S9 + Snapdragon Unlocked Variant - Samsung Galaxy S9+ Questions & Answers

Do you guys know if WiFi calling feature will work on MetroPCS or do I have to flash Metro specific firmware?

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Will unlocked H830 work on AT&T?

Thinking about the G5 to replace my Moto G (2015). I use the AT&T network via Consumer Cellular. Will the unlocked T-mobile version work on the AT&T network with full LTE support? Will probably install a custom ROM and I understand you can't do that with the AT&T version of the G5. Thanks.

S9+ G9650 on T-mobile US for WiFi calling/VoLTE + Root?

Trying to decide whether to get G965FD or G9650 to use with T-mobile US. G9650 will have unlockable bootloader for rooting the device, correct? I realize the device is too new and there is no root for Chinese/HK variant yet but it will be there soon if it has unlocked bootloader.
Will flashing T-mobile US CSC give the VoLTE+WiFi calling features while preserving the unlocked bootloader and root?
The only reason I ask is because Exynos S7/S8+ modem download speeds suck on T-mobile US(10Mbps vs 60Mbps on Qualcomm in same location at same time when I tested). And then G9650 may support band71 as G965FD does not for 600MHz LTE on Tmobile.
Bump...
damn, does S9+ SM-G9650 have or not unlocked bootloader ?
would awesome to have 256gb vs low 128gb on S9+ SM-G965F
It has an unlocked bootloader from what others have posted so far. In fact there is first version of TWRP being tested on it looks like. Not sure if we can flash US CSC on it though. Also the modem on it probably is missing band 71 like international Exynos. There won't be many ROMs out for it but at least you can get root, dual SIM and Snapdragon advantage(as mentioned in reviews) I guess....
I think I'm only going to root if there is a way to go back to stock if I want.
I had an LG V20 on Sprint and I rooted it. Which is fine. All worked well and I was able to uninstall LG related crap I did not want. But with that I could not receive Android updates. I wasn't running a custom ROM, I just wanted root to remove LG installed crap.

flash att firmware on unlocked s9+

bought the s9+ direct from samsung unlocked. Didn't realize HD voice, volte an wifi calling wouldn't work. Is there any way to flash the att firmware onto a s9+ (snapdragon model)?
https://forum.xda-developers.com/galaxy-s9-plus/how-to/g965u-g965u1-firmware-links-t3763487
I used this for flashing sprint!
WOrked perfectly, thanks!

lg g8x sprint unlocked on tmobile volte and cross flash with USA unlocked variant

1. does lg g8x sprint unlocked support tmobile volte?
2. can we cross flash lg g8x sprint unlocked with lg g8x USA unlocked variant?
I have a Sprint unlocked version and use it with Google Fi on T-Mobile towers and I cannot use VoLTE or wifi calling. I'm not sure about flashing it, I'd guess so, but haven't tried...

Question Any version that has dual-sim and Wifi Calling on T-Mobile in US?

Even with some flashing/MSMtool/logkit/code/unlock/root, is it possible?
If Possible buy an Unlocked Version from Europe, China or India as Bootloader cannot be unlocked on an Carrier locked device from T-Mobile or Verizon.
Move to Oxygen OS 12.1 Global that supports 17 5G SA & NSA Bands, however with flashing other region firmware will not support carrier features like VoWiFI and VoNR and ViNR services.
gonetask said:
If Possible buy an Unlocked Version from Europe, China or India as Bootloader cannot be unlocked on an Carrier locked device from T-Mobile or Verizon.
Move to Oxygen OS 12.1 Global that supports 17 5G SA & NSA Bands, however with flashing other region firmware will not support carrier features like VoWiFI and VoNR and ViNR services.
Click to expand...
Click to collapse
It is unfortunate that it is extremely difficult to get dual VoWifi with latest oneplus phones in US. Even esim support would get the job done.
So the international version Cph2415 which has all the t-mobile bands support volte and wifi calling?
daviddem said:
So the international version Cph2415 which has all the t-mobile bands support volte and wifi calling?
Click to expand...
Click to collapse
wait... you sure? Do you have any reference or did you buy a cph2415 and test it out? Is it T-Mobile only, or also ATT and Verizon and MVNOs?
After seeing your post I also found this DP: https://forum.xda-developers.com/t/...-latest-ne2213_11_a-15.4470081/#post-87168325
Interesting.. need to do more research on this.

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