About X15 Smart Version android OS firmware upgrade
X20 android projector support OTA online update Android firmware. Every time we update the firmware, after uploading to the cloud server, K45 Smart Version will prompt to update, Operation video guide: https://youtu.be/zC4GxpWZMeQ
It can also be upgraded via U disk
Operation method 1:
Note: the upgrade process must not be interrupted.
Operation method 2:(For users who cannot upgrade with the first method.)
Note: the upgrade process must not be interrupted.
Firmware upgrade operation guide video: https://youtu.be/q3iE25mslrY
Firmware version: 2023_1216
About X15 Smart Version Wifi-display Function
With the development of science and technology, in the current Bluetooth function, it is no longer used for Bluetooth to transfer files. The role of Bluetooth is only to transmit sound. The Bluetooth file transfer function has been replaced by APP.
Wifi, Bluetooth, wifi-display (airplay, Miracast, DLNA) are all different functions. The effects are different.
wifi-display function, the projector displays the image and sound of the mobile phone screen through the mirroring function of the smartphone. This is not achieved using the Bluetooth function. It is achieved through the screen mirroring function that comes with the phone.
Operation instruction video connection: https://youtu.be/XyWQC5pPFOM
Operation instruction video connection: https://youtu.be/ASYcV__UrvA
Note: Not all Android smartphones support the screen mirroring function. For smartphones that support screen mirroring, there are options similar to this in the “Settings” or “More Functions” options of the smartphone, for example: “Screen mirroing”, “Wifi-display”, “multi-screen”, “screen projection”, “play to”, “media output”, etc.
If the projector’s pre-installed screen mirroring app is not compatible with your Android smartphone, you can also download and install Airscreen, happycast and other apps that support wifi-display on the projector.
Tips:
Some video apps with copyright protection cannot support wireless projection from other devices to the projector. For example, Netflix, iTunes Movie, Google Movie, Amazon Prime do not support this function on some smartphone and computers. All Android system projectors on the market are the same.
X15 Projector Operation Guidance Video
Operation instruction video connection: https://youtu.be/ALF2CVYHOJ8
X15 Smart Version Projector Operation Guidance Video
Operation instruction video connection: https://
On the computer desktop, you can set 3 display modes
Operation instruction video connection: https://youtu.be/YCXMakiDq10
Operation instruction video connection: https://youtu.be/oEA-2HAtVMQ
Operation instruction video connection: https://youtu.be/0eJP_IWE_rk
Operation instruction video connection: https://youtu.be/qWhRzVmYxP8
Operation instruction video connection: https://youtu.be/LzGaxHaAKLY
Operation instruction video connection: https://youtu.be/xjNnnIlCqYk
Operation instruction video connection:
enable automatic keystone correction: https://youtu.be/u809iqlJymU
manual corner keystone correction: https://youtu.be/6Ivvesz9aAo
manual vertical and horizontal keystone correction: https://youtu.be/GJVb9p9tpJQ
Operation instruction video connection: https://youtu.be/RQ49KyTW65o
Operation instruction video connection: https://youtu.be/2wESdGOH0HE
Operation instruction video connection: https://
Operation instruction video connection: https://youtu.be/XyWQC5pPFOM
Operation instruction video connection: https://youtu.be/ASYcV__UrvA
Turn off Dolby in the setting sound of Fire TV stick 4K.
Step:”setting”—-“display&Sound”—“Audio”—“Dolby digital output”—“Dolby digital plus OFF”, Turn off Dolby,Do it a few times,Confirm whether Dolby is successfully turned off.
Tips: Some sources can work normally without turning off Dolby and setting them to automatic mode. If there is still no sound in automatic mode, you must turn off Dolby.
Operation video guide:https://youtu.be/2S77xzLHC84
X15 Series Projector Maintenance Guide
1.1 The projector comes standard with a 2.4G wireless remote control. If the remote control does not work, you need to re-operate the remote control to pair with the projector.
The operation method is to take out the battery of the remote control, start the projector, wait for the projector to turn on, then move the remote control close to the projector, and then install the battery of the remote control, and the remote control will re-pair with the projector.
1.2 One remote control can only correspond to one projector, and cannot be used for two K45s at the same time.
1.3 If the pairing is unsuccessful, replace a remote control and try again.
1.4 If the replacement of the remote control still fails, it may be that the cable between the remote control receiver and the motherboard is loose. Reconnect the cable between the receiver and the motherboard.
1.5 If there is still a problem, there may be a problem with the remote control receiving circuit board or the main board. Just replace the corresponding parts. There is a disassembly video guide below.
Fault phenomenon: If the projector has been used for a long time, the projector often shuts down automatically, or the projector screen slowly turns yellow, there may be too much dust on the filter screen. Remember to clean the dust on the filter screen regularly to ensure the normal heat dissipation of the projector.
Operation guide video URL: https://
Fault phenomenon: If you find black dust-like dots on the projection screen, it means that there is dust or foreign matter on the LCD surface inside the projector, which needs to be disassembled and cleaned up.
Operation guide video URL: https://youtu.be/_Zrwkbam7T8
Fault phenomenon: After the projector presses the power button, you can hear that the fan inside the projector is working normally, but there is no light coming out of the lens at all, maybe the LED is not working.
First, disassemble the projector to check whether the cables on the power board are connected properly. If the cables on the power board are connected normally and there is no looseness, the projector still does not work, and a new power board needs to be replaced. If it is still not normal, you need to replace the LED. If the lens still has no light after replacing the LED, you need to replace the motherboard.
Usually replace the power board projector is normal. LED damage is generally caused by high voltage breakdown of the projector’s LED due to lightning strikes or unstable household power grids.
Operation guide video URL: https://youtu.be/-HN80NSPqBU
Fault phenomenon: The power indicator on the top cover of the projector is not on, or there is no light coming out from the inside of the projector lens (that is, the LED does not work), it may be a problem with the power board, and the power board needs to be replaced
Operation guide video URL: https://youtu.be/44w0QuoQKE4
Fault phenomenon: If you press and hold the “F+” and “F-” buttons of the remote control, the projector lens cannot move back and forth, that is, it cannot be focused. It may be that the focusing motor is not working, or the circuit board connected to the focusing motor is not working. Replace both parts.
Operation guide video URL: https://youtu.be/UnN0HkUl7FA
Operation guide video URL: https://youtu.be/iWMLFPM-xew
Operation guide video URL: https://youtu.be/xYP4Unm0LnE
Fault phenomenon: If the picture image is abnormal, there are colored streaks, or there are cracks, black blocks that will not recover after the projector cools down, etc., the LCD may be damaged and the LCD needs to be replaced.
Disassemble the projector, use the mobile phone to shoot the text on the LCD cable for your after-sales customer service, the customer service will send it to you according to the corresponding LCD arrangement, and the projector system firmware used for different LCDs is different. If a different LCD is replaced, it will cause the projected image to display abnormally. At this time, the customer service needs to send you the system firmware corresponding to the LCD you received, copy the program to the U disk and directory, and insert it into the USB of the projector. Then connect the projector to the power supply, wait for a few seconds, then press and hold the power button for 10 seconds, then release the button, let the projector update the program automatically, wait for 10 minutes, if the projector has an image, it means it is normal.
Operation guide video URL: https://youtu.be/JLCpWNa_kkQ
Solution:
Replacing the remote control receiver inside the projector, operation guide video URL: https://youtu.be/6U5sPlodux4