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Vostro 15 3510 Service Manual

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System diagnostic lights

Power and battery-status light

Indicates the power and battery-charge status.

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

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

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

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

For example, the power and 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. LED codesLED light codes for component issues/failure in the product.
Diagnostic light codes Problem description Recommended solutions
1,1 TPM detection 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).
2,1 Processor failure Run the Intel CPU diagnostics tools. If problem persists, replace the system board.
2,2 System board: BIOS or ROM (Read-Only Memory) failure Flash latest BIOS version. If problem persists, replace the system board.
2,3 No memory or RAM (Random-Access Memory) detected Confirm that the memory module is installed properly. If problem persists, replace the memory module.
2,4 Memory or RAM (Random-Access Memory) 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 or chipset error Flash latest BIOS version. If problem persists, replace the system board.
2,7 LCD failure - SBIOS message Replace display cable (EDP) if possible, otherwise replace the display assembly (LCD).
2,8 LCD failure - EC detection of power rail failure Replace the system board.
3,1 Coin-cell battery failure Reset the CMOS battery connection. If problem persists, replace the RTC battery.
3,2 PCI, video card/chip failure Replace the system board.
3,3 Recovery image not found Flash latest BIOS version. If problem persists, replace the system board.
3,4 Recovery image found but invalid Flash latest BIOS version. If problem persists, replace the system board.
3,5 Power-rail failure EC ran into power sequencing failure. If problem persists, replace the system board.
3,6 System BIOS Flash incomplete Flash corruption detected by SBIOS. If problem persists, replace the system board.
3,7 Management Engine (ME) error Timeout waiting on ME to reply to HECI message. If problem persists, replace the system board.
4,1 Memory DIMM power rail failure Replace the system board.

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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