G935T unlocked-running at&t firmware on att network. Can't get wi-fi calling working! - AT&T Samsung Galaxy S7 Edge Questions & Answers

G935T unlocked-running at&t firmware on att network. Can't get wi-fi calling working!
I posted this over the Tmobile section, but realized it might be a better topic here in the AT&T section...
Sure would like some help from the brilliant minds on this board....
I bought an unlocked G935T a few months ago and have been using it on At&t (with the G935T firmware) for the last few months.
Recently, I needed to use wi-fi calling. Couldn't get it to work on TMo firmware so last night I flashed G935A firmware one it (QF3)
Firmware is working fine - everything seems to be working EXCEPT wi-fi calling. Damn you, AT&T!
I can use one of the free VOIP apps like Google Voice, of course, but when I call out I need to be able to use my cell phone number and really don't want to have to forward calls to GV every time I go into this particular building that doesn't have any cell reception.
Chatting with support this morning, they said it can't be done. I don't understand - if the hardware is the same across all US Variants, then why can't At&t firmware enable this feature? What am I missing??? GRRRRR

You have to run the AT&T firmware to get that feature.

jshamlet said:
You have to run the AT&T firmware to get that feature.
Click to expand...
Click to collapse
I AM running the AT&T firmware.

danoelise said:
I AM running the AT&T firmware.
Click to expand...
Click to collapse
Sorry, I missed that. The next step is to call an actual AT&T rep (at a corporate store) and make sure your SIM is provisioned correctly.

jshamlet said:
Sorry, I missed that. The next step is to call an actual AT&T rep (at a corporate store) and make sure your SIM is provisioned correctly.
Click to expand...
Click to collapse
No worries. I actually went into a store yesterday. He pulled up a few threads on his tablet and basically told me it cannot be done. I have used the "please make sure my sim is provisioned correctly" in my conversations with support online and they always say that you can't provision a sim.
Should I just go in and ask for another sim?

danoelise said:
No worries. I actually went into a store yesterday. He pulled up a few threads on his tablet and basically told me it cannot be done. I have used the "please make sure my sim is provisioned correctly" in my conversations with support online and they always say that you can't provision a sim.
Should I just go in and ask for another sim?
Click to expand...
Click to collapse
It's definitely a SIM or account thing. With the A firmware, it is identical to the phones AT&T sells, so this is a bit of AT&T dickery. Keep escalating it with support until you either get it resolved, or give up all hope.

I forgot to mention that they told me it has to do with IMEI. If it's not an AT&T phone, the IMEI isn't in their database, and won't work. I agree- total dickery.

Yeah, unfortunately it's ultimately a carrier feature, and AT&T has chosen to be jerks about it. I can't imagine they really make that much selling handsets, but this isn't the first time they have pulled this sort of stunt. It's almost as if they are jealous of people calling Verizon the evil empire and decided to strike back.

danoelise said:
I forgot to mention that they told me it has to do with IMEI. If it's not an AT&T phone, the IMEI isn't in their database, and won't work. I agree- total dickery.
Click to expand...
Click to collapse
You have to call ATT and give them the IMEI from any ATT device and that will unlock the wifi calling. Has to be an official ATT device.
Sent from my SM-G955U1 using XDA-Developers Legacy app

Related

T-Mobile Nexus 6 works on all carriers CONFIRMED

Hey guys,
I just purchased a nexus 6 from t-mobile and popped in a sim from att, sprint, and Verizon. I can confirm all 3 worked flawlessly with no problems.
At the device start up, i did skip the part where it tried to activate on the network the sim was from.
If anyone has any questions feel free to ask.
noXn said:
...
If anyone has any questions feel free to ask.
Click to expand...
Click to collapse
Are you seeing the issue of voice + data not working at the same time? When I'm on a call on Verizon, Wi-Fi works, but mobile data shuts off... is this just Verizon, or is this a "feature"?
sephtin said:
Are you seeing the issue of voice + data not working at the same time? When I'm on a call on Verizon, Wi-Fi works, but mobile data shuts off... is this just Verizon, or is this a "feature"?
Click to expand...
Click to collapse
That is not activated on Verizon...
But what I do want to know is if Verizon will whitelist the imei numbers . because I am soooo ready to pull the trigger to buy at a tmobile store. Did you have to activate the tmobile first? That's what the rep is telling me here
sephtin said:
Are you seeing the issue of voice + data not working at the same time? When I'm on a call on Verizon, Wi-Fi works, but mobile data shuts off... is this just Verizon, or is this a "feature"?
Click to expand...
Click to collapse
Unless something has changed with CDMA technology, the Verizon phones shouldn't be able to use data while on an active call. I know they are working to get that working with some new LTE standard but I haven't heard anything about it being here yet.
dadsterflip said:
That is not activated on Verizon...
But what I do want to know is if Verizon will whitelist the imei numbers . because I am soooo ready to pull the trigger to buy at a tmobile store. Did you have to activate the tmobile first? That's what the rep is telling me here
Click to expand...
Click to collapse
I'm considering switching to TMo anyway, so I picked up 30 days of pre-paid with the phone for 45$. I plan to try both carriers on my commute, see how signal is on both carriers on the train ride, downtown at work, etc. before making up my mind, and this device makes it as easy as swapping the SIM out!
The issue I had, was I didn't have a nano-SIM. Verizon rep at the store told me there was nothing they could do... I told them if he got me a nano-SIM, that customer support could active it... He gave me a SIM and let me use their phone to call Support to activate it. The support person did a "SIM swap" for my existing device, even though my Note3 obviously doesn't use a nano-SIM.. but that's all it took to activate the nano-SIM, and it works perfectly.
I may be misunderstanding your question... I believe the confusion is that you don't actually activate the phone... you activate the SIM IN the device. You should be able to take the phone out of the box, and drop in an already activated SIM and all will work fine...
seh6183 said:
Unless something has changed with CDMA technology, the Verizon phones shouldn't be able to use data while on an active call. I know they are working to get that working with some new LTE standard but I haven't heard anything about it being here yet.
Click to expand...
Click to collapse
Thank you for confirming, that's exactly what I needed to know! I'm sure I can live without needing mobile data while on a call...
sephtin said:
I'm considering switching to TMo anyway, so I picked up 30 days of pre-paid with the phone for 45$. I plan to try both carriers on my commute, see how signal is on both carriers on the train ride, downtown at work, etc. before making up my mind, and this device makes it as easy as swapping the SIM out!
The issue I had, was I didn't have a nano-SIM. Verizon rep at the store told me there was nothing they could do... I told them if he got me a nano-SIM, that customer support could active it... He gave me a SIM and let me use their phone to call Support to activate it. The support person did a "SIM swap" for my existing device, even though my Note3 obviously doesn't use a nano-SIM.. but that's all it took to activate the nano-SIM, and it works perfectly.
I may be misunderstanding your question... I believe the confusion is that you don't actually activate the phone... you activate the SIM IN the device. You should be able to take the phone out of the box, and drop in an already activated SIM and all will work fine...
Thank you for confirming, that's exactly what I needed to know! I'm sure I can live without needing mobile data while on a call...
Click to expand...
Click to collapse
I know it works. My question is. Would Verizon block the imei or device I.d.s later down the road to where it doesn't work and only the imei that's been sold on Google play works.
dadsterflip said:
I know it works. My question is. Would Verizon block the imei or device I.d.s later down the road to where it doesn't work and only the imei that's been sold on Google play works.
Click to expand...
Click to collapse
Good luck getting your answer. If the device suddenly stops working on Big Red, I'll post here (as soon as I've completed my switch to another carrier).
sephtin said:
Good luck getting your answer. If the device suddenly stops working on Big Red, I'll post here (as soon as I've completed my switch to another carrier).
Click to expand...
Click to collapse
Lol. Yea that's what I was worried about. I didn't want to buy it then down the road oh yea this I.d. doesn't work anymore.
I did not register my device on T-Mobile at all. Just popped the other sims in.
What I'm told is that carriers only care about imei when activating for the first time. If you just put your own sim in there they just can't see the device type which really doesn't matter unless you're looking to call them for support.
T mobile store gave me **** about buying the phone out right. I had to get a friend to add me as an authorized user on his account to buy the phone OUTRIGHT. So stupid...
Also, at T-Mobile the phone out right was 649 where everyone else is like 50 or 40 bucks more which was also sweet.
I also did not get bloat Ware on the phone from the carriers.
The devices CDMA identifier (MEID??) needs to be in the carriers whitelist so if the OP didn't place a voice call over either the Sprint or Verizon networks itnis not "safe" to to say it works on all carriers.
This is supposed to be one model for all of the US with 4 SKUs for the variations, and it should work but there is still the question of whether the CDMA carrier. Allows the phone on their network.
Sent from my SCH-I605 using Tapatalk
I can confirm I've activated my nexus bought directly from moto on both sprint and T-Mobile. Both voice and data worked with each carrier. Sprint takes a little more when than just putting the Sim in. They need to activate the MEID in their system. You can't just put an active Sim from another phone in and have it work.
Interesting..
Other users have reported the exact opposite.
msal said:
Interesting..
Other users have reported the exact opposite.
Click to expand...
Click to collapse
If you referring to activating one on sprint, I was one of those users. Since Monday haven't been able to activate it until this morning.
seezar said:
If you referring to activating one on sprint, I was one of those users. Since Monday haven't been able to activate it until this morning.
Click to expand...
Click to collapse
Yep, talking about Sprint. IIRC, there were multiple threads on here saying you can only activate on CDMA carriers if you buy from them or Google Play.
msal said:
Yep, talking about Sprint. IIRC, there were multiple threads on here saying you can only activate on CDMA carriers if you buy from them or Google Play.
Click to expand...
Click to collapse
What about activating on Verizon?
Sent from my Nexus 7 using XDA Free mobile app
Buying from T-Mo living in a non-T-Mo area
Yes. I must be one of the only people on here in the U.S. not living in a T-Mo area.
I just ordered from T-Mo (64GB MB). After much conversation and clarification, I've learned that one can buy a Nexus 6 from them outright, which requires also buying a $10 SIM activation kit. Since I do not live in a T-Mo area, I will have to call and cancel my 'yet-to-be-activated' plan, which also required a $50 deposit. By utilizing T-Mo's "buyer's remorse", I will be able to keep the phone, since I bought it outright, but will be refunded my $50 deposit for the service, without ever having to activate it on T-Mo's network. From there, I will pop in my AT&T SIM card, and be on my way! The only thing I'll be out is the $10 SIM activation kit.
Also, the rep's did acknowledge that the Nexus 6 is one of the few phones they have that are already unlocked.
Please do critique this if you foresee any problems I'll have popping in my AT&T SIM and using my existing service with them.
EDIT: Yargh. T-Mo had zero 64GB phones, and have since called me back to tell me they are on back order. But hey... at least I have an order in now. Beats what I've accomplished so far on the Play store all to hell.
gregg0829 said:
What about activating on Verizon?
Sent from my Nexus 7 using XDA Free mobile app
Click to expand...
Click to collapse
As far as I'm aware, Verizon comes under the same category. You should only be able to activate on Verizon if you buy the phone from Google Play or from Verizon.
msal said:
As far as I'm aware, Verizon comes under the same category. You should only be able to activate on Verizon if you buy the phone from Google Play or from Verizon.
Click to expand...
Click to collapse
That is what I have read. I am hoping by the 12/2 when I get my phone from Motorola I will have more options regarding Verizon.
Sent from my Nexus 7 using XDA Free mobile app
gregg0829 said:
What about activating on Verizon?
Sent from my Nexus 7 using XDA Free mobile app
Click to expand...
Click to collapse
I bought my device from T-Mobile, removed the T-Mobile sim it came with, put my Verizon sim card in, and it worked no problem. This happened with my phone on ATT as well. The guy next to me did the SAME EXACT THING on Sprint.
I am not BSing you guys in the least. I have no problem helping out in anyway I can. I'll even give you the number and the guy at the T Mobile store who watched us do it lol.
seh6183 said:
Unless something has changed with CDMA technology, the Verizon phones shouldn't be able to use data while on an active call. I know they are working to get that working with some new LTE standard but I haven't heard anything about it being here yet.
Click to expand...
Click to collapse
This is incorrect, it has been working for 3 years now. Data while on a phone call has been working since LTE came out. It worked on my Note 2, Note 3, and currently works on my Galaxy S5. Also works on my families HTC M7 and M8.
However, it no longer works on the Droid Turbo, and now I believe the N6.
But the original assumption was incorrect, data + voice has been working for years. They did something now that it is not working on new devices coming out.

Samsung S8 - Unlocked Phone - No Wifi Calling? What Else Am I Missing

I bought an unlocked S8 at Best Buy because it was a good deal.
However, I'm noticing AT&T is restricting Wifi calling. There isn't even an option to turn in on.
Are they preventing this? If so, can I get it turned on by them ? I'm assuming there is a ROM I could flash to get it, but I would hate nothing during flashing bricking my phone.
Any other features I'm missing? Since I have really bad coverage at my desk at work, WIFI calling is important to me. I'm considering returning the phone and going to ATT brand, but there is a $35.00 restocking fee. I feel Best Buy should have told me the downsides of an unlocked.
I didn't get any restocking fee when I returned my ATT S8. Got a full refund, no questions asked. Besides if you're just swapping out to another carrier one, I'm sure they will waive it. I have MintSim (Tmo) and WiFi calling can be enabled and works fine for me on the unlocked firmware on my Vzw S8.
AFAIK, AT&T does not allow wifi calling for non-branded phones.
Can anyone explain to my why this would be? Is there any technical reason that they cannot do this on an non branded phone or are they being difficult?
I know it could be that they are strong armming me into another 2 year agreement, but if I can't use Wifi Calling, I cannot use their service due to poor reception at work. I think it would be in their best interest to let me use this feature.
Everyone I talked to on phone and in store basically act like it should be fine.
PS Running Android 7.0
bdaoust said:
Can anyone explain to my why this would be? Is there any technical reason that they cannot do this on an non branded phone or are they being difficult?
I know it could be that they are strong armming me into another 2 year agreement, but if I can't use Wifi Calling, I cannot use their service due to poor reception at work. I think it would be in their best interest to let me use this feature.
Everyone I talked to on phone and in store basically act like it should be fine.
PS Running Android 7.0
Click to expand...
Click to collapse
I am slightly confident that CSC (country/carrier specific code) patch can fix this issue but you would need to look into the other section for that and I say this because it fixed VoLTE issue for some other guys...
WiFi is not possible on AT&T network with the Unlocked version of S8 phones
This may help others who are considering the Unlocked S8.
Note: As of today, no options available from either AT&T or Samsung to enable WiFi calling.
After multiple trips to AT&T, BestBuy Samsung, chat sessions with Samsung support and now calling Samsung Premium Care, I finally confirmed that the Unlocked S8 model does not have any possible software upgrade to enable WiFi calling. Why did so many not know?
Samsung:
Please revise your website to clearly state the limitation, (WiFi is not possible on AT&T network ), with the Unlocked version of your S8 phones.
What's Next?
I was told that there is nothing that Samsung can do for me but Return the phone for Refund.
Now returning this phone requires me to again pay additional cost for replacing/activating another SIM for my old phone to use during the time I process an order for my next phone. Samsung cost me hours of my time and wasted my money.
bdaoust said:
I bought an unlocked S8 at Best Buy because it was a good deal.
However, I'm noticing AT&T is restricting Wifi calling. There isn't even an option to turn in on.
Are they preventing this? If so, can I get it turned on by them ? I'm assuming there is a ROM I could flash to get it, but I would hate nothing during flashing bricking my phone.
Any other features I'm missing? Since I have really bad coverage at my desk at work, WIFI calling is important to me. I'm considering returning the phone and going to ATT brand, but there is a $35.00 restocking fee. I feel Best Buy should have told me the downsides of an unlocked.
Click to expand...
Click to collapse
dealing with the same thing and entirely frustrated. so much wasted time that a simple disclaimer would've saved me from.
wifi calling is a feature enabled by a carrier, not the phone brand. if you want wifi-calling, flash the relevant firmware for your carrier just like i did for VZW to get wifi-calling to work. and btw, this information was widely known by doing some research previous to purchase. i had no problem finding this out but ordered anyway with the intent to flash the firmware.
knightsfury said:
wifi calling is a feature enabled by a carrier, not the phone brand. if you want wifi-calling, flash the relevant firmware for your carrier just like i did for VZW to get wifi-calling to work. and btw, this information was widely known by doing some research previous to purchase. i had no problem finding this out but ordered anyway with the intent to flash the firmware.
Click to expand...
Click to collapse
i flashed it with straight up ATT, all files from here:
joe3681 said:
AT&T QF7 (latest fw)
Click to expand...
Click to collapse
and wifi calling won't work. just gives me this message:
"Oops!
We can't turn on Wi-Fi Calling for your account. Think this message is a mistake? Ask the person who can make account changes to call us..."
After numerous calls to Samsung and AT&T you absolutely cannot enable wifi calling on the unlocked phone. Only phones purchased as AT&T branded are allowed the full feature set.
If in fact you DID buy an AT&T S8, you can unlock it and keep said features, but not in reverse of that. Which blows.
fremitus said:
i flashed it with straight up ATT, all files from here:
and wifi calling won't work. just gives me this message:
"Oops!
We can't turn on Wi-Fi Calling for your account. Think this message is a mistake? Ask the person who can make account changes to call us..."
After numerous calls to Samsung and AT&T you absolutely cannot enable wifi calling on the unlocked phone. Only phones purchased as AT&T branded are allowed the full feature set.
If in fact you DID buy an AT&T S8, you can unlock it and keep said features, but not in reverse of that. Which blows.
Click to expand...
Click to collapse
That really makes no sense.... (Not that you're lying) but there's specific firmwares for the unlocked S8's depending on carrier. the G950U1 has different CSC's depending on what carrier it's used for. Why do that if it doesn't enable that carriers features?!
joe3681 said:
That really makes no sense.... (Not that you're lying) but there's specific firmwares for the unlocked S8's depending on carrier. the G950U1 has different CSC's depending on what carrier it's used for. Why do that if it doesn't enable that carriers features?!
Click to expand...
Click to collapse
flashing other carriers might work (like Tmobile), but not with ATT as they are using based on the IMEI registered with ATT brand.. so flashing any CSC won't enable it as long as you spoke to their customer care and provide your No and other ATT phone to activate Wifi calling on your number.. this is not 100% working method.. search through teh CSC selection forum there people posted a workaround.
KeithDo said:
This may help others who are considering the Unlocked S8.
Note: As of today, no options available from either AT&T or Samsung to enable WiFi calling.
After multiple trips to AT&T, BestBuy Samsung, chat sessions with Samsung support and now calling Samsung Premium Care, I finally confirmed that the Unlocked S8 model does not have any possible software upgrade to enable WiFi calling. Why did so many not know?
Samsung:
Please revise your website to clearly state the limitation, (WiFi is not possible on AT&T network ), with the Unlocked version of your S8 phones.
What's Next?
I was told that there is nothing that Samsung can do for me but Return the phone for Refund.
Now returning this phone requires me to again pay additional cost for replacing/activating another SIM for my old phone to use during the time I process an order for my next phone. Samsung cost me hours of my time and wasted my money.
Click to expand...
Click to collapse
Time I understand. You will never get that back. The SIM card issue I don't understand. Didn't you keep the old sim card from your old phone. Yes, AT&T will have to reactivate it, but they should do that for free. The only time I've had to pay is when I needed to get a new physical SIM card because the size was wrong for the phone I wanted to use. If you kept the old SIM card, you can simply reactivate it and stick it in your old phone again.
joe3681 said:
That really makes no sense.... (Not that you're lying) but there's specific firmwares for the unlocked S8's depending on carrier. the G950U1 has different CSC's depending on what carrier it's used for. Why do that if it doesn't enable that carriers features?!
Click to expand...
Click to collapse
it's all tied to your IMEI, and that can't be changed. the VoLTE and Wifi Calling are non-existent unless you bought an ATT branded phone.
Guys ... I'm still looking for other options BUT this will work ....
If you have a business account you can just go in to the account and change your billing acct IMEI for your unlocked phone to an IMEI of an AT&T S8 (get one from a friend, go to the store and check out the displays, etc)
If you don't have a business acct call support , eventually you can get a person that knows what to do and they can plug in a working IMEI
This works ... works on my S7 Edge as well
Flashed unlocked phone with ATT FW. Then changed my account's imei with the imei from an ATT branded phone and that got me advanced calling options. Wifi calling will worked for about 10 seconds until ATT reads the phone's actual imei and then they turn off wifi calling. Volte will continue to work.
AT&T OTA Update Coming
All, I have just confirmed with AT&T they have made the request for an OTA update to enable WiFi Calling in the Settings Menu from Samsung. The time frame I was given as of yesterday 10/2/2017 was 14 days. So by 10/16/2017 S8 & S8+ phones should receive an OTA update that enables WiFi Calling feature.
vanornum said:
All, I have just confirmed with AT&T they have made the request for an OTA update to enable WiFi Calling in the Settings Menu from Samsung. The time frame I was given as of yesterday 10/2/2017 was 14 days. So by 10/16/2017 S8 & S8+ phones should receive an OTA update that enables WiFi Calling feature.
Click to expand...
Click to collapse
Very interesting! This would be a life saver. Do you trust their timeframe?
Sent from my Nexus 7 using Tapatalk
Hey. I finally found the Wifi calling settings.
Phone/ Dialer > Context Menu (the three dots on top right corner) > Settings > Wi-Fi calling > And I see my three options there.
I'm on Galaxy S8 G9500U1
Sent from my SM-G950U1 using Tapatalk
aravreddy2231 said:
Hey. I finally found the Wifi calling settings.
Phone/ Dialer > Context Menu (the three dots on top right corner) > Settings > Wi-Fi calling > And I see my three options there.
I'm on Galaxy S8 G9500U1
Sent from my SM-G950U1 using Tapatalk
Click to expand...
Click to collapse
Hmm, I don't see them (yet?)... SM-G955U1 with phone app version 2.3.00.20. What version of the app do you have?
Sent from my SM-G955U1 using Tapatalk
Same
Sent from my SM-G950U1 using Tapatalk

1+5 on sprint?

Is anyone going to try and see how the new phone works on sprint? I'm thinking about it.
I saw it has all the bands compatible. Curious if anyone is going to try this.
i have sprint, and want it... waiting for the 128gb to be available again...
edit: chatted with oneplus about sprint compatibility, got this answer : As for that concern, we still don't have official information though you may just wait for further updates from OnePlus or you can refer to our Official website.
idk about 600 for a phone that might work, stuck with about a year left on a 2 year contract...
still waiting to get the sprint chat to show on the site lol.
k4m4kz1 said:
i have sprint, and want it... waiting for the 128gb to be available again...
Click to expand...
Click to collapse
So your going to give it a shot also?
realbananA said:
So your going to give it a shot also?
Click to expand...
Click to collapse
see my edit above lol
My concern would be that by all bands, they are talking about GSM. Verizon and Sprint use CDMA. I would hold off if I was on either of those carriers.
Sent from my OnePlus 3T using XDA Labs
mikeprius said:
I saw it has all the bands compatible. Curious if anyone is going to try this.
Click to expand...
Click to collapse
This isn't quite correct. Verizon uses primarily Band 0 CDMA which the OnePlus 5 (And 3/3T) have included. They all lack Band 1 CDMA which is what Sprint primarily uses and Verizon uses in some major markets. Sprint also uses Band 10 CDMA. For Verizon, you can simply pop the SIM in and get service, but Sprint activation is always tied to the device and not the SIM. Sprint only allows approved devices on their network which is the biggest obstacle.
So your service would not be optimal for 1X/3G even if it were activated on Sprint. You'd most likely get no signal at all. The device does support all the LTE Bands, but while there's CDMA Support the OP5 doesn't have any of the CDMA Bands that Sprint utilizes. If you were ever able to get the device manually added in the system or Sprint approved the device on the network, then it would be essentially an LTE-Only device. Note that this might be handy or interesting in a Dual SIM set-up but probably not very optimal for an ordinary Sprint user.
MrMeeseeks said:
My concern would be that by all bands, they are talking about GSM. Verizon and Sprint use CDMA. I would hold off if I was on either of those carriers.
Sent from my OnePlus 3T using XDA Labs
Click to expand...
Click to collapse
It does work on Verizon as did the 3/3T. Verizon uses Band 0 in most of the country, but they do use Band 1 in some major cities, so it's not optimal. The OP3/3T/5 supports Band 2/4 but not Band 13 which is the primary LTE Band for Verizon. People have gotten 1X/3G/LTE working on Verizon, but it's not optimal due to the band support. There also may have been issues switching between CDMA and LTE but haven't checked recently for updates. If going for Dual SIM then it may work well for some people's needs.
According to this site the phone is fully compatible with Sprint then Verizon, I saw some post where people put Verizon sims and they're not able to get LTE but according to this site it should with Sprint.
Now like the comment above, Sprint will have to approve the phone in their system since they have to activate the phone, yeah it sucks but it's how evil Sprint works, Sometimes they have to add the IMEI number of the phone to put it in their system to activate.
Try and see what they said. When Google released phones that were compatible with Sprint, they did activate the phone you bought through google so this can be the same
gypsy214 said:
According to this site the phone is fully compatible with Sprint then Verizon, I saw some post where people put Verizon sims and they're not able to get LTE but according to this site it should with Sprint.
Now like the comment above, Sprint will have to approve the phone in their system since they have to activate the phone, yeah it sucks but it's how evil Sprint works, Sometimes they have to add the IMEI number of the phone to put it in their system to activate.
Try and see what they said. When Google released phones that were compatible with Sprint, they did activate the phone you bought through google so this can be the same
Click to expand...
Click to collapse
It has zero support for CDMA (1X/3G) on Sprint since Sprint uses Band 1 and Band 10 CDMA. It would be unlikely that Sprint would whitelist the OP5 or manually add them to the database, especially considering they never added the ZTE Axon 7 which had full support for Sprint. Would certainly be pretty awesome if they did so and would benefit anyone intending to use the OP5 as an LTE-Only device.
I got the OP5 today and poped my sim in and got LTE and the carrier ID on the sim carrier information. But i have to wait and see if i can get them to add the device into the system. Which i will be on the phone with them all day I'm sure. But I'm going to give it a shot at the least. So far the phone seems awesome.
gmac24 said:
I got the OP5 today and poped my sim in and got LTE and the carrier ID on the sim carrier information. But i have to wait and see if i can get them to add the device into the system. Which i will be on the phone with them all day I'm sure. But I'm going to give it a shot at the least. So far the phone seems awesome.
Click to expand...
Click to collapse
We're rooting for ya! Get it... ROOTing...
gmac24 said:
I got the OP5 today and poped my sim in and got LTE and the carrier ID on the sim carrier information. But i have to wait and see if i can get them to add the device into the system. Which i will be on the phone with them all day I'm sure. But I'm going to give it a shot at the least. So far the phone seems awesome.
Click to expand...
Click to collapse
Any luck in getting it activated?
realbananA said:
Any luck in getting it activated?
Click to expand...
Click to collapse
So far no. But today brings a new day. lol not giving up just yet. The guys I have talked to last night with Sprint tech support, told me to go into the store and get a new sim and that should fix my problem. They are saying that because I'm coming from a IPhone a new sim card is required. I will update tonight when I get done.
gmac24 said:
So far no. But today brings a new day. lol not giving up just yet. The guys I have talked to last night with Sprint tech support, told me to go into the store and get a new sim and that should fix my problem. They are saying that because I'm coming from a IPhone a new sim card is required. I will update tonight when I get done.
Click to expand...
Click to collapse
Pls do I need a new phone
gmac24 said:
So far no. But today brings a new day. lol not giving up just yet. The guys I have talked to last night with Sprint tech support, told me to go into the store and get a new sim and that should fix my problem. They are saying that because I'm coming from a IPhone a new sim card is required. I will update tonight when I get done.
Click to expand...
Click to collapse
Any luck with new sprint sim card? I was not able to activate OnePlus 5 on Sprint Service. Here is comments from Sprint customer care:-
Laine P. : I totally understand how much you wanted to activate your phone. However, to activate it here in our network, I would suggest to contact back oneplus company to let the device be activated so that it will be loaded here in our system.
When I contact OnePlus they said "We are not supporting Sprint and Verizon"
I will be watching this very closely.
Harjinder.Sidhu said:
Any luck with new sprint sim card? I was not able to activate OnePlus 5 on Sprint Service. Here is comments from Sprint customer care:-
Laine P. : I totally understand how much you wanted to activate your phone. However, to activate it here in our network, I would suggest to contact back oneplus company to let the device be activated so that it will be loaded here in our system.
When I contact OnePlus they said "We are not supporting Sprint and Verizon"
Click to expand...
Click to collapse
Well I will have my final answer today. I go back into the store and get my sim card and pop it in and see what happens if this doesn't work. Bye OP5 :crying:
gmac24 said:
Well I will have my final answer today. I go back into the store and get my sim card and pop it in and see what happens if this doesn't work. Bye OP5 :crying:
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Click to collapse
I'm guessing it didn't work?
realbananA said:
I'm guessing it didn't work?
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Click to collapse
No it didn't. :crying: I spent several days and driving to different stores and getting different stories from sprint tech support, but I expected that.
gmac24 said:
No it didn't. :crying: I spent several days and driving to different stores and getting different stories from sprint tech support, but I expected that.
Click to expand...
Click to collapse
Disappointing to hear. Thanks for giving it a try and letting us know and sharing the info

G935T unlocked-running at&t firmware on att network. Can't get wi-fi calling working!

G935T unlocked-running at&t firmware on att network. Can't get wi-fi calling working!
Sure would like some help from the brilliant minds on this board....
I bought an unlocked G935T a few months ago and have been using it on At&t (with the G935T firmware) for the last few months.
Recently, I needed to use wi-fi calling. Couldn't get it to work on TMo firmware so last night I flashed G935A firmware one it (QF3)
Firmware is working fine - everything seems to be working EXCEPT wi-fi calling. Damn you, AT&T!
I can use one of the free VOIP apps like Google Voice, of course, but when I call out I need to be able to use my cell phone number and really don't want to have to forward calls to GV every time I go into this particular building that doesn't have any cell reception.
Chatting with support this morning, they said it can't be done. I don't understand - if the hardware is the same across all US Variants, then why can't At&t firmware enable this feature? What am I missing??? GRRRRR
danoelise said:
Sure would like some help from the brilliant minds on this board....
I bought an unlocked G935T a few months ago and have been using it on At&t (with the G935T firmware) for the last few months.
Recently, I needed to use wi-fi calling. Couldn't get it to work on TMo firmware so last night I flashed G935A firmware one it (QF3)
Firmware is working fine - everything seems to be working EXCEPT wi-fi calling. Damn you, AT&T!
I can use one of the free VOIP apps like Google Voice, of course, but when I call out I need to be able to use my cell phone number and really don't want to have to forward calls to GV every time I go into this particular building that doesn't have any cell reception.
Chatting with support this morning, they said it can't be done. I don't understand - if the hardware is the same across all US Variants, then why can't At&t firmware enable this feature? What am I missing??? GRRRRR
Click to expand...
Click to collapse
You should be able to do it, because I'm doing the opposite. I have a SM-G935A AT&T phone running a T-Mobile firmware and SIM. I'm capable of doing wifi calling/sms etc. Even though my S7 Edge is basically a T-mobile one, when I login to my TMO account it shows the phone not a TMO - due to the IMEI #. I bet the AT&T system doesn't recognize the phone as one of theirs and are unable to activate this feature.
Yeah, I went into the AT&T store today and they confirmed. It cannot be done. Well, it CAN be done, but they aren't willing to do it.
danoelise said:
Yeah, I went into the AT&T store today and they confirmed. It cannot be done. Well, it CAN be done, but they aren't willing to do it.
Click to expand...
Click to collapse
Those bastards!..Time to move to T-Mobile?
Mr. Clown said:
Those bastards!..Time to move to T-Mobile?
Click to expand...
Click to collapse
Isn't TMO doing same to you? All carriers are evil
cnewsgrp said:
Isn't TMO doing same to you? All carriers are evil
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Click to collapse
Nope, I have 2 non-tmobile phones running TMO firmware and they work like charm.

If I switch my SM-950U1 unbranded to AT&T ROM, will I get wifi calling and HD voice?

If I switch my SM-950U1 unbranded to AT&T ROM, will I get wifi calling and HD voice?
I have an unbranded SM-950U1 on AT&T. The phone works fine for calling (non-HD), LTE, and everything else. The only two things that don't work are wifi calling and HD voice. If I switch to an AT&T ROM, will I get wifi calling and HD voice?
I've read lots of posts saying it should work, or that it shouldn't work, or that it might work, or that somebody had a friend it worked for, or that somebody heard of somebody where it worked for three days, and then stopped. I've heard that I need to give AT&T an AT&T branded IMEI number to associate my sim with, but that will only make it work for a week.
What is the truth? This phone has been out for over a year, somebody must have put an unbranded U1 on an AT&T ROM by now.
I know I can try it and see, but if there is a definitive answer then I know to either go through the trouble, or not bother. I'm hesitant to wipe, because I've never wiped this phone, been through the beta and oreo and everything, and it's working great, with good battery life. My only problem is that I'm occasionally in buildings with wifi coverage, but poor mobile reception, and would like wifi calling in those situations. If I can get wifi calling then it's worth the trouble of wiping, and dealing with AT&T bloat.
J M L said:
I have an unbranded SM-950U1 on AT&T. The phone works fine for calling (non-HD), LTE, and everything else. The only two things that don't work are wifi calling and HD voice. If I switch to an AT&T ROM, will I get wifi calling and HD voice?
I've read lots of posts saying it should work, or that it shouldn't work, or that it might work, or that somebody had a friend it worked for, or that somebody heard of somebody where it worked for three days, and then stopped. I've heard that I need to give AT&T an AT&T branded IMEI number to associate my sim with, but that will only make it work for a week.
What is the truth? This phone has been out for over a year, somebody must have put an unbranded U1 on an AT&T ROM by now.
I know I can try it and see, but if there is a definitive answer then I know to either go through the trouble, or not bother. I'm hesitant to wipe, because I've never wiped this phone, been through the beta and oreo and everything, and it's working great, with good battery life. My only problem is that I'm occasionally in buildings with wifi coverage, but poor mobile reception, and would like wifi calling in those situations. If I can get wifi calling then it's worth the trouble of wiping, and dealing with AT&T bloat.
Click to expand...
Click to collapse
It all depends on if you are using AT&T's prepaid or postpaid service. If you're using AT&T prepaid, then you probably won't be able to get wi-fi calling on your phone. If you're on AT&T's postpaid service then you should be able to get wi-fi calling on your phone. I know this from my own personal experience. I had their prepaid service and couldn't get wi-fi calling to work on my phone. When I switched to their postpaid service then I was able to get the wi-fi calling to work for me.
Cindy
Sent from my SM-G950U using Tapatalk
cindylike24 said:
It all depends on if you are using AT&T's prepaid or postpaid service. If you're using AT&T prepaid, then you probably won't be able to get wi-fi calling on your phone. If you're on AT&T's postpaid service then you should be able to get wi-fi calling on your phone. I know this from my own personal experience. I had their prepaid service and couldn't get wi-fi calling to work on my phone. When I switched to their postpaid service then I was able to get the wi-fi calling to work for me.
Click to expand...
Click to collapse
Thanks for your answer. Yes, I do have a postpaid plan. Do you have a 950U1 you converted to AT&T, or do you have a 950U AT&T that you converted from pre- to post-paid?
J M L said:
Thanks for your answer. Yes, I do have a postpaid plan. Do you have a 950U1 you converted to AT&T, or do you have a 950U AT&T that you converted from pre- to post-paid?
Click to expand...
Click to collapse
I have a SM-950U on the AT&T network.
Sent from my SM-G950U using Tapatalk
J M L said:
I have an unbranded SM-950U1 on AT&T. The phone works fine for calling (non-HD), LTE, and everything else. The only two things that don't work are wifi calling and HD voice. If I switch to an AT&T ROM, will I get wifi calling and HD voice?
I've read lots of posts saying it should work, or that it shouldn't work, or that it might work, or that somebody had a friend it worked for, or that somebody heard of somebody where it worked for three days, and then stopped. I've heard that I need to give AT&T an AT&T branded IMEI number to associate my sim with, but that will only make it work for a week.
What is the truth? This phone has been out for over a year, somebody must have put an unbranded U1 on an AT&T ROM by now.
I know I can try it and see, but if there is a definitive answer then I know to either go through the trouble, or not bother. I'm hesitant to wipe, because I've never wiped this phone, been through the beta and oreo and everything, and it's working great, with good battery life. My only problem is that I'm occasionally in buildings with wifi coverage, but poor mobile reception, and would like wifi calling in those situations. If I can get wifi calling then it's worth the trouble of wiping, and dealing with AT&T bloat.
Click to expand...
Click to collapse
Did you ever get Wi-Fi calling etc. to work? I also have an unlocked S8 (SM-950U1) direct from Samsung and would like to have these features work. I've online chatted with multiple techs, received a new SIM card and still can't get it.
I've read things about changing my CSC and flashing an AT&T ROM but would also like a definitive answer.
The_Big_H said:
Did you ever get Wi-Fi calling etc. to work? I also have an unlocked S8 (SM-950U1) direct from Samsung and would like to have these features work. I've online chatted with multiple techs, received a new SIM card and still can't get it.
I've read things about changing my CSC and flashing an AT&T ROM but would also like a definitive answer.
Click to expand...
Click to collapse
No, I never got it to work, but I didn't try installing the AT&T rom. I did try giving AT&T the IMEI number from an AT&T branded S7, but that didn't work. After they made the switch, my phone had lots of trouble with the network for about 15 minutes, and then it started working again. My web profile at AT&T also switched from S7 back to unknown, so I'm guessing their systems picked up I was using a different IMEI.

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