Today it is failing only at the first time when I plug in power.
the steps:
1. Power plug in from the BEC
2. Booting fails
3. plug off
4. plug in again immediately
5. Booting works

Still the same for me i am affraid.....

Can you describe your setup please? Especially how ESC, BEC, buffer pack or other is connected?
It seems the issue could be very dependent on this.

_________________
Spirit System developer

Life battery (6.6v) to EC3 male connector, EC3 female connector with 4 + and - tails with servo connectors.
2 tails to GT channel 0 and Aux2, 1 tail to REX3 receiver into port 3 and 1 tail to Ultra Guard. Lead
from REX3 receiver port 2 to rud port on GT. Hobbywing V4 Platinum 130a ESC Opto with throttle lead to Aux1 and
RPM lead to Pit pin and Telementy lead to sat 1. I have tried it with the leads disconnected from
Ultra Guard and REX3 receiver at same time and still does not boot up 1st time...
It always boots up at 2nd attempt and when it boots it works well with no problems.
I have not tried disconnecting from REX3 and UG with new bootloader....
Thanks for looking into this and sorry to give you more work....
Regards Adrian

Just to add, I have exactly the same setup on another hely but with a Spirit Pro and that is all ok....

Hello Tomas
I do not know if you changed anything to do with the boot up with 3.3.2.-r2 (12-08-21).
Since changing to this new firmware yesterday the GT has booted up 1st time
every time since and i have tried it several times so thanks for this.....
Regards Adrian

Hello,
In comparison to 3.3.1 there were small changes.
Please let me know if some of you have any further occurance of the issue?

_________________
Spirit System developer

my Spirit GT never failed to boot after the update.