Default Signal and data drop

This issue migh be solved already but ive been searching and havent found any help yet... i god this note 2 yesterday and i keep losing signal and data... like no signal at all... I am on 4.3 and been switching roms and modems with no luck... im currently on mk7 modem meaning i have the t889 version.... any help will be appreciated thanks

Sent from my SGH-T889 using XDA Free mobile app


Sent from my SGH-T889 using XDA Free mobile app