You can emulate your Micro:bit through https://makecode.microbit.org/ or if you have a PC/laptop, you can use a cable to transfer the data, BUT if you have a tablet or a phone you can use the App.
You can download from:
An then you can transfer your code without wire, with Bluetooth directly to your Micro:bit. Here is an example:
If you want to reset your microbit, if you have some problems, here is the unboxing .hex file to upload in your Microbit: https://drive.google.com/file/d/1fRthOaeCGZiTxIwuzK0iI7yVtydJjhyz/view?usp=sharing