I updated the camera firmware on L1 & L10 to Ver. 2.1 and i managed to update the L-X025 lens firmware.
When I was about to update the L-E014050 & L-RS014-150 lenses - and I did the same procedure as mentioned on Panasonics homepage, as I did, when I updated the camera, where the L-X025 was mounted, it's not updating.

Can someone here help me out?

Look forward to receive your feedback.

Regards René