So, I read through the Raspberry pi not starting up forum and wanted to add my 2 cents to help others out.
I was running a prior venus OS on my PI4 but went down an easier route for upgrading:
I auto updated the Venus OS within the PI (Firmware/Online Updates) and selected the official 3.50.
After installing and rebooting, you will need a USB keybord, connected directly to the PI and use these commands on the PI:
CTRL + l (That’s an “L”, to clear the screen)
mount -o remount,rw /dev/root / (to change the filesystem from Read Only to Writable)
mv /etc/venus/headless /etc/venus/headless.off (same steps as in many other instructions on the forums)
reboot (will restart the PI)
Once it loads up, I had 3.50 installed but no new interface nor the “DISPLAY & LANGUAGE” tab.
Next, I loaded within the PI, the Beta 3.51+ OS and used the same commands above with the keyboard.
Then I reloaded again the official 3.50 and typed in the keyboard commands again (eveytime you update, you’ll have to type in the commands with a keyboard) and once more back to the Beta. It’s possible I didn’t have to do this as many times as I did but I read it may not take on a first or second try.
I now found that I had the DISPLAY & LANGUAGE tab, selected USER INTERFACE (REMOTE CONSOLE) > NEW UI
Then I went down to my Solar Station, plugged the USB to MPPT cables in and powered the PI up. It rebooted so many times, that I just walked away, went upstairs to my desktop and logged in remotely (https://192.xxx.x.xx) and was presented with the new interface, followed all the prompts and whalla! I have the new UI (remotely).
What I don’t have and not sure if its because I didn’t install another required file or 3.50 & Beta are not fully functional yet on the PI 4, is the new UI. I still have the prior UI on the PI, even though its running v3.51~2.
So, I am halfway there.
If anyone can help on what might be the reason the new UI is not displaying on the PI, I would appreciate it. Might it have something to do with the .swu files?