Dell Latitude 5421 - Removing and Installing Components; Recommended Tools

Rear
1. microSIM-card tray (optional)
Battery charge and status LED
Table 2. Battery charge and status LED Indicator
Power Source LED Behavior computer Power State Battery Charge Level
AC Adapter Off S0 - S5 Fully Charged
AC Adapter Solid White S0 - S5 < Fully Charged
Battery Off S0 - S5 11-100%
Battery Solid Amber (590+/-3 nm) S0 - S5 < 10%
● S0 (ON) - Computer is turned on.
● S4 (Hibernate) - The computer consumes the least power compared to all other sleep states. The computer is almost at an
OFF state, expect for a trickle power. The context data is written to hard drive.
● S5 (OFF) - The computer is in a shutdown state.
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