Hi,

I have strange problem..after powered up my phantom the front red lights dont come on in same time.

Left front light come on and after sec or two comes on the second front light. After this both red front lights are solid and P4 flies  with no problem.

Is this normal or something to worry about?                                                

I think that is part of the start up self diagnostic checks used. The combination of lights will likely help DJI in identifying any problems that might arise during start up.

I only became aware of this fairly recently, was it with the 02.00.0106 update ?

This delay comes every time when i turn on Phantom.

Yes, im on 02.00.0106 update, IMU calibrated, compass also several times.

On DJI GO there is not any error or warning with ESC, or something similiar and like i said before, Phantom flies very well with no problem.

And from DJI support i got this answer:

If there is no error notice from the DJI Go 4 APP. No worry about it.

"No worry about it"  Too many other things to worry about, I guess lol

here is a video for better explanation