I am also experiencing this issue with a samsung galaxy s8. Very annoying.
Did some test with someone else :
SMS to SMS : ? instead of special characters
RCS to SMS : ? instead of special characters
RCS to RCS : Works fine.
Pretty sure something is up with Rogers SMS.
A warm welcome to all of the new members of the Rogers Community Forums! =)
Several of you have reported issues with sending french characters through SMS. We have received an update on this matter and a correction was applied last night. The issue was confirmed resolved by many affected users. If there are still users in the Community that is experiencing this issue please let us know so we can continue to escalate Tickets to investigate.
Thank you for posting your concerns!