Chosen Solution

Hi everyone, my Gopro 3+ black went crazy and even i tried all supposed fixes on this issue, i have no succes. Tried format SD card Tried various SD cards Tried hard reset of device Unfortunately with no luck :( If any of you guys know how to fix it, or have any ideas about it, I will very appreciate every helpful hand! Thank you very much in advice!

Try formatting the card. Plenty of vids on youtube. If that doesn’t work it could be a bad expansion port like I have currently.