Firmware |
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Firmware You may need to update the firmware on your micro:bit to use features like WebUSB What is firmware?Hardware is the physical part of a micro:bit. Software is made up of the programs you write and run on your micro:bit. Firmware is in the middle: a special kind of software that makes devices function properly. It’s physically stored in the micro:bit’s interface chip and doesn’t change when you write programs or turn your micro:bit off, but it can be updated. The micro:bit will work with the firmware it came with, so you should only update it if you really need to. This might be because you have an older micro:bit and need to update the firmware to use a feature like direct flashing of code from the online editors using WebUSB, which was introduced in firmware version 0243, or when troubleshooting a problem. Checking your firmware versionTo find out what version of the firmware you have on your micro:bit: Plug it in to a computer using the USB cableOpen the DETAILS.TXT file on the MICROBIT driveLook for the number on the line that begins 'Interface Version'. For example, a micro:bit with firmware version 0249 will read:Interface Version: 0249 How to update the firmwareIf you need to update the firmware to access a new feature or troubleshoot a problem, here is how to do it: Disconnect the USB cable and battery pack from the micro:bit.Hold the reset button at the back of the micro:bit and plug the USB lead into the micro:bit and a computer. You should see a drive appear in your file manager called MAINTENANCE (instead of MICROBIT).![]() ![]() ![]() ![]() If you have a micro:bit V1 (without speaker and microphone), all boards use the same firmware. Firmware for V1micro:bit V2If you have a micro:bit V2 (with speaker and microphone), there are two possible versions of the firmware; V2.00 and V2.20/2.21. Please select the firmware appropriate to your board. ![]() In the unlikely event you need to roll-back your micro:bit's firmware to a previous version, you can find information on previous firmware versions in our developer documentation. |
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