Will flashing my unlocked T-Mobile S9 to ATT firmware allow me to use VoLTE? - Samsung Galaxy S9 Questions & Answers

And WIFI calling?
I had read in a few places this might work. I'm also not able to sync my Galaxy watch to send texts and make calls through my phone's phone number with numbersync. I'm hoping flashing the actual ATT software might fix these problems.
Any thoughts?

iphoneislame said:
And WIFI calling?
I had read in a few places this might work. I'm also not able to sync my Galaxy watch to send texts and make calls through my phone's phone number with numbersync. I'm hoping flashing the actual ATT software might fix these problems.
Any thoughts?
Click to expand...
Click to collapse
well, the worst thing that could happen is that it doesnt work and youd need to flash your other firmware back on the device

I flashed my unlocked cricket S9 to Verizon firmware, because I was on the U1 firmware and needed cricket wifi calling back (and cricket/att firmware downloads are mia) and when I did I got absolutely nothing of Verizon and the phone was recognized as a cricket phone. So in short basically all 0U firmware is the same the same as all 0U1 is the same. It's kind of confusing but basically on 0U your sim/carrier (even if you don't have it in at setup, it remembers the last one you used) determines your 0U for you, so I don't think what you're asking will work.

iphoneislame said:
And WIFI calling?
I had read in a few places this might work. I'm also not able to sync my Galaxy watch to send texts and make calls through my phone's phone number with numbersync. I'm hoping flashing the actual ATT software might fix these problems.
Any thoughts?
Click to expand...
Click to collapse
I have heard from some people that latest(august or so) update on unlocked S10+ that is on ATT network, allows VoLTE to work

Related

Verizon Advanced/HD Calling on Unlocked S9+

I currently have an Unlocked Galaxy S9+ directly from Samsung running on Verizon's network.
I can't seem to find a way to enable the HD Calling/Video Calling/Advanced Calling features.
Some rumors suspected if you installed the MyVerizon app it would enable the advanced calling menu, but that didn't work.
Is there any way to enable these features?
Is there a command through ADB to enable this?
Would I need root access?
EDIT: Model Number: SM-G965U1 - Snapdragon
No way to get Video and WiFi calling to work (yet), but go to Connections, then Mobile Networks and you can turn VoLTE Calls on or off, which is HD voice. It was there by default on my unlocked S9+ on Verizon. If you don't see it, you may need to add HD calling to your Verizon plan (it's free, but you have to login to the website and add it as a feature).
iamrobk said:
No way to get Video and WiFi calling to work (yet), but go to Connections, then Mobile Networks and you can turn VoLTE Calls on or off, which is HD voice. It was there by default on my unlocked S9+ on Verizon. If you don't see it, you may need to add HD calling to your Verizon plan (it's free, but you have to login to the website and add it as a feature).
Click to expand...
Click to collapse
Ahh, I already have VoLTE enabled. Guess I will have to wait until someone finds a way to enable those other features.
Thanks for the info!
Whatsapp and Duo appear to support video calling over WiFi
Airstream25 said:
Whatsapp and Duo appear to support video calling over WiFi
Click to expand...
Click to collapse
Yeah, I know that they support video calling, along with a ton of other apps, but there is a native video calling option.
They got it working on unlocked S8, using some of the APKs and CSC from the Verizon phone. See below:
https://forum.xda-developers.com/ve...to/how-to-video-wificalling-unlocked-t3615027
Or just by flashing the whole Verizon firmware on the unlocked phone (kinda defeats the purpose of getting the unlocked phone):
https://forum.xda-developers.com/ve...axy-s8-unlocked-version-wifi-calling-t3699806
So I'm hoping it's just a matter of time, as I also need the WIFI calling to work on my unlocked phone. I think that's what is needed in order to send texts over WIFI via the Verizon Message+ app, which is what I ultimately need when in poor signal areas (sending texts over WIFI, without getting a second number with Google Voice or asking people to install secondary apps like Allo/Duo). Or I could just switch to T-mobile I guess, where all these things work with the unlocked phone without the additional hassle.
Here is to hoping we can get wifi calling and native video calling working on the unlocked s9/s9+ phones for those of us on verizon.
I have the S9+ (G965U1), and I have used the included Wi-Fi Calling app.
Look for Wi-Fi Calling.
Dudeman456 said:
I have the S9+ (G965U1), and I have used the included Wi-Fi Calling app.
Look for Wi-Fi Calling.
Click to expand...
Click to collapse
I just got my unlocked S9 what do I need to do to get everything working on VZW I mean HD Calling, and video calling etc.? I've never owned Samsung Phones, I've always had unlocked bootloader HTC phones that I could do anything I wanted with. I don't know anything about Samsung accept "Odin". I still havn't put the sim card in cause I was thinking of returning the phone.
Thanks for the hint Dudeman456! I found WiFi Calling under system apps and went to its settings and activated its permissions. Now I can send text messages over WiFi using Verizon Message+ app (and not the included Messages app or Android Messages). I still don't have WiFi calling through the default phone app on S9. I wonder if there is a different phone app that I need for that purpose (Verizon Phone app?).
Same issue as my unlocked Note 8 I got from Sammy. You can enable video calling in the *#*#4636*#*# menu. You will not be able to activate WiFi calling though unless you flash the Verizon firmware. You also will not be able to use any Verizon features such as watching NFL games (but I think that is changing and won't be a Verizon exclusive) and premium visual voicemail. Really is a deal breaker for me.
Sent from my SM-G965U1 using Tapatalk
skinnytoo2 said:
Same issue as my unlocked Note 8 I got from Sammy. You can enable video calling in the *#*#4636*#*# menu. You will not be able to activate WiFi calling though unless you flash the Verizon firmware. You also will not be able to use any Verizon features such as watching NFL games (but I think that is changing and won't be a Verizon exclusive) and premium visual voicemail. Really is a deal breaker for me.
Sent from my SM-G965U1 using Tapatalk
Click to expand...
Click to collapse
What in the world does this mean "*#*#4636*#*# menu"????
All,
This is a KNOWN issue with Verizon.
I got my S9+ on Wed 3/14 from pre-order and could not get video calling to work. Went to Verizon store on Sat 3/17 preparing to wage war with them. The Verizon tech stopped me in my tracks and said it's already known. An email sent from corporate to all verizon stores indicating the problem with video calling. It is an issue with Samsung software which they are "diligently" working to correct and will push an update soon.
Notice this.. go to either MyVerizon app or the website and login. then go to devices/manage devices...then go controls then to adjust service blocks and you will see the video calling is blocked and cannot be unblocked. Apparently this is done for "our own good" until Samsung fixes the issue.
No date from the tech on when a fix will be issued.
DONT try anything crazy to enable video calling..just be patient and wait for the fix. My S9+ is unlocked too and i was assured that video calling will be enabled once a fix is issued.
ajal said:
Thanks for the hint Dudeman456! I found WiFi Calling under system apps and went to its settings and activated its permissions. Now I can send text messages over WiFi using Verizon Message+ app (and not the included Messages app or Android Messages). I still don't have WiFi calling through the default phone app on S9. I wonder if there is a different phone app that I need for that purpose (Verizon Phone app?).
Click to expand...
Click to collapse
That is odd. I am using my G965U1 on Sprint and my Wi-Fi Calling app is in the regular app drawer with everything else. I did not expect it to work, since it is Sprint, but it did. The Wi-Fi Calling app was available before placing a sim card inside.
Gnex81 said:
All,
This is a KNOWN issue with Verizon.
I got my S9+ on Wed 3/14 from pre-order and could not get video calling to work. Went to Verizon store on Sat 3/17 preparing to wage war with them. The Verizon tech stopped me in my tracks and said it's already known. An email sent from corporate to all verizon stores indicating the problem with video calling. It is an issue with Samsung software which they are "diligently" working to correct and will push an update soon.
Notice this.. go to either MyVerizon app or the website and login. then go to devices/manage devices...then go controls then to adjust service blocks and you will see the video calling is blocked and cannot be unblocked. Apparently this is done for "our own good" until Samsung fixes the issue.
No date from the tech on when a fix will be issued.
DONT try anything crazy to enable video calling..just be patient and wait for the fix. My S9+ is unlocked too and i was assured that video calling will be enabled once a fix is issued.
Click to expand...
Click to collapse
I don't think it will unblock. If you didn't buy the VZW branded phone you most likely won't get video calling. I assumed this from the start. I spent a good portion of the day speaking with a VZW 2nd level support engineer supervisor with 20 years experience. He asked is there anything else that could be done besides unblocking video calls to make me happy, because that at this time it is impossible as the phone is not a VZW phone. Look in you phone profile on their website, does a picture of your phone show up? My profile is blank, that means the phone is not in their system of phones, even though I flashed the full VZW package with bloatware and all after first a full reset. My Phone has VZW splash screen and all the advanced calling menus, in about phone it says SM-G960U, but that block cant be removed. Maybe I screwed up somewhere and alerted them by booting with a sim card in? Maybe they flagged my IMEI? I don't know but the rep said point blank they can't unblock video calling on that line, and unlocked phones are not supported.
Are you all seeing LTE+ (carrier aggregation) on your Verizon S9 devices? I'm in Vegas and my device appears to sit on B13 (700mhz) and does not hand off anywhere else.
DevalB said:
Are you all seeing LTE+ (carrier aggregation) on your Verizon S9 devices? I'm in Vegas and my device appears to sit on B13 (700mhz) and does not hand off anywhere else.
Click to expand...
Click to collapse
My S9 does not show LTE or 4G. I think there are a lot of bugs still.
skopper said:
My S9 does not show LTE or 4G. I think there are a lot of bugs still.
Click to expand...
Click to collapse
That's a whole other issue then. Is your device an unlocked device?
DevalB said:
That's a whole other issue then. Is your device an unlocked device?
Click to expand...
Click to collapse
Yes - unlocked on Verizon.
You need the right apps for Wi-Fi calling and some in framework. I don't own a s9 but that's what you need to do to get it to work. Along with some csc edits

Enabling Cricket Wifi calling on 960u1

Hi,
I am trying to get the wifi calling option to appear and work on my 960U1. Here is what I've done so far.
1. Utilized Odin 3.12.3 (not patched version that I've seen on some forum posts) to flash AIO firmware G960U1UEU1ARBG (which i'm pretty sure is the only cricket CSC from updato.com, Sammobile has nothing listed for AIO )
2. During flash I made sure to select the CSC (not HOME CSC)
3. The flash looks like it was successful and the phone was automatically factory reset.
3. I am still missing the wifi calling option (i checked both settings-> connection menus, and the Dialer. I also tried making a call in airplane mode with wifi and it said i needed to turn on cellular.
Does anyone have any ideas what I need to do? Only thing I can think of is I'm missing a firmware or I need to change how I'm flashing the phone.
Here is a link to the cricket website saying wifi calling is supported on the S9 https://www.cricketwireless.com/sup.../wifi-calling/customer/compatible-phones.html
Thank you
Update:
So I was realized what I was missing was the AIO (Cricket) User Data. Once I located that and flashed it along with the Firmware using Odin I know have the Wifi-Calling button added to my phone. Now when I attempt to turn it on wifi-calling I get the "Please try again later" message.
I contacted Cricket Wireless Chat support, told them I have a S9 with cricket Firmware and they asked me to provide the IMEI, when I provided the IMEI they stated that it was for an unbranded S9 and that I would be unable to get wifi-calling to work on their network because of that.
Does anyone have any ideas on how I could get them to authorize my phone to get access?
It is not going to work no matter what. You have to be using an iPhone or their Cricket Branded Android phones.... -_-
Orthok said:
Update:
So I was realized what I was missing was the AIO (Cricket) User Data. Once I located that and flashed it along with the Firmware using Odin I know have the Wifi-Calling button added to my phone. Now when I attempt to turn it on wifi-calling I get the "Please try again later" message.
I contacted Cricket Wireless Chat support, told them I have a S9 with cricket Firmware and they asked me to provide the IMEI, when I provided the IMEI they stated that it was for an unbranded S9 and that I would be unable to get wifi-calling to work on their network because of that.
Does anyone have any ideas on how I could get them to authorize my phone to get access?
Click to expand...
Click to collapse
Even if Crickett wanted to, their agreement with AT&T would probably prevent it. Even AT&T requires an iPhone or one of their branded phones for wifi calling. You can give up this fight.
Orthok said:
Update:
So I was realized what I was missing was the AIO (Cricket) User Data. Once I located that and flashed it along with the Firmware using Odin I know have the Wifi-Calling button added to my phone. Now when I attempt to turn it on wifi-calling I get the "Please try again later" message.
I contacted Cricket Wireless Chat support, told them I have a S9 with cricket Firmware and they asked me to provide the IMEI, when I provided the IMEI they stated that it was for an unbranded S9 and that I would be unable to get wifi-calling to work on their network because of that.
Does anyone have any ideas on how I could get them to authorize my phone to get access?
Click to expand...
Click to collapse
If you had another Cricket branded Android that is wifi calling capable you could have them hard set that IMEI in the system, and that should get your S9 working.
ajairola said:
If you had another Cricket branded Android that is wifi calling capable you could have them hard set that IMEI in the system, and that should get your S9 working.
Click to expand...
Click to collapse
Thank you,
I've considered this option, but now I'm weighing another consideration. It looks like mobile hotspot is disabled on the cricket firmware with user data. So unless I pay for the service maybe i should stay on a generic firmware so that it will give me mobile hotspot vs wifi calling...
\Again, FYI and maybee everyone already knows this.
The idea behind the "unlocked" handset and Android was that each carrier would have its own app to use for these handsets to enable these IMS features. As usual, the wireless US carriers have perverted the concept to tell then end user to f*ck off because you did not pay a premium for the carrier branded/bloated handset.
Man....MINT SIM is looking good.
Just FYI, Wi-Fi Calling will work fine on U1 flashed to Cricket's firmware. You just need to provision your SIM card for Wi-Fi Calling, to do that you need to insert your SIM into iPhone (SE or 6/7/8/x) and activate Wi-Fi Calling on that phone and test it out, once you see it active - remove SIM card and put it back to your S9. After you put the SIM back into your S9 - do a network settings reset, after that the Wi-Fi Calling should work. This is how I made my S9 work. If you don't have anyone to borrow iPhone from - go to your local Apple store, buy one then return it next day
Orthok said:
Update:
So I was realized what I was missing was the AIO (Cricket) User Data. Once I located that and flashed it along with the Firmware using Odin I know have the Wifi-Calling button added to my phone..
Click to expand...
Click to collapse
Where did you find the User Data file? I've been looking high and low and just can't find any. Thanks
Also would like to know where you got the UserData.
AlexusJ said:
Just FYI, Wi-Fi Calling will work fine on U1 flashed to Cricket's firmware. You just need to provision your SIM card for Wi-Fi Calling, to do that you need to insert your SIM into iPhone (SE or 6/7/8/x) and activate Wi-Fi Calling on that phone and test it out, once you see it active - remove SIM card and put it back to your S9. After you put the SIM back into your S9 - do a network settings reset, after that the Wi-Fi Calling should work. This is how I made my S9 work. If you don't have anyone to borrow iPhone from - go to your local Apple store, buy one then return it next day
Click to expand...
Click to collapse
I've been attempting to get this working on my ATT (carrier unlocked) S10+, but since Cricket only supports the S10 (not +) I'm unable to find an appropriate userdata. Do I have any options?
Wifi calling will work on non cricket device under one condition. You activate wifi calling on a cricket device. With your sim in it. Then put the sim in your phone. I also flash any multi csc firmware. And place cricket sim in the device so it auto personalizes. so then you have cricket firmware so to speak. I'm using a g950u xfinity right now on cricket with bit 7 even though cricket has only bit 6 out. And he calling and wifi calling work great
---------- Post added at 01:51 PM ---------- Previous post was at 01:50 PM ----------
jdawgg21 said:
It is not going to work no matter what. You have to be using an iPhone or their Cricket Branded Android phones.... -_-
Click to expand...
Click to collapse
This is not true

Verizon S9 to A&T. Can I flash it??

Hi all, I switched providers today from Verizon to AT&T and my S9 is working fine with voice, data and TXT however voice mails is messed up, I had to get AT&T Visual Voice Mail from APK mirror because my voice mail wasn't working and still not dialing from the dial pad when I press and hold 1 as in the AT&T native phones.
Anyways I would like to use WiFi calls and other native AT&T features, so is it possible to flash AT&T firmware on my Verizon S9 via Odin or so???
Can anyone please direct me to the process/firmware? I am also concerned about the firmware updates that I might not get from AT&T if my S9 remains on VZW firmware.
Thank you in advance!!
Flash this OTA https://firmware.science/download?url=52758/1488/SS-G960USQU3ARG7-to-U3BRH6-UP and you'll have the BYOD update. Another thing, wifi calling on AT&T will not work at all because your IMEI is not part of the whitelist in their system to use it. I think the same goes for VoLTE but I'm not sure.
FatalONEM8 said:
Flash this OTA https://firmware.science/download?url=52758/1488/SS-G960USQU3ARG7-to-U3BRH6-UP and you'll have the BYOD update. Another thing, wifi calling on AT&T will not work at all because your IMEI is not part of the whitelist in their system to use it. I think the same goes for VoLTE but I'm not sure.
Click to expand...
Click to collapse
Thank you for the feedback FatalONEM8.
After I manually flash, do you know if the next OTAs will come automatically or I will have to manually flash them forever?
Not having access to WiFi calling is a bummer but well, if everything else works I will have to leave with
By the way my current firmware is G960USQS3ARG8, I checked and the upgrades available are G960USQU3BRH6 and G960USQS3ARH7. The later seems to be an add on by the size of it, should I apply both?
Thanks again!!

Now data after returning to stock

Ok so I had to reactivate my Z2 Force Sprint., and after set up I do not have any data. It show 3G then LTE then nothing.. I tried flash all twice, but still can't get full data.. I was on Lineage, but went back to stock as I was going to sell this phone.. but now I'm not sure how to proceed. Any ideas will help thanks.
doubledragon5 said:
Ok so I had to reactivate my Z2 Force Sprint., and after set up I do not have any data. It show 3G then LTE then nothing.. I tried flash all twice, but still can't get full data.. I was on Lineage, but went back to stock as I was going to sell this phone.. but now I'm not sure how to proceed. Any ideas will help thanks.
Click to expand...
Click to collapse
I'm in the same situation, update from nougat to Oreo and I ran out of mobile network, if I find any solution, I'll let you know.
Sprint is suppose to be sending me another phone. Will see, so I went and relocked the bootloader.. At this time I don't care if it is stock or not.
doubledragon5 said:
Sprint is suppose to be sending me another phone. Will see, so I went and relocked the bootloader.. At this time I don't care if it is stock or not.
Click to expand...
Click to collapse
Hope u have...
Luck I can't do that because I'm not from US
svenrod09 said:
Hope u have...
Luck I can't do that because I'm not from US
Click to expand...
Click to collapse
I went to Motorola to get the factory images for this phone, can't seem to find any.. funny with bootloader locked, I get a message, that a different software other than factory installed on phone.. How, when I flashed the flashall that is suppose to be 100 percent stock.
Found out what appears to be the issue.. Up at Sprint, my ICCID (sim) Doesn't match what's in the phone.. Why I do not know.. I gave them two other sim cards, and they claim they are not compatible but, one is the original one from the phone.. So tomorrow I have to go to Sprint and get another.. To add insult to injury, the Galaxy S6 I purchased, and billed as new.. In fact is not new, was a refurbished unit.. Ok, but the mic does not work.. Went to Sprint to get it replaced $75, but because it has a after market screen and not original, they won't touch it.. Again, no mentioned at time of purchase.. Luckily for me I'm getting my money back on it.. Talk about a bad day, and a couple of effed up phones..
Did Lineage OS work?
doubledragon5 said:
Ok so I had to reactivate my Z2 Force Sprint., and after set up I do not have any data. It show 3G then LTE then nothing.. I tried flash all twice, but still can't get full data.. I was on Lineage, but went back to stock as I was going to sell this phone.. but now I'm not sure how to proceed. Any ideas will help thanks.
Click to expand...
Click to collapse
Doubledragon5,
Did having your phone on Lineage OS allow you to use data/calling/network service?
JTC Intl said:
Doubledragon5,
Did having your phone on Lineage OS allow you to use data/calling/network service?
Click to expand...
Click to collapse
I got the same question...
JTC Intl said:
Doubledragon5,
Did having your phone on Lineage OS allow you to use data/calling/network service?
Click to expand...
Click to collapse
If your on Sprint and talk and surf at the same time. Then No
doubledragon5 said:
If your on Sprint and talk and surf at the same time. Then No
Click to expand...
Click to collapse
Sorry, I need to clarify. Alot of Moto Z2 Force users have issues using their "unlocked" phones on compatible carriers. For instance, I have an unlocked Sprint Version of the phone, yet cannot use it on the Verizon network (even though both phones have compatible hardware). So there must be a glitch or Carrier lock in the phone's "Software Channel" preventing people from using their device on other networks (aka: have their phone unlocked).
Did using Lineage OS allow you to use your phone with whatever carrier (SIM change) without any modification besides the OS?
Please let me know if I need to clarify any further. Thank you!
Get Verizon Network to work on your Sprint Moto Z2 Force!
Follow these steps!
https://forum.xda-developers.com/z2-force/how-to/free-sprint-moto-z2-force-carrier-t3843824
JTC Intl said:
Sorry, I need to clarify. Alot of Moto Z2 Force users have issues using their "unlocked" phones on compatible carriers. For instance, I have an unlocked Sprint Version of the phone, yet cannot use it on the Verizon network (even though both phones have compatible hardware). So there must be a glitch or Carrier lock in the phone's "Software Channel" preventing people from using their device on other networks (aka: have their phone unlocked).
Did using Lineage OS allow you to use your phone with whatever carrier (SIM change) without any modification besides the OS?
Please let me know if I need to clarify any further. Thank you!
Click to expand...
Click to collapse
Sorry. I did not use my phone on any other carrier.. But I believe this phone you can use on T-Mobile, Cricket or even AT&T.. Providing it is also GSM compatible.. A buddy of mine recently left Sprint, and has a Iphone 7 and he went to Cricket.. Best move he every made.. And not that the GSM is unlocked he can talk, and do internet without issues. I hope this helps. I also now have a LG G7 ThinQ as I was having issues with LTE and Call issues, and Sprint sent me that, and I sent then back my Moto Z2 Force.
JTC Intl said:
Sorry, I need to clarify. Alot of Moto Z2 Force users have issues using their "unlocked" phones on compatible carriers. For instance, I have an unlocked Sprint Version of the phone, yet cannot use it on the Verizon network (even though both phones have compatible hardware). So there must be a glitch or Carrier lock in the phone's "Software Channel" preventing people from using their device on other networks (aka: have their phone unlocked).
Did using Lineage OS allow you to use your phone with whatever carrier (SIM change) without any modification besides the OS?
Please let me know if I need to clarify any further. Thank you!
Click to expand...
Click to collapse
Verizon is the only carrier you can't use. Verizon is a CDMA carrier. They must have your IMEI in their database to get calls, sms, MMS, etc. AT&T works, T-Mobile works... They are GSM so as long as the phone can connect to the towers, they don't care really.
Uzephi said:
Verizon is the only carrier you can't use. Verizon is a CDMA carrier. They must have your IMEI in their database to get calls, sms, MMS, etc. AT&T works, T-Mobile works... They are GSM so as long as the phone can connect to the towers, they don't care really.
Click to expand...
Click to collapse
Verizon is ALSO GSM and 4G LTE...and switching over to 5G. Strange thing is, when we initially got the Sprint phone and put in the Verizon SIM card, the phone actually recognized the Verizon SIM and all data, network, and calling WERE working, without having any dialog with Verizon (ALSO: without the phone's IMEI number on Verizon's database). It wasn't until the phone was updated to a more current Oreo Operating System that the SIM card wasn't recognized. Leading me to understand/believe that THERE DOES EXIST a ROM that allows a Sprint Moto Z2 Force to work on the Verizon network...just a matter of finding which one.
Also, when we installed Lineage OS onto the Sprint Moto Z2 Force, the Network options actually ALLOWED us to put in Access Point Name (APN) fields, but prevented us from saving them, saying user access denied (Rooting the phone may allow access to these settings?).
Also, once Lineage OS was installed, the Network could be taken off from, "Actively Connect" to a network and re-directed to a Carrier specific Network...Verizon being one of them, yet when doing so, we received an error message, "SIM card prevented linkage"....This we are assuming IS an issue with the IMEI (???), yet the IMEI # is different than the SIM #.
We currently are trying to work with Verizon Wireless to alter their, "Bring Your Own Device" settings to see if they WILL ALLOW a compatible hardware phone to be added to their platform by adding the IMEI to their database...
Still trouble shooting and fingers still crossed...
UPDATE:
Verizon working on Sprint Version Moto Z2 Force via Oreo OCXS27.109-48-3 (NOT listed in Motorola mirrors lolinet firmware page). We suggest doing an install of an older version of Oreo (i.e., OCX27.109-48 from 3/2018), then a "Motorola System Update" will pop-up suggesting you to update to version Oreo OCXS27.109-48-3...once install has completed, pop in your Verizon SIM card and voila! Network connection, data service, hotspot, & voice calling all working!
Now the key is to NOT do any future updates and disable the app "System Update" and force stop "Motorola Update Services" (if rooted, disable it!).
We're still working on what Sprint Applications can/need to get disabled, as notifications for "Mobile ID and "Mobile Installer" are still on the pull down notification screen. (Rooting most likely required for these).

Samsung S9 Wifi Calling ROM Question

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

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