Apple Tv With 4.3 Can i Update to 4.4.4

Hi, iv got a ATV2 with 4.3 on it i would like to Upgrade to 4.4.4, can this still be done? or not

any help would be great

thanks

No, unless you have a saved blob 4.4.4 for that particular unit. why not upgrade to 5.3 while apple is still signing it?

Thanks for the reply