Quote Originally Posted by radargeek View Post
Try doing the Restore Defaults, then reload your configuration. Also see if the firmware updated or not.

If the firmware didn't update, the checksum error was probably due to a corrupt or incorrect firmware file. Try re-downloading and copying it to the USB drive again and see if it works.

Is this a new install of an ALP? Have you registered your serial number yet? Perhaps the update server hasn't updated your firmware file yet.
Thanks radargeek, I'll perform the Restore Defaults and Memorize Sensors function, I didn't want to do it immediately in case the CHECKSUM FAILED problem was caused by something else. I'll also re-format and re-download all four files from the ALP Update website, on to my flash drives, then on to the systems.

I'll also print a Statistic (STATS.ALP) file, which will have the device info and Profile settings on it. In the Yellow Menu, it did state that the firmware version was 5.2.5/6.8, which is the correct new firmware update.

NOT a new install. Both ALP systems 1 year old. I have performed previous updates, since last year, with no problems, such as the CHECKSUM FAILED problem.

Thanks again for your advice, radargeek. I'll post again after I complete another download to the flash drives, then to the systems. It's strange, I never received nor have I ever read anyone receiving a CHECKSUM FAILED warning.