PSAcars
10th May, 2016, 08:47 PM
Hi to all please help with CDC2 Blaupunkt. A friend of mine disconnected the battery on opel astra and now cd changer locked. I have original upa but read a lot of posts where trying to read, eeprom is erased. I found this in datasheet of motorola mc68hc05x32: SEC ? Secure bitThis bit allows the EPROM and EEPROM1 to be secured from external access. When this bit is inthe erased state (set), the EPROM and EEPROM1 content is not secured and the device may beused in non user mode. When the SEC bit is programmed to ?zero?, the EPROM and EEPROM1content is secured by prohibiting entry to the non user mode. To deactivate the secure bit, theEPROM has to be erased by exposure to a high density ultraviolet light, and the device has to beentered into the EPROM erase verification mode with PD1 set. When the SEC bit is changed, itsnew value will have no effect until the next power-on or external reset. Please help with solution for code. I can not find code generator.