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Radio Code After Holdens Been Shutdown?
- Thread starter Johnno420
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lout
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greenacc
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1296 yes I remember that number.
Just print them out on an A4 sheet and tick them off as you try them. Try 12 codes a day and you will find it within 130 days!
chrisp
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I haven’t tried cracking the code on a VX system, but I have done a different (but similar?) radio for someone else many many years ago.
It sounds similar. It would lock up for a period of time if the wrong code was entered, and it only had 6 digits. I opened it up and worked out that the memory was retained by a capacitor and thus this set the lock out time after an unsuccessful code entry. What i did was wire up a resistor and momentary switch across that capacitor. This allowed me to discharge that capacitor and reset the lock out time. Another switch (toggle switch) was wired in to the 12V supply (equivalent to disconnecting the battery). It was then a matter of turn on the 12V, try a code, if unsuccessful, turn off the 12V, press the momentary switch, and repeat with the next code. I could then try several codes per minute, so about an hour or so later I had worked out the code.
It sounds similar. It would lock up for a period of time if the wrong code was entered, and it only had 6 digits. I opened it up and worked out that the memory was retained by a capacitor and thus this set the lock out time after an unsuccessful code entry. What i did was wire up a resistor and momentary switch across that capacitor. This allowed me to discharge that capacitor and reset the lock out time. Another switch (toggle switch) was wired in to the 12V supply (equivalent to disconnecting the battery). It was then a matter of turn on the 12V, try a code, if unsuccessful, turn off the 12V, press the momentary switch, and repeat with the next code. I could then try several codes per minute, so about an hour or so later I had worked out the code.