Huawei Honor 6 - Manual (Page 72)

Phone settings
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incorrect PIN is entered. If this limit is exceeded, you must enter a PIN
unblocking key (PUK), which you can obtain from your service provider.
The number of consecutive attempts to enter the PUK incorrectly is also
limited. If this limit is exceeded, your SIM card will be permanently
disabled. For details about these limits, contact your service provider.