Q: I updated my phone and i forgot my passcode to set up now i cant use my phone

Hi! Check these articles and follow the instructions.

If you forgot your Apple ID  - Apple Support

If you forgot your Apple ID password  - Apple Support

https://iforgot.apple.com/appleid

Sorry, my bad

The only thing you can do is erase the device and set it up as new.

Take a look at this Apple Support article:

If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support

Are you sure you forgot your passcode or is the one you put in just not working? I did my update yesterday and swear the passcode I'm using is correct but no can't access my phone. I've had to reset it and have lost everything that wasn't backed up. Very upset now that I upgraded the IOS. Apple said they hadn't had any other issues so I was a case for them that they reckon just forgot their passcode. What did you end up doing?

I'm having the problem too, Help me please

My new phone requires a 6 digit passcode. My old phone had a 4 digit passcode. I initiated the touch fingerprint system but after turning my phone off and then back on this morning it said i need the passcode to enter the phone