Firmware and S7E bands - Samsung Galaxy S7 Edge Questions and Answers

If you flash a different firmware, can it unlock different bands based on which firmware you flashed?
For example, I plan on buying a verizon S7E, if I flash it to either the u firmware or t-mobile firmware, will it unlock band 12?

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s7 firmware flashing of other carriers

I am trying to start a thread for our Qualcomm s7 for firmware flashing of other variants ,so mods please be patient as the s7 development is a little slow , I am confirming that Verizon and sprint are interchangeable according to another thread and a rom Being flashed that wasn't version or sprint, I have seen that the g930u firmware can be flashed to all other Qualcomm devices , I have recently flashed pg9 with errors to g930p so I was unsuccessful, if anyone would help and give more insights on how they flashed there s7 to other carriers using firmware flashing on odin,there is also a way to unlock more bands for lte on our devices
Verizon and sprint s7 interchangeable
https://forum.xda-developers.com/sprint-galaxy-s7/how-to/verizon-stock-rom-interchangeable-t3519552
Sprint to other carriers using g930u firmware
https://forum.xda-developers.com/att-galaxy-s7/how-to/xda-community-love-g930u-t3415875
More LTE bands
https://forum.xda-developers.com/sp.../guide-enabling-additional-lte-bands-t3563474

Convert G900A (AT&T) firmware to SM-G900W8 VMC Canada (Virgin Mobile)

Hello,
Is it possible to convert G900A (AT&T) firmware to SM-G900W8 VMC Canada (Virgin Mobile) firmware?
Thanks!
no. different bands. odin will not allow you to flash the firmwares
the G900A is bootloader locked, not o good variant to flash roms/root
but if phone is sim unlocked it should work on any gsm netwrork.
as for canadian fw, why would you want it, all fw are basically the same except the bloatware that is added and/or specific carrier apps for some added user functionality.
the radio/modem might come into play depending on the variant/carrier, but should be ok from att to use in canada

Flashing Carrier Firmware to the Unlocked Model

Does anyone have recent experience flashing carrier firmware to the unlocked (U1) model, especially on BL5? Does it still require combination firmware or can I just flash the latest AT&T firmware from Updato using regular Odin?
It would just be regular firmware from at&t. The same way if you wanna flash back to the unlocked firmware. No combination files are needed.

Flashing AMZ KDZ to US997 With Unlocked Bootloader?

The Prime version of the US997 has all the carrier-specific features from AT&T, T-Mobile, and Verizon that the regular US997 does not have. Unfortunately, the Prime version also has a locked bootloader. Might it be possible to flash the Prime version firmware to a US997 with an already unlocked bootloader? What typically happens when firmware from a locked phone model is flashed to the unlocked model? Is it possible to only cross-flash specific partitions like the CSC or AP like in Samsung models (when using Odin)?

Cross version firmware updates

Is it safe to upgrade firmware targeted for one Galaxy S10+ device to another device?
Assuming both phones are either running Snapdragon or both phones are running Exynos.
Example:
- buy SM-G9750/DS (China/Hong Kong version)
- flash firmware from SM-G975U1 (US Unlocked version)
Will this be safe? What is the procedure? Has anyone attempted it?
Will I lose Dual SIM capability?
What are the potential benefits of doing so?
Will this also enable more bands (which are not enabled on China/Hong Kong version of the phone? example band 66 and band 71?).
Is there other way to enable those bands (CDMATool does not show those bands in selection).
Bands are hardware, not firmware. Flashing different firmware won't enable more bands. Flashing different firmware won't get you anything I'm afraid. They all effectively share the same firmware. All you'll do its cause potential issues.
I know the Exynos dual SIM variants share thw same firmware as the single SIM Exynos variants. But I'm not sure about the G9750/DS and G975U1 .

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