AT&T S8+ Phone want to Install U1 firmware - AT&T Samsung Galaxy S8+ Questions & Answers

If I install G955U1 firmware on my AT&T S8+ will I still have VoLTE??? It is a Sim Unlocked AT&T phone Branded!!

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Unlocked Firmware

I got G955u (US unlocked version) of Galaxy s8 Plus. I flashed verizon firmware on it by mistake, now I can't get rid of Verizon bloatware and logos even I have flash G955USQU2C (XAAS). Is there any way to remove them from my device, which FW version is free of carrier bloatware for unlocked devices?

Will flashing my unlocked sm-g930t lock it?

I just purchased a Galaxy S7 SM-G930T online but I live in Canada and use the Koodo Network. I can put my Koodo sim in and it all works fine but I want to update it from 6.0.1 to Android 8, and it wont let me do it OTA if I dont have a T-Mobile sim. Can I download the stock T-Mobile Android 8 Firmware and flash it using Odin and still be able to use my Koodo sim or does flashing the stock firmware lock the phone?
Thanks

Will flashing my unlocked sm-g930t lock it?

I just purchased a Galaxy S7 SM-G930T online but I live in Canada and use the Koodo Network. I can put my Koodo sim in and it all works fine but I want to update it from 6.0.1 to Android 8, and it wont let me do it OTA if I dont have a T-Mobile sim. Can I download the stock T-Mobile Android 8 Firmware and flash it using Odin and still be able to use my Koodo sim or does flashing the stock firmware lock the phone?
Thanks

Flash S8+ Unlocked Firmware to ATT S8+ but retain VoLTE

I have a sim unlocked ATT Galaxy S8+ on Android 9 (Pie) being used on the VZW network.
I would like to flash to the"unlocked USA" firmware but retain Volte (CSC). I have read the unlocked firmware does not support VoLTE.
Is there anyway to do this?
Thanks in advance.
***Update***
Process Complete.

Question [SM-S908U] Flashed Samsung DSH firmware over ATT firmware

Hello! i flashed with full wipe the SM-S908U DSH unknown firmware over my ATT branded S22 Ultra, thinking that it was the unbranded version. I still have all the ATT branding everywhere and also the ATT software update option in settings.
My question is: will i still be able to get OTA updates with this firmware?
Unbranded firmware is U1 firmware. DSH is Dish network/Boost Mobile
hyelton said:
Unbranded firmware is U1 firmware. DSH is Dish network/Boost Mobile
Click to expand...
Click to collapse
The weird thing is that even though I flash dtbe full firmware, when I booted up, I still had the ATT customizations, but in settings it shows the firmware is updated to the DSH that I flashed? Very weird.
The reason is that DSH firmware is still U firmware with a CSC that adapts the firmware to the SIM installed, therefore it reverted back to AT&T. As previously stated, you need U1 firmware, unlocked defaults to XAA in the US.
So what will happen if I dirty flash with the Home CSC the new DSH U over my SM-S908U1 that has been already flashed from U1 to carrier U Xfinity Mobile hard sim and a T-Mobile eSim ?
Will I still keep my same Xfinity Mobile T-Mobile carrier data ?
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