topic Re: error code 01 in EOS DSLR & Mirrorless Cameras https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/error-code-01/m-p/219#M2 <BLOCKQUOTE><HR /><a href="https://community.usa.canon.com/t5/user/viewprofilepage/user-id/99">@Milly</a> wrote:<BR /><P>is there any other issues other than lens to camera communication which can cause the err01 code to appear</P><P>as I have cleaned the contacts and it works fine for a while then plays up and locks me out. The other lens there is no problem</P><HR /></BLOCKQUOTE><P>If it's only one lens and it re-occurs after cleaning the lens contacts then it may be an internal lens issue. Perhaps with a loose ribbon cable.</P><P>&nbsp;</P><P>You don't mention the lens but if you do searches for err01 the 24-105 seems to be a lens where this occurs on occasion.</P><P>&nbsp;</P><P>Canon service may be needed.</P> Wed, 07 Nov 2012 19:35:53 GMT trulandphoto 2012-11-07T19:35:53Z error code 01 https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/error-code-01/m-p/197#M1 <P>is there any other issues other than lens to camera communication which can cause the err01 code to appear</P><P>as I have cleaned the contacts and it works fine for a while then plays up and locks me out. The other lens there is no problem</P> Tue, 06 Nov 2012 21:56:32 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/error-code-01/m-p/197#M1 Milly 2012-11-06T21:56:32Z Re: error code 01 https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/error-code-01/m-p/219#M2 <BLOCKQUOTE><HR /><a href="https://community.usa.canon.com/t5/user/viewprofilepage/user-id/99">@Milly</a> wrote:<BR /><P>is there any other issues other than lens to camera communication which can cause the err01 code to appear</P><P>as I have cleaned the contacts and it works fine for a while then plays up and locks me out. The other lens there is no problem</P><HR /></BLOCKQUOTE><P>If it's only one lens and it re-occurs after cleaning the lens contacts then it may be an internal lens issue. Perhaps with a loose ribbon cable.</P><P>&nbsp;</P><P>You don't mention the lens but if you do searches for err01 the 24-105 seems to be a lens where this occurs on occasion.</P><P>&nbsp;</P><P>Canon service may be needed.</P> Wed, 07 Nov 2012 19:35:53 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/error-code-01/m-p/219#M2 trulandphoto 2012-11-07T19:35:53Z