Please am trying to upgrade to i0s 12 or 14 they are asking for passcode of i don’t have or can’t remember, I need your help please
how can i upgrade to i0s 12 or 14 with a passcode, there are certain apps am trying to update of which i can’t
how can i upgrade to i0s 12 or 14 with a passcode, there are certain apps am trying to update of which i can’t
Your data is not lost if you have a backup either on iCloud or iTunes.

If you see an iPhone or iPad unavailable message or "Security Lockout" screen
If you forgot your passcode, you can use your Apple ID and password to erase and reset your device without a computer.
Learn what to do if you see "[Device] unavailable" or "Security Lockout" on your iPhone or iPad.)

iPhone is disabled.
Following this process is the only way out if your iPhone is disabled. The steps given in this link will help you reset the passcode -> If you forgot the passcode for your iPhone, iPad, or iPod touch, or your ...

Regarding your data…
Please am trying to upgrade to i0s 12 or 14 they are asking for passcode of i don’t have or can’t remember, I need your help please