how can I use a 3G sim on my 4G feroX1 phone

[adekodon8080]

I am using Fero X1 phone which is 4G phone. But my sim card is 3G so I am having a problem of accessing the internet. I need a help as to how I can use the 3G sim on this 4G phone.
Thank you

 

[hang-the-9]

Contact the carrier you have the SIM from and ask them if it's possible.