NEW: Use an Android tablet as dedicated GX Wi-Fi Display (beta)

I was able to make it work on the three new generic Android tablets I ordered. I was not able to test the new update on the original tablet it failed on because I gave that tablet away. These are the three new tablets that were successful:

Great Job !!! Kudos to the development team.

I struggled for months to get a remotely located display in my RV. I tried extending the HDMI with Cat6 extenders with constant problems, and ended up remotely logging on to my system to view status. This solution solves that.

I purchased a $40 US 7" tablet running Android 11 from Amazon. I initially followed the YouTube online instructions from CSTech, but got stuck trying to get a QR reader functioning without going to the Google Play Store. When I found your instructions in this posting, the QR reader issue was resolved and the install went well. There were a couple choices I made during the install that were quite in your documentation, but close enough that I figured it out.

One defect found: I could not back arrow out of the settings page to return to the main screens. Selecting “Reload Web” from the Service Menu was the work around.

Great job!

adding some information in case it helps someone out.
Found a really good deal on an Amazon Fire Tablet 10.1 (2021)

I used the Fire Toolbox to remove the amazon bloatware and set the lock screen to none. this allows the power button to be used to directly wake it up to the app no password pin or even to swipe to unlock. you will need to connect the tablet to a windows PC and enable developer mode detailed instructions on this in the link above.

I then sideloaded Fully single app Kiosk APK and the Victron GX display app APK using the Fire tool kit

I configured fully to only use the GX app side loaded from the tool box and to use the built in camera to wake up the tablet screen and to put it to sleep after 5 minutes or if its dark.

to attach it to the wall I used this Wall mount

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The shore power shows disconnected on the GUI app on a stand alone Samsung S9 and on Remote console on the Victron Connect app on a Samsung S21, but it is not disconnected as shown on the Dashboard of the Victron Connect app.



What firmware version av you running of Venus OS? There was a bug in GUI v2 that made the shore power/grid show as disconnected if the Quattro/Multi was OFF (if I recall it correctly). That specific reported case should have been fixed in 3.52 according to release notes.

Running Venus OS 3.52 and GUI version beta4

I first tried the APK on my Lenovo M7 TB-7305F and it worked quite OK. After a while when letting the screen go black when i double tap the screen to wake it I arrive at a black screen. Sometimes white. The only thing shown is the battery charge status in the upper right corner.

I then installed the app via the bootloader. The same issue.

I have tried 5s push i the bottom left → search for devices and reconnected. This sometimes helps but most often not. Reload Web doesn’t help either. Reboot gets me back again.

If feels like some kind of restart of the app button would be nice to have.

Often when I wake the screen I get a couple of errors under the Victron logo, and then it reconnects. This is probably due to this being a slow old pad, I can hardly see these om my phone.

Could these problems be due to me having the remote console open on several computers, are these sessions kicking each other out or can one have several parallell sessions?

v1.00beta4, Venus os 3.52. Android Go.

edit: I see someone else has the same problem with this device.

editedit: Is there something I can do to debug this issue?

Very cool! So far, so good!

Unfortunately the installation doesn’t work for me. Samsung Galaxy Tab S2 Android 7.

Reset to factory settings.
6x Tap at the welcome screen
Tablet asks for WLAN to download the qr reader.
Tablet downloads the qr reader and open it.
Scanning the qr code leeds to the error message below. (“The admin app could not be downloaded”)



based on that error message, you should double-check the Link given above from a browser. Maybe the file is gone…if the link is working, retry the method or either download it manually and install it from download yourself.

The link works and I got an apk file.
But as far as I understand, installing the apk is not the same as installing via QR code. It is not kiosk mode.
@jperez can you check why I get the error message, please?
I tried with a second Android 7 device (Galaxy A3 Phone) today and got the same message.

you can install the apk manually and try out the App.
If that works, you can make the GXDisplay-App the “launcher”, replacing the standard launcher of that Android device … after a restart, it will launch the GXDisplay App only.

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I have a asus zenpad 3s on android 7 . Had to install via apk. Seems to work except screen goes white.




Any ideas how to solve this would be appreciated.

Lenovo M9 tablet works perfectly.
Takes a while to setup - its just a slow process, but leave it to do its thing.

Mounted in the work van with RAM components.
Running from an Alfatronix USB power supply (above tablet) via a right angle USB-C cable.