"@Pravit

Regarding your HIL problems...this sounds very similar to the issue I noted much earlier in this forum (see page 2).  For me, every firmware after 2.68 has had this same problem where the MP HUD starts to deviate from FG and eventually the…"

"Thanks for all the hard work...looks like some good changes and I'm excited to get out and fly it!  Is there any word on getting HIL back up-and-running?  Please correct me if I'm wrong but the last version with working HIL capability is 2.68,…"

"Hi...I've been trying to fly 2.73 (on an APM 2.5) using Hardware in the Loop with Flightgear.  Everything connects and starts up just fine.  Manual and stabilize also work well.  However, when I switch to auto mode I get a minute or two of stable…"

"Hi...I've run into an interesting problem...this might not be the correct thread for this but it's a starting point.

I have an APM 2.0 with attached MTK GPS unit.  I just successfully updated the firmware with guidance from this thread (BTW much…"

"Hi...I just updated my quad w/ APM 2.0 to the new 2.8.1 firmware.  I used DaveC's tuning guide and got the gains dialed in really well in the backyard.  When I powered off to replace the battery, I found that it reset most of the gains back to…"