Signal not shown

[Fian]

Model: ZS620KL
RAM: 6G
Firmware/APP Version: Android 9
Frequency of Occurrence: 4g
Rooted: No
APP Name:

Why my device is not shown of the signal ?

[diellissonalmei]

Can't get network! No serivice.! https://www.asus.com/zentalk/thread-257935-1-1.html (Source: ASUS ZenTalk Forum) Check this thread.