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===1. Flash OS into the micro SD card===
If you use CM4 without emmc, you mush purchase a micro sd memory case, then follow the instructions here, a minimum 16 Gb class 10 memory card is recommended.
Please refer ===Flash OS Image===Due to [https://wwwCM4 has a version with eMMC, micro SD card is optional. If you are using the CM4 with eMMC, you don't need to buy a extra Micro SD card.raspberrypi You flash the OS image into different media according to your own situation.com/documentation/computers/getting-started ====1.html#installing-Flash OS into the-operating-system Official installation tutorial]micro SD card====:A minimum 16 Gb class 10 memory card is recommended.
===2. Flash OS into the eMMC of CM4 (CM4 with eMMC)===You can falsh OS into the eMMC if you use the CM4 '''with eMMC''', :Please refer to [https://www.raspberrypi.com/documentation/computers/getting-started.html#installing-the following step, thus you don't need purchase the Micro SD card-operating-system Official installation tutorial]
1====2. Short OTG PinFlash OS into the eMMC of CM4(Optional)====:You can falsh OS into the eMMC if you use the CM4 '''with eMMC''', refer to the picture belowfollowing step.
[[File:X515-IMG-5890-1.jpg|500px]]Short OTG Pin, refer to the picture below.
2. Connect Type:[[File:X515-C OTG with a TypeIMG-A to Type5890-C cable to your computer1.jpg|500px]]
3:2. Power Connect a computer that will be used to load the device via PWR eMMC to the USB C port on the CM4-M2 board. The computer will provide both power and data to the CM4. (Type-A to Type-C with your 5V Power adaperOTG cable need to be purchased seperately)
4:3. Then rerfer to [https://www.jeffgeerling.com/blog/2020/how-flash-raspberry-pi-os-compute-module-4-emmc-usbboot this tutorial] to flash raspberry pi OS
5:4. Remove the jumper of OTG after flashing is complete, then restart your device;
At this point, Now we think you have successfully flashed the OS to the storage media (mciro sd card or eMMC of CM4). If you attempt to boot now you will not have working USB ports, ssh, or any wireless configuration, so do not remove your SD card, proceed as follows.
This step is optional, you can also enable ssh through :Now when the <code>raspi-config</code> program after the device bootPi starts up SSH will automatically be enabled!
====Preconfigure WiFi :PS: This step is optional, you can also enable ssh through the <code>raspi-config</ Wireless====code> program after the device boot
[[File:X515-IMG-5812.jpg|thumb|NASPi CM4-M2 internal view]]
[[File:X515-IMG-5814.jpg|thumb|Supports M2 SSD]]
[[File:X515-IMG-5896-6Pin-Headers.jpg|thumb|X515]]
==User Manual==
===Installation Video===
For NASPi CM4-2.5 and NASPi CM4-M2: https://youtu.be/lXBK5-GFQ48
{{#ev:youtube|https://youtu.be/lXBK5-GFQ48}}
Please follow the steps below
:'''PS：If you use CM4 with eMMC, then SD card cannot be used.'''
===3. Preconfigure Device for CM4===
We can preconfigure your CM4 device by plugging mico sd via sd reader into a windows computer / Pi. You should see the “boot” volume where we can preconfigure our CM4 to be working right from the start.
====3.1 Enable USB Ports====:When mounted in the IO board the USB ports will not function without making a change to config.txt and adding an overlay.
:Add the following line to config.txt:
dtoverlay=dwc2,dr_mode=host
:After adding this line the two USB ports (as well as the “External USB” header) will function the next time the CM4 boots.
====3.2 Enable SSH====:It's very useful to have SSH enabled when working with the Compute Module 4. It is enabled simply by creating an empty file named:
touch ssh
:in the root folder of the “boot” volume (the top-most folder of the drive where start4x.elf, fixup.dat and those files are located) Now when the Pi starts up SSH will automatically be enabled! PS:
====3.3 Preconfigure WiFi / Wireless (Optional)====: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. In fact, you can setup your wifi after you boot up.
:Create a new file named wpa-supplicant.conf that contains the following:
<pre>
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
Then you can insert your micro sd card into the device & power on it.
===Power management & 4. Installing script===After the device is reboot, install the following script to get safe and software shutdown script installationfunction: refer to [[XScript]] ===5. Enable OLED display===Refer to [[XScriptHow to enable OLED display]]
===How to flash 6. Flash OS onto 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=Power management & safe shutdown script installation=<div class="toccolours mw-collapsible mw-collapsed"><div style="font-weight:bold;line-height:1.0;">Refer Q: How to [[XScript]]enable the POE option?</div><div class===How "mw-collapsible-content">A. The POE header on X515/X510 is reserved to enable OLED display===be compatible with the official POE+ HAT. But we don't know if the case will be compatible with the installation of official POE+ HAT.</div>Refer to [[How to enable OLED display]]</div>
==FAQVideo==Thanks for the video from leepspvideo!https://youtu.be/tgSNGbbFk1c{{#ev:youtube|https://youtu.be/tgSNGbbFk1c}}