I have read through many threads and I cannot find a direct answer. As it is stated in the title I have the Galaxy unlocked s9+that I bought from Samsung. I am currently on AT & T network because T-Mobile is terrible here in North Carolina where I am currently living. Can I flash ATT firmware on this unlocked version of the S9 plus and use Wi-Fi calling and volte? If there is a definite yes to this question then I will try to find the ATT firmware the flash on this phone.
uzupan said:
I have read through many threads and I cannot find a direct answer. As it is stated in the title I have the Galaxy unlocked s9+that I bought from Samsung. I am currently on AT & T network because T-Mobile is terrible here in North Carolina where I am currently living. Can I flash ATT firmware on this unlocked version of the S9 plus and use Wi-Fi calling and volte? If there is a definite yes to this question then I will try to find the ATT firmware the flash on this phone.
Click to expand...
Click to collapse
The answer is yes.
The firmware can be found pretty easy by looking in the forums or by looking on sammobile.com
Also, make sure you are flashing the same version of firmware. So if your device last digits are ARF4, then you want to flash the ARF4 AT&T firmware.
I have a question for this unlocked version from samsung.com. i I use it with Tmobile is the wifi calling, Volte, will work out of the box? or i have to do the same thing as flashing tmobile firmware? and also if I flash do i have to root? TIA. and also if there is already a thread for this question kindly post the link.
vaichrome said:
I have a question for this unlocked version from samsung.com. i I use it with Tmobile is the wifi calling, Volte, will work out of the box? or i have to do the same thing as flashing tmobile firmware? and also if I flash do i have to root? TIA. and also if there is already a thread for this question kindly post the link.
Click to expand...
Click to collapse
Yes if you use it on T mobile, the wifi, Volte will work out of the box. I was on T Mobile but because of coverage I had to switch to Att.
Scott said:
The answer is yes.
The firmware can be found pretty easy by looking in the forums or by looking on sammobile.com
Also, make sure you are flashing the same version of firmware. So if your device last digits are ARF4, then you want to flash the ARF4 AT&T firmware.
Click to expand...
Click to collapse
thanks for the info. I will give it a try!
uzupan said:
thanks for the info. I will give it a try!
Click to expand...
Click to collapse
FYI Sammobile requires premium account for fast download and with free account download speed is throttled to 15kbps. Try https://updato.com/firmware-archive-select-model for the firmwares with fast download.
Cashreedhar said:
FYI Sammobile requires premium account for fast download and with free account download speed is throttled to 15kbps. Try https://updato.com/firmware-archive-select-model for the firmwares with fast download.
Click to expand...
Click to collapse
Thanks
Well, I got the AT & T firmware put on my Galaxy 965 you one but since I am on ATT prepay Wi-Fi calling does not work and they do not offer volte on ATT prepaid, what a bummer
uzupan said:
Yes if you use it on T mobile, the wifi, Volte will work out of the box. I was on T Mobile but because of coverage I had to switch to Att.
Click to expand...
Click to collapse
thank you so much. that will help me decide what to get.
uzupan said:
Well, I got the AT & T firmware put on my Galaxy 965 you one but since I am on ATT prepay Wi-Fi calling does not work and they do not offer volte on ATT prepaid, what a bummer
Click to expand...
Click to collapse
Since this is an unlocked phone not purchased from ATT, WiFi calling and other features wont work even on a regular post pay account. I had to call ATT and give them my IMEI from my previous ATT branded s8+ before wifi calling and smart caller ID and other features would work. I told them it was an ATT phone that i purchased at Best Buy and i read about WiFi calling problem in a forum and that using a different IMEI worked for others. The tech said it's worth a try and she changed it and ive been good to go ever since. I fumbled around the question of "is this an unlocked phone?" i said no, it has ATT logo (it does at boot, but not on the back lol) and i purchased it for ATT. That was good enough for them.
Many others with unlocked U1 phones have done the same thing and ATT has changed IMEI on their side. It doesnt change your phones physical IMEI, just their end. I saw a post where one operator said they wouldnt or couldnt do that. If they tell you no, call back you'll likely get a different person and they might change it. Main thing is you have to have an IMEI from an ATT branded phone that supports the same features (s8,s7,s6, etc) Luckily for me i have a like new s8+. It's worth much more than what they offer for trade in so i kept it. Glad i did.
Yes, I saw those posts as well but currently I do not have an ATT branded phone. So, I went and put the unlocked firmware back on the phone and I will just keep it the way it is. If the new iPhone that is coming out has the T-Mobile band 71, I probably will jump back to the iPhone. This was my first Android in about 4 years. I am kind of disappointed that it won't work.
Related
Sorry for the noob question, just got the unlocked version of the S9+. I have build G965U1UES2ARF4. Read some stuff on other forums, thought I had it figured out, but got confused as I read more.
I would like to enable Volte/Wi-Fi Calling. I understand I have to flash AT&T firmware via Odin. I am not clear on what files and how to do it on Odin. Any help would be appreciated.
Also, if I flash to AT&T, do I lose whatever comes with my current ARF4 build? For example, I have FM radio enabled. Do I lose that because I am going over to the AT&T firmware where I think it is disabled? Is my phone no longer unlocked? Do I get bloatware?
Last question, when I flash, is it the same as a factory reset?
Any help appreciated. Thanks.
-FF
You will not able to use wifi or volte on an unlocked Galaxy s9, even if you install the att firmware, I tried. Some have reported if you have an att branded phone with sim give that IMEI number to att support and then transfer the sim to the Galaxy and it may work, I have not tried it. Wifi and Volte will work with t mobile with no problems, I have not tried Verizon.
I have an unlocked variant on Verizon. With their firmware, VOLTE and Wi-Fi calling will work, but not video calling.
Wifi calling will not work on unlocked version with Verizon VoLTE will work
thecarp1975 said:
I have an unlocked variant on Verizon. With their firmware, VOLTE and Wi-Fi calling will work, but not video calling.
Click to expand...
Click to collapse
There is a hack for that which I use: Place your line's SIM in a real Verizon device. Leave it in long enough that the VZW website sees the line as the new IMEI and device model (should only take a couple minutes). Go into Service Blocks and remove the block on Video Calling. Put the SIM back in the original device). Voila. You've got Video Calling.
The system doesn't care to check once the line is activated. But if it's activated with a U1 device, it turns that block on. If you use this hack and turn the block off, they never check.
CrazyApe18 said:
There is a hack for that which I use: Place your line's SIM in a real Verizon device. Leave it in long enough that the VZW website sees the line as the new IMEI and device model (should only take a couple minutes). Go into Service Blocks and remove the block on Video Calling. Put the SIM back in the original device). Voila. You've got Video Calling.
The system doesn't care to check once the line is activated. But if it's activated with a U1 device, it turns that block on. If you use this hack and turn the block off, they never check.
Click to expand...
Click to collapse
CrazyApe, I have AT&T as my carrier. Any clue if this hack will work on AT&T?
uzupan said:
You will not able to use wifi or volte on an unlocked Galaxy s9, even if you install the att firmware, I tried. Some have reported if you have an att branded phone with sim give that IMEI number to att support and then transfer the sim to the Galaxy and it may work, I have not tried it. Wifi and Volte will work with t mobile with no problems, I have not tried Verizon.
Click to expand...
Click to collapse
I went to the AT&T store the other day and they already had the IMEI from my Galaxy. So I wonder if I switch from an AT&T branded phone back to the Galaxy that the IMEI number of the Galaxy will just re-register.
FightinFlip said:
CrazyApe, I have AT&T as my carrier. Any clue if this hack will work on AT&T?
Click to expand...
Click to collapse
It will. But it's more manual. Verizon will pick up the new IMEI automatically. My understanding is that AT&T will require a call in to support while the SIM is in the real AT&T device. You ask them to associate your line with the new IMEI while it is still in the genuine device. Once that's done, you can move the SIM to the device you really want to use.
CrazyApe18 said:
It will. But it's more manual. Verizon will pick up the new IMEI automatically. My understanding is that AT&T will require a call in to support while the SIM is in the real AT&T device. You ask them to associate your line with the new IMEI while it is still in the genuine device. Once that's done, you can move the SIM to the device you really want to use.
Click to expand...
Click to collapse
Thanks. One concern is that Wifi calling is nowhere located on my unlocked Galaxy. I was hoping it would be disabled somewhere but it's nowhere to be found. Do you know once I pop my SIM back in if a WiFi calling option will just appear somewhere in the settings?
FightinFlip said:
Thanks. One concern is that Wifi calling is nowhere located on my unlocked Galaxy. I was hoping it would be disabled somewhere but it's nowhere to be found. Do you know once I pop my SIM back in if a WiFi calling option will just appear somewhere in the settings?
Click to expand...
Click to collapse
I wish I could help on that. With Verizon, the menu is there in the firmware at all times. As is video calling. Maybe AT&T hides it until the provisioning checks out. I don't know.
Volte not working
I have purchased s9 pluse from canada and now i am in india and volte services r not working can any tell me what do.
Wifi calling is enabled for Verizon (go to phone settings to enable). I am sure there
are other changes. Update G965U1UEU3ARH7.
fb
Hi, just posted the same update for GS9 Unlocked using AT&T. 495.78 MB.
Thanks for sharing... View attachment 4598513
Sent from my SM-G960U1 using Tapatalk
fbroce said:
Wifi calling is enabled for Verizon (go to phone settings to enable). I am sure there
are other changes. Update G965U1UEU3ARH7.
fb
Click to expand...
Click to collapse
Yes, and Secure Wi-Fi has now been added. I think it previously existed only on the European firmwares. Now we get it, too.
Any way to see if AT&T Wifi Calling will work as I do not see the option in Settings? I have US Unlocked GS9 on AT&T
If I flash this U1 for my ATT phone (running full Tmobile firmware now),
will I have Wifi calling with Tmobile? Or Wifi calling only works with Verizon with U1
sweetboy02125 said:
If I flash this U1 for my ATT phone (running full Tmobile firmware now),
will I have Wifi calling with Tmobile? Or Wifi calling only works with Verizon with U1
Click to expand...
Click to collapse
Despite what the websites like to post, there really isn't a VZW U1 and an ATT U1. There's just XAA U1. You'll get Wi-Fi Calling on every carrier with it now, except for ATT.
maddie01 said:
Any way to see if AT&T Wifi Calling will work as I do not see the option in Settings? I have US Unlocked GS9 on AT&T
Click to expand...
Click to collapse
Reading up on it (short summary) this is because AT&T uses a database of IMEI numbers to provision WiFi calling and VoLTE. Since our IMEI numbers from our phones are not in that database we won't be able to use WiFi calling or VoLTE.
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Sent from my SM-G960U1 using Tapatalk
maddie01 said:
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Sent from my SM-G960U1 using Tapatalk
Click to expand...
Click to collapse
It's odd for sure. Verizon has always had VoLTE on unlocked too. At least since the S7. Probably before that. ATT has never felt the need to change the policy.
maddie01 said:
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Sent from my SM-G960U1 using Tapatalk
Click to expand...
Click to collapse
Who can say if it's disadvantageous or not, for all we know it might be the technology differences between the networks. Also it does make sense... having specific IMEI numbers known to connect to carrier specific services like wifi calling and VoLTE ensures that everything works. It doesn't make it convenient for us and I will admit it would be nice to have the features.. but for calling via wifi there are options.
Personally I use pbx in a flash and bria softphone. With the right VoIP provider it's a good setup and doesn't break the bank at all. I haven't even spent more then 5 bucks maybe in a month. For me this is better then wifi calling and I don't have any problems.
As for adding our IMEI to that database I tried inquiring about it, but I do recall reading where some people may have had luck in doing this. I suspect it may require a bit of luck and/or perserveriance after my last discussion with AT&T customer service.
I explained the situation and what needed to be done while being placed on hold a few times. As the call continued I tried to be patient with the person I spoke too, but I admit it is not easy when he is saying that just because I see H data speed that it's actually VoLTE. When I mentioned the speed test and how it was H data speed (and that H data speeds are not VoLTE) he was saying that H data speeds were like blazing fast compared to LTE..
I had to politely finish the call before I either started to laugh or feel sorry for that rep.
scottusa2008 said:
I tried inquiring about it, but I do recall reading where some people may have had luck in doing this. I suspect it may require a bit of luck and/or perserveriance.
In my case I tried to be patient with the person I spoke too. After waiting on hold a few times the representative tried to say everything was normal.. and then proceeded but to say that just because I see H+ speed that it's actually VoLTE. When I mentioned the speed test and how it was H data speed (and that H data speeds are not VoLTE) he was saying that H data speeds were like blazing fast compared to LTE..
I had to politely finish the call before I either started to laugh or feel sorry for that rep.
Click to expand...
Click to collapse
Hahaa, i have had a similar situations in the store where i had to correct a worker that was completely explaining 3G/HSPA wrong. Incredible how incompetent they are unless you just want an iPhone...thanks
Sent from my iPad using Tapatalk
maddie01 said:
Makes sense but is ridiculous for AT&T to restrict it. Has anyone ever called to ask to have thier Unlocked IMEI added to this "list" so that these features will work? Seems like it is a disadvantage for AT&T if it works for TMo and now Verizon but not AT&T...?
Just curious...
Click to expand...
Click to collapse
The only thing I've seen some people do successfully to get VoLTE working on an unbranded unlocked device is to have AT&T provision a SIM card to an IMEI of a phone that is AT&T branded and capable of VoLTE. Then use that SIM card on the unbranded unlocked device.
guyd said:
The only thing I've seen some people do successfully to get VoLTE working on an unbranded unlocked device is to have AT&T provision a SIM card to an IMEI of a phone that is AT&T branded and capable of VoLTE. Then use that SIM card on the unbranded unlocked device.
Click to expand...
Click to collapse
Do you recall seeing if they said this work for prepaid and/or postpaid?
If it's that simple i'm gonna have to find a phone capable of VoLTE and see if this works
scottusa2008 said:
Do you recall seeing if they said this work for prepaid and/or postpaid?
If it's that simple i'm gonna have to find a phone capable of VoLTE and see if this works
Click to expand...
Click to collapse
Honestly don't recall, or if it was even mentioned.
So this new version includes wifi calling. You find this in the menu system somewhere? Does HD Voice also work and indicated like Verizon SM-G965U?
houston-tx said:
So this new version includes wifi calling. You find this in the menu system somewhere? Does HD Voice also work and indicated like Verizon SM-G965U?
Click to expand...
Click to collapse
Hd voice always worked on unlocked for Verizon. Wifi calling is found in the phone app's settings.
I flashed G965U1UES3ARI1 for XAA to SM-G965U1 and I can't find settings for Wifi calling. Are they visible or just built in and assumed to be there?
houston-tx said:
I flashed G965U1UES3ARI1 for XAA to SM-G965U1 and I can't find settings for Wifi calling. Are they visible or just built in and assumed to be there?
Click to expand...
Click to collapse
What carrier are you on? It's supported for SPR, TMB, and now VZW. Look in the settings of the actual phone app, not the device settings.
Verizon. Found it. Thought it was in Settings. Thank you!
houston-tx said:
Verizon. Found it. Thought it was in Settings. Thank you!
Click to expand...
Click to collapse
No problem. You're not the first person to look for it in the wrong place. U1 builds always place the setting there. So they stayed consistent doing it this way.
OK, so I was with T-Mobile forever, and I bought this phone from them at launch. I decided to switch over to MetroPCS by T-Mobile because it's cheaper, so I paid off my phone then unlocked it (Even though I didn't need too, the Metro SIM worked in it before I unlocked it).
It worked fine for two weeks, and I had WiFi calling and everything, and then the RJ5 (I believe?) update came out, and when my phone booted up it said new sim detected, and WiFi calling was gone. My APN settings were set to MetroPCS', so I set it back to the T-Mobile one since it's essentially the same network, but the WiFi calling option is *completely* gone; it's not there, trust me. I call MetroPCS support and they said they can't enable it for devices that weren't bought from them, and I tried to argue like sure you can, send it up to a higher level support team, but I could hardly understand her and gave up.
I went into a MetroPCS store and they had a spare T-Mobile SIM, popped it in, boom WiFi calling was back.
Come OneUI Pie update one, I opt in and update, and voila, WiFi calling is back!
I just downloaded the second update last night, and now it's gone again. This **** is driving me crazy, if anyone can help me figure out a way to fix this I will love you forever.
Wow, that was a gripping good yarn! I think there's a good chance that if you switch to the unlocked G965U1 firmware, it might work. I have an unlocked Verizon S9+ running on TMO, and once I flashed it to U1, wifi calling and volte worked automatically. I'm not positive how it will be with Metro but it is worth looking into. When you flash the collect unlocked firmware, when the phone boots up it will detect your sim and then reboot and configure all the settings for you.
P.S. I don't suppose there's Metro firmware out there?
I don't think there's Metro firmware, because my updates still come from T-Mobile. T-Mobile owns Metro. So what you're saying is flash the firmware via Odin and my phone would be like truly unlocked and I would get updates from Samsung rather than T-Mobile? I don't want to go through all this if it isn't a a certain fix, but sadly there's no way to tell that.
YrrchSebor said:
Wow, that was a gripping good yarn! I think there's a good chance that if you switch to the unlocked G965U1 firmware, it might work. I have an unlocked Verizon S9+ running on TMO, and once I flashed it to U1, wifi calling and volte worked automatically. I'm not positive how it will be with Metro but it is worth looking into. When you flash the collect unlocked firmware, when the phone boots up it will detect your sim and then reboot and configure all the settings for you.
P.S. I don't suppose there's Metro firmware out there?
Click to expand...
Click to collapse
I don't think there's Metro firmware, because my updates still come from T-Mobile. T-Mobile owns Metro. So what you're saying is flash the firmware via Odin and my phone would be like truly unlocked and I would get updates from Samsung rather than T-Mobile? I don't want to go through all this if it isn't a a certain fix, but sadly there's no way to tell that.
For some carriers, the Wifi calling requires the phone to have carrier firmware. Verizon is one. I bought my 9+ from Samsung unlocked, and it didn't have wifi calling on Verizon until I reflashed the phone (using Patched ODIN) to a Verizon firmware and Wifi calling works... as does the Verizon bloat, but most of that can be disabled with Package Disabler pro or similar app.
creedicd said:
For some carriers, the Wifi calling requires the phone to have carrier firmware. Verizon is one. I bought my 9+ from Samsung unlocked, and it didn't have wifi calling on Verizon until I reflashed the phone (using Patched ODIN) to a Verizon firmware and Wifi calling works... as does the Verizon bloat, but most of that can be disabled with Package Disabler pro or similar app.
Click to expand...
Click to collapse
I don't think MetroPCS has it's own firmware for the s9+. Plus, they're owned by T-Mobile now. The plan I'm on is called MetroPCS by T-Mobile lol. This is driving me nuts.
C-4Nati said:
I don't think MetroPCS has it's own firmware for the s9+. Plus, they're owned by T-Mobile now. The plan I'm on is called MetroPCS by T-Mobile lol. This is driving me nuts.
Click to expand...
Click to collapse
Out of curiosity I read around a little bit and it seems to be really hit and miss, which definitely seems to match up with your experience. I did find this post on Reddit from someone saying they got Wi-Fi calling to work with a Metro Sim: https://www.reddit.com/r/tmobile/co...g_volte_not_working_with_metropcs_sim/cymnvhf
Have you come across that, tried any of that?
YrrchSebor said:
Out of curiosity I read around a little bit and it seems to be really hit and miss, which definitely seems to match up with your experience. I did find this post on Reddit from someone saying they got Wi-Fi calling to work with a Metro Sim: https://www.reddit.com/r/tmobile/co...g_volte_not_working_with_metropcs_sim/cymnvhf
Have you come across that, tried any of that?
Click to expand...
Click to collapse
I have not, thanks for the link, I shall try that. Funnily enough, there was a hotfix pushed out last night and WiFi calling not working was on that list. I now have the WiFi calling icon in the notification bar, and it shows like it's on, but it doesn't actually work, and me pressing it does nothing. The setting itself still isn't in connections or anywhere in the settings. This is so dumb, lol.
The title pretty much sums it up.
I had an ATT phone when working in the US - it was unlocked by ATT when I moved to Canada for work.
I just flashed it to SM-965U1.
I am on Koodo, living in an area with sub-par signal and I'd really like to know if it is possible to get the Koodo firmware on so that I may enjoy the perks of WiFi Calling and VoLTE.
Thank you,
DarkRiot43
DarkRiot43 said:
The title pretty much sums it up.
I had an ATT phone when working in the US - it was unlocked by ATT when I moved to Canada for work.
I just flashed it to SM-965U1.
I am on Koodo, living in an area with sub-par signal and I'd really like to know if it is possible to get the Koodo firmware on so that I may enjoy the perks of WiFi Calling and VoLTE.
Thank you,
DarkRiot43
Click to expand...
Click to collapse
do you know anyone with a Koodo S9+? or can you call/visit one of the retail locations to get the firmware version from their S9+? sammobile.com/firmwares might have it, but its possible that itll be a toughie as niche cell providers like these dont exactly have a lot of availability for that. You could maybe contact their tech support to see if you can get access to the firmware
Since the Galaxy S6 Edge days I've been getting AT&T branded Samsung phones. This time around due to initial perks of a trade in were better for the unlocked version of S23U, I went ahead and pre-ordered the unlocked version. Are there any drawbacks anyone has experienced with the unlocked version that would warrant me to cancel the order? Are there any AT&T features such as visual voicemail, personal hotspot or HD voice that isn't compatible with the unlocked, non carrier version? Any help would be appreciated as i believe I can still cancel the order.
Thank you.
With an unlocked phone, you cant call. But if you add a sim card into it you can do anything such as mobile data, call, hotspot, etc. An unlocked phone can work on any carrier. But it is still the same thing as an at&t version unless you add the sim card in it.
So I assumed if i insert my AT&T simcard it'll work just like an AT&T phone?
AeroSatan said:
So I assumed if i insert my AT&T simcard it'll work just like an AT&T phone?
Click to expand...
Click to collapse
That's what I have done for every phone I have had since the S7 Edge on T-Mobile. Still using the same simcard since I started out with the (S7 Edge), then Note 8, S20U, S22U and now S23U and has worked fine with T-Mobile but without the carrier bloat. The only downside is Unlocked versions always get the updates last.
You can always flash U (carrier firmware) that is bit different from from U1 (factory unlocked) firmware. This way you'll get exactly the same experience as for the phone of any carrier directly. You can always switch back and forth with data wipe.
AeroSatan said:
So I assumed if i insert my AT&T simcard it'll work just like an AT&T phone?
Click to expand...
Click to collapse
yes. and sorry for the late reply.
irshansk said:
You can always flash U (carrier firmware) that is bit different from from U1 (factory unlocked) firmware. This way you'll get exactly the same experience as for the phone of any carrier directly. You can always switch back and forth with data wipe.
Click to expand...
Click to collapse
First time Sammy user here, so possibly a stupid question but... from my search it appears that other than carrier bloatware you don't loose anything by going to U1 firmware and possibly gain faster updates. Is that a correct? Seems to be the case for WiFi calling but what about ATT wifi hotspots for example?
Unlocked phones were useful for sticking local SIMs in them for international travel but with the new international plans pricing is actually reasonable so it is not worth the hassle.
AeroSatan said:
Since the Galaxy S6 Edge days I've been getting AT&T branded Samsung phones. This time around due to initial perks of a trade in were better for the unlocked version of S23U, I went ahead and pre-ordered the unlocked version. Are there any drawbacks anyone has experienced with the unlocked version that would warrant me to cancel the order? Are there any AT&T features such as visual voicemail, personal hotspot or HD voice that isn't compatible with the unlocked, non carrier version? Any help would be appreciated as i believe I can still cancel the order.
Thank you.
Click to expand...
Click to collapse
I was in the same situation as you, and ordered the Unlocked version this time instead of the AT&T version. I am happy to report that everything is working. Visual Voicemail (Samsungs App), Personal Hotspot (aka Mobile Hotspot), HD Voice (VoLTE), and WiFi Calling.