I am currently based outside Nigeria and I have actively used my line for over one year, I recently changed phones and my SIM is now showing no service
Kindly use the below details to correct the message center number of your line.
On your phone, kindly visit your message settings, select SMS or Text Messages, then choose...
I am deeply sorry for your missing line.
Kindly contact your bank to prevent an authorized access to your bank account if the line is linked to your bank accounts.
Sim swap by...
I found a useful access point setting on YouTube that helped me out .
Then make sure you go to app settings and give Xiaomi SIM service all permissions
