TV Manta LED1905V3 - After switching on the manta logo, it stays so

Hello . As in the topic, after turning on the above TV, the TV goes into stby, after pressing the power button, the TV starts on the matrix, it displays the Manta startup logo and so it does not respond to the buttons. The voltage is correct, I replaced the Spi memory with the forum batch, it did not change anything. Maybe the "instal.img" file loaded from pendrive will help.
If someone shared, thanks in advance.

https://www.elektroda.pl/rtvforum/viewtopic.php?p=16646760#16646760

Thanks, I was programming with this batch and it didn't change anything, I'll try to program the memory of a different manufacturer and let me know about the effects.

What plate, like matrix?
Please enter the basic voltage on main.

Hello, after another approach to the above-mentioned. TV. The signal plate in it is:
HK-T.RT2957E01, MV185WHB-N10 5V matrix
Voltage 12V, 5V ok on the stabilizers
U4 1.57V
U6 3.33V
U11 3.33V
on L21.26V
Uploading a batch to another memory cube did not change anything. Because low-cost repair
I connected a pendrive with sftem install img on usb. from Manta TV LED 2206.
After turning on the TV, the process of loading the software and then the TV set alternately displays black blue red and green background and so on.
Reloading the software to the SPI memory restores the TV to its original state
that is, the manta ray logo on a gray background is still standing. What else could be done? Bad batch? correct img file ?? Maybe someone will help.
I forgot - I am wondering about the voltage U4 1.57V is it correct, I do not have a diagram, maybe it is a flaw?

The input that I posted came from the TV, which the owner connected to the 24V power supply, the inverter at the input was burned, the memory supply voltage was not short-circuited and the memory could be read, and the TV set played according to the owner until the wrong connection.
The memory was readable, so I put its content, because it was wanted on the forum in the topic Link but the author didn't say whether the batch was good.

Thank you for your interest. My further fight with this TV - the following conclusions:
The TV will either make it or go to scrap, I uploaded the bin feed to TV Manta
Brand: Manta
Model: 2802
Chassis (motherboard or main components): HK-T.RT2957P60
Other (comments): matrix: ST2751A01-3-XC-3 posted by * rtv tomek *
The TV started up surprisingly, I do not have the original remote control for it, but the volume controls the volume with another remote control, the buttons on the panel work differently than described, and worst of all
does not find programs while scanning (probably a different type of head in memory).
So, my final diagnosis is the need to upload the correct load, and the one you posted is probably not working, maybe someone will verify (or) give the correct load.
By the way, it is pathetic that the new TV set costs less than PLN 400, the manufacturer
does not provide such basic files.

adamo72 wrote:

does not provide such basic files.

The only thing we can do is advise against the purchase of this company's products at every step.

After the symptoms, as you can see, 100% load on the disc. You should also pay attention to whether it is not broken down into several memories in this case. It often happens that the batch from the primary memory (and here, as a rule, spi is used in the sop8 housing) is only boot and the boot logo just mentioned. On the other hand, the main flash memory (usually the memory in the tsop48 housing) contains the rest of the basic software. Unfortunately, many times either someone does not want to desolder it and take readings, or there is simply nothing because these memories already require more knowledge and more serious equipment. If I find the mentioned TV in working order on the website, I will do a reading for you.

greetings

Lukinx wrote:

After the symptoms, as you can see, 100% load on the disc. You should also pay attention to whether it is not broken down into several memories in this case. It often happens that the batch from the primary memory (and here, as a rule, spi is used in the sop8 housing) is only boot and the boot logo just mentioned. On the other hand, the main flash memory (usually the memory in the tsop48 housing) contains the rest of the basic software.

This is often correct, but this board only has SPI memory, no other memory chip.

Thank you for your interest . If the client does not resign, I am still waiting for help, i.e. a certain charge. It will confirm the diagnosis and may save other TV sets. Greetings.

The client abandoned the repair and took the TV. Thank you for your interest in the topic.