I boot the raspberry pi correctly, the red light is on (solid light) and the green light blinks. After a while, (it can be few hours or a couple of days) the green light stays solid and it does not blink anymore.
No data was recorded during the period of solid green light. I re-boot the raspberry pi and it works again: solid red light and the green light blinks.
I read some forums, someone says that the SD card may be corrupted, I should have to change it, but noone has this specific problem and on top of that with this type of raspberry pi.
Is anyone can help me?