Firmware update loop

Hi, one of my tentacles is stuck at the “activating Firmware Update Mode…”

It says “it can take some time to install” but now is over 30minutes i’m waiting… giving that the other one took a second to process and less than a minute to do the firmware update i’m guessing there’s something wrong going on, please help me.

Thanks

TF

P.s. my machines are macbook pro running 10.9.5 and a pc with Win7 Pro 64bit