Bmw philips radio I enter wrong code.It is not working any

[kaanfy]

Hi I have a bmw philips business rds radio. I change the battery then it requires the code number that I dont have. ı enter the wrong code number It was written wait. I found the code but It is almost more then one week still written on the screen wait. I cant enter code number. I made the battery off wait 2 hours and put the battery in but still written wait. I took the radio off there is also battery in it I couldnt find but I took all the energy from the battery so I hoped I will work but unfortunately it is not. So what can I do more. shall I wait as It written on my screen or there is a way for it. and thank the people here who is helping the others. you are really great..
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Kaanfy

[minnie]

Leave the ignition on in position 1. You need to keep power from the battery to the radio. It might take an hour, 3 or 4. It will reset.