1. Check the SIM Card. The first thing you should do is make sure the SIM card is not damaged or dirty. Follow these steps: Step 1: Turn off the ASUS ZENFONE LIVE and remove the SIM card tray using the provided tool or a straightened paperclip. Step 2: Take out the SIM card and clean the golden contacts with a soft, lint-free cloth. 2. Restart your device. 3. Remove the SIM card, then use the eraser to clean the metal contact part on SIM card and re-install it. 4. If you keep another SIM card , install it to your device and check whether the device can detect and read SIM card ; or try to install your SIM card to other deivces (phone or card reader) to check whether SIM Please follow below steps for troubleshooting:. 1. Reinstall SIM card. 2. Restart your device. 3. Remove the SIM card, then use the eraser to clean the metal contact part on SIM card and re-install it. 4. Hello everyone! I figured out the issue and the solution to the dreaded no network/no SIM card issue for the ZenFone 5Z. It is not a software problem. It is a hardware problem indeed. The new firmware basically lets the SIM card slot "work properly". If the SIM slot of your phone is defective, this issue will trigger after Pie update. .

asus zenfone sim card not detected