I have a Canadian S10 (973W) which I cross-flashed it with AT&T firmware with odin-patch. The CSC is for AT&T and I am trying to enable the wifi calling.
It seems that sometimes it works but most of the times it does not. I have the APP0008 error. Also when I have the error it seems I can not check the call waiting as well.
Do you know if AT&T fully allows non AT&T phones to be registered for wifi calling? I know some phones work but some other don't even though the software is for AT&T
It is my understanding that it has to be AT&T branded for them to allow VOLTE, WiFi Calling ....
It may be based on the IMEI numbers being restricted.
Now, if you flash the firmware for AT&T it should work but the forums are full of posts that indicate it does not seem to hold. Sorry and I hope and I am wrong ...
What gets me is these features work fine on Unlocked Models with TMo and Verizon... Very frustrating
Sent from my SM-G973U1 using Tapatalk
U and U1 models are firmware compatible with each other as the "U" stands for Universal. If you have a U or U1 model you can flash any U firmware (Sprint, Verizon, etc) or the U1 unlocked firmware and everything will work given you have the right SIM card for that specific carrier.
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Im thinking about buying the s8+ verizon phone from samsnug direct as they have a great trade in program currently
my questions are..
Do i have to be on verizon to get updates? Im thinking of taking it to straight talk
Can i flash an unlocked firmware of this and the phone still remains working fine?
DOe sit have bands for tmobile / att ?
They are supposedly the same exact hardware. Some of us flashed the combination firmware to be able to unlock the LTE bands. If you stay on Verizon firmware, you will not get any OTA's. However you can use their update software as well as Samsung smart switch software to do manually updates. Plus you can always download VZW firmware from places like Updato.
gqukyo said:
They are supposedly the same exact hardware. Some of us flashed the combination firmware to be able to unlock the LTE bands. If you stay on Verizon firmware, you will not get any OTA's. However you can use their update software as well as Samsung smart switch software to do manually updates. Plus you can always download VZW firmware from places like Updato.
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I am interested in buying the galaxy s8 plus for verizon as well since i will be getting a good deal but I use and would like to stay using AT&T service.
I know that the verizon model is GSM unlocked and could be used with AT&T. I would need to update the APN's to make everything work correctly.
My concern is if it will pick up all the AT&T bands if the phone even supports all the bands. You stated you flashed the combination firmware to unlock the LTE bands.
Would that be exactly what i would need?
If so do you have a link ?
after posting this question I will be doing a search as well.
TIA.
You should just flash the Att firmware then. Check the switch carrier posts for detailed instructions
Sent from my P008 using Tapatalk
I've been through hell and high water trying to get this phone to function on Sprint but the guys at the local corporate store and technical team (via phone support) are telling me it cannot be done. Is anyone in the same predicament as me or has a functioning AT&T Note 8 activated on the Sprint network? I'm using a BYOD SIM and have also flashed my device with N950U1 unlocked firmware.
As AT&T is a GSM network and Sprint is CDMA, I don't think this is possible...
EDIT
Sorry, I guess times have changed. It seems possible now, once the Note8 is unlocked from AT&T.
Sent from my SM-G935U using XDA-Developers Legacy app
gc86 said:
I've been through hell and high water trying to get this phone to function on Sprint but the guys at the local corporate store and technical team (via phone support) are telling me it cannot be done. Is anyone in the same predicament as me or has a functioning AT&T Note 8 activated on the Sprint network? I'm using a BYOD SIM and have also flashed my device with N950U1 unlocked firmware.
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Carrier switching is very much possible with the US variants, so if you flash the Sprint firmware (N950U, not U1) and the Sprint CSC as well, in theory it should work just fine. If there are IMEI complications about not being in 'Sprints system', that's another issue, but hardware wise it should be 100% compatible with Sprint's network.
murtaza02 said:
Carrier switching is very much possible with the US variants, so if you flash the Sprint firmware (N950U, not U1) and the Sprint CSC as well, in theory it should work just fine. If there are IMEI complications about not being in 'Sprints system', that's another issue, but hardware wise it should be 100% compatible with Sprint's network.
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This is precisely what I kept telling the guys at the store, that all of the USDM Note 8's are hardware identical. My only theory at this point is that the device isn't Sprint BYOD eligible because it has an outstanding balance on the AT&T side and therefore isn't "officially unlocked".
I have a Verizon branded Galaxy S8, and I may plan to move to T-Mobile in the future. I know a lot of folks have either flash stock Samsung firmware or T-Mobile firmware, but I read that thanks to a recent update, the phone will adapt to any SIM card that's inserted into the phone. Is this true? Will a T-Mobile SIM work in a Verizon branded phone without flashing the phone first with features like MMS and Wi-Fi Calling?
Would there be any added benefits to flashing a stock or T-Mobile firmware at this point?
Thanks!
imbrenden said:
I have a Verizon branded Galaxy S8, and I may plan to move to T-Mobile in the future. I know a lot of folks have either flash stock Samsung firmware or T-Mobile firmware, but I read that thanks to a recent update, the phone will adapt to any SIM card that's inserted into the phone. Is this true? Will a T-Mobile SIM work in a Verizon branded phone without flashing the phone first with features like MMS and Wi-Fi Calling?
Would there be any added benefits to flashing a stock or T-Mobile firmware at this point?
Thanks!
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For the most part yes they adapt themselves now. Some have to be SIM unlocked but I believe the Verizon model already is. It should say SIM inserted please restart. It will install all the t mobile junk including any volte or WiFi calling. They might have.
I actually put in my Simple mobile sim card into my unlocked Verizon S8 and calling works but im not getting any decent data even tho i live in a area. With good coverage. Would i have to somehow flash tmobile radio? I been corrected the apn settings
Professor may have to manual add the access point. I had to when I did a verizon Z force 2 to Att.
I just got a Note 9 on Amazon, I realize a small risk associated with that. The phone was sold as a factory unlocked device. I received it today and I checked it in the settings and the device is confirmed as a SM-N960U1 which is what it should be. However, when I go to register the phone on Samsung's website, I enter the IMEI and it registered as a SM-N960UZKASPR which is an unlocked sprint variant. I am using this phone on AT&T at the moment, but will be transferring to T-Mobile very soon. Am I going to have issues with this as far as bands and networks are concerned, or anything else? I know I am screwed when it comes to wifi calling and volte.
playerone_ said:
I just got a Note 9 on Amazon, I realize a small risk associated with that. The phone was sold as a factory unlocked device. I received it today and I checked it in the settings and the device is confirmed as a SM-N960U1 which is what it should be. However, when I go to register the phone on Samsung's website, I enter the IMEI and it registered as a SM-N960UZKASPR which is an unlocked sprint variant. I am using this phone on AT&T at the moment, but will be transferring to T-Mobile very soon. Am I going to have issues with this as far as bands and networks are concerned, or anything else? I know I am screwed when it comes to wifi calling and volte.
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What I assume happened is that the phone was a sprint model but was unlocked. The previous owner installed the U1 firmware which is the unlocked and unbranded firmware.
All US models are built with the same hardware, radios etc. Compatible with all networks.
You will be able to use it on Tmobile no problem.
You are not screwed if you want tmobile features
If you want tmobile related features wifi calling and the like, you will need to flash the tmobile firmware.
Hello guys having an us unlocked variant is frustrating as At&t and verizon does not support volte and wifi calling on devices that are not in there brand. So with many googling I found out T-mobile supports unlocked phones for volte and wifi calling and so I switched and yes they do support volte and wifi calling manufacture unlocked devices!
I know it depends on the phone as well but if you google then you will see that at&t and verizon only allows those features there branded devices.
Does this mean you were able to flash the T-mobile rom on to the us unlocked phone successfully?
Thanks
No, I don't believe it means that! T-mo is very problematic in that regard as they use a separate and unique signature key for their roms. I don't believe you can mix them and there's a very high risk of bricking your device if you try.
The other reason I don't believe it means that is I have an AT&T phone, flashed to us open version rom, and it has both wifi calling and volte using a t-mo mvno (mint mobile). So, no, don't assume the op has flashed t-mo firmware to achieve this, it's not necessary and may well end with a brick.
cheers
screwball8 said:
Does this mean you were able to flash the T-mobile rom on to the us unlocked phone successfully?
Thanks
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No, I did not flash it. T-Mobile was the only one that supported unlocked devices for volte and wificalling activating them through the sim card network, So you just need a t-mobile sim card activated.
I went carrier shopping and it seems T-Mobile is the only carrier around to support activating those features for unlocked devices and I was happy as I wont be missing anymore calls and appointments.
i got verizon and it says i have hd voice which is verizon's volte service and I'm on this unlocked phone as well
roy331 said:
i got verizon and it says i have hd voice which is verizon's volte service and I'm on this unlocked phone as well
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The unlocked phone should be the 5QA7 as the model. But dang guess Verizon and T-mobile support those features for unlocked phones. A rep in Verizon told me they dont support unlocked phones when I asked them about volte/wifi calling. I only know that AT&T are greedy company as they only support there branded phones.