When buying a SIM card, very few people carefully study the information enclosed in the envelope with the operator's contract. But there is a mention of various codes and passwords programmed on the SIM card. Some subscribers have long "befriended" the PIN code, but what is the PUK code? What is it for and what does it affect? Will it be useful to the owner of the SIM card at all?
It's always best to sort things out in order.
What is a PIN code?
This is a personal identification number (Pesonal Identification Number) set by the operator for each SIM card. It is printed on the holder of the SIM card itself, sometimes it is indicated in the contract signed by the subscriber. However, you can easily change it to the one you like more by going to the SIM operator settings on your phone.
As a rule, this code consists of four digits, but by international standards it can include up to twelve characters.
What is it for?
First of all, it is a security code. Any device canconfigure in such a way that it requires the PIN to be entered as a password when turning on, rebooting or changing the SIM card. This will help protect your phone from curious intruders or in case of theft.
You have three attempts to enter it. If they all fail, then the PUK code will be required.
What is the PUK code for SIM
This is a set of numbers that will help out if the SIM card was blocked after entering the PIN incorrectly three times. Its abbreviation stands for "Personal Unlock Key".
This password, unlike the PIN, cannot be changed. It is also printed on a plastic holder, but is assigned to each subscriber's card individually. You can also find out from the operator - on the website (in your personal account) or by contacting the communication office directly.
You can enter this code no more than ten times. If all attempts are exhausted, the SIM card will be blocked. For good. Self-unlocking is not provided - for security reasons.
But let's be honest, even understanding what a PUK code is and where it can be viewed does not guarantee the absence of typos and unforeseen random errors.
What should I do if my SIM is blocked due to a PIN or PUK code entry error?
There is no other way out but to visit the operator's office. To unlock the SIM card, you need to contact the communication service provider.
It is important to understand that any actions with a subscribernumbers are carried out only with the permission and in the presence of the owner of the SIM card or by a person who has a power of attorney certified by a notary. If the card is issued to another person, then you will need to visit the office with him. As a last resort, issue a power of attorney for this procedure.
That is why it is always better to keep the contract and the completeness of the SIM card, in which you can always peep the unlock code or find the address and phone number of the operator.
