Note 10+ unlocked Tmobile issues

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djelmonstruo

Senior Member
Jul 25, 2008
113
10
Indeed... The unlocked firmware has been flawless on T-mobile.

Definitely can't complain...

* For those that missed the previous post see below.

So I have the unlocked USA version is the note10+ and I was thinking of flash the T-Mobile firmware. The get the missing feature I am losing (video calling and volte) so not recommend it?
 
So I have the unlocked USA version is the note10+ and I was thinking of flash the T-Mobile firmware. The get the missing feature I am losing (video calling and volte) so not recommend it?

You already have VoLTE. The only thing you're missing with the U1 Firmware is video calling, RCS text messaging, and a magenta boot screen animation.
 
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cjxsutton

Senior Member
Nov 3, 2011
110
34
Panama City Beach, FL
Easiest way is to install t-mobile firmware on unlocked version to enjoy all the benefits along with faster carrier updates https://www.sammobile.com/sams...ote-10-plus/firmware/SM-N975U/

Sent from my SM-N975U using Tapatalk

https://www.sammobile.com/samsung/galaxy-note-10-plus/firmware/SM-N975U1/TMB/

Here's the one he'll want if he had an unlocked one before.

My question is this -
I have already spent a lot of time setting up Nova Launcher, custom widgets and icons, etc - will flashing the T-Mobile Firmware cause me to lose all this stuff? Or will it just change how some of the innards work?

---------- Post added at 01:30 PM ---------- Previous post was at 01:28 PM ----------

You already have VoLTE. The only thing you're missing with the U1 Firmware is video calling, RCS text messaging, and a magenta boot screen animation.

How do you know you have VoLTE? I don't see anything about it anywhere in the phone settings, and my calls don't have that crisp digital sound that they had on my Pixel 2XL that also used to show "HD Voice" on the screen during calls (my unlocked Note 10+ does not show that and I also wouldn't describe my calls as being "HD"). I do have Wifi calling already, though.
 
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chowdarygm

Senior Member
Sep 4, 2009
872
173
Chicago, IL
https://www.sammobile.com/samsung/galaxy-note-10-plus/firmware/SM-N975U1/TMB/

Here's the one he'll want if he had an unlocked one before.

My question is this -
I have already spent a lot of time setting up Nova Launcher, custom widgets and icons, etc - will flashing the T-Mobile Firmware cause me to lose all this stuff? Or will it just change how some of the innards work?

---------- Post added at 01:30 PM ---------- Previous post was at 01:28 PM ----------



How do you know you have VoLTE? I don't see anything about it anywhere in the phone settings, and my calls don't have that crisp digital sound that they had on my Pixel 2XL that also used to show "HD Voice" on the screen during calls (my unlocked Note 10+ does not show that and I also wouldn't describe my calls as being "HD"). I do have Wifi calling already, though.

It will reset the full device, so better to take backup before doing anything

Sent from my Auto Glow Note 10+ using Tapatalk
 
https://www.sammobile.com/samsung/galaxy-note-10-plus/firmware/SM-N975U1/TMB/

Here's the one he'll want if he had an unlocked one before.

My question is this -
I have already spent a lot of time setting up Nova Launcher, custom widgets and icons, etc - will flashing the T-Mobile Firmware cause me to lose all this stuff? Or will it just change how some of the innards work?

---------- Post added at 01:30 PM ---------- Previous post was at 01:28 PM ----------



How do you know you have VoLTE? I don't see anything about it anywhere in the phone settings, and my calls don't have that crisp digital sound that they had on my Pixel 2XL that also used to show "HD Voice" on the screen during calls (my unlocked Note 10+ does not show that and I also wouldn't describe my calls as being "HD"). I do have Wifi calling already, though.

Honestly not sure how to confirm it. I've been told if you make a call and can still use data on LTE, then you have VoLTE. My Note 8 ran the U1 firmware on T-Mo and I had VoLTE.

My Note 9 was running T-Mo firmware and you're right it did show "HD Calling" but honestly the quality of calls seems the same on my Note 10+ running the U1 firmware. At least according to my ear-o-meter it's the same.
 

cjxsutton

Senior Member
Nov 3, 2011
110
34
Panama City Beach, FL
Here ya go. Here is the T-Mobile SH4 CSC file. https://androidfilehost.com/?fid=6006931924117942494
You probably need the patched version of Odin. So here is Odin v3.13.13B_Patched: https://androidfilehost.com/?fid=6006931924117942500

I just flashed this to my device and noticed the T-Mobile magenta boot screen (could have done without that) and the arrival of the video calling dialer.

So I decided to go to Software Updates and check for updates and now it's saying my software version isn't supported and to visit a service center.

Any idea how to get it functioning as "supported" again aside from flashing the entire firmware? I'd like to keep the T-Mobile features as well as get OTA updates.

Just to clarify, the phone is functioning fine still - it's not bricked or anything. It's just now saying unsupported software when I go to software updates. I definitely want to still get updates.
 

chowdarygm

Senior Member
Sep 4, 2009
872
173
Chicago, IL
I just flashed this to my device and noticed the T-Mobile magenta boot screen (could have done without that) and the arrival of the video calling dialer.



So I decided to go to Software Updates and check for updates and now it's saying my software version isn't supported and to visit a service center.



Any idea how to get it functioning as "supported" again aside from flashing the entire firmware? I'd like to keep the T-Mobile features as well as get OTA updates.
Did you use 'Home_CSC' or 'CSC'?

Sent from my Auto Glow Note 10+ using Tapatalk
 

chowdarygm

Senior Member
Sep 4, 2009
872
173
Chicago, IL
I used the provided links that I quoted. There's only one file in there. I dropped it in the CSC section and flashed it.
I always used full firmware files to flash from unlocked to carrier instead of just the carrier specific file. Any flashing without reset usually causes some or the other issue

Sent from my Auto Glow Note 10+ using Tapatalk
 

gotojanoo

Senior Member
Aug 6, 2008
1,040
386
Los Angeles
So's I flashed tmobile firmware onto my unlocked snapdragon note 10 plus last night. I'm aware of a security update for September. I checked for updates by using wifi and carrier signal and I only get a message stating my software is up to date and it also shows that the security patch level is August 1st.
I was under the assumption that by flashing tmobile firmware onto unlocked phone you would be able to receive carrier OTA's.
Am I doing sumn wrong or was my assumption inaccurate?

i got update today on unlocked version flashed with t-mobile firmware.
 
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kvell36

Member
Apr 3, 2012
29
13
Ohio
Ok so I just got my Note 10+ and want to see which firmware to set up everything with. In this spirit I'm messing with S10's firmware and running speedtests on T-Mobile. Got 17-28mbps down on Unlocked Android 10 Beta 2 (pretty consistent 27mbps after running multiple tests), 20-26 mbps down on Unlocked Pie, and 15-29mbps down on T-Mobile Pie. I see no real benefit to flashing T-Mobile firmware in light of these results.
 
Nov 11, 2016
8
2
My sister has T-Mobile branded Note 9. I have pictures to show that there is no VOLTE toggle on T-MOBILE locked phone. Hope this info helps. :highfive:
 

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XanRules

Senior Member
Apr 16, 2011
53
7
Hi all,

Sorry, there seem to be a lot of conversations happening here at once and I just want to make sure I understand everything correctly before I do something wrong.

My Unlocked Note10+ is coming in tomorrow. I am a T-Mobile user.

It appears that the existing, unlocked firmware will work just fine for T-Mobile, and that the only options I won't have are RCS (non-issue since Google is rolling that out regardless of carrier anyway), T-Mobile video calling (non-issue since I don't care about it and if I did I'd use Duo), and a Magenta Boot Screen. In fact, some people are noticing faster data speeds and better call quality on unlocked vs T-Mobile firmware, and VoLTE and WiFi Calling are not problematic on the unlocked version. Is this correct?

If not, and there's something I'm missing, I download the T-Mobile SM-N975 U1 firmware from SamFirm, flash via Odin by putting phone into download mode, plugging in with ODIN running, flash according to on-screen instructions, (using CSC rather than Home_CSC), boot up, insert SIM, reboot when prompted, and then re-flash again using T-Mo USERDATA. Is that correct?

Thank you! Not trying to brick my **** out of the gate but also want my phone to work as well as possible!
 
Last edited:

louforgiveno

Senior Member
Jun 24, 2010
3,767
2,413
Hi all,

Sorry, there seem to be a lot of conversations happening here at once and I just want to make sure I understand everything correctly before I do something wrong.

My Unlocked Note10+ is coming in tomorrow. I am a T-Mobile user.

It appears that the existing, unlocked firmware will work just fine for T-Mobile, and that the only options I won't have are RCS (non-issue since Google is rolling that out regardless of carrier anyway), T-Mobile video calling (non-issue since I don't care about it and if I did I'd use Duo), and a Magenta Boot Screen. In fact, some people are noticing faster data speeds and better call quality on unlocked vs T-Mobile firmware. Is this correct?

If not, and there's something I'm missing, I download the T-Mobile SM-N975 U1 firmware from SamFirm, flash via Odin by putting phone into download mode, plugging in with ODIN running, flash according to on-screen instructions, (using CSC rather than Home_CSC), boot up, insert SIM, reboot when prompted, and then re-flash again using T-Mo USERDATA. Is that correct?

Thank you! Not trying to brick my **** out of the gate but also want my phone to work as well as possible!
Post #9 & post #28 are what you're looking for.

Sent from my [device_name] using XDA-Developers Legacy app
 

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  • 7
    Guys...
    Actually, all you need to do is to be on the U1 firmware and then use Odin to flash the TMB CSC file.
    When you do that you have the debloated benefits of the U1 firmware with all of the Carrier features.
    This will enable the T-Mobile splash screen, Video Calling, T-Mobile 4G LTE icon, and other behind the scene carrier settings.
    (but again still being on a N975U1 base firmware)

    If you flash the T-Mobile (N975U) firmware, then you have T-Mobile apps (bloat) baked into the firmware ROM.
    If you do what I just suggested you get the features enabled with ZERO bloats baked into the ROM.
    The difference in the signal that people are referring to is likely because of the CSC (Carrier Specific Code)

    Here ya go. Here is the T-Mobile SH4 CSC file. https://androidfilehost.com/?fid=6006931924117942494
    You probably need the patched version of Odin. So here is Odin v3.13.13B_Patched: https://androidfilehost.com/?fid=6006931924117942500
    4
    Easiest way is to install t-mobile firmware on unlocked version to enjoy all the benefits along with faster carrier updates https://www.sammobile.com/sams...ote-10-plus/firmware/SM-N975U/

    Sent from my SM-N975U using Tapatalk
    3
    There are still carrier/regions for unlocked versions.
    I am not 100% why but it does no harm to get a U1 firmware based on your carrier.
    Perhaps someone could explain to me why there is a VZW, TMB, and So on U1 firmware. Since I have T-Mobile I have always downloaded the TMB U1 firmware.
    XAA is just the generic, non-carrier U1. Which again is confusing even to me but my common sense tells me that if you are using a U1 firmware, might as well get the one that corresponds to your carrier. :)

    When your N975U1 is brand new, fresh out of the box, never been used. If you go through the setup without installing a SIM card. Then your CSC would be XAA/XAA/XAA. The first one indicates the current carrier, the second one is a sales code for carrier specific features, and the last one never changes. It's hardwire in to show the original version of the phone.

    Now, as soon as you insert a carrier SIM card, it detects it, provisions for that carrier, and forces a reboot, wherein it installs the features necessary for activation on that carriers network.

    In the instance of T-Mobile, it of course provisions for T-Mobiles supported bands, and adds WiFi calling and VoLTE (but no carrier bloat or apps). So then your CSC would become TMB/TMB/XAA. T-Mobile bands/T-Mobile specific features/unbranded device.

    If you then switched that SIM to an ATT SIM, it would again provision, reboot, install. And the CSC would change to ATT/ATT/XAA.

    All the XAA firmwares are identical. When you download the TMB version of U1 firmware, it just means that it pre-provisioned for TMB. No different than the regular U1 firmware and then sticking your T-Mobile SIM in it.
    3
    How did you do it tried myself many time. Still cant get the splash screen or any tmobile features

    1.Take out sim card
    2. Boot into download mode
    3. Flash U1 firmwire with all 4 files. BL, AP, CP, CSC
    4. Once it finishes it will boot up.
    5. Go back into download mode and Flash U firmwire with the TMB USR DATA. ( If you don't flash the usr data you won't get the TMobile features and the splash screen.

    Note: make sure to download the correct files
    2
    Excellent topic and thread....:good:

    I too have the Unlocked 512GB variant of the 10+ on the stock Unlocked U1 firmware. (ie... I did not flash the TM firmware)

    From my quick speedtests, I'm getting faster speeds vs my Note 9 and Note 8, both which are TM variants.

    This is just a theory, but for those that transferred their data over to the 10+, as oppose to doing a clean set up from scratch seems to be having issues?

    I always do a clean set up from scratch due to my OCD lol.... zero issues yet...

    I'll keep it on the Unlocked firmware as I'll be travelling soon so I'll compare it in different environments (areas) along side my TM 9 and 8 to know for sure...

    The App that I've been using for years that I'd recommend you guys check out is: Network Signal Info Pro (Get to Pro version if you can, it's cheap and the Dev is a really helpful guy.... definitely worth supporting him.)

    Also, with Speedtest.net app, as some of you may know it'll show if you're connected to: Multiple or Single connection .... when comparing tests, just make sure that it's consistent by making sure it is on the same server and same "single" connection for accuracy & comparison sake.

    Thanks guys for the feedback... having real world data to compare is good..... :highfive:

    Test from work officeView attachment 4809378View attachment 4809379

    Sent from my SM-N975U1 using Tapatalk

    Nice...I too am on the stock Unlocked firmware on TM and compared to my 8 and 9 my results are the same... the 10+ is faster by 30-40%.

    So you're definitively getting better speeds with the unlocked version?

    This is weird since I know someone who is complaining about slow speeds on their unlocked.

    The internals are completely the same as far as I know, right? MIMO 4x4, carrier aggregation etc... should all be fine with T-Mobile? Difference is the firmware.

    Correct, the devices themselves are all the same with the same hardware .... the differentiating factor of course being the software to unlock the appropriate features for each carrier etc...

    Wait, so unlocked phones get updates SLOWER than the carriers do?! I've always owned carrier phones until now (deal was way better for Unlocked compared to the T-Mobile variant), but I have always thought that the carrier models were updated last?

    That's not definitive yet or if at all, because some of us on the stock Unlocked U1 firmware are getting faster speeds...

    Also, newer isn't always better :) (update wise) ....

    Is the signal actually better with the T-Mo firmware?

    Not in my case along with some others....

    Guys...
    Actually, all you need to do is to be on the U1 firmware and then use Odin to flash the TMB CSC file.
    When you do that you have the debloated benefits of the U1 firmware with all of the Carrier features.
    This will enable the T-Mobile splash screen, Video Calling, T-Mobile 4G LTE icon, and other behind the scene carrier settings.
    (but again still being on a N975U1 base firmware)

    If you flash the T-Mobile (N975U) firmware, then you have T-Mobile apps (bloat) baked into the firmware ROM.
    If you do what I just suggested you get the features enabled with ZERO bloats baked into the ROM.
    The difference in the signal that people are referring to is likely because of the CSC (Carrier Specific Code)

    Here ya go. Here is the T-Mobile SH4 CSC file. https://androidfilehost.com/?fid=6006931924117942494
    You probably need the patched version of Odin. So here is Odin v3.13.13B_Patched: https://androidfilehost.com/?fid=6006931924117942500

    Don't forget to mention that doing that will break OTAs, so you'll need to manually flash updates through ODIN. Oh and, there's no real T-Mobile bloatware to speak of. A few apps you can uninstall and maybe two you can't. T-Mobile actually has pretty clean firmware on the Galaxy phones. O my thing I hate is the damn boot animation sound.

    Well said... you beat me to it brother lol... thanks for uploading the firmwares ....

    I'm going to stay put on the Unlocked Firmware for now and test more as I travel this coming week.... you know how we do lol.... Real world testing to know for sure and it's fortunate that we have multiple devices to do so....