forced updates on amps bricks system

At a given age, each model has a failure signature. This doesn’t mean that they will all fail at exactly the same time in the same manor, but the failure mode(s) changes over time. Early failures could be cracked buttons, missing feet, assembly errors, etc. Later failures will involve internal components. I have come across rumors of partial memory failure and this can be frustrating. For the sake of discussion assume that a small portion of memory has failed, but during normal operation this area is not used. During an update a large compressed file is downloaded. As this file is uncompressed its memory footprint expands. Then various areas of the firmware must be updated. It’s a tricky process similar to changing socks while running. If this business expands into the defective area of memory, the unit will crash and may not be able to restart. It is possible that a Factory Reset or an additional attempt to update will avoid the defective area.

While Mother Nature is never fair and units can fail at any time, it is curious that both of your units failed at exactly the same time. If this is a memry issue, it’s possible that memory failed weeks ago and at different times for each unit, but the update attempted to access the area in both units.

A wild card work around attempt would be to power down the units for a day or more, make sure that they are cool, then attempt the update. It’s possible that the cool memory will work long enough to allow a successful update.