Mini brain 2 update...
 
Notifications
Clear all

Mini brain 2 update from 3.4.086 to 3.4.139 damaged CH2 output

2 Posts
2 Users
0 Reactions
114 Views
(@web012)
Active Member Customer
Joined: 7 months ago
Posts: 6
Topic starter  

I updated a working Mini Brain 2 with 80+ flights on it from 3.4.086 to 3.4.139 and upon power-up, servo on Ch2 does not work. No other changes were made with setup, radio, or other changes to the servos or air frame. Exchanging servo 2 with servo three shows the servo to be working, so the problem is with FBL Ch2 output not producing a signal to the servo.

Two days earlier I flew the helicopter 6 times with no issues, and in fact enjoyed it.

This is an oscilloscope picture of the failed Mini Brain 2:

scope 30 bad ch2 output

(yellow is CH1, green Ch2, blue Ch3, and red ch4)

The trace in green is the problem output. How can this output fail with just a firmware update?

Going back to a factory reset, or previous firmware versions also do not fix the problem.

For reference, below is a trace from a working Mini Brain 2 from another helicopter:

scope 33 good outputs

Please help with the failed CH2 output.


   
Quote
(@customercare)
Reputable Member Admin Registered
Joined: 6 years ago
Posts: 1118

   
ReplyQuote
Join Waitlist We will inform you when the product arrives in stock. Just leave your valid email address below.
Email Quantity We won't share your address with anybody else.