S10+ unlocked version Snapdragon to Tmobile US version. - Samsung Galaxy S10+ Guides, News, & Discussion

Is it possible to make this coversion?

fmedrano1977 said:
Is it possible to make this coversion?
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Sure, but you will have to reset your phone to load up the software with your Tmobile sim in it.

Is it possible? Yes. Do you need to? No.
Tmobile (unlike other carriers) doesn't differentiate features between U (carrier) and U1. So things like VOLTE, WiFi Calling, etc all work on U1. On ATT you lose wifi calling, "enhanced messaging" etc.
So unless there's some specific reason you wanted to run U versus U1, I'd stay with what you have. U1 has been updating faster for Jan and Feb patches as well.

Enhanced messages is not working for me. Video calling on the stock dialer is not available. This is with T-Mobile US.

Related

RCS messaging for U1 on T-Mobile?

I am running unlocked firmware on the T-Mobile network, which I prefer over T-Mobile firmware for many reasons. The only feature I feel as though I'm missing from the T-Mobile firmware is RCS messaging. Does anyone have insight on how that could be activated on the unlocked firmware?
Thanks in advance!
You need to be on the T-Mobile CSC, basically no way to do it without being on T-Mobile firmware.
Flash the newest TMO CSC and CP it should be under cloud and accounts in settings 'multi line settings'
Sent from my SM-G955U1
If you do that, won't it return the T-Mobile boot and disable smart call, effectively restoring T-Mobile firmware? I believe that's the case, and if so, not worth it IMHO.
Thank you, though
dave812 said:
If you do that, won't it return the T-Mobile boot and disable smart call, effectively restoring T-Mobile firmware? I believe that's the case, and if so, not worth it IMHO.
Thank you, though
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Just flash the G955U1UEU1AQG2 Firmware and keep the Tmobile modem. You then have an unbranded phone with RCS and smart call. I got to keep my video calling, though from what I read, your mileage may vary on video calling.
the thread I followed Here
Unless I'm reading you wrong and you're not using a Tmo S8+.
What do you gain by flashing back Tmobile cp/CSC?
Sent from my SM-G955U1 using Tapatalk
dave812 said:
I am running unlocked firmware on the T-Mobile network, which I prefer over T-Mobile firmware for many reasons. The only feature I feel as though I'm missing from the T-Mobile firmware is RCS messaging. Does anyone have insight on how that could be activated on the unlocked firmware?
Thanks in advance!
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I did exactly what others are suggesting a few weeks ago...flashed the U1 XAA firmware and just the TMB CP file. While most everything worked, RCS did not, and in fact I couldn't send/receive MMSs from my girlfriend who also has a TMB U model. I had to flash the TMB CSC to get it all working again, which yes means you are then stuck with the T-Mobile splash screen and you no longer have the native scam blocking, and at the same time the T-Mobile Name ID app for scam blocking doesn't work, That being said, you can still use dialer codes to get T-Mobile's scam blocking to work. It's not the native Samsung s**t, but it works.
To enable Scam ID or Scam Block and check their statuses:
#ONI# (#664#) – Enable Scam ID
#ONB# (#662#) – Enable Scam Block
#OFB# (#632#) – Disable Scam Block
#STS# (#787#) – Check Scam Block enabled status
Thanks for that! Yes I tried the above too. No RCS unless on T-Mobile firmware (flashing CSC counts as the same!). Unlocked/unbranded firmware isn't worth giving up for RCS and video calling imo!
The rcs messaging was working for me with Samsung messages app, but I recently got a android wear watch and it wanted me to use android messages (Google's messaging app NOT Samsung's) and rcs doesn't work? I guess that's just part of it?
I can not long see the other person has read the message, or when they are typing while I'm using Google Android message app.
Sent from my SM-G955U1 using Tapatalk

AT&T Branded Galaxy S9 SM-G960U - Can not enable WiFi Calling using T-Mobile Sim

Hello everyone,
Yes, I'm a noob here but online research, etc. tells me that XDA is the place for me. I am a IT tech, just not a programmer nor have I done a lot with flashing phones, etc.
based on some basic searching my issues seems to be common.
I am a T-Mobile user and I now have a new AT&T Branded Galaxy S9 SM-G960U. I paid a third party to provide me with a Samsung unlock code. I unlocked the phone last night, had T-Mobile update my account with my new Nano Sim, etc.
All is working except I can not enable WiFi Calling and of course there are some advanced text messaging features that I can not enable, i.e. sent receipts, etc. I tested the phone with a active AT&T sim and the features work fine.
Does anyone have a work around for getting WiFi calling and text features to work using the T-Mobile Sim?
Do I need to some how flash a T-Mobile ROM to the phone?
Any help and guidance would be greatly appreciated
it will never work because is att brand. you needed to get international model.
I'm not so sure.......... I have the SM-960u1 and have flashed various AT&T FW to it at least 50 times and cannot get any IMS features to work. I get get the ATT bloatware, software,splash screen. But no VoLTE, WiFi Calling etc. I am tired of flashing. Back to Stock U1 for me.
AT&T is the same. They keep promising wifi calling for unlocked phones but I can't get it and neither can 2 others I know with unlocked phones.
This sounds normal. I have an AT&T branded Galaxy S6, which has wifi calling, but I'm using a MintMobile (T-Mobile) SIM. Wifi Calling is grayed out. There's probably some sort of check in the software that only enables the wifi calling if you are using an AT&T sim.
Yes, you have to flash the T-Mobile firmware with the latest modded Odin, or the unlocked U1 variant firmware (for which TMO's RCS messaging and video calling won't work-with U1 firmware, I mean). If you flash the TMO firmware, it's for all intents and purposes turning the phone into aTMO phone, with bootscreen, bloat and all.
jrockz5000 said:
Hello everyone,
Yes, I'm a noob here but online research, etc. tells me that XDA is the place for me. I am a IT tech, just not a programmer nor have I done a lot with flashing phones, etc.
based on some basic searching my issues seems to be common.
I am a T-Mobile user and I now have a new AT&T Branded Galaxy S9 SM-G960U. I paid a third party to provide me with a Samsung unlock code. I unlocked the phone last night, had T-Mobile update my account with my new Nano Sim, etc.
All is working except I can not enable WiFi Calling and of course there are some advanced text messaging features that I can not enable, i.e. sent receipts, etc. I tested the phone with a active AT&T sim and the features work fine.
Does anyone have a work around for getting WiFi calling and text features to work using the T-Mobile Sim?
Do I need to some how flash a T-Mobile ROM to the phone?
Any help and guidance would be greatly appreciated
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Click to collapse
i think your own question just answered you:
tmobile sim on a branded phone (att)
jrockz5000 said:
Hello everyone,
Yes, I'm a noob here but online research, etc. tells me that XDA is the place for me. I am a IT tech, just not a programmer nor have I done a lot with flashing phones, etc.
based on some basic searching my issues seems to be common.
I am a T-Mobile user and I now have a new AT&T Branded Galaxy S9 SM-G960U. I paid a third party to provide me with a Samsung unlock code. I unlocked the phone last night, had T-Mobile update my account with my new Nano Sim, etc.
All is working except I can not enable WiFi Calling and of course there are some advanced text messaging features that I can not enable, i.e. sent receipts, etc. I tested the phone with a active AT&T sim and the features work fine.
Does anyone have a work around for getting WiFi calling and text features to work using the T-Mobile Sim?
Do I need to some how flash a T-Mobile ROM to the phone?
Any help and guidance would be greatly appreciated
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Click to collapse
You will need to flash to the U1 Firmware then Flash the T-Mobile firmware. AT&T's Wifi Calling is proprietary and thus their phones software won't work with other Carrier's Wifi Calling.

Not getting VoLTE on T-mobile on XT1710-06 version

Is or has anyone else been able to get VoLTE working on T-Mobile US on this model specifically? LTE and WiFi Calling work in general, but the "Enhanced 4G LTE Mode" toggle isn't there to allow VoLTE. The model has the same number of bands as the XT1710-01 model, but is on the RETLA channel, by the way.
Hi, actually I was having similar issues. VoLTE, seems to be different but is based on your Carrier mostly. If you call someone from a different carrier it may not be enabled. I'm with AT&T, whenever I call someone with AT&T and we are both with good 4g LTE, in the call, changes the status to HD. But, just with AT&T. At least that's how it Works for me. We should wait someone to confirm is this is how other carries behave.
Vesaniaheim said:
Hi, actually I was having similar issues. VoLTE, seems to be different but is based on your Carrier mostly. If you call someone from a different carrier it may not be enabled. I'm with AT&T, whenever I call someone with AT&T and we are both with good 4g LTE, in the call, changes the status to HD. But, just with AT&T. At least that's how it Works for me. We should wait someone to confirm is this is how other carries behave.
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Apologies for the late reply. Definitely no VoLTE or HD voice between me and other T-Mobile users. No matter what I tried it just never came up. If anyone's considering using this specific variant of the phone in the US, I'd be aware of the limits beforehand.
politiclaw said:
Apologies for the late reply. Definitely no VoLTE or HD voice between me and other T-Mobile users. No matter what I tried it just never came up. If anyone's considering using this specific variant of the phone in the US, I'd be aware of the limits beforehand.
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-06 is a North American dual sim variant, correct?
Are both SIM cards on t-mobile?
Could one use SIMS from different carriers?
pizza_pablo said:
-06 is a North American dual sim variant, correct?
Are both SIM cards on t-mobile?
Could one use SIMS from different carriers?
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-06 is a North American dual sim variant, correct. Updates should go through ATT Mex, I believe. And yes, you can use sims from other carriers. I used one sim card when I tried it and only utilized one of the sim slots as a result. T-Mo VoLTE just doesn't seem to have been certified for that variant.
So T-Mobile WIFI calling works on this variant of the Z2 Play? If so that is good to know especially when traveling overseas even if some other advanced features don't work.
I have an XT1710-06 retla device and I can confirm that wifi calling with T-mobile does *NOT* work on my device. There is a setting to enable wifi calling, but it never seems to connect and all calls still go over mobile. This is 100% testable if I for instance go into a deep basement that has wifi but no cellular signal -- I can browse the internet but cannot make phone calls or SMS, even though I have wifi calling turned on.
This is probably related to why VoLTE doesn't work either.
Also (as mentioned in another thread) still no updates for it past February 7.1.1 update. No later security updates and no Oreo updates.
Vesaniaheim said:
Hi, actually I was having similar issues. VoLTE, seems to be different but is based on your Carrier mostly. If you call someone from a different carrier it may not be enabled. I'm with AT&T, whenever I call someone with AT&T and we are both with good 4g LTE, in the call, changes the status to HD. But, just with AT&T. At least that's how it Works for me. We should wait someone to confirm is this is how other carries behave.
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Hi,
I'm super curious how did you get your Z2 Play to have VoLTE. I 've tried everything - new sim, IMEI of ATT branded phone, activated SIM on ATT phone, etc. , to no avail. I'm so frustrated and about to get another phone, because my HSPA signal is much weaker than LTE where I'm at and constantly have missed (straight to voicemail) or dropped calls. Please, let me know how did you get it to work.
Thanks
Maybe the problem is VolTE itself. As I tested. Unless both phones are with the same carrier and working good over 4G (good signal area) you can't get it working. At least in where I live that was true for a friend's phone and mine. So VolTE was good, until signal dropped hard. But impossible to work with other carriers.
Even it was good under Lineage OS and tested with Toxyc OS, but I saw the main thing is that 4G LTE should be firstly working fine. And same for anyone you call. Otherwise call will be normal. And for 4G LTE it depends on area support too.
Sorry for late reply
G1Hope said:
I have an XT1710-06 retla device and I can confirm that wifi calling with T-mobile does *NOT* work on my device. There is a setting to enable wifi calling, but it never seems to connect and all calls still go over mobile. This is 100% testable if I for instance go into a deep basement that has wifi but no cellular signal -- I can browse the internet but cannot make phone calls or SMS, even though I have wifi calling turned on.
This is probably related to why VoLTE doesn't work either.
Also (as mentioned in another thread) still no updates for it past February 7.1.1 update. No later security updates and no Oreo updates.
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Same phone (XT1710-06 retla, rooted stock ROM on Oreo), and wifi calling on Tmobile also doesn't work for me. I can enable it in Settings, but I cannot send SMS or make calls over wifi with no cell service. After a while (a few hours) I get a Moto Settings notification that it can't enable Wifi calling, with a message underneath that says "Enabling." I can't dismiss the notification, only snooze it for up to 2 hours, and after I disable wifi calling it does eventually go away after a couple days.
Your problem is because none of the XT1710 variations have the 600MHz Band 71. It is the most recently added band and very few phones currently out there support it yet. As far as the HD voice issues mentioned...both people on the call have to be using a Volte supported phone and then HD automatically activates.

Will flashing my unlocked T-Mobile S9 to ATT firmware allow me to use VoLTE?

And WIFI calling?
I had read in a few places this might work. I'm also not able to sync my Galaxy watch to send texts and make calls through my phone's phone number with numbersync. I'm hoping flashing the actual ATT software might fix these problems.
Any thoughts?
iphoneislame said:
And WIFI calling?
I had read in a few places this might work. I'm also not able to sync my Galaxy watch to send texts and make calls through my phone's phone number with numbersync. I'm hoping flashing the actual ATT software might fix these problems.
Any thoughts?
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well, the worst thing that could happen is that it doesnt work and youd need to flash your other firmware back on the device
I flashed my unlocked cricket S9 to Verizon firmware, because I was on the U1 firmware and needed cricket wifi calling back (and cricket/att firmware downloads are mia) and when I did I got absolutely nothing of Verizon and the phone was recognized as a cricket phone. So in short basically all 0U firmware is the same the same as all 0U1 is the same. It's kind of confusing but basically on 0U your sim/carrier (even if you don't have it in at setup, it remembers the last one you used) determines your 0U for you, so I don't think what you're asking will work.
iphoneislame said:
And WIFI calling?
I had read in a few places this might work. I'm also not able to sync my Galaxy watch to send texts and make calls through my phone's phone number with numbersync. I'm hoping flashing the actual ATT software might fix these problems.
Any thoughts?
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I have heard from some people that latest(august or so) update on unlocked S10+ that is on ATT network, allows VoLTE to work

Samsung S9 Wifi Calling ROM Question

I have a new Sprint unlocked Samsung S9 SM-G960U1 and am trying to get the wifi-calling to work with Cricket Wireless. Currently the wifi calling option doesn't even show up. I was wondering if flashing an after market ROM would enable me to access the wifi-calling feature. Cricket supports wifi-calling, but only on Android devices purchased from Cricket (a note I didn't see before I bought the phone). If there is please letr me know which ROM would help me achieve this.
Thanks
Stormer99 said:
I have a new Sprint unlocked Samsung S9 SM-G960U1 and am trying to get the wifi-calling to work with Cricket Wireless. Currently the wifi calling option doesn't even show up. I was wondering if flashing an after market ROM would enable me to access the wifi-calling feature. Cricket supports wifi-calling, but only on Android devices purchased from Cricket (a note I didn't see before I bought the phone). If there is please letr me know which ROM would help me achieve this.
Thanks
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Wifi calling and volte do not work on byod there is no roms for this phone. You can root but I can assure you this isnt gonna work either. All you can do is buy a cricket wifi calling enabled device
TheMadScientist said:
Wifi calling and volte do not work on byod there is no roms for this phone. You can root but I can assure you this isnt gonna work either. All you can do is buy a cricket wifi calling enabled device
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incorrect. it merely needs to be provisioned by cricket on the back end by someone who isnt the typical moron with a headset. the reason byod devices have trouble is due to the IMEI not being listed in their system and it takes a ticket to be sent to the telephony dept and have it added. They dont like doing it, but they will when pushed. Unlocked A8 and A6 on cricket both had wifi calling and VoLTE after provisioning was complete.
you also have to have the right csc on the phone.
Youdoofus said:
incorrect. it merely needs to be provisioned by cricket on the back end by someone who isnt the typical moron with a headset. the reason byod devices have trouble is due to the IMEI not being listed in their system and it takes a ticket to be sent to the telephony dept and have it added. They dont like doing it, but they will when pushed. Unlocked A8 and A6 on cricket both had wifi calling and VoLTE after provisioning was complete.
you also have to have the right csc on the phone.
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I have a method with imei from a good cricket wifi calling phone. And have it working. But I have to give them another imei once I have it provisioned. Once their system updates with my imei I lose my wifi calling. But after provisioning I give them my actual cricket devices imei and tell them the system is still showing my byod imei they need to change it back to the other device. It works. But imei in their system is wrong.
Not imei switching or anything like that. I physically own a stylo 5 from cricket I dont use. So they think I'm on that and not my g9650. So I know it's possible just a real pain

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