N E F E R P I T O U
Established
Tama ito. Better change band. Gamitin mo muna internal. Pero before mo maplitan dapat naka admin access ka or custom firmware. Search mo nalang.Ito basic related need mo po kalikot yung antenna kung saan direction may signal or hard reset mo nalang..
Otherwise:
I m sure dead yung cell tower sa malapit sa inyo.. Need change Band(need pa admin access(ρáíd) or debrand(free).