If a rom runs on 1.72 it also runs on 1.73 and vice versa. If your phone is originally imported you can have a 1.73 hboot.
And want a sense 4 rom......every rom with a version number of 3.17 and higher work flawlessly on those hboots. Lower than 3.17 will not work because the touchscreen doesn't work because of the latest updated touchpanel drivers.
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