Need some direction. - Samsung Galaxy S9 Questions & Answers

I am trying to flash a Tmobile s9+ (SM-G965U) to Metro PCS. Any direction would be greatful, Thank you.

jkey7 said:
I am trying to flash a Tmobile s9+ (SM-G965U) to Metro PCS. Any direction would be greatful, Thank you.
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flash this via the patched version of Odin which will allow for flashing of firmware not originally intended for this device(sunce the firmware i linked was unbranded), obtainable here with the phone in download mode. The firmware file youll download will have 2 files that are similar, CSC and HOME_CSC. CSC will factory reset the phone while HOME_CSC wont. If you flash CSC, you will lose every bit of data on the phone. Once that is done, the phone will no longer be branded and wont have any T-Mob stuff on it. It might just work after you flash that, but likely wont as its probably locked to T-Mob. If that is the case, then youll have to buy an unlock code from the netterwebz, which averages about $30
if the Odin stuff is new to you, let me know. Its not hard, its just odd at first.
also, if you flash the unbranded firmware, you can go back to the t-mob version as long as you can download the firmware from somewhere

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please help need advice !!!!

I need help, I don't know wtf I was thinking, my sprint s6 is on CPF4 and sim UnLocked, I was going to upgrade to PL3, with Odin, run CF-Auto Root Next, Then TWRP, Then Flash TDH-JR v1.0 .... I Ran CF-Autoroot First like a idiot, I'm rooted on CPF4, tried to go ahead and remain calm and used Flashify to Flash TWRP, only to get stock recovery and if it worked was going to stay on CPF4 and figure something out but, this phone is Sim Unlocked, and I'm starting to worrying I'm going to lose it
UPDATE: SOLVED , NOW ROCKIN DEBLOATED. JAH, ITS BADASS, INSTALLING BLACKED OUT EVERYTHING RIGHT NOW!!! QUESTIONS JUST ASK, OR ILL BE BACK TO TELL WHAT I DID WRONG
Ps: HAHA AND IM STILL UNLOCKED USING METROPCS
Did you get sorted out or do you still need help? Typically if you update an unlocked phone's firmware, you will be locked again and will need to unlock. Not what you want to hear, I am sure, but that is as much as I know on the topic.
not for me. I am using an unlocked S6 Sprint now outside US and have been updating firmware so many times, the phone wont be locked again UNLESS you change the CSC (SPR, XAS...).
yaibakt said:
not for me. I am using an unlocked S6 Sprint now outside US and have been updating firmware so many times, the phone wont be locked again UNLESS you change the CSC (SPR, XAS...).
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Interesting and I did not know that. How would the OP know if it was safe to upgrade? Check that his current (or prior version, not sure where he is in the process) was SPR and then proceed to use a TAR that was the same?
koop1955 said:
Interesting and I did not know that. How would the OP know if it was safe to upgrade? Check that his current (or prior version, not sure where he is in the process) was SPR and then proceed to use a TAR that was the same?
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Not necessary either.
I did tried to download different tar files of the same Sprint firmware version which are SPR, XAS,... and guess what? They are exactly the same, even every bit.
That means, OP could flash any csc tar file, as long as its for s6 sprint (g920p***** tar file). The phone stays unlocked still.
The only thing that locked my s6 back was when i used Samsung phone info app to change the CSC. The phone rebooted and locked. I had to unlocked it again and it costed me some bucks...
How did you unlock your phone?

What happens if I don't flash the CSC file through Odin?

Would not flashing the CSC mean that I have a stock ROM without any AT&T bloatware on the phone? Or am I completely misunderstanding the importance of the CSC file?
I live outside the US and so I don't need anything specific for AT&T on my S7 Active.
EDIT: To clarify, I would be flashing the AP, BL and CP files through Odin, downloaded from this post because I can't get OTA updates outside of the USA.
FandangoMcGee said:
Would not flashing the CSC mean that I have a stock ROM without any AT&T bloatware on the phone? Or am I completely misunderstanding the importance of the CSC file?
I live outside the US and so I don't need anything specific for AT&T on my S7 Active.
EDIT: To clarify, I would be flashing the AP, BL and CP files through Odin, downloaded from this post because I can't get OTA updates outside of the USA.
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My best guess is that at worst you'd make the phone not bootable and you'd need to reflash with Odin and at best your phone would work but with the previous CSC image. It already has one in it and it won't go away so by not flashing you're just leaving the older one in place. I don't think there's any possible gain for you by not flashing it.
I didn't flash the BL file and now my phone says no sim card inserted what should i do?

Flashed TMobile firmware but no T-Mobile apps or splash screen

I just flashed the TMobile firmware through Odin and it looks identical to the unlocked firmware. The LTE did not change and I'm not getting video calling. Any suggestions?
stu5797 said:
I just flashed the TMobile firmware through Odin and it looks identical to the unlocked firmware. The LTE did not change and I'm not getting video calling. Any suggestions?
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What is your firmware now? It sounds like it didn't update.
Sent from my SM-N975U1 using Tapatalk
Thanks for the response. Here is a pic of the firmware and the files I flashed from sammobile
stu5797 said:
I just flashed the TMobile firmware through Odin and it looks identical to the unlocked firmware. The LTE did not change and I'm not getting video calling. Any suggestions?
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You first need to flash the unlocked firmware (U1), then boot up with your Tmobile sim installed. You'll see something about carrier settings being applied, and then you can go flash the U firmware
Read carefully through the steps from this thread: https://forum.xda-developers.com/galaxy-note-10+/how-to/n975u-n975u1-firmware-links-t3957648
I am seeing the same thing as stu5797.
I purchased a Note 10+ Unlocked (blue, 256Gb), since the Unlocked had better trade-in value on my old phone.
Went to https://forum.xda-developers.com/galaxy-note-10+/how-to/n975u-n975u1-firmware-links-t3957648 for flashing the T-Mo software, so I could get the carrier specific things.
Since I already had the U1 (as it was purchased unlocked), I did not re-flash the U1 package.
I installed my SIM card, booted the phone. Waited for it to say it was rebooting to apply carrier settings. Completed reboot. Shut down. Started in Download mode. Installed the USERDATA_TMB_N975USQU1ASGO_CL16450385_QB24967230_REV00_user_low_ship_MULTI_CERT.tar.md5 from the "U firmware" link. Booted after the install, and proceeded to set up my phone.
After I had done some significant setup, my phone informed me that there was a firmware update ready to go. I let it install, and it upgraded from SGO to SH4. Downloaded Phone Info to compare against Stu, and found everything identical, with the exception of a single character. My product code is SM-N975UZBATMB.
I do not see an option for video calling, no T-Mo boot animation, and no LTE+ indicator. Not sure what else might be missing/different.
I hope this description is helpful in figuring out where Stu and I went wrong. More, I hope there is a fix that doesn't require wiping the phone, as I've probably invested 8+ hours in setup on this one so far.
Thank you for any assistance.
I figured it out and you wont lose any data. Install this in Odin in the CSC spot HOME_CSC_OMC_OYN_N975UOYN1ASH4_CL16618444_QB25286449_REV00_user_low_ship_MULTI_CERT
from the "U firmware."
This wont wipe data and will give you all the Tmobile features like HD calling, 4g LTE, tmobile splash screen etc.
Hope this will help!
stu5797 said:
I figured it out and you wont lose any data. Install this in Odin in the CSC spot HOME_CSC_OMC_OYN_N975UOYN1ASH4_CL16618444_QB25286449_REV00_user_low_ship_MULTI_CERT
from the "U firmware."
This wont wipe data and will give you all the Tmobile features like HD calling, 4g LTE, tmobile splash screen etc.
Hope this will help!
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If we flash this only we will lose OTA support yeah?
Sent from my SM-N970U1 using Tapatalk
stu5797 said:
I figured it out and you wont lose any data. Install this in Odin in the CSC spot HOME_CSC_OMC_OYN_N975UOYN1ASH4_CL16618444_QB25286449_REV00_user_low_ship_MULTI_CERT
from the "U firmware."
This wont wipe data and will give you all the Tmobile features like HD calling, 4g LTE, tmobile splash screen etc.
Hope this will help!
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Yup, that did it!
Turns out, I had misunderstood the instructions to flash the U firmware alongside the Userdata file. The last time I fiddled with my firmware, it was all one file.
So I downloaded the TMB SH4 firmware, flashed the BL/AP/CP/HOME_CSC, and it looks to be working like a champ. Got the TMB splash on startup, 4G LTE icon, video call showing up in the dialer...
Thanks!
---------- Post added at 12:40 AM ---------- Previous post was at 12:36 AM ----------
EggNogg421 said:
If we flash this only we will lose OTA support yeah?
Sent from my SM-N970U1 using Tapatalk
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I do not expect that this will cost you OTA support. I started with the SGO U1 software, flashed just the TMB USERDATA (didn't actually get any of the other files in there, because I misunderstood the instructions), and still got an OTA to SH4.
Ford thanks so much for the nice gesture but I could not accept. You are a very generous person. The reason why I can't accept is I am not an expert on this subject and should buy you a coffee. I only flashed that home_csc TMobile file and everything seems perfect but I don't get otas( not a big deal to me)
When you flashed Ford, did you also flash that TMobile userdata file with the TMobile home csc and the other TMobile files? Thanks buddy
This is all still quite confusing. I wish there was an updated thread with a set of instructions on exactly how to change the stock Unlocked phone to a T-Mobile or other carrier model with pictures or even a video with step by step.
I should be getting my backordered Note10+ Unlocked from Sammy in the next few weeks and this is the first thing I am going to do is make it a T-Mobile device will all the apps and boot animations. I'd like to have all my ducts in a row with everything downloaded and instructions in hand so I can hit the ground running on day 1.
BigMosley said:
This is all still quite confusing. I wish there was an updated thread with a set of instructions on exactly how to change the stock Unlocked phone to a T-Mobile or other carrier model with pictures or even a video with step by step.
I should be getting my backordered Note10+ Unlocked from Sammy in the next few weeks and this is the first thing I am going to do is make it a T-Mobile device will all the apps and boot animations. I'd like to have all my ducts in a row with everything downloaded and instructions in hand so I can hit the ground running on day 1.
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It will work the same as the previous models. When you get your device, out your TMO SIM card in and let it provision for TMO.
Download the TMobile firmware. You'll get five files. BL, AP, CP, CSC, HOME_CSC, and USERDATA.
I'm assuming you have ADB, FASTBOOT, and Samsung drivers all set up on your computer.
Use ODIN 3.13.1_3B to flash the new firmware. Just place the files in the appropriate spots. Use CSC and ignore HIME_CSC.
Put your phone in download mode. I believe this year you shut it off, then while holding both volume up and down, insert the USB cable.
Then hit start on ODIN.
Mr. Orange 645 said:
It will work the same as the previous models. When you get your device, out your TMO SIM card in and let it provision for TMO.
Download the TMobile firmware. You'll get five files. BL, AP, CP, CSC, HOME_CSC, and USERDATA.
I'm assuming you have ADB, FASTBOOT, and Samsung drivers all set up on your computer.
Use ODIN 3.13.1_3B to flash the new firmware. Just place the files in the appropriate spots. Use CSC and ignore HIME_CSC.
Put your phone in download mode. I believe this year you shut it off, then while holding both volume up and down, insert the USB cable.
Then hit start on ODIN.
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Should I completely boot up the Unlocked model and install the day one update first?
BigMosley said:
Should I completely boot up the Unlocked model and install the day one update first?
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There's no reason to
stu5797 said:
I only flashed that home_csc TMobile file and everything seems perfect but I don't get otas( not a big deal to me)
When you flashed Ford, did you also flash that TMobile userdata file with the TMobile home csc and the other TMobile files? Thanks buddy
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I thought about it a little more, and it is possible that we will lose the OTAs. When I flashed the USERDATA, I wasn't properly fully on the TMB SGO. It is possible that the OTA was the one intended for the U1, and that is what I got updated. I will keep an eye out for when TMB releases an OTA after SH4, and see if I get it then.
I would expect it to work properly, given that the hardware is identical, and, at that point, will be entirely on the TMB firmware.
The order I did things in was:
U1 boot with TMB SIM card inserted
Waited for "Reboot to provision carrier data" or something like that (very shortly after booting, did not set anything up)
Waited for reboots to complete
Booted into Download Mode, installed TMB USERDATA (SGO) with Odin
Thought I was properly on TMB firmware because I saw WiFi Calling in my settings, so proceeded to restore from Samsung Cloud backups / copy data with SmartSwitch
Several hours into this, received notification of OTA update to SH4
Allowed update to complete, continued working with phone
Next day, realized I was missing TMB boot animation, noticed this thread
Read through, provided my experiences
Saw your post on the fix
Went back to original flashing post, saw my mistake
Didn't see the SH4 firmware in the "U Firmware" link, so tried to get it another way
Got annoyed with SamMobile, found and downloaded Frija, installed the framework files necessary
Used Frija to download SM-N975U/TMB SH4 firmware
Extracted files from .zip
Flashed BL / AP / CP / HOME_CSC. Did not flash the non-HOME CSC, nor the USERDATA, as either would result in a wipe of the setup I had done so far
Rebooted, got TMB boot animation, waited a while for update (sat at boot animation for maybe a minute, give or take, looked frozen, was not)
Checked the phone, found LTE icon now read "4G LTE", contacts now had Video Calling as an option.
Phone Info now shows "Phone Model" as SM-N975U (pretty sure it was showing as a U1 before)
As far as I can tell, everything thinks I have a N975U/TMB as this point, so I expect things to work as though it were.
Oh, also, the other versions from Phone Info no longer match what you had posted earlier, stu. Attaching the Firmware page screenshot.
Edit:
On further review, the "Available CSC Codes" has also changed.
Was: ACG, AIO, ATT, BST, CCT, CHA, GCF, LRA, SPR, TFN, TMB, TMK, USC, VMU, VZW, XAA, XAG, XAR, XAS
Now: BST, SPR, TMB, VMU, XAS, ATT, CCT, CHA, GCF, USC, VZW, XAA
I flashed to TMobile (flashed all files but userdata) from unlocked, no wipe. When I got into updates I get the following:
I get that as well pcriz. I am assuming to get TMobile otas you have to flash all files including USERDATA. Flashing userdata will erase data so you should use the regular csc when flashing if you want true otas.
stu5797 said:
I get that as well pcriz. I am assuming to get TMobile otas you have to flash all files including USERDATA. Flashing userdata will erase data so you should use the regular csc when flashing if you want true otas.
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Nothing I enjoy more than setting up my phone when I should be sleeping.
I'll give it a try, maybe that will bring back visual voicemail in the dialer
guys can you confirm that FM Radio tuner is not more enabled ?
wolfgart said:
guys can you confirm that FM Radio tuner is not more enabled ?
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The app fails to connect. Could be disabled. Could be gone

ATT Firmware?

Quick easy question. I've been out of the game too long.
If I have the US unlocked Note 10+. It's a N975U1, and I want to use volte, the only way currently is to flash the ATT firmware files via odon correct? Could anyone point me to the files I would need?
If there is a way without a full firmware flash that would be awesome, but I dont think there is.
Thanks!
pedal2themedal said:
Quick easy question. I've been out of the game too long.
If I have the US unlocked Note 10+. It's a N975U1, and I want to use volte, the only way currently is to flash the ATT firmware files via odon correct? Could anyone point me to the files I would need?
If there is a way without a full firmware flash that would be awesome, but I dont think there is.
Thanks!
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Soooooo usually you can flash the user data from the U firmware to achieve that. But I dont think it works on the latest but download Frija and type in N975U and for csc use USC and it will download the latest firmware for you. From there just flash in patched Odin 3.11.3B and preferably use the non Home csc to wipe your userdata so its clean.
Correct me if I'm wrong, but isn't ATT about to release volte support because 3g calling is shutting down at the end of the uear?
pedal2themedal said:
Correct me if I'm wrong, but isn't ATT about to release volte support because 3g calling is shutting down at the end of the uear?
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Supposedly

Going back to stock?

I'm selling a SIM-unlocked Samsung phone that was originally from Verizon. If I flash it back to stock, does it automatically detect what SIM it has and just "adds" those carrier apps? 'Cause it seemed like it did that when I had it on MetroPCS and T-Mobile. Or is that just on jrkruse's ROM? How would I get this back to stock so it can get security patches again?
I have downloaded a firmware file named "SM-G955U_1_20191002135553_sh0v99vvjn_fac," is this the latest?
GuyInDogSuit said:
I'm selling a SIM-unlocked Samsung phone that was originally from Verizon. If I flash it back to stock, does it automatically detect what SIM it has and just "adds" those carrier apps? 'Cause it seemed like it did that when I had it on MetroPCS and T-Mobile. Or is that just on jrkruse's ROM? How would I get this back to stock so it can get security patches again?
I have downloaded a firmware file named "SM-G955U_1_20191002135553_sh0v99vvjn_fac," is this the latest?
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I dont know what that firmware is. That's not from a legit site it seems. I would use updato or sammobile. For the latest. And yes if you put a multi csc stock firmware it will auto detect sim and personalize accordingly
TheMadScientist said:
I dont know what that firmware is. That's not from a legit site it seems. I would use updato or sammobile. For the latest. And yes if you put a multi csc stock firmware it will auto detect sim and personalize accordingly
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That's why I'm kind of hesitant to flash it back to stock. But I might have someone interested in it as it is, so I just factory reset it and will wait on a response.

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