A24 android projector support OTA online update Android firmware. Every time we update the firmware, after uploading to the cloud server, A24 will prompt to update, Operation video guide:https://youtu.be/FH3W5ENwqdA
It can also be upgraded via U disk
Step:
Note: the upgrade process must not be interrupted.
Firmware upgrade operation guide video:
Firmware download link:

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/pTpGgY8pZsU
Operation instruction video connection:https://youtu.be/GvPwHOPKnuc
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.
Operation instruction video connection:https://youtu.be/ZoeAyr0suLc
Operation instruction video connection:https://youtu.be/_XnuaLw3IWs
Operation instruction video connection:https://youtu.be/BoADmd2hTzw
Operation instruction video connection:https://youtu.be/hUae3hwN8WY
Operation instruction video connection:https://youtu.be/ammimJ2cVAI
Operation instruction video connection:https://youtu.be/Zaj5bdBB5j0
Operation instruction video connection:https://youtu.be/wLVy8MvK5fk
Operation instruction video connection:https://youtu.be/onbSHDwPuRI
Operation instruction video connection: https://youtu.be/SvZK67aSopM
Operation instruction video connection:https://youtu.be/FH3W5ENwqdA
Operation instruction video connection: https://youtu.be/lMwX6Ak3vw4
Operation instruction video connection:https://youtu.be/s94Tk3-ojX8
Operation instruction video connection:https://youtu.be/01n9H_vYRNI
Operation instruction video connection:https://youtu.be/SvziqJ0AGQk
Operation instruction video connection:https://youtu.be/-imuqx7fjsQ
Operation instruction video connection: https://youtu.be/u6c_3iZOmzc
Operation instruction video connection:https://youtu.be/sFFyf0bIeTk
Operation instruction video connection:https://youtu.be/3rsfPAlNTvY
21.How to set automatic obstacle avoidance for Vevshao A24?
Operation instruction video connection:https://youtu.be/sFFyf0bIeTk