Switch will not start up help

[Jayofcastleford]

I got a second hand switch a few months ago and I hacked it and put loads games on the 256gb micro sd.
Then turned it off packed it away cause it's for my daughter xmas.
Came to turn iron today after she unwrapped it and wouldn't turn on.
Tried turn it on when its plugged in with ac adaptor and it gets to nintendo logo then off again.
Imusing a rcm loader dongle and a jig and running latest version atmospher
Anyone any help I feel awful for my child
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When on charge the battery indicator comes on and off every 5 seconds or so and same with green light when its docked

 

[DorianX]

you need to leave the NS plugged in for at least 3 hours. IF auto RMC was on and your battery died it wont charge as fast with a dead battery.
after is charged for minimun 3 hours on the wall outlet, plug it to your computer + insert your jig + hold power button and volume down for a few seconds it should be detected by tegraRCM