RogerWS
Active member
Hi,
Despite the fact that the 5D MK3 can run on third party battery, once you have bypassed the error message, it does refuse to update to the new firmware 1.2.3 when equipped with such battery.
I had some bad feelings this morning when I saw the black screen, no message, nothing after having clicked OK to update 1.2.1. Usually, after that, the camera shows up a new windows where you select the new firmware. Here nothing happened and the screen left dark.
I had to turn the camera off, retire the third party battery and put in the genuine Canon battery.
After that everything worked well and I could update normally.
Be careful. USE A GENUINE BATTERY BEFORE ATTEMPTING TO UPDATE TO 1.2.3
Despite the fact that the 5D MK3 can run on third party battery, once you have bypassed the error message, it does refuse to update to the new firmware 1.2.3 when equipped with such battery.
I had some bad feelings this morning when I saw the black screen, no message, nothing after having clicked OK to update 1.2.1. Usually, after that, the camera shows up a new windows where you select the new firmware. Here nothing happened and the screen left dark.
I had to turn the camera off, retire the third party battery and put in the genuine Canon battery.
After that everything worked well and I could update normally.
Be careful. USE A GENUINE BATTERY BEFORE ATTEMPTING TO UPDATE TO 1.2.3