I just got a Sprint phone and I am in the process of unlocking it. Once I unlock it, should I flash the Sprint S7 with the T-mobile S7 firmware since T-mobile is my provider? I know I won't get wifi calling and VOLTE, but I figured the preconfigured settings on T-mobile APN etc will make it easier for me to use the Sprint phone with less issues? The other option was flashing the International unlocked firmware.
What are your guys' thoughts?
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I purchased a Galaxy S7 SM-G930A (AT&T) at a discount but I use T-Mobile. Is it possible to load this phone with the stock T-Mobile S7 image? I currently cannot use WiFi calling because it is trying to use AT&T's WiFi calling with my T-Mobile SIM card. Do I have no choice but to return this and get a T-Mobile version? Thanks for any help
Or is it possible to get OTAs and WiFi calling with T-mobile SIM and service on an AT&T S7 (G930A)? Will flashing G930T firmware work?
Question for those who know more than I do... If someone gets a sprint S8+ unlocked (A SPRINT DEVICE THAT HAS BEEN UNLOCKED NOT A FACTORY UNLOCKED DEVICE) to use on GSM (T-mobile, AT&T, etc) will it get all the GSM/LTE freqencies and bands for usa gsm services like T-mobile, AT&T, etc... Or are the SPRINT S8+ crippled on the GSM frequencies?
Araltd said:
Question for those who know more than I do... If someone gets a sprint S8+ unlocked (A SPRINT DEVICE THAT HAS BEEN UNLOCKED NOT A FACTORY UNLOCKED DEVICE) to use on GSM (T-mobile, AT&T, etc) will it get all the GSM/LTE freqencies and bands for usa gsm services like T-mobile, AT&T, etc... Or are the SPRINT S8+ crippled on the GSM frequencies?
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If you flash the U1 firmware that comes from the unlocked US phones, you should be good if the phone's already network/SIM unlocked-that firmware doesn't have the carrier bloat, but it detects the SIM card inserted and will adjust the network stuff accordingly so that it operates on the right bands, etc. If you'd prefer to have all the carrier apps/ bloat as well, there are several threads on carrier switching. Flashing the U1 firmware is fairly straightforward and easy, and most carrier features work; Switching from Sprint firmware to another carrier's firmware is a bit more involved but still totally doable. You're going to have to do one of the two though.
Edit: All of the US models have the exact same hardware, with all of the same radios...the unlocked model is the exact same as a variant from T-Mobile/Sprint/etc. It's just the CP & CSC firmware files that dictate the network stuff.
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Hello everyone,
I bought a samsung s10e that I suspect is the AT&T version G970UZKAATT. This phone is supposed to come sim unlocked.
- Does that mean that when I insert a TMob sim card, will it reboot like the S9 and the TMobile logo will show up, then
the phone will work just like a regular TMob version G970UZKATMB?
- Will it have wifi-calling for TMob?
- Will it support all TMob LTE and HSPA frequencies e.g. band 71?
- Do all versions of the G970U support the same frequencies once unlocked just as these websites suggest?
https://www.gsmarena.com/samsung_galaxy_s10e-9537.php
https://www.phonearena.com/phones/Samsung-Galaxy-S10e_id11114
Thanks for your prompt reply!!
mdvartic said:
Hello everyone,
I bought a samsung s10e that I suspect is the AT&T version G970UZKAATT. This phone is supposed to come sim unlocked.
- Does that mean that when I insert a TMob sim card, will it reboot like the S9 and the TMobile logo will show up, then
the phone will work just like a regular TMob version G970UZKATMB?
- Will it have wifi-calling for TMob?
- Will it support all TMob LTE and HSPA frequencies e.g. band 71?
- Do all versions of the G970U support the same frequencies once unlocked just as these websites suggest?
https://www.gsmarena.com/samsung_galaxy_s10e-9537.php
https://www.phonearena.com/phones/Samsung-Galaxy-S10e_id11114
Thanks for your prompt reply!!
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Click to collapse
Hardwares all the same. No, it wont boot with a Tmob logo. If you want it to act like a Tmob G970 flash the Tmob firmware.
I was just testing a S10e that has G970U1 as model (probably flashed) on the back says G970U.... I inserted an Ultra Mobile SIM card (TMob mvno) and it seems that the wifi calling works on the unlocked ROM .... So no need to flash TMob version, I believe.
Can anyone confirm wifi calling works on the factory unlocked version?
I have the g970u1 factory unlocked with u1 firmware. It has tmobile wifi calling. The only things missing are tmobile video calling and that rcs messaging I think. But, I flashed the tmobile u firmware a couple months back and the phone booted up like a tmobile branded one with the jingle and stuff. I didn't need those so I reflashed the u1
kdanina said:
I have the g970u1 factory unlocked with u1 firmware. It has tmobile wifi calling. The only things missing are tmobile video calling and that rcs messaging I think. But, I flashed the tmobile u firmware a couple months back and the phone booted up like a tmobile branded one with the jingle and stuff. I didn't need those so I reflashed the u1
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Thank you so much for confirming. I've just got my g970u1 factory unlocked and wifi calling with Ultra (TMob mvno) seems to work too. I tested using airplane mode enabling just wifi and I can still make calls
I am thinking of purchasing a Samsung Note 20. If a phone is unlocked I assume it would work on T-Mobile. My question is if I purchase an ATT variant, I know the phone would work with a T-mobile sim, but will VOLTE (wireless calling) work if it an ATT branded phone and wether there's an issues with updates.
Thank you
bobn27613 said:
I am thinking of purchasing a Samsung Note 20. If a phone is unlocked I assume it would work on T-Mobile. My question is if I purchase an ATT variant, I know the phone would work with a T-mobile sim, but will VOLTE (wireless calling) work if it an ATT branded phone and wether there's an issues with updates.
Thank you
Click to expand...
Click to collapse
Basically it should work.
According to the following thread, there might be some issues using 5g though:
At&t Note20 Ultra unlcoked on T-mobile help
I have my at&t note 20 ultra unlocked but have mt T-mobile sim and only internet works! Help. I cannot receive calls or texts- i pop ina Verizon sim and everything works. So I confirm its unlocked. Only with my tmobile sim. Tried apn settings and settings reset and factory reset.
forums.androidcentral.com
My phone is an unlocked AT&T phone. It has AT&T bloatware. The serial number indicates it is an AT&T phone. The service provider software version is ATT. I bought the phone so I could use the wi-fi calling feature which is nowhere to be found. Put the AT&T SIM in my son's phone and he has wi-fi calling. AT&T's website gives the latest firmware as G970USQS5GUF1. My phone was just updated OTA to G970USQS6GUI1 which happens to be the T-mobile firmware. I put a T-mobile SIM card in the phone and I now have wi-fi calling. T-Mobile coverage is basically non-existent in rural Appalachia so I don't want to switch carriers. I have read numerous posts that say the basic firmware is the same for all carriers. So, my question is which files do I need to flash to get wi-fi calling working on my phone? Also, I can't really go back to BL 5 can I? I am totally new to this although I have flashed a Moto before.