Wiko Ufeel prime - Manual (Page 10)

~ Turning the Phone On and Off
To turn the phone on, press on the ON/OFF button and
hold it down until the phone turns on.
If your SIM card is locked, you must enter the correct PIN
code to unlock the SIM card when the phone is powered
up. Your PIN is supplied by your operator; if you did not
receive it or have lost it, please contact them.
When the PIN is entered incorrectly three times, the
mobile phone is blocked and has to be unblocked using
your PUK (this is supplied with the SIM card; if this is
not the case, you should contact your phone operator).
To turn the phone off, press and hold the ON-OFF button
until the menu opens, then press on
Power Off .
Now press OK to confirm.
The phone vibrates when it is shut down completely.