Late to this one. Ditto all the lint comments. Clean mine once a month.
Seen this happen twice done by the same person. Looking at the cable after this happens, appears that they keep pulling the cable out by grabbing a handful of cable and yanking. In the process, twisting the connector/on an angle/etc. And ultimately making it such that cannot easily extract the blade portion of the connector (snapped off at the blade). Was able to once get some small probes in to pop the spring that holds the connector in place. Second time, too messed up to dig it out, told them to take it to a repair shop to see if they could dig it out.
Only thing I've ever heard of is someone breaking off the end of the lightning connector on the cord off in the port.
Seen this happen twice done by the same person. Looking at the cable after this happens, appears that they keep pulling the cable out by grabbing a handful of cable and yanking. In the process, twisting the connector/on an angle/etc. And ultimately making it such that cannot easily extract the blade portion of the connector (snapped off at the blade). Was able to once get some small probes in to pop the spring that holds the connector in place. Second time, too messed up to dig it out, told them to take it to a repair shop to see if they could dig it out.