All 4 EXD are un-usable. When plugging into any usb port they flash like booting up but don't appear in DVR menu. 3 different brands ;Toshiba,WD and Seagate. All went unrecognizable that day at the same time- Oct 21 5pm when U331 was installed in Hopper 3. I have tried everything listed on forums and suggested by Dish,tried all usb ports,rebooted,shut off and unplugged for 10 min., reset, re-loaded software. NOTHING -works years of recording gone-8TB.
Another new Seagate 2TB Backup Plus Slim (no ext power block-runs on USB power-thats why I didn't use it) that I had formatted months ago with Hopper3 but had not used at all-nothing on it-comes right up in the DVR menu-sources and I was able to copy movie to it and watch the movie so it appears the Hopper3 and usb ports are working fine.
So all 4 drives I was using (2 at a time) have been rendered un-usable on the day of the update. All these had been working fine for up to 1.5 yrs.
Have read many reports of this after the update U331so far on this forum and others but no solutions yet.
Dish says it not their problem because they are and external device. That's why I switched from DTV to the Dish Hopper2 then 3 to be able to use the EXD's but didn't expect this.