How do you know your v2.x firmware My Cloud upgraded to v4.x? V4.x IS NOT newer than v2.x firmware. The v4.x firmware is used on OLDER first generation single bay My Cloud P/N that ends with “-00”. Generally you cannot manually flash the v4.x firmware to v2.x My Clouds. One typically receives an error when they attempt to perform the flash and the user is returned to the My Cloud Dashboard.
I think there are a few other threads here that discuss the single bay second generation My Cloud stopped functioning after the very latest firmware upgrade.
