Install previous firmware

Hi all,

I'm running 2.9.1 on an APM 1 board and since updating my stock quad has not been the same. Thanks to Randy's help, we've determined that the new code doesn't play well with the older chipset. I'd like to reinstall v2.8.1 since I my quad behaved nicely with that code.

How do I do that? I've searched the boards but have been unsuccessful in finding instructions. I downloaded the firmware but getting it onto the board has been illusive. I see the "Pick previous firmware" link under the firmware page in MP but the names are cryptic. See pic.

3691001050?profile=original

Any help would be appreciated.

Thanks,

Jason

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • Thanks for the replies. The one that ended up working for me was the one that started with "bb5ee0e..." Not sure why it's different from yours Thomas. Actually, I had to try a couple of others like "320cab..." and "76ff.." - they showed 2.8.1 firmware for the quad but I would get the same 404 error from the server.

    After installing 2.8.1 on my stock 3DR quad and running the radio calibration, I took it outside for a quick test. It works so much better than 2.9.1 did. More stable and responsive. Alt hold needs a bit of tuning but it's 100% better. It would be great if there were some disclaimers or system requirements that warned of possible incompatibilities when updating firmware (ie. this firmware only supports APM 2.5 or something to that effect).

    Having such great resources to constantly develop this product is pretty amazing when you think about it. But from an end user perspective it can be really frustrating to "update" to the latest and greatest promising new features or stability only to learn that your hardware isn't fully supported as with the case of APM1 and v2.9.1. I'm thankful there was an easy rollback process and folks on the board to help... though again, as an end user, some documentation would have been helpful. And what's with those cryptic strings??! Why can't it simply say 2.8.1 instead of "bb55eeblahblahblah"?

    Thanks,

    Jason

  • UPDATE: I just used the scroll wheel on my mouse over the MP screen with vrs's of APM and as you scroll the icon info changes to different versions. I will try 2.8 and see if my APM 2.5.1 passes the accel sequence.

    S

    Just tried and firware below 2.9.1 is 404 server not found. :o( almost got excited sorry. As you go through cryptic code the associated vrs appears under icons. another 2.8.1..... iloads but "accel" prompt in CLI not recognized. :o(

  • I think I have similar issues with my 6+ month ago manufactured 2.5.1 board. After update patch for 2.9.1 which MP prompted it has been acting up with accel calibration and gps data response. I would also like to try 2.8 and saw the individual tweaked versions? that seem to be those cryptic codes. I tried erase eeprom and reset and reloading and configuring over and over but nothing MP still saying nan nan nan nan ????. A bit frustrating since I only need to use stabilize but cannot get a simple imu calibration.  I am loading a post with vid,

    S

    -I fly freeflight 1.3 controllers with added baro mod and they only require 1 position imu so this is all new the acc axis process though it is totally still when clicking next/done in each position. Using my welding shop PC sorry for any typos it is dusty. :o)

  • Admin

    @Jason,

    See if you can find: 55ff88a35ed8e625088cc48981c74f3fdf7857bc. This should be ArduCopter 2.8.1.

    Hope this helps.

    Regards,

    TCIII

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @DanielChiaJH: Great racing against @a1k0n today at @diyrobocars! Pretty cool to both break sun-9s at the track today I think I got very…
6 hours ago
DIY Robocars via Twitter
Broadcasting the @circuitlaunch race live now at https://m.twitch.tv/diyrobocars Races begin around 2:00pm PT
11 hours ago
DIY Robocars via Twitter
RT @a1k0n: ran a huge number of hyperparameter tuning experiments yesterday; now I can train a new policy, far with better quality, in 15 m…
11 hours ago
DIY Robocars via Twitter
RT @a1k0n: Did I get rid of hand-tuned parameters? Yes. Am I still hand-tuning more parameters? Also yes. I have a few knobs to address the…
Monday
DIY Robocars via Twitter
RT @a1k0n: I'm not going to spoil it, but (after charging the battery) this works way better than it has any right to. The car is now faste…
Monday
DIY Robocars via Twitter
RT @a1k0n: Decided to just see what happens if I run the sim-trained neural net on the car, with some safety rails around max throttle slew…
Monday
DIY Robocars via Twitter
Sep 24
DIY Robocars via Twitter
RT @SmallpixelCar: @a1k0n @diyrobocars I learned from this. This is my speed profile. Looks like I am too conservative on the right side of…
Sep 24
DIY Robocars via Twitter
RT @a1k0n: @SmallpixelCar @diyrobocars Dot color is speed; brighter is faster. Yeah, it has less room to explore in the tighter part, and t…
Sep 24
DIY Robocars via Twitter
RT @a1k0n: I'm gonna try to do proper offline reinforcement learning for @diyrobocars and throw away all my manual parameter tuning for the…
Sep 23
DIY Robocars via Twitter
RT @circuitlaunch: DIY Robocars & Brazilian BBQ - Sat 10/1. Our track combines hairpin curves with an intersection for max danger. Take tha…
Sep 22
DIY Robocars via Twitter
RT @SmallpixelCar: Had an great test today on @RAMS_RC_Club track. However the car starts to drift at 40mph. Some experts recommended to ch…
Sep 11
DIY Robocars via Twitter
RT @gclue_akira: 世界最速 チームtamiyaのaiカー https://t.co/1Qq2zOeftG
Sep 10
DIY Robocars via Twitter
RT @DanielChiaJH: Always a good time working on my @diyrobocars car at @circuitlaunch. Still got some work to do if I’m to beat @a1k0n howe…
Sep 10
DIY Robocars via Twitter
RT @SmallpixelCar: My new speed profile for @RAMS_RC_Club track https://t.co/RtLb7TcgIJ
Sep 10
DIY Robocars via Twitter
RT @SmallpixelCar: Practiced at @RAMS_RC_Club today with my new @ARRMARC car https://t.co/AEu2hCx89T
Aug 28
More…