https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/T2i-doesn-t-power-up-unless-ribbon-cable-for-SD-card-board-is/m-p/419925#M100273 <P>SD card sockets are far more robust than CF card sockets but it is still possible for contacts to get bent.&nbsp; Take a close look at the SD socket under a good light and magnifying glass to check for bent contacts or conductive debris.</P><P>Otherwise, I have never been inside a t2i but a common failure items are electrolytic and even more commonly tantalum caps.&nbsp; There is probably one near the interconnect to decouple this board from the rest of the camera and these often fail shorted.&nbsp; So be careful buying any used replacement board because it is likely to have failed also or is likely to fail soon depending upon the age of the board.</P><P>Rodger</P> Fri, 19 May 2023 18:00:52 GMT wq9nsc 2023-05-19T18:00:52Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/T2i-doesn-t-power-up-unless-ribbon-cable-for-SD-card-board-is/m-p/419919#M100272 <P>Hello! Troubleshooting my t2i currently. It won't power up. No LCD, no lights, nothing. I ripped into it and figured out if I leave the ribbon cable for the board that holds the SD card slot disconnected, the camera powers up. But if it's plugged in, no power.&nbsp;</P><P>Sounds like a short, right? Worth throwing a $25 board into it (found some on ebay)? No visible damage to the ribbon cable, the slots it plugs into, or the board itself. Anyone come across this issue?</P><P>&nbsp;</P> Fri, 19 May 2023 17:23:41 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/T2i-doesn-t-power-up-unless-ribbon-cable-for-SD-card-board-is/m-p/419919#M100272 terminem0222 2023-05-19T17:23:41Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/T2i-doesn-t-power-up-unless-ribbon-cable-for-SD-card-board-is/m-p/419925#M100273 <P>SD card sockets are far more robust than CF card sockets but it is still possible for contacts to get bent.&nbsp; Take a close look at the SD socket under a good light and magnifying glass to check for bent contacts or conductive debris.</P><P>Otherwise, I have never been inside a t2i but a common failure items are electrolytic and even more commonly tantalum caps.&nbsp; There is probably one near the interconnect to decouple this board from the rest of the camera and these often fail shorted.&nbsp; So be careful buying any used replacement board because it is likely to have failed also or is likely to fail soon depending upon the age of the board.</P><P>Rodger</P> Fri, 19 May 2023 18:00:52 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/T2i-doesn-t-power-up-unless-ribbon-cable-for-SD-card-board-is/m-p/419925#M100273 wq9nsc 2023-05-19T18:00:52Z