Frsky recently released a new firmware, “ACCST D16 2.X.X”, for their transmitter modules and receivers. However there are some downsides if you flash ACCST 2.0, one of which is that all of your tiny whoops and micro quads with 3rd party Frsky-compatible receivers will stop working with your radio.
What is ACCST 2.0?
Frsky recently released a new version the ACCST firmware – “ACCST D16 2.X.X“. This is for all of their receivers and XJT modules (including external modules and internal modules inside the Taranis).
However, if you flash ACCST 2.0 to your radio, it will no longer work with receivers with original ACCST protocol. This basically breaks compatibility with all 3rd party receivers, such as those built-in receivers in the Tiny Whoops.
If you flash your R-XSR with ACCST 2.0, it will stop working with 3rd party radios, such as the Jumper T16. (probably what Frsky wants)
Additionally, if you flash your Taranis with ACCST 2.0, you will also have to flash all of your Frsky receivers too, this can be a lot of work.
AND… the latest ACCESS firmware (as on 04 Feb 2020) doesn’t seem to support ACCST 2.0, yet… Hopefully the next ACCESS firmware update will address that.
Is There Any Benefit to Upgrade ACCST 2.0?
According to FrSky
- Fixed the channel output error (uncontrolled servo movements) under certain conditions.
- Strengthened correction and verification capability.
I have been flying with the original ACCST D16 firmware since 2013, and never had any issues with the mentioned bug. And if you only use D8, then this update does nothing for you at all.
For me the downsides totally outweigh the benefits (which is nothing IMO), so I probably won’t bother with updating ACCST 2.0.
I guess Frsky just doesn’t want other companies to benefit from their protocol, at all. But ironically part of their success was built on other companies reverse-engineering their protocol and made compatible receivers.
Many in the hobby feel disappointed by the questionable business decisions Frsky have been making in the past couple of years. Trying too hard to be competitive and keep the whole market to themselves, but ended up driving customers away and getting a bad reputation, SMH.