Series 3 preparing for update

This morning around 5 am I saw my series 3 had no picture but all the leds were on. Now noon and there was no change. So I pulled the plug and and when plugged back in it went through the booting up procedure then went to preparing for service update after about 15 minuets the colors changed to yellow/green and pinkish violet. Should I leave it or replug it again?

This was a new image on a 1tb hard drive 3 weeks ago. Its been working fine until last night.