GALAXY NOTE 4 910C 4G not working after Marshmallow 6.0.1 downgrade using Chimera.

As the title says, mine 910C ZTO had 4g working before downgrade to the latest Brazilian ZTO rom available, but now, when i install (via chimera or odin) any stock rom it doesn't detect 4G signal, only 2G and H/H+.

Is it possible to fix it?

Im using this rom right now (/download/71886/N910CXXS2CPE2_N910CZTO2COJ1_ZTO/) from sammobile but no 4G signal.

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