Tahnks Davey and Ggow, reloaded 5.1.2 and then went throigh the process again. Now got cm12 on the device. Excellent for £50!
I was on 4.0.4 YAKJU and I had an assert error on my /system/gzip and this is how I fixed it.
First I re-wrote over the system, which did not wipe my personal data. I used The below guide, but missed out step 7.
OK those of you on YAKJU who ca...
I gotta say, whenever people have seen my Nexus 7, they ALWAYS mention the iPad mini...
It's a shame you can't transfer purchases across platforms.
DPI changes can cause the Play Store mark apps as uncompatible.
Gabster21, I had that same error and here is how I fixed it.