How do I unlock my phone to recognize the charger

Check your charging cable and USB adapter for signs of damage, like breakage or bent prongs. Don't use damaged accessories. Use a wall power outlet and check for firm connections between your charging cable, USB wall adapter, and wall outlet or AC power cable, or try a different outlet.

If your iPhone or iPod touch won't charge - Apple Support (IN)

If your iPhone 14 is not charging.....and your charger connects to the phone with a cable.....there are 3 possibilities for this:

The charger is defective. Try a different charger to see if the phone will charge. If this does not help.....

The cable may be defective. Try a different cable. If this does not help....

The charging port on the iPhone may be defective. Take the phone to an Apple Store or authorized Apple Service shop.

You can find an authorized service shop by using this link........Find Locations

If you have forgot your Passcode to unlock your iPhone, you have the option to reset is using your Apple ID here:

If you see an iPhone or iPad unavailable message or Security Lockout screen - Apple Support

If you are unable to do that procedure, then you will need a computer to reset it.

If you forgot your iPhone passcode - Apple Support

If you can't unlock your phone to charge it, follow the provided steps.

What trouble are you having the prevents you from unlocking your phone to recognize the charger?

What do you mean it won't 'recognize' the charger?

Wired or wireless?

If you're getting an error message, what does it say?