Simply owning a mid-range or higher-end phone like Samsung does not guarantee that it will never face technical issues. One of the most common problems experienced by these devices is the “no SIM card detected” error. This can manifest as an inability to detect a SIM card, or errors such as “No Service” or “No Signal Detected”. Fortunately, we have compiled a list of fixes to help address these issues.
Usually, issues related to the SIM card such as “No Sim Card Detected” or “No Service” can be resolved with ease. However, in some circumstances, the problem may arise due to a damaged SIM card or network problems in your locality. It is recommended to try the solutions provided below in either case.
Here’s what to do if your Samsung Galaxy A02 and A02S is not detecting SIM card
Fix 1: Turn Airplane Mode on and off
Whenever you face any sim card or network-related issues, you should first turn on the Airplane Mode and then turn it off. This method does the trick most of the time. This method disconnects your device from the wireless system until the option is not turned on.