[Q] No blue light on reboot (2ndinit) topic

Hi guys, I've read other threads about this and I'm getting nowhere tbh, The phone is rooted and is on Android 2.1, I read that I might need to upgrade to 2.2 for 2ndinit to work but I've no idea how to do this as the phone says it already has the latest software?
Any help would be greatly appreciated, thanks.