I updated my GFX lenses today in this order:
GFUP0002.DAT GF32-64mmF4 R LM WR Firmware Update Ver.1.10
GFUP0003.DAT GF120mmF4 R LM OIS WR Macro Firmware Update Ver.1.10
GFUP0004.DAT GF110mmF2 R LM WR Firmware Update Ver.1.10
GFUP0005.DAT GF23mmF4 R LM WR Firmware Update Ver.1.10
GFUP0006.DAT GF45mmF2.8 R WR Firmware Update Ver.1.10
GFUP0007.DAT GF250mmF4 R LM OIS WR Firmware Update Ver.1.10
Everything now seems to be working just fine.
However there was temporarily a nasty surprise! :shocked:
After completing updating the GF250 I tried taking some pictures. Surprise, surprise, ... I could hear pretty loud the lens focussing and image stabilizing activity. Focusing seemed occasionally pretty sketchy. I switched my 50S camera off and on. Sometimes it worked fine, then again it did not. I finally concluded that the camera/lens system did not behave according to the latest firmware version 1.10.
I then turned OIS on the lens off, took a few shots, switched it back on, took more shots, turned the 50S off and took the lens off.
After reattaching the lens the issue seems resolved. All my lenses are now working just fine, including the two with OIS on. :thumbs:
I believe switching OIS off and on did the trick. YMMV. :grin: