problem w bao feng uv82l

i got this radio last week.......programmed it with chirp......from inside the house ....squelch at 3....i i could receive local police..a..repeater from some distance in town...i dont think ive made any menu changes but i might very well have...now i receive no noise whatsoever un less i turn the squelch off completely....only station i can hear is weather....now i have a nagoya dual band antennae......and even with it and outside....same thing.....what can i have done?...i havent been on the air in quite a while and havent had a ht in probably 10 years..help...tnx...ted...