I have purchased a Raspberry Pi 2 along with a Sandisk, class 10, 16 gb microSD card. Installation of OSMC went smoothly with no errors. Later on I proceeded to connecting the RPi2 to HDMI, ethernet, keyboard AND ONLY THEN to the power supply. The result was 2 leds (PWR&ACT) were constantly on (no flickering) and not boot was happening. I unplugged from power, made sure everything was connected ok, then reconnected to power, the RPi2 booted properly. Thinking I probably poorly conncted the RPi2 at first, I just proceeded and used it for a couple of hours, then turned it off (via shutdown in kodi) and went to bed. This morning, I plugged it back in to power, and guess what? same thing again, both leds constantly on and no boot. Again, unplugged from power, plugged back in - and vualla, boots up normally again. To make sure, I shut it down a few times and booted up again, and worked ok.
The only common denominator I can think of is both times this happened the RPi2 was turned off for a long period of time. What am I missing here? SD card is recommended and working fine (if not, how does it boot), everything is connected properly. What could cause this issue? Again, after the "first bad boot" it starts up fine after I re-plug it to power. This happend twice so far, and I couldn't find any answers regarding this issue (couldn't find posts describing ACT as constantly on).