Hi there Nevenden04,
I will be happy to assist you in your problem. As we know that you used command+R combination key and a lock type figure appears on your screen. Don't worry it is firmware Password Utility and how to solve it the answer is quite simple just follow the steps descirbed below,
- Reboot the Mac and hold down Command+R to enter recovery mode.
- At the Utilities screen, go to the Utilities menu bar item and choose “Firmware Password Utility”.
- Select to turn the Firmware Password to OFF
If all the steps described above are successful, it will automatically tell you the firmware password is off.
Hoped it helped you and if you are still experiencing any problem then please reply to this thread and I will be happy to assist you,
Warm Regards,
Acme Gamer