samsung s4 mini stuck in boot loop

Hi,

Two days ago my Samsung galaxy s4 mini (GT-i9195) stop working. Nothing respond: no recovery mode, no download mode and it connect as qhsusb_dload on my computer.

Next day I tried again and it kinda work. It's stuck in a bootloop. Logo appear 10s and reboot.

I can't access recovery mode but I've access to download mode.

I've tried to flash the firmware with odin but that didn't work since it didn't go to recovery mode at the end.

I know little in informatics.

Do you have any idea?

And sorry for my english.