Originally posted by iDMiS
You say tried, does that mean you downgraded correctly and are now on CFW? Also do some research on yellow light or death/red light of death or whatever it is referred to to see if that is the problem. Although it may be something to do with the hardware itself in which case I have no idea
Well, the E3 flasher began to blink while it was downgrading (i guess after the 5th light). I switched off the console correctly. After that happening it did start as usual. But could not retry the downgrade, had no time

When i started the console next day, it turns off as i said after 5 secs
On my research many said it is because of the Powerbank. But the console worked until that for almost 4 years