13. Do I have to carry out the Settings of JP SMART SIM card after changing my mobile? May 25, 2020 05:07 Yes, it’s necessary to complete JP SMART SIM APN set-up for using all function on the new device. Related articles 10. My iPhone/iPad display showing that the “Invalid Sim” or “No service” after inserting the JP SMART SIM, what should I do? 14. What are the Pin code and PUK number? 2. How to set up internet data on the iOS device? 11. My phone does not display the signal after installing the sim card. What should I do? 1. How to set up internet data on the Android device?