Samsung UE40C8000XWXBT problem SPI flash

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neich
Posts: 4
Joined: Wed Feb 22, 2017 10:02 pm

Samsung UE40C8000XWXBT problem SPI flash

Post by neich » Wed Mar 01, 2017 8:47 am

Hello, Please Help me...
I Changed My TV Samsung Model UE40C8000XWXBT then Power off.
Currently the Power red LED blinking five or six second then a blank screen for 1 Second and get turn off. This is constantly repeated.
I need reprogramming of flash memory IC1 25X40BVSIG, But I can not find bin file for this model TV.
Please Help me, Do you dispose the necessary bin file? Please send it to me.
main board - BN41-01367B
display - LTF400HQ03
power board - BN44-00362A
IMG_20170228_175854.jpg
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juusso
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Re: Samsung UE40C8000XWXBT problem SPI flash

Post by juusso » Wed Mar 01, 2017 9:24 am

If you just changed model in service menu and havent touched anything else (especialy menus related to micom... ) then do eeprom reset and you get it alive back. Follow procedure on wiki.


LE40B653T5W,UE40D6750
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neich
Posts: 4
Joined: Wed Feb 22, 2017 10:02 pm

Re: Samsung UE40C8000XWXBT problem SPI flash

Post by neich » Wed Mar 01, 2017 10:22 am

Thanks.
My child has "played" with the remote. It has done consistently switching on and off of the power button RC. As a consequence TV is blocked.
I have read the guidance of wiki. My main board (BN41-01367B) has two EPROM memory 4256 (24C256) - IC7301 and IC8505. In the manual wiki missing UExxC8000 series.
Which EPROM memory needs to reset 7301 or 8505, or both?

Appendix: I've found the correct memory, this is IC7301

neich
Posts: 4
Joined: Wed Feb 22, 2017 10:02 pm

Re: Samsung UE40C8000XWXBT problem SPI flash

Post by neich » Wed Mar 01, 2017 3:15 pm

I made EPROM memory reset, but to no avail.The problem is still. Continue to look for bin file to SPI flash memory. Please someone help.

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juusso
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Re: Samsung UE40C8000XWXBT problem SPI flash

Post by juusso » Wed Mar 01, 2017 4:43 pm

Here is a dump from eeprom SAMSUNG UE40C8780XSXZG MainBN94-03469A, BN41-01367A. Mainboard revision is slightly different, but i think they are crosscompatible. You can reflash your 24c256 with content of this archive.

Please dump original eeprom firmware first and keep it in safe place before flashing over new one :)

p.s. SoC eeprom is not SPI flash. It is I2C bus eeprom.

p.p.s. Moreover, i think your problem is not related to winbond spi flash, which contains micom firmware. You need to deal with SoC eeprom, which is storage for service menu values you changed to innocent ones.
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LE40B653T5W,UE40D6750
Have questions? Read SamyGO Wiki, Search on forum first!
FFB (v0.8), FFB for CI+ . Get root on: C series, D series, E series, F series, H series, exeDSP/exeTV patches[C/D/E/F/H]

DO NOT EVER INSTALL FIRMWARE UPGRADE

neich
Posts: 4
Joined: Wed Feb 22, 2017 10:02 pm

Re: Samsung UE40C8000XWXBT problem SPI flash

Post by neich » Thu Mar 02, 2017 9:42 am

Hello juusso,
I have a programmer 24Схх and SPI 25хх. I did a rewrite of three memory of attachment - 24c256_IC7301; 24c256_IC8505 and s24cs02_IC4002. Result no, the problem remains.
After that put empty EPROM memories 24c256_IC7301 and 24c256_IC8505 - Result no.
In attachment puts bin files on my TV.
Detailed my problem consists in this:
1.TV stands in standby mode. Red LED lights.
2. I run via the TV remote control. Red LED flashes, triggered relay power.
3. After about 5 seconds the relay off, red LED stops flashing.
4. After one second TV alone is switched on again.
All this is repeated endlessly. The backlight of the display is not included. All supply voltages are available.
For this I doubt that bin file to SPI flash damaged.
In Mainboard BN41-01367A missing SPI 25x40.
Yes, I know that "p.s. SoC eeprom is not SPI flash. It is I2C bus eeprom." :)
We continue to struggle with the problem. :)
SAMSUNG UE40C8000 ORIGINAL.rar
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