Thumbs down only conect 4g

my problem is that my phone is connected only or 4g lte. and change baseband, firmware, root and did everything and nothing.

my phone is a n900w8 I lived in mexico with telcel anyone know what could be the

i problema es que mi celular solo se conecta a 4g o lte . ya cambie de baseband , firmware , root ya hice de todo y nada .

mi celular es un n900w8 vivi en mexico estoy con telcel alguien sabe cual puede ser el problema