Apple LM4FS1EH
Component appearing in 1 repair guide(s).

Appears in 1 guide(s)

820-3115
ReferenceSMC (U5020)
PartApple LM4FS1EH (ARM Cortex-M)
FunctionSystem Management Controller
RailsControls the entire boot sequence
⚠ Failure
Blinking diag LED, erratic behavior. Reprogrammable if firmware is corrupted.