Diagnostics; Battery Status Lights; Wi-Fi Power Cycle - Dell Latitude 3300 Owner's Manual

This chapter details the built in troubleshooting features to diagnose the Dell systems. It also lists the invoking instructions along with
related information for each diagnostics method.
Topics:
•

Battery Status Lights

•

Wi-Fi power cycle

• Diagnostic LEDs
• M-BIST
• Self-Heal
• BIOS recovery
• LCD Built-in Self Test
• ePSA Diagnostics
Battery Status Lights
If the computer is connected to an electrical outlet, the battery light operates as follows:
Alternately blinking An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop.
amber light and
green light
Alternately blinking Temporary battery failure with AC adapter present.
amber light with
steady green light
Constantly blinking Fatal battery failure with AC adapter present.
amber light
Light off Battery in full charge mode with AC adapter present.
green light on Battery in charge mode with AC adapter present.
Wi-Fi power cycle
If your computer is unable to access the internet due to Wi-Fi connectivity issues a Wi-Fi power cycle procedure may be performed. The
following procedure provides the instructions on how to conduct a Wi-Fi power cycle:
NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device.
1 Turn off your computer.
2 Turn off the modem.
3 Turn off the wireless router.
4 Wait for 30 seconds.
5 Turn on the wireless router.
6 Turn on the modem.
7 Turn on your computer.
7

Diagnostics

Diagnostics 143