Issue:


How many times can I attempt to use the PIN before it locks the KeepKey?


Solution:


You get 3 attempts before delays are added.  After 3 attempts you must wait 2 seconds. Each time you enter a wrong PIN, the wait time doubles. After 4 attempts you must wait 4 seconds.  After 5 attempts you must wait 8 seconds.  There is no way to get around the delay, even unplugging the device.