u/Mammoth-Middle-7853

hi all just wondering what might have happened. so i painted my room, unscrewed my light slightly to paint around it , then once done screwed it back on ( like 5 turns) then BANG sparks fly out the screw (luckily had insulated screw driver) and breaker trips. so i go and turn off every rcd switch and mcb and main power breaker. turns out i nicked the earth wire slightly. patched it up with few layers of tape and put it all back together. works yay but then 5 mins later it went off , only my light and breaker didnt trip. ive tried new bulb and new switch since and still nothing... any ideas would be great.