Some Mac's (when they power down their USB port) require a restart for the USB port to recover, in this case, please try:Īlso, try your micro:bit in a different computer, just in case your computer has powered down its USB ports for some reason. This can happen if you short out your micro:bit when running from USB and plugging in electronic components. If the yellow LED does not light up, it is likely that either your USB lead has developed a fault, or your computer might have powered down the USB port. You will need to use a USB lead that transfers data for example a lead used for smartphones or a digital cameras. * Some USB leads are 'power only' leads (especially poor quality leads or those designed to charge mobile phones). On a Mac it appears as a new drive under Devices. On computers running Windows, MICROBIT appears as a drive under Devices and drives. It should appear as a MICROBIT drive and the yellow system LED on the back should light up. Plug the micro:bit into your computer with a * USB lead capable of transferring power and data. If your micro:bit appears to have developed a fault, this article works through some potential problems and provides steps to try to bring the device back to life. Modified on: Wed, 26 Oct, 2022 at 5:53 PM Try these quick steps to recover your Dell computer from a power issue.Solution home Hardware (micro:bit device) micro:bit device Troubleshooting the BBC micro:bit The display is blank or black, the computer does not start, and there is no indication of turn on the computer.Power LED is off and does not respond when you try to turn on the computer.There is no indication of the computer turning on (all the LEDs are off). When you press the power button, the Dell computer does not turn on. Identify the symptoms and troubleshoot No Power To learn more, see the Dell knowledge base article How to run the Online Diagnostics and use the Diagnostics for Troubleshooting. If the Dell computer can boot into Windows and has an active Internet connection, run the online diagnostic test from SupportAssist.To learn more, see the Dell knowledge base article How to Run a Preboot Diagnostic Test on a Dell Computer. If the Dell computer cannot boot into Windows, run the preboot diagnostic test.This helps Dell Technical Support to identify which hardware component is causing the issue and provide repair options. NOTE: If the diagnostic test fails, make a note of the error code and validation code that the diagnostic test provides. It is called the SupportAssist Pre Boot System Assessment or Enhanced Pre-Boot System Assessment (ePSA). Dell laptops, desktops, all-in-ones, and Windows-based tablets have an integrated diagnostic test. Running a hardware diagnostic test helps you identify potential hardware failure. If your Dell computer is not able to turn on, follow the troubleshooting guide for no power symptom in the table below.If your Dell computer can turn on but is unable to boot into Windows, identify the symptoms and follow the appropriate troubleshooting guide.
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