Samsung Galaxy S25 Ultra
Turning your phone on and off
See how to turn your phone on and off. To use mobile network services on your phone, you need to insert your SIM into your phone.
1111
Step 2 of 5
If you're asked to key in your PIN, do so and press OK. The default PIN is 1111.
If an incorrect PIN is entered three times in a row, your SIM will be blocked. To unblock your SIM, you'll need to key in your PUK. The PUK can be obtained by contacting customer services. Please note: If you key in the wrong PUK ten times in a row, your SIM will be blocked permanently. In this case, you need a new SIM from EE.
Step 4 of 5
Press Power off.
Step 5 of 5
Press Power off.