Originally posted by jczarniak
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It depends on a few things.
Please know that what I'm about to tell you is the product of the previous 2 years worth of research, and while this certainly works for my Poloroid MB110, the same cannot be said for my Toshiba MB211
First let's get the NO part out the way....
"Is their an EASY way to change the logo on my smart screen" - and as you guessed it... NO
That is their is no "Download" commands that work on the Usb as thier is for the boot logo that change this..
NOW for the Yes bit.
Please do not try this, unless your comfortable with a number of different I.T. and software development skill sets, because you can easily completely bugger up your TV and make the smart portal stuff unusable.
On some models of TV there is a control port open to allow control of the device by a remote application, this application is NOT the same application you get on android to change channels, use the touch mouse etc, this is an application to remote control the device for things like Hotel Mode operation and/or Digital Signage.
The larger 40"+ Poloroid models sold by Asda in the UK nearly all seem to have the network port left open, the smaller models EG: like the 32" Toshiba I have do not.
To check you'll need a Linux based computer (Or if on Windows you'll need some kind of port scanning app)
From your linux computer, you'll need to use the "nmap" tool (You might need to install it) to scan the I.P. address of your TV.
For example:
You'll see that I've underlined one of the ports in red, port number 1986 to be exact, and the command I used to get this scan was
nmap -p 1-10000 xxx.xxx.xxx.xxx
(Replace xxx.xxx.xxx.xxx with the network address of your TV, you should be able to see this in the network settings somewhere)
If port 1986 is open then your in luck, because you can do a HUGE number of modifications to your TV, if it's not... then there is still things you can do, but you cannot modify the contents of the TV directly.
If the port is open google for and download "Vestel Toolbox v1.1" written by "TommyData" in 2017, you MUST use version 1.1 or later as this is the only version that has the telnet/ftp enable tool built into it, earlier versions do not.
With the vestel toolbox, put the IP address of your TV into the IP box on the enable telnet part of the app, then click enable FTP and/or Enable Telnet.
Enable Telnet allows you to log into your TV's linux command line using a simple terminal client EG:
telnet xxx.xxx.xxx.xxx
and once you have that command line you can use normal linux commands to change files, copy files etc etc... if you have a USB Key or Hard Drive plugged into your TV when you log in, you can use linux commands to copy files from your TV to the USB and back again.
If you enable FTP and then use a program such as "Filezilla" you can get a drag and drop file list, and copy the files to/from your TV directly to your PC and back again.
Some of the areas on the built in disk are read-only and to write files to them, you'll need to use the linux ubi tools to "remount the disk read/write", I don't have the instructions to hand for that one so you'll need to google it, something like "ubifs remount disk read write" should do it...
The files for the smart portal are in the folder "/vendor/html_applications/light_portal/vestel/" in there you'll find a html file, and css/js/images folders containing graphics and such like.
If you've made the internal disk writable, then you can download these files using either the linux command, or ftp methods, modify them as required (You will need to know how to program HTML web pages) then save them back to the TV and replace the old ones.
ONCE AGAIN, I CANNOT STRESS THIS ENOUGH - IF YOU GET IT WRONG, OR MAKE A PROGRAMMING MISTAKE IN THE REPLACEMENT FILES, YOU WILL STOP YOUR SMART PORTAL FROM WORKING.
If you break it, then you'll need to go back, look at your files, fix them, then re-upload them again, and possibly keep doing that until you fix things.
Now... what happens if you don't have that port open?
Well, there is another part to this mystery.
Vestel, actually have an online server available at http://portaltv.tv/ AND, your TV actually loads it's smart portal from there IF it detects it has a live internet connection.
I only loads the one stored in the TV if it cannot get a connection to the internet, otherwise, it loads from the portaltv website.
Now... here's the interesting part.
The one stored in the TV is unbranded, the pure fact that your image above actually shows the JVC logo, tells me that your TV is loading yours from the internet.. how do I know this?
Every 5 minutes or so your TV sends data to portaltv.tv telling it what it's internet address and identifier is and specifically what model.
When you connect to the smart portal, the portaltv website then puts the appropriate logo for your TV brand (and the design) up on screen.
For my MB110 for example, I get a poloroid branded portal.
The more up to date sets, like my Toshiba MB211 all go to "http://orion.portaltv.tv" but instead of downloading the full portal, they just download some data, and combine that with a html portal built into them, which from what I know so far seems to be stored in a similar place.
Now, the interesting part is..... IF you know how to set up a DNS server for your network, you can register "orion.portaltv.tv" and "portaltv.tv" inside your network, and point them both to your own computers, with your own web applications on them.
I've done this on mine, and now BOTH of my TV's have the same user interface when I go into internet mode, a slide out red bar on the right with a scrolling list of all my linkable apps on, including Emby and Plex.
I'm not going to go into how I did all of this here, I've already typed up a novels worth, and you really need to know a lot of advanced stuff to make this work.
It's NOT an easy task, and as I've said already, get it wrong and you'll end up with a TV that you can... well only watch TV on :-)
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