Entering the wrong PIN several times on a smart phone/mobile phone is no problem as long as you still have everything that came with the SIM-Card.
SIM-Cards have several codes which are structured hierarchically. Usually PIN 1 and PUK 1 can be found at the card carrier of the SIM Card.
When using a SIM-Card for the first time, the PIN is requested. If not changed in the settings, it will be requested at every restart.
- If the PIN is entered incorrectly several times, the phone is locked and need to be unlocked with the PUK.
- If also the PUK was entered incorrectly several times, it only can be unlocked with the PUK 2 which usually need to be requested at the provider.