After updating to NOS 3, my second SIM is not getting activated.
It gets endlessly stuck in activating the second SIM

The IMEI for second SIM slot shows as “null”
After pressing *#06# on the dialler, it shows details of only one IMEI.
Any solution?
SOLVED
Dialled *#*#4636#*#*, went to Phone Info, enabled “DSDS” which refers to Dual SIM Dual Standby, and voila, both the SIMs are active now