SamyGO

Hi. My TV is Samsung UA46F7500. I entered Service menu and changed region and tuner model. After that Tv is restarting. Appears SMART TV logo, after 3 icons, then black screen and after 10 seconds TV rebooting. I've tried 12-15 sec pressing EXIT agter Left arrow and Enter but nothing. Then i tried reset EEPROM chip S24C51 by shorting pins SDA+SCL, SDA+VCC, SCL+VCC, GND+SDA, GND+SCL. When i short them SMART TV logo appears upside down, icons changes from 3 to 5, black screen and restarts. So i can't reset EEPROM. When i realese pins TV ceep restarting with normal logo and 3 icons again. How can i fix this issue.

Thank you veru much

pin 4+5 OR 5+6 , but be sure you do everything according instruction on wiki.

now i see you do everything wrong. are you trying to burn your mainboard?

1. unplug TV from electricity
2. make short connection and don`t release
3. power to the wall and wait until LCD is on
4. release short circuit
5. power OFF using RC to stand by
6. info-menu-mute-power (or mute 1 8 2 power) and set proper values.

Thank you for reply. I'll try.

juuso wrote:pin 4+5 OR 5+6 , but be sure you do everything according instruction on wiki.

now i see you do everything wrong. are you trying to burn your mainboard?

1. unplug TV from electricity
2. make short connection and don`t release
3. power to the wall and wait until LCD is on
4. release short circuit
5. power OFF using RC to stand by
6. info-menu-mute- (or mute 1 8 2 power) and set proper values.

Hi. You're quite right. My wrong is i did not released short circuit in time. I did everything as you advised and TV revived. Just i did not turned off TV because it entered service mode by itself after that i released short circuit.

Thank you very much Sir.

Hi,
I'm new in this forum. have the same issue. my question is, what do you mean with short connection. how i do it?
Thank you.

Thank you for your great forum!
Unfortunately i don't understand too, i have the same problem, please explain more, i just changed my local-set and that's happened to me!
Thank you in advance for any help.

Hi I have F7500 I am having the same problem however when holding the wire I hear a clicking sounds after 30sec, 45sec, 60sec, I release the wire then it reboots and continues to do the same thing.

I assumed I am holding wires on the wrong pins when I place on the other side of the eprom the logo is upside down and when it restarts it just does the same thing.

I am unable to go standby mode and I assume that is the reason I cant go to the service menu.

Please help!!! WHAT AM I DOING WRONG?

Use IR method and send INFO+FACTORY while TV is on and you get directly to service menu. You can try any of available methods ( http://wiki.samygo.tv/index.php?title=H ... SPEED_keys ). Most simple is mobile phone with IR port + SRC app.

Hi I tried using the IR but my time is insufficient before the bootloop. It freezes and reboots or sometimes the screen turns blank then it clicks and reboots. Please help.

juusso wrote: ↑Mon Jan 13, 2014 12:52 pm pin 4+5 OR 5+6 , but be sure you do everything according instruction on wiki.

now i see you do everything wrong. are you trying to burn your mainboard?

1. unplug TV from electricity
2. make short connection and don`t release
3. power to the wall and wait until LCD is on
4. release short circuit
5. power OFF using RC to stand by
6. info-menu-mute-power (or mute 1 8 2 power) and set proper values.

Thanks to this post I was able to fix my Samsung UN50NU7090. First I tried VCC+SDA several times without success. GRD+SDA didn't work either. Fortunately, VCC+SCL did the trick for me. Also, the info in the wiki site on how to unbrick the TV by EEPROM reset was extremely helpful.(https://wiki.samygo.tv/index.php/UnBric ... set#EEPROM).

Thank you so much!