About R20 Max system firmware upgrade

We will regularly optimize and maintain Android system firmware. Support OTA online update Android firmware.Operation video guide:h

Note: If the projector can be turned on normally, please use the online upgrade. Do not update the firmware with a USB flash drive. If you encounter problems, please restore the factory settings first. If you must update the firmware, please contact customer service and provide the serial number of the projector and the Android system to the customer service. Version, because the electronic components of the projector motherboards produced in different batches have changed, and different firmware corresponds to different motherboards. If the wrong firmware is used, the projector will not be able to boot. Please proceed with caution.

If there is a problem with the projector’s Android firmware and it cannot be upgraded online, 

1. you can click the icon below to download the firmware and unzip it. 

2. Unzip the firmware to the root directory of the U disk. Note: Do not put it in other folders. 

3. Then insert the U disk into the USB interface of the projector, 

4. and then connect the power cord of the projector, 

5. press and hold the power button to upgrade, the projector will automatically upgrade. 

6. Wait for the projector to automatically shut down, and then load all the APPs after it is automatically turned on, about 20 minutes. It can be used normally. 

Note: Do not disconnect the power to the projector when upgrading. Otherwise it will cause the projector to be abnormal and slow to start. Need to upgrade again.

Firmware upgrade user guide video: h

Warning: before brushing the firmware, please send the serial number at the bottom of the projector to the sales customer service to confirm the specific firmware version. Brushing the wrong firmware will cause the projector to directly break down and the user cannot repair it.

Firmware version:  V.1TY2024012719en

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 The Bluetooth file transfer function has been replaced by APP.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.

1. Wifi-display for iphone/Ipad (iOS OS smart device)

Operation video guide:https://youtu.be/bA0s_AnpyIY

Option 1：

1.Chromecast bulin-in function only works when you use Android TV system

2. Download "Google Home" on your mobile phone (applicable to Android/iOS devices)

3.Go to the projector "settings"--select "Device Preferences"--go to "Chromecast built-in"--go to "Let others control your cast media"--select "Always"

4. Make sure your device and projector are connected to the same WiFi network and that you are running the latest version of a Chromecast-enabled app.

5. Launch "Google Home" on your phone--select "Devices"--select the name of your projector--"Cast my screen"--"Cast screen"--confirm

Option 2：

1. You need to download and install "airscreen" from "Google play store"

2. Authorization is required to enter "airscreen" for the first time.

3. Follow the steps to enable the permissions of the "airscreen" APP, and select "Grant"--"While using the app"

4. After authorization, you can detect which WiFi the projector is connected to.

5. Connect your mobile phone, computer, etc. to the same WiFi as the projector, and select "Confirm"

6. Scan the QR code on the screen with your mobile phone to get the screencasting tutorial

7. Follow the tutorial on your mobile phone to project the screen to the projector

2. Wifi-display for android smartphone/tablet/other Android OS devices

Operation video guide:https://youtu.be/LRqc3nrYhVY

Step：

1.Chromecast bulin-in function only works when you use Android TV system

2. Download "Google Home" on your mobile phone (applicable to Android/iOS devices)

3.Go to the projector "settings"--select "Device Preferences"--go to "Chromecast built-in"--go to "Let others control your cast media"--select "Always"

4. Make sure your device and projector are connected to the same WiFi network and that you are running the latest version of a Chromecast-enabled app.

5. Launch "Google Home" on your phone--select "Devices"--select the name of your projector--"Cast my screen"--"Cast screen"--confirm

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.

3. How to use BYINTEK R20 Max projector to watch 3D movies with 3D glasses, and how to play 3D?

Operation video guide：https://youtu.be/SHO8pQLvSig

Step：

1. Open the 3D video and long press the button in the upper right corner of the remote control to bring up the 3D settings.

2. Move cursor to 3D option.

3. Select the corresponding 3D mode according to the video (select "SBS" for left and right 3D, and "TB" for up and down 3D)

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.

4. How to adjust the color (color temperature) of BYINTEK R20 Max images?

Operation video guide: https://youtu.be/8U-_KG9Vgtc

5. How to adjust corner keystone correction for BYINTEK R20 Max projection from the side?

Operation video guide: https://youtu.be/jNhvCg1rnvc

6. How to adjust the brightness of the BYINTEK R20 Max screen?

Operation video guide: https://youtu.be/GaRWeSYqRf0

7. How to adjust the flip BYINTEK R20 Max graphics screen?

Operation video guide: https://youtu.be/xuU7dc5hG6c

8. How to switch signal sources on R20 Max?

Operation video guide：https://youtu.be/aXRS_RKeBLM

9. BYINTEK R20 Max online upgrade operation guide

Operation video guide:https://youtu.be/wq8R9GcpOLc

10. How does BYINTEK R20 Max switch the system language?

Operation video guide:https://youtu.be/-XASh8DTmUA

11. How to turn off the startup music of BYINTEK R20 Max？

Operation video guide:https://youtu.be/Qz3Heo-x0i4

12. How to restore the factory of BYINTEK R20 Max projector?

Operation video guide:https://youtu.be/XT4DnYK8L8o

13. How to check the product system firmware information version of BYINTEK R20 Max projector？

Operation video guide:https://youtu.be/mleZ5zdWgus

14. The original infrared remote control is not easy to control on APPs such as netflix, how to solve it?

t is recommended to use the mouse to operate, or buy a 2.4G "air mouse", choose the kind of air mouse with remote control on one side and keyboard on the other side. This air mouse is suitable for all Android system projectors. This kind of remote control performance Very good, and the price is not expensive. Similar to the picture below.

15. How to solve Fire TV stick 4K connected to the projector to play movies no sound？

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

16. How to read PDF, PPT and word documents in USB flash driver?

Operation instruction video: https://youtu.be/q0cmRUCevtM

17. How to install input methods in different languages in BYINTEK Projector？

Operation video guide：https://youtu.be/XZI_YmLU5y0

Step：

Input method installation package download: https://drive.google.com/drive/folders/12FZ3rsLOCAgq16BO2QalrDzlfsNfD8Yy

1. After downloading, copy the input method APK installation package to the U disk.

2. Insert the U disk copy into the USB port of the Android projector

3. Use the remote control to enter the projector's file management and find the installation package on the U disk

4. Select the APK file, press OK, and install it according to the prompts.

5. In the "Settings" of the projector, find the position of the keyboard input method switch, and switch to the input method you installed. Different projectors switch in different positions.

6. Switch the keyboard input method to the input method "Leankey Keyboard" that was just installed, and you can test it. When entering text on other apps, a virtual keyboard will pop up, and you can switch languages in different countries by clicking the circular icon in the keyboard. .

18. How to read files from USB disk

Operation video guide：https://youtu.be/LCIPCGr77sI

Step：

1. Enter "Google play store", search for, download and install the "file Manager+" APP

2. Follow the steps to open the permissions of the "File Manager+" APP, enter the "File Manager+ APP", and follow the prompts to operate "Next" - find and select "Permissions" - select "Files and media" - select "Allow all the time"--"ALLOW"

3. Insert the U disk, open "File Manager+" and find the USB icon.

19. How to read videos from U disk

Step：

1. Open "Google play store", search for and download "MX player" in the search bar (there is a recommended application to install in the boot boot area, after selecting the installation there, the application will be automatically downloaded and installed when booting)

2. Insert the USB disk and open "MX player"

3. Follow the steps to open the permissions of the "MX player" APP and enter "ALLOW ACCESS"--"Permissions"--"Files and media"--"Allow all the time"--"ALLOW"

4. Then you can see the files in the U disk in "MX player"

20. How to install APK via USB disk

Operation video guide：https://youtu.be/XZI_YmLU5y0

Step：

1. Put the apk file you downloaded from your computer into the USB flash drive

2. Connect the projector to the USB flash drive, open the file management you downloaded, and find the apk file in the USB flash drive.

3. Follow the steps to open the permissions of the "MX player" APP, select "SETTINGS"--open "File Manager +"

4. After authorization, you will return to the main interface.

5. Open the file management again, find the USB icon, find and install the apk in the USB flash drive

6. Applications installed through USB flash drives will not be displayed on the main interface and app interface.

7. You need to go to the app interface of file management to open it.

21. How to turn off video recommendation information on homepage and application pages?

Operation video guide：https://youtu.be/7BRHnutzNW8

Step：

1. At the bottom of the page there is an interface to set "Customize channels"

2. In "Customize channels" you can turn off video recommendations for some applications, etc.

3. After turning off all the recommendations inside, there will be no video content recommendations on the interface.

22. How to enter the projector initial interface with R20 Max?

Operation video guide：https://youtu.be/P3bdyDh4Oao

23. How to perform automatic keystone correction on R20 Max?

Operation video guide：https://youtu.be/XiiAsWhquNU

24. How to authorize and use mouse to operate PowerPoint on R20 Max?

Operation video guide：https://youtu.be/Ums-S1FjWxs

25. How to manage and authorize download files on R20 Max?

Operation video guide：https://youtu.be/4SFWGQCLrdk

26. How to complete the R20 Max boot instructions?

Operation video guide：https://youtu.be/o_OjX43VUoU