I bought a new MicroSD and installed Ubuntu MATE. Everything is working fine now.

mahjongg wrote:sounds like your MicrSD card developed a short inside.

Yeah :/ but It seemed to work correctly on my computer before I tried it in the Raspberry. Do you think the Raspberry damaged the microSD?

runboy93 wrote:You saw flames and smoke? That sounds quite bad :/

The microSD was very hot and there was smoke without flames.

I bought a Raspberry Pi 3 and followed instructions to install an OS. When I inserted the SD card and powered the Raspberry the SD card slot started heating and burning. My SD card now does not work and I don't know if the Raspberry is damaged.
Any of you know why could this have happened?