E250 tat ca deu binh thuong chi co la luc goi mo loa ngoai van nghe y vay cha lon them ti nao va nghe nhac cung vay rat nho .ko biet bi j nho may a chi giup . e doan la pm nhung chua bt chay pm sam sung luon tien a nao biet chi e luon nha .cam on nhieu