The S version will only work on firmware 4.7 or above. This is in the manual of the S version....
**Please Note That This Is The Updated Model Of The SMT-i5210, Your System Firmware Will Need To Be Version 4.70 Or Higher To Run This Model Of Handset**
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.