If there is a problem with the projector’s Android firmware ,
Firmware upgrade user guide video: https://youtu.be/9-VHOo2GeXs
Use this firmware when the serial number is BYDZ****X2GGTV0********~BYDZ****X13GGTV0*********
Firmware version: Version number X.13TY2024112217en6
Use this firmware when the serial number is BYDZ****X24GGTV0*********
Firmware version: Version number:X.24G2024120916en6
Note: Due to the continuous upgrading and improvement of products, the hardware motherboard of the projector will also be continuously upgraded, and the Android system firmware corresponding to different motherboards is also different. You can download the following corresponding firmware according to the serial number at the bottom of the projector to update the projector firmware . Note: Flashing the wrong firmware will result in the projector not working. If anything is unclear, please contact customer service and provide the serial number.

Tips: 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 The Bluetooth file transfer function has been replaced by APP.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.
Many buyers often misunderstand the function of Bluetooth. For example: the following 3 types are different functions.
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 video guide:https://youtu.be/bA0s_AnpyIY
Option 1:
1.Chromecast bulin-in function only works when you use Android TV system
3.Go to the projector “settings”–select “Device Preferences”–go to “Chromecast built-in”–go to “Let others control your cast media”–select “Always”
Option 2:
Operation video guide:https://youtu.be/LRqc3nrYhVY
Step:
1.Chromecast bulin-in function only works when you use Android TV system
3.Go to the projector “settings”–select “Device Preferences”–go to “Chromecast built-in”–go to “Let others control your cast media”–select “Always”
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.
Operation video guide:https://youtu.be/SHO8pQLvSig
Step:
About 3D
Read U disk through USB interface, play 3D video with MX player, support side by side, top and bottom shutter 3D video.
Among them, videos in H265 and AVS formats can support up to 4K/30HZ.
Other AVI, MP4 and other formats of video can support up to 1080p/60Hz, but do not support 4K.
Operation video guide: https://youtu.be/8U-_KG9Vgtc
Operation video guide: https://youtu.be/jNhvCg1rnvc
Operation video guide: https://youtu.be/GaRWeSYqRf0
Operation video guide: https://youtu.be/xuU7dc5hG6c
Operation video guide:https://youtu.be/aXRS_RKeBLM
Operation video guide:https://youtu.be/wq8R9GcpOLc
Operation video guide:https://youtu.be/-XASh8DTmUA
Operation video guide:https://youtu.be/Qz3Heo-x0i4
Operation video guide:https://youtu.be/XT4DnYK8L8o
Operation video guide:https://youtu.be/mleZ5zdWgus
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
Operation instruction video: https://youtu.be/q0cmRUCevtM
Operation video guide:https://youtu.be/LCIPCGr77sI
Step:
Step:
Operation video guide:https://youtu.be/XZI_YmLU5y0
Step:
Operation video guide:https://youtu.be/7BRHnutzNW8
Step:
Operation video guide:https://youtu.be/P3bdyDh4Oao
Operation video guide:https://youtu.be/XiiAsWhquNU
Operation video guide:https://youtu.be/Ums-S1FjWxs
Operation video guide:https://youtu.be/4SFWGQCLrdk
Operation video guide:https://youtu.be/o_OjX43VUoU
How to solve the problem of remote control not working?
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 If the pairing is unsuccessful, replace a remote control and try again.
1.3 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.
1.4 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.
Operation instruction video connection: https://youtu.be/nwPlKOXTOb4
Fault phenomenon:
Focus sensor abnormality: Autofocus is unclear, but the F+ and F- buttons on the remote control adjust the image normally.
Infrared sensor abnormality: The infrared remote control is unresponsive. If the remote control is functioning properly, there is no response when pointing it at the device.
Operation instruction video connection: https://youtu.be/N4v7UHFgFNo
Fault phenomenon:
After clicking on Google TV, the screen shows no signal
Operation instruction video connection: https://youtu.be/X5xyXKj6wiY
How to remove the motherboard from the Vevshao V80 projector.
Operation instruction video connection: https://youtu.be/secy4PphuP0
How to replace the temperature controller from the Vevshao V80 projector?
Operation instruction video connection: https://youtu.be/uo4llFN2aIs
How to replace the fan assembly from the Vevshao V80 projector?
Operation instruction video connection: https://youtu.be/UVc_Q5VoBE0
How to remove the optical engine and heat dissipation copper pipes from the Vevshao V80 projector?
Fault phenomenon:
Operation instruction video connection: https://youtu.be/d7n_5bWTv8w
How to remove the focus motor from the Vevshao V80 projector?
Operation instruction video connection: https://youtu.be/s-NPn–neo8
Vevshao V80 projector complete disassembly video?
Operation instruction video connection: https://youtu.be/uQFxNCy-9z8