Thanks for that. I didn't realise I would need to download one step per build essentially. Unfortunately, it would seem that the next step i need to take from 126.96.36.199 build 38 is to zd1k_188.8.131.52.8. but even that image is coming back as not a valid image. Can I confirm that the 1125 is under the 1100 family as it's phrased in the support section?