on my AT&T branded s21 ultra, will I lose any features?

This worked great on my VZW variant -> unbranded -- flash took about 3 minutes. I did do a factory reset prior to the ODIN flash just to ensure that Google or Samsung didn't have any weird reactivation-type lock on the device. Thanks again for the help!
As far as the Samsung "allow calls on other devices" option, that does NOT work on VZW, for whatever reason -- when I initiate a call via the S7 tablet, I get an error that essentially states that it "Can't Make Calls. Make sure that your phone and tablet are connected to the same wifi network." Huge bummer! I'll keep trying. I know that when I had an unlocked, direct from Samsung Note 10+ and the S6 tablet, this feature worked perfectly. Fast forward and I no longer have either device and it's not working. Any thoughts are welcomed!

dtomlin said:
If I flash this on my AT&T branded s21 ultra, will I lose any features?
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Click to collapse
I lost nothing featurewise - still getting 5G mmWave and the WiFi calling is working.