Please tell us some basic information before asking for help: Model Name: Asus ROG 3 Firmware Version: WW.17.0823.2009.99 Rooted or not: not Frequency of Occurrence: regularly APP Name & APP Version (If your issue relates to the app):NA After using of my phone I found this issuse regularly on phone. It's telling me to insert sim card always with a pop msg and its frequently popping up and getting network signals and went out again. I could handle this because during gaming and speaking call signal goes suddenly and not even came back some times. I have checked my sim card and reset my phone also still having same issuse. I never seen this issuse in any phone. It's really sucks the users...bad experience of using ROG 3. Kindly give some possible update. Or check with your software team before releasing any of your phone.