Wifi Calling on Unlocked Samsung s20+ 5G - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

I recently bought the new unlocked Samsung s20+ 5G BTS phone from the Samsung website. I currently have AT&T and because I live in a rural area the wifi calling and texting are a must. I have tried contacting AT&T and also Samsung to help get the wifi calling on my s20 but no dice. I am also currently new to this and in desperate need of help as I love the s20+. I don't want to have to use my note 9 because I spent money on my s20+.

Try *#*#4636#*#*
Phone info
Enable wifi calling

farookh said:
Try *#*#4636#*#*
Phone info
Enable wifi calling
Click to expand...
Click to collapse
Thank you, I am going to try this now. I really appreciate it.

farookh said:
Try *#*#4636#*#*
Phone info
Enable wifi calling
Click to expand...
Click to collapse
Unfortunately the slider to enable VoWIFI is greyed out.
I'm hardly the expert, but seems the the only option to get VoWIFI on the unlocked firmware is to...switch to T-Mobile. It's not just a matter of getting your IMEI registered either. I have an AT&T branded S20+ which I flashed to the unlocked firmware and still no VoWiFi for me. It was there on the AT&T firmware.

If it's a must, maybe flash the CSC or full firmware for AT&T using patched ODIN.

If you can wait a bit, I can confirm that WiFi calling can be enabled on the unlocked S20+ on AT&T on OneUI 3.0/Android 11. It was a pleasant surprise.

I can confirm that WiFi calling DOES work on OneUI 3.0/Android 11 for AT&T. Take that AT&T!!
I will warn you if you attempt this that it was a real PITA to flash back to BTIF to make this happen. My phone just didn't want to take the flash. I had to try several different versions of ODIN before it finally took.
The only thing left that doesn't work is video calling. I don't care about that though as the rest of my family is all Apple addicts so I have to use Duo any way.

Flash U1 firmware and then flash your carrier CSC. I'm running W Rogers CSC on U1 firmware and I have 5G, spam reporting, wifi calling and volte

ChongoDroid said:
Flash U1 firmware and then flash your carrier CSC. I'm running W Rogers CSC on U1 firmware and I have 5G, spam reporting, wifi calling and volte
Click to expand...
Click to collapse
Thank you so much, is there a tutorial or guide to help me do that. I'm still new to this. lol I really appreciate your help. Thank you.

Malnilion said:
If you can wait a bit, I can confirm that WiFi calling can be enabled on the unlocked S20+ on AT&T on OneUI 3.0/Android 11. It was a pleasant surprise.
Click to expand...
Click to collapse
Oh really? I suppose I can wait a bit, do you have a rough time estimate for this to happen?

koley15 said:
Oh really? I suppose I can wait a bit, do you have a rough time estimate for this to happen?
Click to expand...
Click to collapse
Whenever Samsung releases the first public version of Android 11. At the rate they're going in the beta, I'd be shocked if it is not released by the end of the year. My guess would be by early December. You can hop into the beta, but it's not exactly for the faint of heart if you missed your chance to enroll in their official program. If you're not comfortable flashing phones and/or don't want to wipe your data and start over, I'd wait.

koley15 said:
Thank you so much, is there a tutorial or guide to help me do that. I'm still new to this. lol I really appreciate your help. Thank you.
Click to expand...
Click to collapse
Basically when you flash firmware in Odin just plug in the Canadian firmwares csc and flash it along with.
Might not work with all firmwares but I've mixed u1/u/w firmwares.
---------- Post added at 08:44 AM ---------- Previous post was at 08:43 AM ----------
Wifi calling is working on Rogers on the 3.0 update Android 11

**Update**
So flashed the OneUI 3.0/Android 11, and sure enough the wifi calling and text is working like a dream. lol

ChongoDroid said:
Flash U1 firmware and then flash your carrier CSC. I'm running W Rogers CSC on U1 firmware and I have 5G, spam reporting, wifi calling and volte
Click to expand...
Click to collapse
ChongoDroid said:
Basically when you flash firmware in Odin just plug in the Canadian firmwares csc and flash it along with.
Might not work with all firmwares but I've mixed u1/u/w firmwares.
---------- Post added at 08:44 AM ---------- Previous post was at 08:43 AM ----------
Wifi calling is working on Rogers on the 3.0 update Android 11
Click to expand...
Click to collapse
+1 10 months out from a fellow Rogers customer.
I flashed the U1 FW out of box a year ago as I just didn't want any Rogers bloat. 5G was starting out at the time and I never noticed since LTE/LTE+ was sufficient for my usage. It was only when I upgrade my sister's iPhone that I noticed we had 5G in the area.
It's showing as RWC/RWC/XAC/RWC now though. And sw update is showing registration failed
Edit: Reflashed the U1 Home CSC looks to have resolved it. Got 5G and Rogers features and back to XAA/XAA/XAC

Related

What is the difference between the XAS, and SPR versions of the firmware?

Hi
every time i search for a stock rom i find XAS and SPR versions , what is the difference between them ?
i read a comment that the XAS version is kinda for developers builds, is that correct ?
Mohannad_Almasharqa said:
Hi
every time i search for a stock rom i find XAS and SPR versions , what is the difference between them ?
i read a comment that the XAS version is kinda for developers builds, is that correct ?
Click to expand...
Click to collapse
I don't have enough information about the difference but my device was on SPR and now it changed to XAS.
No thing is different except that Yellow sprint logo changed to Samsung logo and some csc features changed.
My device still working.
I think maybe if any subscriber of sprint network could notice a little more changes.
Since I am not a Sprint subscriber so I don't notice any difference.
Mohannad_Almasharqa said:
Hi
every time i search for a stock rom i find XAS and SPR versions , what is the difference between them ?
i read a comment that the XAS version is kinda for developers builds, is that correct ?
Click to expand...
Click to collapse
They are they same except for csc settings.
SPR will give you sprint branding and csc.
XAS will give you regular samsung branding.
If your using your phone global or gsm like me, I prefer XAS.
I notice most apps that unlock your sim will make it XAS to. So I believe xas sets csc to work better unlocked but don't quote me.
Did it remove that annoying hands free activation???
Which should world or GSM user choose;Sprint or XAF Samsung Note 4 firmware versions?
Hi, am a world/ GSM Note for user. My firmware keeps requesting for update just 60 seconds after prior update. My present software is SPR. My phone heavily discharge and i feel as incriminating the present firmware version and its regular demand for firmware update.
Someone, proposed i download and flash up my phone with latest firmware. At SamMobile, there are options for Sprint and XAF versions of firmware. Please anyone with an advice on selection choice and maybe a little comment.
jimmyoh said:
Did it remove that annoying hands free activation???
Click to expand...
Click to collapse
Still there on the XAS version.
And for the boot sound it has the Note 3/ S4 version instead of the normal S5/Note 4 one.

VoLTE setting enabled but seems to not work

I am running the latest leedroid currently but I have had the same issue on stock. So how can I get VoLTE enabled? I have heard the clarity of VoLTE on my Nexus 6P in the past so I know it isn't enabled. I just want that clearness again.
drago10029 said:
I am running the latest leedroid currently but I have had the same issue on stock. So how can I get VoLTE enabled? I have heard the clarity of VoLTE on my Nexus 6P in the past so I know it isn't enabled. I just want that clearness again.
Click to expand...
Click to collapse
If you are in the united states, volte will only work on stock or stock based Roms. It has to do with the system partition being modified. Only reason stock based roms have volte is because all mods are managed by magisk, which is what they call "systemless".
---------- Post added at 08:36 AM ---------- Previous post was at 08:32 AM ----------
drago10029 said:
I am running the latest leedroid currently but I have had the same issue on stock. So how can I get VoLTE enabled? I have heard the clarity of VoLTE on my Nexus 6P in the past so I know it isn't enabled. I just want that clearness again.
Click to expand...
Click to collapse
If you are in the united states, volte will only work on stock or stock based Roms. It has to do with the system partition being modified. Only reason stock based roms have volte is because all mods are managed by magisk, which is what they call "systemless". Magisk is installed outside of the system partition, which makes pokemon go, android pay, and now some playstore apps work
I'm in the US and I am running on T-mobile via metropcs. On my Nexus 6P VoLTE worked with them. can anyone in the US on tmobile confirm VoLTE working on leedroid?
drago10029 said:
I'm in the US and I am running on T-mobile via metropcs. On my Nexus 6P VoLTE worked with them. can anyone in the US on tmobile confirm VoLTE working on leedroid?
Click to expand...
Click to collapse
anyone? still no VoLTE Can someone with a tmobile htc 10 confirm if it works on the HTC 10 via tmobile or metropcs, thanks!
drago10029 said:
anyone? still no VoLTE Can someone with a tmobile htc 10 confirm if it works on the HTC 10 via tmobile or metropcs, thanks!
Click to expand...
Click to collapse
VoLTE does not work on LeeDrOiD Oreo for any of the US Carriers. Regarding the comment made in a previous reply, VoLTE worked just fine on the HTC10 Viper Nougat ROM.
I know for a fact that HTC released Oreo for the 10 in early January, pulled it, and then re-released it a few weeks later. Why? I'm not sure. I do know that that the firmware available from the link provided in the LeeDrOiD ROM gets you firmware dated January 3rd, 2018, which is from the first release. I haven't been able to find the firmware from the late January release, or even if it is the same or not.
I'm currently researching how to revert to stock and to take the update directly from HTC, see if it works on their version, and if it does, remain stock. I asked about the issue on the LeeDeOiD page, and got no answers what so ever. As a matter of fact. several people asked and no one got an answer.
I am not sure if this is a ROM issue, or a firmware issue. You say you have a WWE version phone, with WWE version firmware? I have US Unlocked with 3.16.617.2 9.0 Not only does my VoLTE not work, but I lost the call waiting and call forwarding features as well.
I'm thinking volte won't work for awhile until Oreo has a few updates and HTC can get their crap in control and the devs can work better with what HTC gives us. The only reason we are this far is because HTC gave us the kernel source and the devs are trying their hardest with it. They are having many other difficulties with aosp. I'm sure stock based ROMs will get smoother and work better. But for now, we will have to wait
Bob in Northern NJ said:
VoLTE does not work on LeeDrOiD Oreo for any of the US Carriers. Regarding the comment made in a previous reply, VoLTE worked just fine on the HTC10 Viper Nougat ROM.
I know for a fact that HTC released Oreo for the 10 in early January, pulled it, and then re-released it a few weeks later. Why? I'm not sure. I do know that that the firmware available from the link provided in the LeeDrOiD ROM gets you firmware dated January 3rd, 2018, which is from the first release. I haven't been able to find the firmware from the late January release, or even if it is the same or not.
I'm currently researching how to revert to stock and to take the update directly from HTC, see if it works on their version, and if it does, remain stock. I asked about the issue on the LeeDeOiD page, and got no answers what so ever. As a matter of fact. several people asked and no one got an answer.
I am not sure if this is a ROM issue, or a firmware issue. You say you have a WWE version phone, with WWE version firmware? I have US Unlocked with 3.16.617.2 9.0 Not only does my VoLTE not work, but I lost the call waiting and call forwarding features as well.
Click to expand...
Click to collapse
I already moved onto the glorious Galaxy S9. it's been amazing #noregrets and thanks for confirming.

Please Confirm - Does stock AT&T S9 allow Tethering?

I am trying to decide between these two versions.
I dont really see the downside to the AT&T version as I dont plan on switching carriers, and from what I understand, the unlocked version wont support certain AT&T calling features.
Aside from some additional bloat - I recall it used to be that the AT&T versions didnt allow tethering. I think they currently DO allow tethering, correct?
Any other downsides to choosing the AT&T variant?
Thanks
For tether u must subscribe to tethering package or mod to unlocked firmware change apn and enjoy
Thanks! So thats a big reason to go with an unlocked phone vs AT&T version...
lirong said:
Thanks! So thats a big reason to go with an unlocked phone vs AT&T version...
Click to expand...
Click to collapse
I have att branded and Odin the u1 firmware and was good to go.

unlocked firmware with carrier CSC?

I've got an N975U1 (i.e., US unlocked N10+) on T-Mobile. Sometimes new firmware for that model is not released OTA by T-Mobile, so I flash the XAA version manually. But if I understand correctly, I lose some features that way (e.g., VoLTE and RCS).
But if I were to flash a new firmware version using that version's BL ,AP, and CP files, but with a TMO CSC file taken from a previous firmware version (when the new firmware hasn't yet been released with the TMO CSC), would that work? And would it give me the missing TMO features?
If the answers are yes, then also, if I flash a subsequent firmware version using HOME_CSC (to keep my settings etc.), would I still keep all the TMO features at that point?
Gary02468 said:
I've got an N975U1 (i.e., US unlocked N10+) on T-Mobile. Sometimes new firmware for that model is not released OTA by T-Mobile, so I flash the XAA version manually. But if I understand correctly, I lose some features that way (e.g., VoLTE and RCS).
Click to expand...
Click to collapse
You only loose the built in video calling in the dialer. VoLTE and RCS should work just fine.. T-Mobile is rather friendly towards bring your own devices and allowing access to all the features the network offers. This is in contrast to AT&T that provisions things like VoLTE (and other features) to devices they sell via a whitelist of IMEI numbers.
Gary02468 said:
But if I were to flash a new firmware version using that version's BL ,AP, and CP files, but with a TMO CSC file taken from a previous firmware version (when the new firmware hasn't yet been released with the TMO CSC), would that work? And would it give me the missing TMO features?
If the answers are yes, then also, if I flash a subsequent firmware version using HOME_CSC (to keep my settings etc.), would I still keep all the TMO features at that point?
Click to expand...
Click to collapse
That will not work. You can't mix and match pieces of previous firmware versions with current firmware versions.
scottusa2008 said:
You only l[o]se the built in video calling in the dialer. VoLTE and RCS should work just fine.
Click to expand...
Click to collapse
I just checked and the dialer does have a video-call icon. There's no setting anywhere for VolTE/HD-voice, so I'm not sure if it's enabled. I haven't tried RCS.
That will not work. You can't mix and match pieces of previous firmware versions with current firmware versions.
Click to expand...
Click to collapse
Ok, thanks. Just for future reference, is there any other method for changing the CSC in order to obtain carrier-specific features with the unlocked firmware?
EDIT: I just saw another thread about this question. https://forum.xda-developers.com/galaxy-note-10+/help/csc-change-t3983769
Gary02468 said:
I just checked and the dialer does have a video-call icon. There's no setting anywhere for VolTE/HD-voice, so I'm not sure if it's enabled. I haven't tried RCS.
Ok, thanks. Just for future reference, is there any other method for changing the CSC in order to obtain carrier-specific features with the unlocked firmware?
EDIT: I just saw another thread about this question. https://forum.xda-developers.com/galaxy-note-10+/help/csc-change-t3983769
Click to expand...
Click to collapse
Sorry, was typing the reply on my phone and the auto complete chose the wrong word.
No toggle will be present in the settings menu for VoLTE as it is automatically enabled. If you place a call and your data stays on LTE then your good to go. RCS should be available if your using Google Messages.
Not that I know of outside of flashing the USERDATA and CSC for the carrier in question. At that point you might as well run the N975U firmware for the carrier. If your going to flash the CSC or USERDATA from T-Mobile make sure it's the same firmware version as what your trying to flash with the U1 firmware.
I just got done changing my CSC from xar to att to get the latest on my unlocked note 10+, no issues here
scottusa2008 said:
At that point you might as well run the N975U firmware for the carrier. If you['re] going to flash the CSC or USERDATA from T-Mobile make sure it's the same firmware version as what your trying to flash with the U1 firmware.
Click to expand...
Click to collapse
Yup, but the problem is that T-Mobile seems to lag in releasing new firmware, both for N975U and N975U1. That's why I've been flashing the N975U1 firmware manually.
appleknight said:
I just got done changing my CSC from xar to att to get the latest on my unlocked note 10+, no issues here
Click to expand...
Click to collapse
What method did you use?
Gary02468 said:
What method did you use?
Click to expand...
Click to collapse
I just removed my SIM, rebooted, changed it by *#272*IMEI#, checked for updates, there were actually two coming from XAR to ATT. Once the last update was done I just put my SIM back in and the phone rebooted on its own to change back to XAR. No wipe, no loss of any data. hope this helps!

Noob Question about note 10+ version

Hi everyone hope you're doing excellent I bought a note 10 plus on november last year suddenly I stopped receiving OTA updates this have at&t logos but its unlocked already I work at an airline and I'm not using at&t sim card since I bought the phone and even with my country's sim card I received ota updates.
I was wondering if its possible to flash it to android 10 currently the phone is running android 9 but when I connect it to the pc smart switch says phone is up to date, same happens when I verify software updates from the phone.
Baseband version: N975USQU1ASGO
My questions are:
- Can I flash the phone using any of the android 10 firmwares in the forum? or do I have to make sure it will be compatible with some specific versions?
- If I flash the phone it will it still be unlocked?
thank you.
Don't know.
I would leave it on Pie; stable, fast and well behaved.
Scope storage and the trouble it may cause hasn't been dragged out into the sunlight yet... plus the older apks it probably will break that have no replacement.
If you do load Q let us know what you think.
Hi @DiegoSV93
DiegoSV93 said:
this have at&t logos but its unlocked ... and even with my country's sim card I received ota updates.
Click to expand...
Click to collapse
From the lines above we know it's not locked but caution because it isn't rooted neither.
DiegoSV93 said:
I was wondering if its possible to flash it to android 10 currently the phone is running android 9
Click to expand...
Click to collapse
Possible, yes ... if it's desirable only you can determine after acknowledging de pros and cons of the upgrade. As @blackhawk pointed out, there are some caveats to be considered. Nevertheless please be advised that this is your decision and none here can be responsible for mistakes or misfortunes that may occur. It's all on you.
DiegoSV93 said:
when I connect it to the pc smart switch says phone is up to date, same happens when I verify software updates from the phone.
Click to expand...
Click to collapse
If these are real issues, I would suggest tackling them with the upgrade and if not solved, even downgrade back.
DiegoSV93 said:
Baseband version: N975USQU1ASGO
Click to expand...
Click to collapse
Your baseband version if circa 2019-08-18 so ... pretty ancient for any device freak terms (like last century)
DiegoSV93 said:
My questions are:
- Can I flash the phone using any of the android 10 firmwares in the forum? or do I have to make sure it will be compatible with some specific versions?
Click to expand...
Click to collapse
The above question has more than an answer:
a) The firmwares available in the forum are for rooted devices so the answer is NO. None firmware available here is fitted for you present setup (the "but" comes later)
b) Yep ... you have to keep compatibility of your hardware with the firmware you flash. Your devide is a N975U so you shall restrict only for the respective family.
And now comes the "but" ...
The firmwares in the below list shall fit your hardware. They are official Samsung releases for the hardware you've mentioned.
https://www.sammobile.com/samsung/galaxy-note-10-plus/firmware/SM-N975U/USC/
The above list was filtered only with USA (No carrier) options because, as you've said, it's unlocked.
The complete list is @ https://www.sammobile.com/samsung/galaxy-note-10-plus/firmware/#SM-N975U and it contains the carrier locked ones too.
You will have to search and read about "flashing with odin". To speed up the download use Samfirm after reading some howtos about it too ... https://samfirmtool.com/
DiegoSV93 said:
- If I flash the phone it will it still be unlocked?
Click to expand...
Click to collapse
Yep ... pretty sure it will.
DiegoSV93 said:
thank you.
Click to expand...
Click to collapse
U r welcome.
Nice regards.
.

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