today while updating the phone its screen got dead and it not up yet nothing touched but it is not booting ]
it was a security patch update for this month
what to do
Mine did the same damn thing just this morning. Wouldnt power up, wouldnt do anything, screen blank and no sounds.
Found that by holding down the up, down and power all at once got it started again and she's good as gold now. You may need to remove your SD card, I'd tried pulling mine out, but may just be one o them coincidences