Green LED blinks in a specific pattern

Written By: Admin MedEasy
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Difficulty

Moderate

Steps

3

Time Required

Suggest a time??

Sections

1

Flags

0

Introduction

  • 1 Flash: Make sure you are using the provided SD card, or another with a capacity larger than 4Gb; a 2Gb card won't work.
  • 2 Flashes: The SD Card cannot be read.

  1. In this scenario, the short-term solution would be to use another SD card from the others kits.

    • In this scenario, the short-term solution would be to use another SD card from the others kits.

    • If you have time, inform the MedEasy Team. We will guide you through the process of formatting the SD card and flashing Raspbian with Pi Installer from Terminal.

    • Beware! All the information stored in the SD Card has been lost. You should have made a backup stored in the cloud; you may retrieve this later using this guide.

    Edit

  2. You may download the SD Formatter software from this link for both Mac and Windows. You may download the Pi SD Installer from this link.

    • You may download the SD Formatter software from this link for both Mac and Windows.

    • You may download the Pi SD Installer from this link.

    • Download the content as indicated, format the SD card following the instructions. Then, execute the install script as indicated.

    Edit

  3. If the system still doesn't work, please let the MedEasy Team know how many times does the green light flash now:

    • If the system still doesn't work, please let the MedEasy Team know how many times does the green light flash now:

    • 3 flashes: start.elf not found

    • 4 flashes: start.elf not launched

    • If start.elf won't launch, it may be corrupt. It may also point to a defective SD-card holder. Do let the team know if you suspect this could be the problem

    • 7 flashes: kernel.img not found

    • 8 flashes: SDRAM not recognised. You need newer bootcode.bin/start.elf firmware. Let the team know about this.

    Edit
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Admin MedEasy

Member since: 04/24/2017

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