Verykool R620 - Manual (Page 41)

36
Warning:
The SIM card will be permanently locked if you input the wrong
PUK code for ten consecutive times and you must apply for a
new SIM card from your network provider.
18 Maintenance Guideline
Welcome to use R620. If there is a problem when you are using the
mobile phone, please contact with the vender or consult the local
maintenance center. If your mobile phone is in need of repair, you
can take your mobile phone to local maintenance center, if there is
no local maintenance center, please pass your phone and the
purchasing invoice to the vendor.