/en/qa/tag/programming-lose Powered by Question2Answer /en/qa/67005/06-1500-evo-all-looses-key-programming-after-vehicle-battery-disconnect I successfully programmed the evo-all to a 06 silverado. The evo-all hardware is ver 6 firmware 4.06. If I either disconnect the power to the unit or disconnect the vehicle's battery, the module loses the key programming and I have to reprogram the module. Is this normal or did I do something wrong? I have installed several evo-alls' and never had this problem Chevrolet /en/qa/67005/06-1500-evo-all-looses-key-programming-after-vehicle-battery-disconnect Mon, 04 Jan 2016 09:42:09 +0000