I can’t seem to update my android phone from 2.3.4

[Android Central Question]

it’s a second hand cheap one of of the very early models from Samsung and when I try to install latest update I get a “connection failed” come up all the time and I’ve have a good strong connection. Can anyone help?

 

[B. Diddy]

Welcome to Android Central! Which phone? Are you certain there's an official system update for it?