The motherboard is fried/faulty. Screen: The front LCD screen and touch digitizer glass are physically intact and uncracked.
Nintendo Switch Lite Games Console Faulty Spares Repairs
Nintendo Switch Lite Shell Spares Or Repair Parts Missing Not Working
FAULTY Nintendo Switch Lite Blue Console - NO Power Spares Repairs
Nintendo Switch Lite Yellow Console - Spares/Repair
Faulty Nintendo Switch Lite Purple Console For Spares Repairs (No Power)