Acer Connect M3 User Manual page 21

There are possibilities of some SIM card errors during setting up the SIM card. Below are some of
the possible error messages that may occur, and the recommended action you need to do to
resolve it.
Note: At this point, if you got one of above errors, you have an option to switch SIM type into
SIMO virtual SIM, or you can keep your option and retry to use the SIM card.
SIM PIN Lock
You can activate SIM PIN lock from Menu > SIM Card > SIM PIN Lock > enable the SIM PIN lock
slider into "ON". You can disable it by switching the slider into "OFF". Both enabling and
disabling this SIM PIN Lock requires the correct SIM PIN.
Change Network Mode (Physical SIM Card only)
19