since the last firmware from samsung update my tv is driving me nuts.
the tv is stock with 2115 mst firmware.
if any kind of usb storage is connected, the tv is rebooting every 3 minutes reliable.
I have tested serval usb flash drives, freshly formatted with fat32 or ntfs, and several hard disks,
all with the same result. Then i tested a usb mouse which does not cause a reboot.
Can you please help me

I do not have the courage to install custom firmware in this condition, because i fear it will reboot while flashing and brick.
Any suggestions ? Does anyone else have these problems ?
Of course i already did a software reset over the service menu, with no improvement.
Before the last firmware update from samsung everything was working even with usb hdd.
Thank you very much in advantage !