Fw 0.400 can not down to 0.100

Hello,

I am a technician for Dji drone.

I purchased 2 license already for my customer on Mavic 2.

And since I got original Fw Mavic 2 0.400 I found a problem to drowngrade to 0.100

I believe since Mavic 2 production starting on October / November 2019 they already install 0.400 firmware.

And it always stuck on 15% firmware flashing progress.

It not happened when I reflash the Mavic 2 that have firmware 0100 or 0000.

By the way, I already used NLD for 15 units Mavic 2 and this issue occured on 0400 fw original factory.

Did any body have this issue and solve it or can someone give me advise on how to downgrade to 100 fw ?

Regards.

DJI has 2 versions Fw 0.400 the older one ist ok, rollback is no Problem.
The newer one has a anti Rollback trap in it and Rollback is only possible to 0.300 .

This is the DJI way to cheat you.

More Information here: https://nolimitdronez.com/de/mavic-2-upgrade-warning-important-de

frank wrote:

Thanks mate, I see. Thats why the new unit from factory FW 400 can not down to 100. I hope NLD team can solve this issue or their price for 1 license is too expensive. Only use to unlock FCC. Arrghhhh!  😡😡

sute wrote:
I agree the price is just too high for the FCC I hope will soon be able to unlock no Fly Zones