I bought a HTC ONE M7 from ATT last year in Hawaii and I currently live in Australia where I cannot use Vodafone's 4G network because my phone expects LTE to be broadcasted on 700 MHZ instead of Vodafone's 1800 MHZ;
My current software is a stock android: 4.19.1540.9
My current radio is:
Is it possible to flash the radio so that it works with 1800 MHZ and where would I find the radio firmware.
I would also like to have a file of my current firmware or be able to make a backup so that I can revert in case I go back to hawaii or if something goes wrong.
Any help is much appreciated.