So, after reading through several different threads on several sites, the only DEFINITE answer to getting wifi calling on an unlocked S8, even after rooting, flashing, etc. is that you still need to get an IMEI from an ATT branded S8 in order to get the wifi calling, volte, hdaudio, etc. that come with a ATT branded S8??? Has anyone had permanent success flashing the ATT Branded firmware to a unlocked ATT S8 getting wifi calling, etc. to work without having to get a new IMEI? Don't want to have to go through the pains of having to return my unlocked S8, paying the stocking fee (if required) and paying the additional $100 or more for the ATT branded phone. Thank you in advance.
I called AT&T and switched my IMEI to an AT&T S7, but as soon as I connected my unbranded S8 the system automatically switched back to saying I had an unrecognized phone. I don't know what would have happened if I'd used the IMEI from an AT&T S8, because I don't have access to one.
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Is there any way at all to get Wi-Fi calling on an S5 with Verizon?
I bought a new S5 to replace my existing one because I thought Verizon brought that to the S5 some time ago, or so I heard online.
But the phone came with Android 5.0 build# DONGCHAO.A816 with a 15xxxx CID and no sign of Wi-Fi calling.
So my understanding is that the 15xxx CID allows unlocking the bootloader, from there is there any update I can move to with Wi-Fi calling (preferably also root)?
Or even another ROM, like CM? Or is it strictly locked out by Verizon?
Did I jump the gun and buy a phone that isn't going to do what I need?
I was wondering if there is a way to get VoLTE working on a factory unlocked S8 that is using a AT&T Straight Talk SIM card. Right now when I make a call, the data goes to 'H'.
Anybody?
I'm not sure if it's possible but have you tried carrier switch your unlocked S8 to AT&T firmware. That's the only way I could get it to work on my unlocked S8 but I do have AT&T though as a carrier
How did you get it to work on att? I am on att as well and it does not appear to be working after carrier switching my unlocked S8 to att branded also wi-fi calling does not work.
ericsting said:
How did you get it to work on att? I am on att as well and it does not appear to be working after carrier switching my unlocked S8 to att branded also wi-fi calling does not work.
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It worked for me the first time but then the second time I went back to the Oreo beta they went back to AT&T I was only getting H after that when I was calling so I had to borrow my wife's phone IMEI and they provisioned it and it worked again
so how exactly do i go about doing that? I assume this involves calling att or going into a store and giving them the imei from another phone? Does the imei you use have to NOT be already used or can it be in use by 2 phones at the same time? Also so far we have not even told att about this phone we have just moved the sim card so wouldn't they still have the imei of the old phone or do they pull that automatically OTA? If they do pull it automatically then whats preventing it from getting updated again?
All,
I have an original TMobile, Galaxy S8, G950U. I unlocked it through TMobile and I purchased a Straight Talk BYOP kit from the local Wally-Mart, and put the AT&T SIM into my S8.
I know there are a number of guides out there, to do carrier switching. Trust me I have downloaded GBs worth of carrier firmware and combination firmware, eng boot, what have you. Nothing has worked as far as allowing me to carrier switch.
Here is my issue. The building where I work sucks for Tmobile. It is a hardened building and TMobile's signal does not penetrate. AT&T and Verizon work great. I unlocked my phone through TMobile and was able to flash the unlocked firmware on it. But, in theory, this did not enable all the AT&T radios, because I have an AT&T work phone and it works fine in the same spot, but my S8 cannot send or receive calls, in the exact same spot.
The problem is that I am on Bootloader V3 and I cannot for the life of me find an EngBoot with V3, so I can do a carrier switch and flash the AT&T modem. If someone has been able to do this, or if I just suck at searching, then please let me know, I'll be glad to take the hit.
So if anyone can point me the right direction for BLV3 carrier switches, I would greatly appreciate it!
Thanks all, for looking and trying to help.
I recently bought used Sprint Samsung Galaxy S7. It turned out the phone is locked to Sprint and is on bootloader v5. I called Sprint but they refused to unlock it even though it is paid in full because I am not the owner of the account that phone is associated with. I bought it from an electronics recycling company, so they cannot help with this. I would like to use it with a gsm carrier, like ATT or T-Mobile. What are my options here? Can the phone be unlocked by third-party? Even if unlocked, can the necessary bands and other settings be made available? Any hacks that trip KNOX are unfortunately not acceptable in my case (it seems putting U firmware with BL5 will trip KNOX).
IMEIGURUS.COM should have a carrier unlock for you. not saying its free.
That is fine but after it is unlocked would I be able to use it with t-mobile or att without issues? I read a lot about LTE frequencies locked, missing menus to set APNs, etc.
It is fine if the answer to my original question is to simply get rid of the phone. I am already considering this, as I naively thought that all it would need is a call to Sprint to unlock it and then flashing the U firmware.
grga1 said:
That is fine but after it is unlocked would I be able to use it with t-mobile or att without issues? I read a lot about LTE frequencies locked, missing menus to set APNs, etc.
It is fine if the answer to my original question is to simply get rid of the phone. I am already considering this, as I naively thought that all it would need is a call to Sprint to unlock it and then flashing the U firmware.
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There is a thread here about unlocking additional LTE bands.
According to ATT and Samsung the SM-950u is not att branded, they are been sold in swappa as such, i bought one and found out wifi calling wont work on this device as even do it has att firmware and the bloatware it wont provision. any ways to get this done by flashing the wifi calling provision from att
I had this working by flashing the att fw to a u1, and using my att sim, then i changed my imei to an att s7, but it stopped working and my ims registration turned off. I think they suddenly can cross the sim to the imei and block it. The imei on my account updated to show my u1 on its own.