I do not understand this 2 note (post 72)
Step 4 : Use iFile to modify the /etc/hosts file (putting the 127.0.0.1 triplew.garmin.com and gold.garmin.com) & Save. Make sure you check the ownership.
Step 8 : Finally, make sure the gmapprom.img file has the correct ownership – i.e. Owner mobile, Group mobile, User read write execute, Group read execute, World read execute.