Bricked my UE40B7090

[juusso]

if here is no output, then means cable is wrong. Maybe you`ve to swap rx and tx?

if here was some unreadable (but - output) with wrong cable, then it should be here with proper cable, right?. If here is no sign of TV being alive, then
- check cable, often ppl use wrong pins for rx and tx, so try to swap.
- or maybe you`ve used headphones socket instead of Service socket???
- wrong com port (not com1 as on wiki - you have to check your PC settings, which com port you have to use)

When you get all working, your next goal is to get u-boot prompt
http://wiki.samygo.tv/index.php5/Repair ... oot_prompt

[DrySteve]

I try to get a computer with a real COM port.

Today I drove 80km for soldering the cable and I cannot switch easylie tx and rx... xD

I come back..

[DrySteve]

we measured the pins and also the stereo plug.
The cable is definitly ok.

No output also with a real COM port.
Steve

[juusso]

you start putty, then power on tv and nothing on the screen? If you`ve set rs232 to debug, then you have to see at least onboot message.

[DrySteve]

I set the RS232 debug and the recommended settings in the service menu before I flashed with FFB.
Can it be, that flash reset the service menu to default and debug is off now?

[juusso]

nope. it cannot.

[DrySteve]

I have no idea.
Maybe the Mainboard is damaged same time I restarted after flashing the FW.
The LED is flashlight 4 times.
Then it is on.
The RC isn't working. Any key on RC let the LED flash but nothing work.
I cannot power off with the RC.
I cannot go to service menu again.
Nothing apeers in putty when I power on the TV with RC.
Power on works with RC.
That's all.

[DrySteve]

And new is - after power on sometimes vertical colored stripes are visible.
This stripes are fading out to a black background.

[juusso]

Have no clue why this happen at you. unplug from wall, open putty connection trough exlink, keep holdig tlde key ~ and plug tv on. You should get all.
If no connection, i can`t help. I still think you`r cable/connection/com port or smth else are bad. Check again.

[DrySteve]

Thanks,
I've checked four times the end to end pin to plug with a volt meter.
Also the plug 1 2 3 with 20 Ohm, if there is ok.
If the schema you gave is ok, then the cable is ok.
And I belive it is ok.
Therefore there is no more output over the ExLink interface.
And I tried hold tilde char.
No output.
I buy a new TV and you can close this Thread.
Thanks for trying in support me.

Are I'm right the E and F Series can be controlled with Android App without patching the firmware?

Steve