❓ Help Old 963 eny sim detected but no signal

[dusttot]

eto Hindi na siguro bago. 936 model sim detected but no signal. naka auto naman po into. I try debrand unlock pero ayaw parin. pag minsannaman nag green tapostapes tapos nag blue blue then nagkakasignal after a few sec. red ulit.

somebody help me.