Question Flash Korean snapdragon firmware to G998U1 to change available 5G bands

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Apr 21, 2012
Yesterday I tried flashing my U1 with a Taiwanese firmware and it did not succeed. I'm having the same issues with bands. Where I am they are using bands B3 + B20 for carrier aggregation. So right now I am only able to get LTE and not LTE-Advanced. I guess I'm missing some sort of profile? Because the phone does support these bands.

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