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Update to the Radio from MM soak 4.
Flash this only over devices that are radio compatible with XT1225 Brazil, no wipe is need.
If you don't know if is compatible, or to play safe, make a backup of the modem partition before flash this, with the latest MOD version of TWRP the user can backup restore the Modem partition...
twrp-3.0.2-0-Mod-quark.img
https://www.androidfilehost.com/?w=files&flid=39562