Mag 250 Decoder No Picture on LG 55SJ800V TV - HDMI Connection Troubleshooting & Solutions

Hello, I just bought a new LG 55SJ800V TV set and I can not connect to the Mag 250 decoder in any way, i.e. after connecting to HDMI 1 and restarting the decoder, loading appears and after a while no signal appears. I would like to point out that the set-top box is working because everything is ok on the old TV, I also called the LG service who said that it was the decoder's fault, while the gentlemen from the cable TV that I have said that it was a TV problem: / butter: /
Maybe someone of you had a similar problem, thank you in advance for your help, best regards.

MisYoogi wrote:

restarting the decoder

Unplug all the cables from the tv and reset it too (also reset the decoder to be sure).

MisYoogi wrote:

also to the LG service which stated that it was the decoder fault, while the gentlemen from the cable TV I had said it was a TV problem: / butter: /

This is standard text for everyone - each of them took your money and that's it, the problem is yours.

Hello. Then read the instructions from this LG SMART UHD 4K will this decoder work for you?

KOCUREK1970 wrote:

MisYoogi wrote:

restarting the decoder

Unplug all the cables from the tv and reset it too (also reset the decoder to be sure).

MisYoogi wrote:

also to the LG service which stated that it was the decoder fault, while the gentlemen from the cable TV I had said it was a TV problem: / butter: /

This is standard text for everyone - each of them took your money and that's it, the problem is yours.

I unplugged all cables and from the TV and decoder, restarted it, nothing helps.

Added after 1 [minutes]:

PITERRR wrote:

Hello. Then read the instructions from this LG SMART UHD 4K will this decoder work for you?

Unfortunately, in the manual attached to the TV, there is no list of decoders with which it works.

Well, here is probably the problem that this decoder does not work. What type of TV did you have on which the decoder used the old brand?

PITERRR wrote:

Well, here is probably the problem that this decoder does not work. What type of TV did you have on which the decoder used the old brand?

The old TV model is: LG 42LK450-ZB

LG 42LK450-ZB ....? But it was just imported from abroad, it is known that it will work but not on SMART UHD.

PITERRR wrote:

LG 42LK450-ZB ....? But it was just imported from abroad, it is known that it will work but not on SMART UHD.

Yes, this is my 8-year-old TV set from any other country, normally bought in Poland 8 years ago.

I suspect that the only solution to my problem will be to terminate the contract with the TV provider and sign a new one with another.

MisYoogi wrote:

termination of the contract with the television provider and signing a new one with another

That would be the best solution.

MisYoogi wrote:

I suspect that the only solution to my problem will be to terminate the contract with the TV provider and sign a new one with another.

Or replacing the current operator decoder with a different model.

The cable decoder probably has the old HDCP, tv a newer version of this protocol and such flowers (at one time Cyfra + also exchanged a lot of its set-top boxes, because they did not work with newer TVs through the newer HDCP version on tv).

KOCUREK1970 wrote:

MisYoogi wrote:

I suspect that the only solution to my problem will be to terminate the contract with the TV provider and sign a new one with another.

Or replacing the current operator decoder with a different model.

The cable decoder probably has the old HDCP, tv a newer version of this protocol and such flowers (at one time Cyfra + also exchanged a lot of its set-top boxes, because they did not work with newer TVs through the newer HDCP version on tv).

Unfortunately, replacing the decoder is not an option, as the cable provider knows, only this decoder model is available. As for HDCP, this could be the problem, I read a little bit and puffed my tongue and it looks like the problem to me. In addition, the decoder software version is from 2015. and I have not found a newer one.

Added after 35 [minutes]:

I just noticed that by turning on the "HDMI ULTRA HD Deep Color" function on the HDMI 1 output to which the decoder is connected, the image appeared, unfortunately, as it is in the description of this function, it may lead to loss of image / sound with older versions of the decoder for me it is a lack of sound.