UN40D5500RG stuck in bootloop after update
Posted: Tue Jun 10, 2014 6:14 pm
Hello! There seems to be a lot of wise people here, perhaps I can find help and help others.
I have an UN40D5500RG led, and it bricked after an Internet (trough wi-fi) attempt to update.
Now it just turns on, shows the "Samsung SMART TV" logo, shows "AV Input" for 3 seconds, and then turns off, and the cycle starts again. The TV was working fine before, so I discard a power board failure.
I have made an Exlink cable, but since Debug menu wasn't active when it bricked, its not very useful. I have tried all TDM codes but to no avail. Tried all known remote codes, none of them work.
Fiddling with I2C bus (shoting data, clock, etc) does not work either. USB shows no communications (for example to read a stick and flash firmware).
Output from console looks like this:
I have some programming skills and electronic knowledges, for example I can connect an arduino and get an eeprom dump/modify some values... I don't want to buy a main board replacement (yet) because it will hurt my electronic engineer pride!!! 
Can anybodie help me?
I have an UN40D5500RG led, and it bricked after an Internet (trough wi-fi) attempt to update.
Now it just turns on, shows the "Samsung SMART TV" logo, shows "AV Input" for 3 seconds, and then turns off, and the cycle starts again. The TV was working fine before, so I discard a power board failure.
I have made an Exlink cable, but since Debug menu wasn't active when it bricked, its not very useful. I have tried all TDM codes but to no avail. Tried all known remote codes, none of them work.
Fiddling with I2C bus (shoting data, clock, etc) does not work either. USB shows no communications (for example to read a stick and flash firmware).
Output from console looks like this:
Code: Select all
Switch to Earphone UART
SEC
Switch to Micom UART
=================================
onboot (Feb 25 2011 - 16:08:03)
release ver : 1002 - RELEASE
etc :
=================================
Onboot X6 Sync mode
LCD FastLogo Run...
Loading Kernel....
load kernel start, size : 131072 + 3538944 byte
Jump Kernel....
auth success by h/w sha1 UART1 is used to UART or logic mode. Can anybodie help me?