WiFi Calling on Factory Unlocked S8+ - Samsung Galaxy S8+ Questions & Answers

A couple of weeks back, I purchased a factory unlocked S8+ Model #G955U1, Baseband Version G955U1EU1AQE3 (The AT&T Galaxy S8+ has different Model and Build #s), inserted my AT&T SIM card and have been using it since. Then I decided to activate WiFi calling, however, unlike my wife's iPhone 7, my Galaxy does not have the option to enable WiFi calling (this option should be under Settings>Connections). After some research, I found out that this a carrier feature which AT&T must provision. When I asked them to do it, they provisioned it on my wife's iPhone 7 but not on my Galaxy, so I called them again and asked them to provision it on the Galaxy. Although they insist that they did, the feature does not show up on under AT&T Devices (It shows up under the iPhone but not the Galaxy). After spending no less than two hours speaking to three agents, I learned that AT&T does not have in their data base the IMEI number of the Galaxy because it was not purchased through them. So obviously, not having an IMEI number, the WiFi calling feature is not going to be pushed to my Galaxy. Not being able to solve the problem, they escalated it to another level who is supposed to contact me two days from now. A friend purchased his Galaxy S8+ through AT&T and the WiFi calling option is there in Settings>Connection and he is able to toggle it on or off. When I used AT&T's IMEI Verification tool, the result was "Device is compatible but we cannot find matching SIM card".
Any and all input would be appreciated.

Same here. Looks like wifi calling is not a feature that is available on the unlocked version unfortunately. Same with using LTE while on calls and built in visual voicemail :/
You have some advantages going unlocked but you lose some things too.
Sent from my iPhone using Tapatalk

But you can always use Odin to flash the ATT firmware to the unlocked device. There's plenty of threads here regarding this very subject.

Mr. Orange 645 said:
But you can always use Odin to flash the ATT firmware to the unlocked device. There's plenty of threads here regarding this very subject.
Click to expand...
Click to collapse
True, just keep in mind that future att updates can't be done via OTA - which can be a pain too.
Sent from my iPhone using Tapatalk

With the unlocked s8+ i've found that wifi calling and volte only worked on T-Mobile, I tried it with T-Mo and verizon. It stinks that ATT cant be more like T-Mo with accepting non branded devices

Poison423 said:
With the unlocked s8+ i've found that wifi calling and volte only worked on T-Mobile, I tried it with T-Mo and verizon. It stinks that ATT cant be more like T-Mo with accepting non branded devices
Click to expand...
Click to collapse
Same here. No issues with wi-fi calling on T-Mobile network. I also have the same unlocked phone.

Edited. Read the thread

Gr8man001 said:
Same here. No issues with wi-fi calling on T-Mobile network. I also have the same unlocked phone.
Click to expand...
Click to collapse
I am pleasantly surprised and a bit puzzled because when I spoke to T-Mobile Tech yesterday, she could not confirm if WiFi calling will work on unlocked S8+. If I can be assured that it will work, I will switch to T-Mobile.
Please do me a great favor and check if your unlocked S8+ has the same Model and Build Numbers as mine. Here are my numbers:
Model #G955U1
SM-G955UZKAXAA
Baseband Version G955U1EU1AQE3
Thank you.

TheBoozer said:
I am pleasantly surprised and a bit puzzled because when I spoke to T-Mobile Tech yesterday, she could not confirm if WiFi calling will work on unlocked S8+. If I can be assured that it will work, I will switch to T-Mobile.
Please do me a great favor and check if your unlocked S8+ has the same Model and Build Numbers as mine. Here are my numbers:
Model #G955U1
SM-G955UZKAXAA
Baseband Version G955U1EU1AQE3
Thank you.
Click to expand...
Click to collapse
All the information you provided matched with my phone. As a matter of fact, I also tried my friends SIM who is on MVNO called Mint Mobile that runs on T-mobile network. Mint also allowed me to make wi-fi calling. I am surprised that t-mobile rep could not confirm this feature because this feature is on by default! If I don't want to make wifi calls, I have to turn it off. The only little annoying part is that you get constant notification," Calls will be made over WiFi". Even when you block this notification, it will reappear on the reboot

Gr8man001 said:
All the information you provided matched with my phone. As a matter of fact, I also tried my friends SIM who is on MVNO called Mint Mobile that runs on T-mobile network. Mint also allowed me to make wi-fi calling. I am surprised that t-mobile rep could not confirm this feature because this feature is on by default! If I don't want to make wifi calls, I have to turn it off. The only little annoying part is that you get constant notification," Calls will be made over WiFi". Even when you block this notification, it will reappear on the reboot
Click to expand...
Click to collapse
Thank you indeed for your response. When I got my S8+ and before inserting AT&T SIM, this feature was NOT listed under Settings>Connections. I was informed by a Samsung agent that the carriers will push this feature to the phone through their SIM after they provision the feature. So now since my SIM is AT&T and my phone is unlocked, and its IMEI number is not in AT&T's data base, I don't have the feature listed.

Unfortunately, I can't comment on at&t network. On t-mobile, I did not have to do anything except during the initial setup, I was asked if I was ok to make wifi phone calls when a wifi connection was available & the signal was strong. I still have the option not to use this feature. You may wantvto visit a t-mobile store or find a friend who is on t-mobile network. It might not be a bad idea to reset the phone (after backing up) when you get the new sim card. Good luck ?

Gr8man001 said:
Unfortunately, I can't comment on at&t network. On t-mobile, I did not have to do anything except during the initial setup, I was asked if I was ok to make wifi phone calls when a wifi connection was available & the signal was strong. I still have the option not to use this feature. You may wantvto visit a t-mobile store or find a friend who is on t-mobile network. It might not be a bad idea to reset the phone (after backing up) when you get the new sim card. Good luck ?
Click to expand...
Click to collapse
Very good advice, thank you again for all your help.

on my s8+ wifi calling option is found in the phone settings , simply open the phone app hit those 3 dots , choose settings and wifi calling is at the bottom of the options .

peekie said:
on my s8+ wifi calling option is found in the phone settings , simply open the phone app hit those 3 dots , choose settings and wifi calling is at the bottom of the options .
Click to expand...
Click to collapse
I switched yesterday from AT&T to T-Mobile and immediately the wifi calling showed up in Phone Settings as you mentioned. However before switching from AT&T to T-Mobile, wifi calling was not anywhere to be found.

TheBoozer said:
I switched yesterday from AT&T to T-Mobile and immediately the wifi calling showed up in Phone Settings as you mentioned. However before switching from AT&T to T-Mobile, wifi calling was not anywhere to be found.
Click to expand...
Click to collapse
That's because WiFi calling and VoLTE are not available on ATT using the US Unlocked device. You have to either buy an ATT carrier version, or flash the ATT firmware to your current device.

Try to reset to factory defaults with sim inside
I'm on Argentina and with unlocked software i got wifi calling when the device is set up with my sim inside

Mr. Orange 645 said:
That's because WiFi calling and VoLTE are not available on ATT using the US Unlocked device. You have to either buy an ATT carrier version, or flash the ATT firmware to your current device.
Click to expand...
Click to collapse
I found that after wasting several hours with AT&T's techs. The 3rd option is to dump AT&T and switch to a carrier that has wifi calling available for unlocked S8/S8+ phones such as T-Mobile.

Wi-Fi Calling works great for me
TheBoozer said:
A couple of weeks back, I purchased a factory unlocked S8+ Model #G955U1, Baseband Version G955U1EU1AQE3 (The AT&T Galaxy S8+ has different Model and Build #s), inserted my AT&T SIM card and have been using it since. Then I decided to activate WiFi calling, however, unlike my wife's iPhone 7, my Galaxy does not have the option to enable WiFi calling (this option should be under Settings>Connections). After some research, I found out that this a carrier feature which AT&T must provision. When I asked them to do it, they provisioned it on my wife's iPhone 7 but not on my Galaxy, so I called them again and asked them to provision it on the Galaxy. Although they insist that they did, the feature does not show up on under AT&T Devices (It shows up under the iPhone but not the Galaxy). After spending no less than two hours speaking to three agents, I learned that AT&T does not have in their data base the IMEI number of the Galaxy because it was not purchased through them. So obviously, not having an IMEI number, the WiFi calling feature is not going to be pushed to my Galaxy. Not being able to solve the problem, they escalated it to another level who is supposed to contact me two days from now. A friend purchased his Galaxy S8+ through AT&T and the WiFi calling option is there in Settings>Connection and he is able to toggle it on or off. When I used AT&T's IMEI Verification tool, the result was "Device is compatible but we cannot find matching SIM card".
Any and all input would be appreciated.
Click to expand...
Click to collapse
To access Wi-Fi calling you need to open your phone app and hit the settings button in the top right corner and then scroll all the way to the bottom and it will be there.

Goldenstreak76 said:
To access Wi-Fi calling you need to open your phone app and hit the settings button in the top right corner and then scroll all the way to the bottom and it will be there.
Click to expand...
Click to collapse
Unlocked US version it isn't there on AT&T.

This is a Samsung Issue not AT&T...according to Samsung
The following is a record of your online chat.
General Info
Chat start time November 15, 2017 3:42:19 PM EST
Chat end time November 15, 2017 4:00:23 PM EST
Duration (actual chatting time) 00:18:03
Operator Rohit K
Chat Transcript
Info: Thank you for choosing to chat with us. An agent will be with you shortly.
Info: You are now chatting with Rohit K.
Rohit K: Hi, thank you for reaching out to Samsung Technical Support. How may I assist you?
You: how do i turn on HD voice on my s8+ on the att network?
Rohit K: I'll help you with the required information.
You: wi fi calling
Rohit K: Here are the steps.
Rohit K: Go to Settings. Tap Advanced Calling under WIRELESS NETWORKS. Tap Advanced Calling again to turn it On or Off.
You: I've gone through the steps outlined in your Wi-Fi calling setup but when I do the search no wi-fi calling shows up in the search
Rohit K: Just to confirm, is it a unlocked phone?
You: yes
Rohit K: Unfortunately, we cannot use the wifi calling option on the unlocked phones. Samsung is working on this issue.
You: That's odd....you would think it would work better. HOw long has it been an issue?
You: I just got my phone yesterday
Rohit K: The WiFi calling feature is disabled on the unlocked phones, as we can use any carrier on the unlocked phones.
Rohit K: You'll find it on the carrier enabled phone.
You: How can I exchange this phone for a new att phone
Rohit K: May I know the place of purchase?
You: Samsung.com
Rohit K: Yes, you can return the phone with in 15 days from the date of purchase.
Rohit K: We have a dedicated order support team, for your convenience I'll share the contact number of our dedicated team. Once contact them, they'll help you in exchanging the phone.
Rohit K: you may call us toll-free at 855-726-8721,
seven days a week, 9 a.m.-9 p.m. EST with your order
number.

Related

VOLTE on AT&T

Though this phone is capable of VOLTE it has not, as of yet, functioned on my carrier AT&T. My line is supposedly provisioned properly in their system for VOLTE however the agent I spoke with informed me that an IMEI must be whitelisted on their servers before it will actually work. Basically this means that normally only the phones you buy from them are VOLTE capable because of their whitelisting system. Now this agent supposedly filed a case to get my IMEI added to this list which should supposedly allow for the VOLTE to then function on the AT&T network. And so if this actually ends up working I will report back so others can do the same if they wish to use VOLTE on AT&T.
Cool.... I tried the same but did not get offered to try and get my imei white listed.
Sent from my XT1575 using Tapatalk
timde9 said:
Though this phone is capable of VOLTE it has not, as of yet, functioned on my carrier AT&T. My line is supposedly provisioned properly in their system for VOLTE however the agent I spoke with informed me that an IMEI must be whitelisted on their servers before it will actually work. Basically this means that normally only the phones you buy from them are VOLTE capable because of their whitelisting system. Now this agent supposedly filed a case to get my IMEI added to this list which should supposedly allow for the VOLTE to then function on the AT&T network. And so if this actually ends up working I will report back so others can do the same if they wish to use VOLTE on AT&T.
Click to expand...
Click to collapse
This support doc from ATT mentions needing a specific SIM to be able to access voLTE. Did you make sure yours was indeed a UICC-G SIM card ?
https://www.att.com/esupport/article.jsp?sid=KB425890&cv=820
Yeah but that's not the problem this sim came right out of my att galaxy s6 which the VOLTE worked very well on. I'm gonna call back later today after work and see if my case went anywhere
Crappyvate said:
This support doc from ATT mentions needing a specific SIM to be able to access voLTE. Did you make sure yours was indeed a UICC-G SIM card ?
https://www.att.com/esupport/article.jsp?sid=KB425890&cv=820
Click to expand...
Click to collapse
I have a Pure on ATT, with a brand new NanoSIM card (picked it up from the AT&T store just after I picked up the phone); the 9th and 10th digits of the ICCID are '27', so it is a UICC-G SIM.. I was bummed to see that VoLTE wouldn't work on the device; all my investigation led me to the phone not being whitelisted in ATT's database. The 'Enhanced 4G LTE Mode' setting doesn't show up at all under Cellular Networks. I ran across a page that says to do the '*#*#4636#*#*' trick, go to 'Phone Info', and make sure that the toggle shows 'TURN OFF VOLTE PROVISIONED FLAG' (versus 'Turn On').. on my phone it showed it as provisioned to start with, but the option to enable Enhanced 4G LTE still is gone.
Apparently with Verizon customers, if the provisioned flag is on, but that menu option is missing, they need to log into their Verizon account and enable the 'HD Voice' flag on their account, at which point the option to enable it will show up. I'm guessing that basically whitelists their devices IMEI, which is the part we're apparently missing with ATT. :/
---------- Post added at 02:02 PM ---------- Previous post was at 01:57 PM ----------
timde9 said:
Yeah but that's not the problem this sim came right out of my att galaxy s6 which the VOLTE worked very well on. I'm gonna call back later today after work and see if my case went anywhere
Click to expand...
Click to collapse
Hopefully it will, or else they will figure out that they need to let people who want this enable it and make it an account setting we can change! Verizon allows BYOD HD Voice, why can't ATT?!
natecarlson said:
I have a Pure on ATT, with a brand new NanoSIM card (picked it up from the AT&T store just after I picked up the phone); the 9th and 10th digits of the ICCID are '27', so it is a UICC-G SIM.. I was bummed to see that VoLTE wouldn't work on the device; all my investigation led me to the phone not being whitelisted in ATT's database. The 'Enhanced 4G LTE Mode' setting doesn't show up at all under Cellular Networks. I ran across a page that says to do the '*#*#4636#*#*' trick, go to 'Phone Info', and make sure that the toggle shows 'TURN OFF VOLTE PROVISIONED FLAG' (versus 'Turn On').. on my phone it showed it as provisioned to start with, but the option to enable Enhanced 4G LTE still is gone.
Apparently with Verizon customers, if the provisioned flag is on, but that menu option is missing, they need to log into their Verizon account and enable the 'HD Voice' flag on their account, at which point the option to enable it will show up. I'm guessing that basically whitelists their devices IMEI, which is the part we're apparently missing with ATT. :/
---------- Post added at 02:02 PM ---------- Previous post was at 01:57 PM ----------
Hopefully it will, or else they will figure out that they need to let people who want this enable it and make it an account setting we can change! Verizon allows BYOD HD Voice, why can't ATT?!
Click to expand...
Click to collapse
I will follow up with ATT as well as they assure me that voLTE was available in my area..
Your APN also needs to point the the correct server.
APN: nxtgenphone
MMSC: http://mmsc.mobile.att.net
MMS Proxy: proxy.mobile.att.net
MMS Port: 80
APN Type: default,mms,supl,hipri,fota
My question is how to tell when you are on VOLTE?
goolac said:
My question is how to tell when you are on VOLTE?
Click to expand...
Click to collapse
If you can see the "Enhanced 4G LTE Mode" setting, and it's turned on, in theory it should work.
Then, when you place a call, your status bar's cell signal icon should still show 'LTE' instead of falling back to 'HSPA'.
I ordered this phone via Moto Maker and expect to have it in my hands next week. I currently have an older AT&T sim from my Samsung Galaxy S4, and imagine that I would need a new one to utilize VoLTE. Thanks to all of you trying to figure this out.
I found out from another at&t rep that the guy who told me about creating a case apparently did nothing but keep me on hold for a long time because she couldn't locate this apparent case anywhere. After asking her some hard questions I have gotten her to divulge that hdvoice and VOLTE are operating on lte band 2 or 1900 frequency. If I'm not mistaken this phone is already capable of that band right now even without marshmallow so there is almost certainly some sort of white list on at&ts part. Honestly I will probably write to the President about this because its not like its a security issue its just an absurdity
I asked a friend of mine that works as a manager at a corporate store here in town if he knew anything about it... He said it would be something to ask tech support, but he's not heard of a whitelist for VoLTE services. He did also say that most of what they do is just adding IMEI's to the system, and that they don't get BYOD cases very often...
I also work for AT&T, but not in the mobility side... Currently no contacts in the tech side of mobility either.
/scratches head
Am I the only one thinking that this really shouldn't be such a big mystery?
Especially for actual AT&T Wireless reps?
Here is a link to the ATT HD Voice info page... Turns out I have a goPhone plan and so HD is restricted.
http://www.att.com/esupport/article.html#!/wireless/KM1046250
It says in my online account that I am provisioned for VOLTE and from what I discovered from tech support the VOLTE operates on a frequency band that is fully supported by this phone. A whitelisting approach is then the only possible explanation at this point and I will be writing, the President to figure out why
It seems that VOLTE is not yet available on our phones. This is what I was told:
"Enrique: At the moment, VOLTE is only compatible with your Samsung S5 for the Moto X Pure, we are still waiting for a firmware update from Motroloa to have the feature enabled."
and then
"Enrique: Actually when the firmware is released, VOLTE will automatically be enabled on the Moto X, all you need to do is turn it on by heading over to Settings > More Networks > Mobile Networks > VoLTE"
So it seems we need a firmware update from Motorola. Maybe I missed something on this, though?
I called AT&T yesterday and they also confirmed that your account must be 'enabled' for VoLTE, but their "advanced' engineers (whatever this means) also need to provision your device on the back end. My ticket has an SLA of 12/22. I suspect it should be done much sooner than this and will also update everyone on my findings/results.
Just FYI, volte works perfectly on my MXPE on Verizon. I did have to call and have the feature added. Rebooted the phone, and it was enabled. The firmware DOES fully support it so the problem is likely on AT&T's end. Please keep us updated.
Update from ATT Advanced Tech Support.
"April: At this time we only support VOLTE for AT&T devices."
---------- Post added at 08:44 AM ---------- Previous post was at 08:24 AM ----------
So upon further discussion with ATT Advanced Tech Support, the MXPE is NOT on their list of approved VOLTE devices because it's not an ATT device.
That sucks.
Yep, AT&T is the worst carrier because they are one of the largest (just behind Verizon) and aren't bound to any regulation such as the C-block agreement that Verizon must adhere to. So, that means that AT&T services can be restricted to AT&T devices and only those devices. Verizon and T-Mobile have opened up VoLTE to unlocked phones, however Wifi calling seems to be another story. T-Mobile makes Wifi calling available to Nexus devices, and I'm not sure if agreements are needed between the carrier and phone manufacturer (or proxy for Nexuses - Google). Verizon will definitely limit Wifi calling to Verizon devices too, I'm sure of it, at least at the start. They'll make up some technical or security reason for disallowing unlocked phones.
I wouldn't worry about it too much though. VoLTE is more of a necessity for Verizon because they can't do simultaneous voice/data when on a CDMA call (2013 Moto X can). HSPA/HSPA+ supports voice and data. VoLTE often comes with other issues too, depending on network congestion. Unfortunately, carriers are struggling to keep up with demand for data, and VoLTE is no exception to that as calls are data packets.
VoLTE and VoWifi (Wifi calling) are part of the IMS services framework, and it is up to the carrier to allow access to that framework.
timde9 said:
I found out from another at&t rep that the guy who told me about creating a case apparently did nothing but keep me on hold for a long time because she couldn't locate this apparent case anywhere. After asking her some hard questions I have gotten her to divulge that hdvoice and VOLTE are operating on lte band 2 or 1900 frequency. If I'm not mistaken this phone is already capable of that band right now even without marshmallow so there is almost certainly some sort of white list on at&ts part. Honestly I will probably write to the President about this because its not like its a security issue its just an absurdity
Click to expand...
Click to collapse
This isn't surprising. I recently had a HORRIBLE experience with AT&T U-Verse (yes I know, different department but same company). They sold me "fiber" Internet which turned out to be DSL and talked me into switching from 60MBPS Charter cable. Long story short, one of the many lies I was told is that I could cancel within the first month without paying any service or installation charges.
....so I cancelled in July only a couple weeks after starting service. I was told by a rep that I would receive a bill only because it's issued before the adjustments are issued and that the account will be zeroed out. The following month I called back when I got another bill. And I've called every month since (several times a month) and received the same story from every rep I've talked to. Each rep says they've zeroed the account but they can't e-mail or fax out any confirmation. I've even been told this by managers. Some of the reps are too lazy for this lie and they'll pretend I've called the wrong department and transfer me to a dead extension, which disconnects the call.
Yesterday I received a collection notice for this. That's going to ding my 809 credit score! AT&T is a shady company! As a long time Verizon Wireless customer I can say that I've never received this kind of service from any tier of their support. I'd highly recommend anyone having issues with AT&T to make the switch. What company can't send external communications? I've had Verizon reps send me e-mails, call me back, or even send official texts while on a call. AT&T is a garbage company and I pity any soul trying to get them to do anything other than bill you.
Sent from my XT1575 using Tapatalk

Sprint + 955FD not compatible, no wifi calling

Bought 955FD myself here in saudi.
Followed instructions to make "cumulative 5 minute call" with middle east/north africa sim: regional unlock.
1st issue: wifi calling available?
Searched settings for wifi calling. Initially something pops up, such as an option but it asked for ?phone number? I dont recall, was too excited about getting ready to pop in sprint sim from edge6.
During this search i was waiting for smart switch to execute bringing files from edge6.
When its all done i see nothing about wifi calling on 955FD.
2nd issue: activating 955FD to Sprint network.
Called Sprint, they asked for HEX gave them the IMEI number, then informed phone is not compatible.
They informed me i could go into sprint store and have them flash the device to place it on sprint's system. But that didnt sound confident. The phone is not compatible but can be flashed.
I was told once before by sprint international they have special sims to be used on foreign devices. But after failed activation informed me the international sim would not work either. I am never satisfied with first tier help/information from sprint.
I am open any advice. Last hope is to switch to TMobile which i read in another xda forum it will work. But i am concerned about the wifi calling mainly.
If you're rooted, then flash the CSC selector and select TMB. It will bring you wifi calling and Volte in TMOBILE, Not sure Exynos model will support Sprint CDMA..
I'm using it in Tmobile.. Mine is G955F
Sent from my SM-G955F using Tapatalk
Not rooted. Never tried that before. Trying to stay away from that effort.
Must it be rooted to be used on Tmobile?
2nd issue: activating 955FD to Sprint network.
Called Sprint, they asked for HEX gave them the IMEI number, then informed phone is not compatible.
Click to expand...
Click to collapse
As SBR said above, Exynos does not support CDMA. Sprint is CDMA. Your rep was correct.
rkennison said:
As SBR said above, Exynos does not support CDMA. Sprint is CDMA. Your rep was correct.
Click to expand...
Click to collapse
Thank you. Would them offering to flash the device be worth a try for experimental purpose?
No. The Exynos chip does not support CDMA. That is only in the Qualcom chip. The problem lies in your CPU, not software.
You have two different types of cellular networks, CDMA and GSM. Sprint and Verizon use CDMA while everyone else (in the world) uses GSM.
Kind of just an FYI, in which case your phone will work on T-Mobile, but not sure about the extra steps with WiFi calling (though, if it's on these forums, then you should be set there too).
Will update about wifi calling feature after I speak to Mobile in few weeks upon returning to stattes.
Thanks.
955FD on T-Mobile
After signing up with Tmobile i am 99% all good. Only problem is no wifi calling feature has appeared.
J_blaze114 said:
After signing up with Tmobile i am 99% all good. Only problem is no wifi calling feature has appeared.
Click to expand...
Click to collapse
WiFi calling on TMobile requires the TMobile firmware (which isn't available on the 955FD model, obviously).
Even unlocked US phones from Samsung can't use WiFi calling on TMobile unless they flash TMobile firmware.
You cannot flash the TMobile firmware on your device.
Skander1998 said:
WiFi calling on TMobile requires the TMobile firmware (which isn't available on the 955FD model, obviously).
Even unlocked US phones from Samsung can't use WiFi calling on TMobile unless they flash TMobile firmware.
You cannot flash the TMobile firmware on your device.
Click to expand...
Click to collapse
So my only option is to use DIGITS app by tmobile. Not bad but overall happy with my choice to buy this model...so far.

Anyone on Verizon?

With Verizon on current 2.42.617.1, we receive several LTE Bands, which is good in most places with strong Verizon signal. S-0ff until next reboot has been achieved and there is TWRP recovery, root choices, and several custom roms available which make the U11 experience better.
Note if you unlock your device: so far no updates will relock an unlocked device or deny you the ability to stay unlocked.
This is a well-made and for the most part, now problem-free phone. Most of the earlier Verizon connection issues have been resolved.
So far only the Sprint version is out in the wild in the USA. The "unlocked" verizon - ATT, Verizon, Tmobile - is not out yet. Why not just get that one?
Lock-N-Load said:
So far only the Sprint version is out in the wild in the USA. The "unlocked" verizon - ATT, Verizon, Tmobile - is not out yet. Why not just get that one?
Click to expand...
Click to collapse
Yes, ordered it in first hours of availability: coming this afternoon via FedEx.
Ordered the 'unlocked' one alright.
But in the past I bought the Unlocked HTC/Google PixelXL, and Verizon shortly sent out software that would eliminate
the possibility of unlocking the bootloader - different from carrier unlocked.
I just don't want future bootloader unlock to get prohibited by putting in the Verizon sim. Once burned, now cautious...
Oh, man, this had better not be the case.
I will be returning it if this happens.
At least my LG G3 is unlocked and works the way I want it to.
Got mine already, unlocked model with verizon sim. It's true that this phone does not seem to have cdma radios. So you MUST have advanced calling turned on in order for this phone to work with a verizon sim. So if you aren't blanketed in 4glte service and relied on cdma for phone calls you are SOL. This phone only supports VoLTE for calls. Just an fyi/disclaimer in case cdma is important for you.
QD2DC said:
Got mine already, unlocked model with verizon sim. It's true that this phone does not seem to have cdma radios. So you MUST have advanced calling turned on in order for this phone to work with a verizon sim. So if you aren't blanketed in 4glte service and relied on cdma for phone calls you are SOL. This phone only supports VoLTE for calls. Just an fyi/disclaimer in case cdma is important for you.
Click to expand...
Click to collapse
Did you just swap sim cards to activate it?
Sent from my HTC6545LVW using Tapatalk
ckupsco said:
Did you just swap sim cards to activate it?
Click to expand...
Click to collapse
Correct, just threw in my already activated sim.
QD2DC said:
Got mine already, unlocked model with verizon sim. It's true that this phone does not seem to have cdma radios. So you MUST have advanced calling turned on in order for this phone to work with a verizon sim. So if you aren't blanketed in 4glte service and relied on cdma for phone calls you are SOL. This phone only supports VoLTE for calls. Just an fyi/disclaimer in case cdma is important for you.
Click to expand...
Click to collapse
This is partially why I am waiting. So see how much others find this to be an issue & come here and talk about it. It seems to me it will be a BIG issue for me as I do find 3G and 1x at times when I travel remotely.
We have zero idea when VZW will be fully moving over and off the CDMA - it could be years and in the meantime, I feel like I need that ability personally.
Lock-N-Load said:
This is partially why I am waiting. So see how much others find this to be an issue & come here and talk about it. It seems to me it will be a BIG issue for me as I do find 3G and 1x at times when I travel remotely.
We have zero idea when VZW will be fully moving over and off the CDMA - it could be years and in the meantime, I feel like I need that ability personally.
Click to expand...
Click to collapse
Actually my Verizon business rep is being told that they need to phase out 3g phones over the next two years. They aren't even allowed to sell 3g only phones anymore, that's why advanced calling is on by default now on new devices. They expect to start re-purposing those 3g towers by 2020, maybe sooner, who knows.
I ordered the "Verizon" U11 (which is actually just the unlocked version). Just got it, opened the box and booted up, went through the HTCdev Unlocking process successfully. Popped in my VZW already activated SIM card and got the message: "Would you like to install settings and apps from your carrier? Existing settings will be replaced." Choices are to install now or later so I said later. Gave it time then rebooted and chose to install the Settings/Apps. Looks like it added some VZ Bloat and also modified some network/call settings, but nothing else.
@WorldOfJohnboy - Interesting. I got none of that when I put my Verizon SIM in my unlocked U11. It works making phone calls, texts, etc., but no WiFi Calling, no Visual Voicemail, no Caller ID, no HD Voice. Only VOLTE is offered. Didn't ask me to install settings or apps. Wonder if I should do a wipe and set up from scratch, because I'd actually like those things to work.
@WorldOfJohnboy can you use Titanium Backup or other method to freeze/remove VZW apps?
Did you have or do you now have Mobile Hotspot enabled?
QD2DC said:
Actually my Verizon business rep is being told that they need to phase out 3g phones over the next two years. They aren't even allowed to sell 3g only phones anymore, that's why advanced calling is on by default now on new devices. They expect to start re-purposing those 3g towers by 2020, maybe sooner, who knows.
Click to expand...
Click to collapse
Probably repurposing for 5G
Sent from my Pixel XL using Tapatalk
HD Voice confirmed for Verizon but no WiFi Calling! - Via a Level 2 VZW Tech Rep ?
BoulderGeek said:
@WorldOfJohnboy can you use Titanium Backup or other method to freeze/remove VZW apps?
Did you have or do you now have Mobile Hotspot enabled?
Click to expand...
Click to collapse
Yes I could, but I chose to uninstall what I didn't want. I have not messed with hotspot at all as I use my tablet for that.
---------- Post added at 12:29 AM ---------- Previous post was at 12:27 AM ----------
sangs said:
@WorldOfJohnboy - Interesting. I got none of that when I put my Verizon SIM in my unlocked U11. It works making phone calls, texts, etc., but no WiFi Calling, no Visual Voicemail, no Caller ID, no HD Voice. Only VOLTE is offered. Didn't ask me to install settings or apps. Wonder if I should do a wipe and set up from scratch, because I'd actually like those things to work.
Click to expand...
Click to collapse
Strange things are afoot the circle k...
I was actually shocked as well.
Can anyone on Verizon make a few screenshots?
1. Settings > More > Cellular networks
2. Settings > More > Cellular networks > Preferred network type
3. Phone (the dialer app) > Settings > Calls
4. *#*#4636#*#* > Phone information
These screenshots would clarify which features are available on Verizon.
user23785 said:
Can anyone on Verizon make a few screenshots?
1. Settings > More > Cellular networks
2. Settings > More > Cellular networks > Preferred network type
3. Phone (the dialer app) > Settings > Calls
4. *#*#4636#*#* > Phone information
These screenshots would clarify which features are available on Verizon.
Click to expand...
Click to collapse
These options did not work for me. The menus are different than your directions.
There's no CDMA. No GSM options. Only voice over LTE.
Option number four didn't work for me at all.
I only received my u11 last night. Calling is good in my LTE Zone. No Wi-Fi calling options available. This is after I allowed Verizon to install its apps and settings. I don't believe that there were any changes to the menu. I didn't see Wi-Fi calling at all.
The phone is absolutely beautiful but it is slippery and looks fragile as hell. Even in the included plastic clear case I question its resiliency.
However, this is the first Verizon phone I've had where mobile hotspot worked out of the box! Usually I have to unlock root and ROM for that.
Sent from my SM-T520 using XDA Free mobile app
BoulderGeek said:
These options did not work for me. The menus are different than your directions.
Click to expand...
Click to collapse
Okay, sorry, I just assumed it would be the same as the stock Android 7. It's strange that #4 doesn't work though.
Could you try to find screens similar to #1 and #2 in the settings menu? It should say something about cellular/network. #3 might not be there at all if HTC is using their own dialer app. I've attached examples how it should look.
user23785 said:
Okay, sorry, I just assumed it would be the same as the stock Android 7. It's strange that #4 doesn't work though.
Could you try to find screens similar to #1 and #2 in the settings menu? It should say something about cellular/network. #3 might not be there at all if HTC is using their own dialer app. I've attached examples how it should look.
Click to expand...
Click to collapse
Sorry, but screenshotting and uploading are too difficult for me at the moment.
None of those options exist for Verizon. LTE is the _only_ option for calling. No voice over WiFi, No CDMA.
There are some GSM-only options, but they don't come up in my phone. Selecting them goes to a forever-waiting "Reading settings..."
Apparently you can use SIP calling for Internet calls.
Hope this helps. I need to get on the unlock process and ROM installation before I decide whether I keep it.
user23785 said:
Can anyone on Verizon make a few screenshots?
1. Settings > More > Cellular networks
2. Settings > More > Cellular networks > Preferred network type
3. Phone (the dialer app) > Settings > Calls
4. *#*#4636#*#* > Phone information
These screenshots would clarify which features are available on Verizon.
Click to expand...
Click to collapse
Here you go! Shots from the *#*#4636#*#* and Phone Menus. BTW this phone is Working Perfectly with my Verizon wireless Sim card in Miami,Fl (Calls,Texts,MMS,GVoice Voicemails, Data, etc) :good:

Essential PH-1 on AT&T postpaid

If you are not on AT&T postpaid plans, then please refrain from posting. I had enough research that Sprint and T-Mobile are working fine with the phone with all the advanced connectivity options.
AT&T currently has a crappy insincere BYOD policy even though they said they welcome your device. Here's the link from AT&T website about the Essential PH-1.
https://www.att.com/plans/essential-phone.html
In reality, the Essential PH-1 on AT&T will be restricted to HSPA/UMTS for voice and LTE for data. Advanced connectivity options such as HD Voice, VoLTE and WiFi calling do not work on Essential PH-1. Looking around, the same frustrations do apply for others with unbranded phones from Google and OnePlus.
How does this differ from prepaid? I'm getting LTE+ and WiFi calling. Not getting Volte though. Would it say Volte up top of it's active during a call? I get HSPA during calls.
Sent from my PH-1 using Tapatalk
Airwolf79 said:
How does this differ from prepaid? I'm getting LTE+ and WiFi calling. Not getting Volte though. Would it say Volte up top of it's active during a call? I get HSPA during calls.
Click to expand...
Click to collapse
I don't think AT&T prepaid has any of the advanced connectivity options. How do you know WiFi calling is working for you? Having the option showed up in Settings->Wireless & Network does not imply it is working. Mine has the option, too, but placing or receiving calls still drop down to HSPA/UMTS. You can check what kind of network you used on placing/receiving calls by going into *#*#4636#*#* menu.
Mine stays on LTE during calls. You have to call them and give them your IMEI and let them provision it and then reboot your phone. Did it today, works great. Never tried prepaid, standard unlimited data family plan here.
SquireSCA said:
Mine stays on LTE during calls. You have to call them and give them your IMEI and let them provision it and then reboot your phone. Did it today, works great. Never tried prepaid, standard unlimited data family plan here.
Click to expand...
Click to collapse
I did.
When I got my Essential PH-1 from BestBuy, I even called up AT&T rep to get a new SIM card for the phone. I provided the phone make/model and IMEI to them, since my old SIM card from OnePlus X back in 2015 was not getting these advanced connectivity options. Essential tech support recommended that I obtained a new SIM card from AT&T. I am surprised that you were able to get this done over the phone with AT&T tech support without having a case opened and wait for another 9~11 business days.
My case is currently opened and expected to be resolved by 11/30/2017. I had threatened to move to T-Mobile if they did not escalate the resolution. Researching further, I have less hope that Essential PH-1 will be fully supported by AT&T BYOD in all the advanced connectivity options. And, I am not alone with such frustrations.
https://forums.androidcentral.com/google-pixel-2-pixel-2-xl/843382-psa-t-pixel-2-owners.html
https://forums.att.com/t5/Device-Features/Pixel-Pixel-2-VoLTE-Wifi-Calling-HD-Voice/td-p/5285018
https://forums.oneplus.net/threads/wifi-volte-calling-on-at-t.579611/
I am really after VoLTE, WiFi calling and HD Voice are nice to have. Essential PH-1 LTE HSPA/UMTS indoor reception seems to be poor compared to OnePlusX from where I live.
It all works fine here. Just had to provide the IMEI for them over the phone and reboot my PH-1 after. Getting all of these features on mine, no problem.
If you register the PH-1 IMEI to the SIM you will not get VoLTE on AT&T as it is not an AT&T carrier branded phone. AT&T reserves those features for their phones.
To get around that, register an IMEI from an AT&T carrier branded phone to the SIM. Then you will get VoLTE. Unfortunately WiFi calling does not work even though the option is available on the PH-1.
My SIM is registered with my old AT&T S8 IMEI. I'm still on LTE during a call and also get HD icon on the call screen for HD Voice call also.
Quick and easy test would be to take a friend's AT&T SIM and plug it in to verify VoLTE.
Sent from my PH-1 using Tapatalk
I never thought of that. Yeah, maybe the difference is that a lot of us had a SIM from a previous AT&T branded phone that we just tossed in here, so when we gave them our IMEI it all just worked.
If I had to ask them for a new SIM and told them it was for this phone, maybe it wouldn't?
SquireSCA said:
I never thought of that. Yeah, maybe the difference is that a lot of us had a SIM from a previous AT&T branded phone that we just tossed in here, so when we gave them our IMEI it all just worked.
If I had to ask them for a new SIM and told them it was for this phone, maybe it wouldn't?
Click to expand...
Click to collapse
Strange though. In my case I've never had an AT&T branded phone with this SIM and it all still works since getting them my IMEI. Every phone I've used has been bought outright from the given manufacturer.
Sent from my Essential PH-1 using Tapatalk
AT&T just closed my case with a disappointing response.
------ AT&T response ------
Regrettably, we do not support HD Voice/Wi-Fi Calling on non-AT&T Branded devices. As the device in use on the line is an unlocked non-AT&T branded device, we are unable to support those services on the device. We apologize for any inconvenience.
Thank you for choosing AT&T. We truly value and appreciate your business. If you have any further inquiries, please contact Customer Care at 1-800-331-0500 for assistance.
Justin H.
Billing Application Specialist
AT&T Customer Service
------ AT&T response ------
So for those of you who claimed VoLTE/Wi-Fi calling/HD Voice work on Essential PH-1, I would seriously doubt the validity of such claims. AT&T system is smart enough now to detect IMEI mismatch if you reuse existing SIM on AT&T branded phone. AT&T periodical system audits may disable such advanced connectivity options once it is flagged by the system.
kjliew said:
AT&T just closed my case with a disappointing response.
------ AT&T response ------
Regrettably, we do not support HD Voice/Wi-Fi Calling on non-AT&T Branded devices. As the device in use on the line is an unlocked non-AT&T branded device, we are unable to support those services on the device. We apologize for any inconvenience.
Thank you for choosing AT&T. We truly value and appreciate your business. If you have any further inquiries, please contact Customer Care at 1-800-331-0500 for assistance.
Justin H.
Billing Application Specialist
AT&T Customer Service
------ AT&T response ------
So for those of you who claimed VoLTE/Wi-Fi calling/HD Voice work on Essential PH-1, I would seriously doubt the validity of such claims. AT&T system is smart enough now to detect IMEI mismatch if you reuse existing SIM on AT&T branded phone. AT&T periodical system audits may disable such advanced connectivity options once it is flagged by the system.
Click to expand...
Click to collapse
Yes that's right, we're all lying. Dumbass.
Sent from my Essential PH-1 using Tapatalk
I know for a fact that I have HD voice. The dialer shows HD on some calls and doesn't on the others. When it doesn't, there is a sound quality difference.
The SIM that I'm using came from an AT&T branded HTC M8 which i l used on an M9 and then the 10... Now it's in the PH-1
Sent from my [device_name] using XDA-Developers Legacy app

AT&T vs Unlocked US version

Are there any differences (Hardware like LTE, 5G Band differences or software differences) between AT&T and US Unlocked versions?
Hardware should be no difference. Radio bands should be the same. Software is different. The unlocked comes without carrier bloatware.
That is correct. The software is the only difference. I had the Samsung Note 10+ unlocked on AT&T. I couldn't get WiFi call or HD voice. This time I went the Note 20 Ultra AT&T version. Not a big deal. I just remove the bloatware from the phone using ADB. You can find articles on how to do it.
Weird that I was told by VZW that I couldn't wifi call on the unlocked version. But I can.
I had the U1 version on ATT. Worked great. Some menus missing, such as ability to choose VOLTE butncall quality was great. Has to call ATT to change to a 5g plan for 5g.
By the unlocked version, are you referring to the SM-N986B/DS? I am researching as well and I am on the AT&T network.
Edit: my bad misread title.
I had a U1 N10+ and as someone else mentioned, no wifi calling or HD Voice (VOLTE). Even flashing the U firmware. ATT typically has to Whitelist your phone to unlock those features. Running the U would unlock Video Calling (useless unless the other person is also on ATT) and Advanced Messaging (also an ATT only service). The day I got my N20Ultra, I popped my ATT activated sim, and no VOLTE / HD voice, and no wifi calling. Being on U1, the rest of the features weren't available (video calling, advanced messaging, vvm) which isn't surprising since it's debranded.
In another thread, it showed that Factory Unlocked N20Ultra will have HD Voice hut NOT wifi calling. That's fairly new, so YMMV. Saw the post earlier this week. Not sure it's it's live already or in the works. Some phones had support for WiFi calling and HD Voice, but the N20 series were showing only HD Voice at time of article.
I've since dumped att for Metro (Tmobile) for a few reasons, but primarily their reluctance for fully support a factory unlocked device. They are making a step in the right direction, but honestly, VOLTE and WiFi Calling should be standard features supported. Like why wouldn't you want me to call on wifi instead of clogging the wireless towers? Both work OOTB with Tmobile.
Edit: If you have no plans to switch carriers, I'd get it through att. Even if you run U1 for now, you can change your mind later and know all the features will work on U. If you buy factory unlocked, and need WiFi calling, there's no guarantee it'll work even if you load U firmware. In the past, the device has to have the IMEI specifically whitelisted on their end.
todd3835 said:
I had a U1 N10+ and as someone else mentioned, no wifi calling or HD Voice (VOLTE). Even flashing the U firmware. ATT typically has to Whitelist your phone to unlock those features. Running the U would unlock Video Calling (useless unless the other person is also on ATT) and Advanced Messaging (also an ATT only service). The day I got my N20Ultra, I popped my ATT activated sim, and no VOLTE / HD voice, and no wifi calling. Being on U1, the rest of the features weren't available (video calling, advanced messaging, vvm) which isn't surprising since it's debranded.
In another thread, it showed that Factory Unlocked N20Ultra will have HD Voice hut NOT wifi calling. That's fairly new, so YMMV. Saw the post earlier this week. Not sure it's it's live already or in the works. Some phones had support for WiFi calling and HD Voice, but the N20 series were showing only HD Voice at time of article.
I've since dumped att for Metro (Tmobile) for a few reasons, but primarily their reluctance for fully support a factory unlocked device. They are making a step in the right direction, but honestly, VOLTE and WiFi Calling should be standard features supported. Like why wouldn't you want me to call on wifi instead of clogging the wireless towers? Both work OOTB with Tmobile.
Edit: If you have no plans to switch carriers, I'd get it through att. Even if you run U1 for now, you can change your mind later and know all the features will work on U. If you buy factory unlocked, and need WiFi calling, there's no guarantee it'll work even if you load U firmware. In the past, the device has to have the IMEI specifically whitelisted on their end.
Click to expand...
Click to collapse
I spoke to AT&T for hours and they whitelisted my international Note20 Ultra IMEI. I still don't have Wi-Fi calling and they absolutely don't know why... I regret switching from T-Mobile to AT&T... but unfortunately have to stay with AT&T for 2 more years because of iPhone deals we got...
Guys, all you have to do is flash the U Home CSC for and you'll have all the features on ATT and still have U1 firmware on your U1 device. At least for me on this phone and two previous, the Samsung devices were already "whitelisted" with ATT
Can a US CSC be flashed to another snapdragon model, namely 9860?
ekerbuddyeker said:
Can a US CSC be flashed to another snapdragon model, namely 9860?
Click to expand...
Click to collapse
My guess is no .... But not sure
So if I have a at&t version and flash the u1 firmware would I have wifi calling?
jjr3211 said:
So if I have a at&t version and flash the u1 firmware would I have wifi calling?
Click to expand...
Click to collapse
No. If you're on the AT&T version, stay there.
I can't believe AT&T would whitelist all Samsung Unlocked devices, that would really surprise me. You can buy AT&T locked Galaxy phone and unlock it with AT&T since you bought it outright, and then of course it would be whitelisted.
Still Less Features for Factory Unlocked Models?
Read through this thread and tried digging around in all other logical forums and it seems that it's still the case that one cannot get WiFi calling on AT&T with a Factory Unlocked model?
Asking because Amazon is selling the Note 20 Ultra 512GB Factory Unlocked today for $1,200.
Found a Reddit thread that has people stating there will be a Samsung update that addresses this.
Have seen various posts in various places about flashing file(s)/ROM to enable this.
Any authoritative answer as to whether WiFi Calling (and Voice Over LTE) can be enabled on AT&T with a Factory Unlocked Note 20 Ultra? Or authoritative assurance it will, soon?
haroldlundt said:
Read through this thread and tried digging around in all other logical forums and it seems that it's still the case that one cannot get WiFi calling on AT&T with a Factory Unlocked model?
Asking because Amazon is selling the Note 20 Ultra 512GB Factory Unlocked today for $1,200.
Found a Reddit thread that has people stating there will be a Samsung update that addresses this.
Have seen various posts in various places about flashing file(s)/ROM to enable this.
Any authoritative answer as to whether WiFi Calling (and Voice Over LTE) can be enabled on AT&T with a Factory Unlocked Note 20 Ultra? Or authoritative assurance it will, soon?
Click to expand...
Click to collapse
They cannot. Att and att based subsidized carriers. Do not allow byod on votle or wifi calling. I have a trick to make it work for a couple hours. So I know its possible. But after a few hours their systems reprovision your device and shut them back off.
TheMadScientist said:
They cannot. Att and att based subsidized carriers. Do not allow byod on votle or wifi calling. I have a trick to make it work for a couple hours. So I know its possible. But after a few hours their systems reprovision your device and shut them back off.
Click to expand...
Click to collapse
Too bad. Thanks for the reply. Feel better about passing up the sale especially since it will probably be a common sale price during Xmas sales.
And WiFi Calling is too important a feature to trade for a discount of a hundred or even two.
haroldlundt said:
Too bad. Thanks for the reply. Feel better about passing up the sale especially since it will probably be a common sale price during Xmas sales.
And WiFi Calling is too important a feature to trade for a discount of a hundred or even two.
Click to expand...
Click to collapse
Yea. If you provision volte and wifi on a actual att phone and sim swap they work for a while. Usually around 4 or 5 am. Then it shuts off and never works again. Till sim swap and reprovision
VoLTE on unlocked Samsung S20 and Note20 series phones is set to "on" by default, but unchangeable (greyed out). As of right now, there is no ability to select WiFi calling until Samsung decides to grace those of us with unlocked phones that ability.
haroldlundt said:
Read through this thread and tried digging around in all other logical forums and it seems that it's still the case that one cannot get WiFi calling on AT&T with a Factory Unlocked model?
Asking because Amazon is selling the Note 20 Ultra 512GB Factory Unlocked today for $1,200.
Found a Reddit thread that has people stating there will be a Samsung update that addresses this.
Have seen various posts in various places about flashing file(s)/ROM to enable this.
Any authoritative answer as to whether WiFi Calling (and Voice Over LTE) can be enabled on AT&T with a Factory Unlocked Note 20 Ultra? Or authoritative assurance it will, soon?
Click to expand...
Click to collapse
There is a long term method but it involves calling att, and getting your IMEI registered so you can get VOLTE and wifi calling. Ask customer service. I can't remember the name of the department you need to request. It takes a couple of weeks and then you suddenly get a weird sms (something like IMEI provisioned) and then it works. Did it on note 9.

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