: Apps like Radio Code for Grundig 91-98 on Google Play or the iOS version on the App Store can generate codes for numerous WKC models, including the WKC 1704, 3201, and 3804.
The unit remains completely unusable until the correct four-digit PIN is entered. What is Grundig WKC Series Code Calculator 4.0? grundig wkc series code calculator 4.0 download
If you can tell me the (e.g., WKC 4000) and the serial number (starting with GR...) , I might be able to help you find the code directly. : Apps like Radio Code for Grundig 91-98