![Received an error code 01 on a 24-105mm I USM F.4, solutions? Already cleaned contacts too : r/canon Received an error code 01 on a 24-105mm I USM F.4, solutions? Already cleaned contacts too : r/canon](https://i.redd.it/sa3ae5d3hrr91.jpg)
Received an error code 01 on a 24-105mm I USM F.4, solutions? Already cleaned contacts too : r/canon
![Any idea how to fix this? It's happening with my sigma 75-300mm lenses I haven't used it in over a year. I've cleaned it with a normal cloth by nothing is helping? : Any idea how to fix this? It's happening with my sigma 75-300mm lenses I haven't used it in over a year. I've cleaned it with a normal cloth by nothing is helping? :](https://preview.redd.it/48i1il42g2551.jpg?auto=webp&s=2905285506e2389b6cc123ea59b65e2cdcc2a0ae)
Any idea how to fix this? It's happening with my sigma 75-300mm lenses I haven't used it in over a year. I've cleaned it with a normal cloth by nothing is helping? :
![Canon EF 24-70mm 2.8L II USM Lens Communication Error 1 Fix Replace PDU Assembly by Works Perfect - YouTube Canon EF 24-70mm 2.8L II USM Lens Communication Error 1 Fix Replace PDU Assembly by Works Perfect - YouTube](https://i.ytimg.com/vi/dClmdxG20hI/maxresdefault.jpg)
Canon EF 24-70mm 2.8L II USM Lens Communication Error 1 Fix Replace PDU Assembly by Works Perfect - YouTube
![How to fix Err 01 communications between the camera and lens is faulty | Emergency solution | - YouTube How to fix Err 01 communications between the camera and lens is faulty | Emergency solution | - YouTube](https://i.ytimg.com/vi/X2R3XH2GB38/maxresdefault.jpg)
How to fix Err 01 communications between the camera and lens is faulty | Emergency solution | - YouTube
![Error 01 , communication between camera and lens faulty. Clean lens contact” | DIGITAL CANON repair blog Error 01 , communication between camera and lens faulty. Clean lens contact” | DIGITAL CANON repair blog](https://canonrepair.files.wordpress.com/2015/04/wpid-p_20150329_1210231.jpg)