To determine your batch/serial number: count the flashes to make digits, like “172131” shown as: • ••••••• •• • ••• • zero is shown as ten, so 20 would be •• •••••••••• click here to enter your number BOSS Switch Removal/InstallationPrevious postv5 Battery PIN (111)Next post Leave your comment Cancel replyYou must be logged in to post a comment.