Last edited by Jei_ASUS on 2020/3/19 11:08
Hi najafi.saleh21,
When did this problem start to appear? Could you recall which firmware version it was working normally?
Could you tell us your operator?
Could you show me a screenshot or a short video of the problem?
Could you show me a screenshot of the SIM status when this happens?
(Settings > System > About phone > Status > SIM status)
Please change to another SIM card by another operator, and check if the problem still appears.
When the problem appears, are you in a building/ on a transportation/ in the basement/ indoor or outdoors?
Where is the approximate location where this happens? Have you checked in different locations?
Thank you 🙂