Hi, i have a rather daunting problem. We want to deploy our firmware in over 300 devices. All devices use the same firmware except for one variable DeviceID. The id has to be different for every device we use. So device 1 would get id 1, device 2 id 2 and so on. I am sure that some of you have already tackled such problems. What would be the best solution? Maybe set the variable to a specific location (DeviceID _at_ Location) and patch the hexfile? or something more elegant? regards Christian