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====Preconfigure WiFi / Wireless====
You can also preconfigure the Compute Module 4 (and any Pi) by creating wpa-supplicant.conf at the base of the “boot” volume like we did with “ssh” file.
Then you can insert your micro sd card into the device & power on it.
===4. Installing script===
After the device is reboot, install the following script to get safe and software shutdown function: refer to [[XScript]]
===Power management & safe shutdown script installation5. Enable OLED display===Refer to [[XScriptHow to enable OLED display]]
===46. Flash OS into the NVME SSD（Optional）===
Load OS into ssd and you can get extremely fast running speed, you need to refer to the above steps to flash the OS into the Micro SD card firstly, then insrt the Micro sd card, turn on the device, and then click '''Applications''' =>'''Accessories''' =>'''SD Card Copier''', run the '''SD Card Copier''' program, and copy the OS to the ssd as shown in the figure below.
Click '''Start''' to run. Then shut down, unplug the SD card, and restart the device.
==FAQ==