We have just bought some digital locks for our trip to America
To set them you have to turn the meta lloop back on itself then set your number -something you can easily remember and make sure this shows in the marked area turn th loop back to the lock position and push down to lock it. Display your number code in the marked area and hopefully you should be able to unlock it
Richard
PS When you turn the loop down you may have to push it down to access the reset mode