If you are still on version 3.x, upgrade immediately for security and performance. If you are on 4.0 (non-.1), the upgrade fixes minor annoyances—worth doing but not urgent.
Even with a smooth process, issues can arise. Here are the top 5 user-reported problems and their solutions. Stb Upgrade Ver 4.0 1 Download
: Strengthens device security to protect against unauthorized access and potential malware exploits. stb-upgrade-infosat-4.0.1.rar - 4shared If you are still on version 3