[USL-050-B5 backlight adjust from program]

Hi.

I have a USL-050-B5 that is displaying the HMI on a USC-B5-B1.

I want to control the brightness of the backlight from the program, using a slider in a menu and turning the backlight on and off depending on if the system is started or not, as it is only needed about 2 hours every month, the rest of the time I want it to be dark.

Last time I made a similar project I used a US5-B5-B1, here I used modbus-tcp to read the wanted brightness from the main PLC, and a action to change the brightness on the display,

Do I need to replace the USL with a US5 to get this function?

[Bricked Unistream?]

8GB kingston, I will try unitronics support, thanks

[Bricked Unistream?]

I have a USP-070-B10 + USC-P-B10 I use for testing purposes,
Last week I had to upgrade the firmware to be able to download the project I needed to test, so I do as many times before; grab the nearest USB-stick, format it FAT32, firmware manager, copy to DOK, insert, start upgrade etc.

First thing should have seen as a warning was that the time to copy the files to the DOK took a looooong time.
The firmware update took a long time, so I left the workplace for a lunchbreak, when I came back, it said something like "HMI OVERLOAD" or overflow, or something like that.
So I removed the DOK and the power supply, counted to 10, and plugged the 24V back in.

The screen popped up again with "SD-files unpacking" and "update is in progress" screens.
I left it for some hours, and it never completed, or finished.

So I figure that the USB-stick was at fault, made a new stick with the firmware manager, tried the "force_update" usb rescue thing, and no change.
Left it over the weekend, came back today and it was still "update in progress" 
even if I start the panel without SD-card or USB stick, it still does the update in progress thing..

Is there any way to recover from this?
Any suggestions are welcome