Orange Pi4 LTS is an open source single-board card computer, a new generation of arm64 development boards, which can run operating systems such as Android 8.1, Ubuntu and Debian. It uses Rockchip RK3399 or RK3399-T SoC, and has 3GB or 4GB LPDDR4 memory, 16GB EMMC Flash (option).
Orange Pi 4 LTS specification: http://www.orangepi.org/Orange%20Pi%204%20LTS/
1) The development board has an onboard eMMC, and the Android 8.1 image is burned by default in it. When you get the development board, you can directly use the image in the eMMC for startup and full-function testing.
2) If you need to use the linux image, you can insert the TF card with the linux image burned into the TF card slot of the Orange Pi development board
3) The development board has an HDMI interface, and the development board can be connected to a TV or HDMI display through an HDMI to HDMI cable
4) Connect the USB mouse and keyboard to control the orange pi development board
5) The development board has an Ethernet port, which can be plugged into a network cable for Internet access
6) Connect a 5V/3A (5V/4A can also) high-quality power adapter
a.Orange Pi 4 LTS cannot be powered through the 5v pin on the 26pin interface
b. Remember not to plug in the 12V power adapter, if the 12V power adapter is plugged in, it will burn out the development board
c. Many unstable phenomena during system startup are basically caused by power supply problems, so a reliable power adapter is very important
1) Then turn on the switch of the power adapter. If everything is normal, the HDMI display can see the startup screen of the system.
2) If you want to view the output information of the system through the debugging serial port, please use the USB to TTL module and DuPont cable to connect the development board to the computer. For the connection method of the serial port, please refer to the section on how to use the debugging serial port.
How to judge whether the system has started normally:
1) If the HDMI display is connected, the judgment method is very simple. As long as the HDMI display normally displays the interface of the system, it means that the system has been started normally;
2) If there is no HDMI display, you can connect the development board to the computer through the serial cable, and check the startup status of the system by debugging the log information output by the serial port. If the serial port output stops at the login interface of the terminal, it means that the system has been started normally;
3) If there is no HDMI display and serial port cable, you can judge the startup status of the system through the two LED lights on the development board. If the red LED light is on and the green LED light is flashing, the system has generally started normally. , If after power-on and waiting for a period of time, only the red LED light is on, or the red and green LED lights are not on, it means that the system has not started normally.
If the system fails to start or cannot enter the login interface normally, please check the following first:
1) Check whether the downloaded image is damaged, which can be judged by calculating the checksum attached to the image;
2) If there is any problem in the process of burning the image to the TF card, you can re-burn the image and test it again;
3) Make sure there is no problem with the power adapter, you can try another one;
4) Make sure that the TF card meets the requirements of the Orange Pi development board. If there is an extra TF card, you can try to change the TF card and then burn the image and test it again;
5) If all of the above are OK, please save the output log of the debugging serial port during the system startup process (preferably in the form of txt text instead of taking pictures), and then report the problem to the customer service.
Amazon: https://www.amazon.com/dp/B09TKNPPJV
AliExpress: https://www.aliexpress.com/item/1005003711871991.html
Orange Pi 4 LTS resource：
http://www.orangepi.org/downloadresources/
Contact email: zhao_steven@263.net