Firmware Downgrade

atonyb1

New member
Hello, I recently upgraded the firmware on my camera to 1.11
After the upgrade, my Sigma lens stopped autofocusing. I placed the lens on another camera and it works perfectly. My question, is it possible to revert to the 1.10 firmware version without damaging the camera. Thank you
 

Bikerbrent

Senior Member
It is my understanding that you can not revert your camera to a previous version of the firmware. Unless it is a Sigma lens with docking capability, you will have to send it into Sigma for them to update the lens firmware.
 

Ironwood

Senior Member
It is my understanding that you can not revert your camera to a previous version of the firmware. Unless it is a Sigma lens with docking capability, you will have to send it into Sigma for them to update the lens firmware.
I always thought the same as well, but a few months ago there was someone on here that said they did revert back to the old version.
 

hark

Administrator
Staff member
Super Mod
Contributor
I don't have an answer for you, but when looking online to see what people have asked, I came across a compatibility discussion. It says Tamron and Tokina pay licensing fees to Nikon while Sigma doesn't. Supposedly that's why Sigma owners keep running into problems with their lenses not being compatible. And that's why Sigma can't freely allow the firmware to be obtained online. It has to come through their dock.

I always preferred Sigma over the other 3rd party lenses, but if this is the case, it's making me rethink my opinion on Sigma.

https://photo.stackexchange.com/questions/47642/why-do-3rd-party-lenses-have-compatibility-issues
 

atonyb1

New member
Hello, I recently upgraded the firmware on my camera to 1.11
After the upgrade, my Sigma lens stopped autofocusing. I placed the lens on another camera and it works perfectly. My question, is it possible to revert to the 1.10 firmware version without damaging the camera. Thank you

I thank everyone for their suggestions. However, I was able to solve by problem two ways. First, I was able to downgrade the firmware on my camera. Downgrading was the same as upgrading, the same procedure in involved. Just copy the previous version of firmware to the SD card. Insert the card in the camera, go to your menu under firmware update, and install. Works great. Second, Sigma said that they will upgrade the firmware for my lens free of charge. All I have to do is pay for shipping. Instead, I opted to purchase a USB Dock from Sigma so that I would be able to upgrade the firmware for my lens myself in the future. Again, think you for your assistance.
 
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