You must be entering the wrong code.
Leave it SWITCHED ON...UNDISTURBED for as long as it takes to automatically reset itself ( 1 hour in you case?)
Make sure you have the correct code.
If you require a code...................
The radio SERIAL NUMBER will be required for calculating a code
On some radios, pressing Buttons 6 and 1 or 6 and 2 (together) may display a Serial Number.
If not , then remove the radio from the dashboard.
Radio removal details can be found here
CLICK HEREThen post the radio make+model plus all the letters+numbers on any labels,barcodes or stamped in the metal casing.
This information can then be used to see if a code can be calculated
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