LA32B650 keeps restarting.

[juusso]

Well... leave secureCRT, use putty instead.

1. Connect Exlink to TV. (it is in standby mode)
2. Open putty
3. Set connection parameters
4. Press open - you get blank putty terminal window
5. Power on TV

Post here what you get on putty screen.

If you still get no text from TV, check Exlink - join tx and rx on 3.5 jack side (1 and 2) and try input anything on putty window - if you get symbols on the screen - cable ok, if not - somenthing is wrong.

If your cable is ok, but you do not get anything, it means - you`ve not set rs232-jack to debug mode on service menu. It is bad.
In this situation opening TV`s case and looking forward to "debug" button on mainboard directly...

6. Try get to u-boot promt. If you success to u-boot menu, power off TV, power on it again and...
7. try get to top debug menu
8. After you enter "debug" and get something like:

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[SERIAL INPUT MANAGE] 1-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 2-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 3-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 4-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 5-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] serial input ENABLE!!!!!
#

Press

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ctrl+c

on keyboard, then
very fast:

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/mtd_boot/MicomCtrl 23

You should get

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Starting pid 639, console /dev/ttyS1: '/bin/sh'
-sh: id: not found
#

After # enter

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 echo /mtd_rwarea/PartitionSwitch*

9. you should get either:
9.1

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/mtd_rwarea/PartitionSwitch_0_0

or
9.2

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/mtd_rwarea/PartitionSwitch_1_0

10. According findings in p.9 you have to change partition switch.
If 9.1 available, enter:

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rm -rf /mtd_rwarea/PartitionSwitch_0_0
touch /mtd_rwarea/PartitionSwitch_1_0

If 9.2:

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rm -rf /mtd_rwarea/PartitionSwitch_1_0
touch /mtd_rwarea/PartitionSwitch_0_0

11. Check again:

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 echo /mtd_rwarea/PartitionSwitch*

You should get different as you got in 9 step.
12. Reboot TV. It should start normally.

[juusso]

It could be, you do not have button soldered in. But you should look the place for this button (x4001 if i remember well). So you have to make a little metal circle and connect those 4 pins together - it simulates pressing of button. Hold it pressed, power on TV and release it after you get some text on putty window. If button works, it drops debug mode permanently to ON, so you do not need it every time you reboot TV.

Here is photo with button:


And here - Hi-res photos.

p.s. here is one important thing - if you upgraded your TV with latest firmware and did not restored bml2,4,5 partitions, yuo do not get success here and it is leading to Service only.

[juusso]

flash in picture B is not welcome... what is behind it?

Check back side of mainboard and take photos. It could be placed there too.

[juusso]

Could you take A and B pictures again? Do not use flash-light or use it from other angle...
There is nothing important for us in C and D. You can place it back to case.

Might you take better resolution photos? Or you could take pictures from not whole mainboard, but just split it by areas to get pictures better?

[juusso]

It seems your m/b is quite different and does not have debug button. Pictures are good, thank you...

Did you set rs-232 to debug in service menu before to flash patched firmware? It is important, you didn`t answer yet.

Here was one suggestion to reset eeprom by shortening pins, but i personally think it does not help you. You could try, but chance to get it working are low.