LUBA 2 can gain network connection with the 4G SIM card. We need to turn off the PIN code first on the phone before installing it.
Turn off the PIN code on an Android phone.
1. Open Settings.
2. Scroll down and tap the Security or Location & Security option.
3. Tap Other security settings.
4. Tap Set up SIM card lock.
5. Turn off SIM PIN.
Turn off the PIN code on an iPhone.
1. Open Settings.
2. Go to Cellular > SIM PIN.
3. Turn off SIM PIN.