memory card slot jammed

If you don't mind damaging your device, you can force it out. I however, would not recommend that. The m8 is easier to disassemble than it's predecessor, so I would say, depending on where exactly the damage is, purchase a new sd holder, and if your housing is compromised, purchase that as well, and swap the housing. If repair is not possible, and the device is owned by you, sell it as, someone can do that repair and you can purchase a new device. Otherwise, you will be forced to use the 32 gb of internal storage. That's not so bad though.