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Inspiron 16 7635 2-in-1 Owner's Manual

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System-diagnostic lights

Battery-status light

Indicates the power and battery-charge status.

Solid white — Power adapter is connected and the battery has more than 5 percent charge.

Amber — Computer is running on battery and the battery has less than 5 percent charge.

Off
  • Power adapter is connected, and the battery is fully charged.
  • Computer is running on battery, and the battery has more than 5 percent charge.
  • Computer is in sleep state, hibernation, or turned off.

The battery-status light blinks amber along with beep codes indicating failures.

For example, the battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected.

The following table shows different power and battery-status light patterns and associated problems.

Table 1. System-diagnostic lights
Blinking pattern Problem description Suggested resolution
Amber White
1 1 TPM detection failure

Replace the system board.

1 2 Unrecoverable SPI Flash Failure

Replace the system board.

1 3 Short in hinge cable tripped OCP1

Check if the display cable (EDP) is seated properly or pinched at the hinges. If problem persists, replace either display cable (EDP) or display assembly (LCD).

1 4 Short in hinge cable tripped OCP2

Check if the display cable (EDP) is seated properly or pinched at the hinges. If problem persists, replace either display cable (EDP) or display assembly (LCD)

1 5 EC unable to program i-Fuse

Replace the system board.

1 6 Generic catch-all for ungraceful EC code flow errors Disconnect all power source (AC, battery, coin cell) and drain flea power by pressing and holding down power button for 3~5 seconds.
1 7

Non-RPMC Flash on Boot Guard fused system

Replace the system board.

2 1 CPU failure
  • Run the Dell Support Assist/Dell Diagnostics tool.
  • If problem persists, replace the system board.
2 2 System board failure (included BIOS corruption or ROM error)
  • Flash latest BIOS version
  • If problem persists, replace the system board.
2 3 No memory/RAM detected
  • Confirm that the memory module is installed properly.
  • If problem persists, replace the memory module.
2 4 Memory/RAM failure
  • Reset and swap memory modules among the slots.
  • If problem persists, replace the memory module.
2 5 Invalid memory installed
  • Reset and swap memory modules among the slots.
  • If problem persists, replace the memory module.
2 6 System board/Chipset Error

Replace the system board.

2 7 LCD failure (SBIOS message)

Replace the LCD module.

2 8 LCD failure (EC detection of power rail failure)

Replace the system board.

3 1 CMOS battery failure
  • Reset the main battery connection.
  • If problem persists, replace the main battery.
3 2 PCI or Video card/chip failure

Replace the system board.

3 3 BIOS recovery image not found
  • Flash latest BIOS version
  • If problem persists, replace the system board.
3 4 BIOS recovery image found but invalid
  • Flash latest BIOS version
  • If problem persists, replace the system board.
3 5 Power rail failure

Replace the system board.

3 6 Flash corruption detected by SBIOS.
  • Press power button for over 25 seconds to do RTC reset. If problem persists, replace the system board.
  • Disconnect all power source (AC, battery, coin cell) and drain flea power by pressing and holding down power button 3~5 seconds to ensure all power are drained.
  • Run "BIOS recovery from USB", and the instructions are in the website Dell support.
  • If problem persists, replace the system board.
3 7 Timeout waiting on ME to reply to HECI message.

Replace the system board.

NOTE: Blinking 3-3-3 LEDs on Lock LED (Caps-Lock or Nums-Lock), Power button LED (without Fingerprint reader), and Diagnostic LED indicates failure to provide input during LCD panel test on Dell SupportAssist Pre-boot System Performance Check diagnostics.

Camera status light: Indicates whether the camera is in use.

  • Solid white — Camera is in use.
  • Off — Camera is not in use.

Caps Lock status light: Indicates whether Caps Lock is enabled or disabled.

  • Solid white — Caps Lock enabled.
  • Off — Caps Lock disabled.

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