Our aerial cinema company has been using Taranis X9Ds for both aircraft and camera operator command and control for the past year. We have approximately 20 of these units, which are used for our fleet of multiple HL aircraft. We have found them to be reliable for the most part, but as of a couple days ago (Sept. 1st?), when powering on the X9Ds, almost ALL of them are freezing on the start-up page, for no reason that we can discern. We've changed SD cards, tried multiple fully charged batteries, and can only surmise that it's a firmware bug.
To this end, when connecting via USB to the computer -- in an attempt to reload the firmware to correct it if it's been corrupted (latest update was 7/13) using FrSky's firmware program -- it sees the DFU, but will not upgrade and gives a target error. After multiple attempts, the unit will not even power up and is totally bricked.
We directly flashed an SD card with firmware (not through the X9D) and installed the card into another X9D, and found it had no effect. It would still get stuck on the splash screen.
We are confused: what could be the cause of so many units malfunctioning at once and wonder if any other X9D users are having a similar issue?
To this end, when connecting via USB to the computer -- in an attempt to reload the firmware to correct it if it's been corrupted (latest update was 7/13) using FrSky's firmware program -- it sees the DFU, but will not upgrade and gives a target error. After multiple attempts, the unit will not even power up and is totally bricked.
We directly flashed an SD card with firmware (not through the X9D) and installed the card into another X9D, and found it had no effect. It would still get stuck on the splash screen.
We are confused: what could be the cause of so many units malfunctioning at once and wonder if any other X9D users are having a similar issue?