[SOLVED] LE40B650 CI+ Problem

[Momox]

Hello,

after downgrade to version 2006.0 from http://opensource.samsung.com/reception ... CHLCIPDEUC
TV just goes off after 30 seconds.

I can perform scripts in the content library within that time.
What can i do ?

[juusso]

will check what is wrong in your logs.
was it original firmware?

EDIT.
FFB worked as expected. Problem with appdata.img (checksum wrong after decrypting - maybe USB I/O errors?) forced to stop FFB and this prevented from switching firmwares. You shouldn`t get cyclic reboot because of that. But one (also expected already on other TV, but just in mandatory tests) may be: an abnormal authuld condition on your TV - perhaps authuld toggled to read cmac blocks (hashes) from not proper partition. This comes to my mind as reason, which i couldn`t and can`t predict on any TV and prevent from this weird situation in future.

To Solve your problem (and collect info for future) we need to do some TV Crash Investigation, okey?

I need dumps your hash partitions to check it. Also please tell me if TV was upgraded in the past to recent firmware you`ve trying to get rid from? Can be you don`t know, then we will think it wasn`t. Please connect to telnet (with attached USB) and make commands:

Code: Select all

ls -1 /mtd_rwarea/PartitionSwitch* > /dtv/usb/sda1/REPAIR.log
cat /mtd_rwarea/Version* >> /dtv/usb/sda1/REPAIR.log
bml.dump /dev/bml0/18 /dtv/usb/sda1/bml18_r.dmp >> /dtv/usb/sda1/REPAIR.log 2>&1
bml.dump /dev/bml0/19 /dtv/usb/sda1/bml19_r.dmp >> /dtv/usb/sda1/REPAIR.log 2>&1
bml.dump /dev/bml0/20 /dtv/usb/sda1/bml20_r.dmp >> /dtv/usb/sda1/REPAIR.log 2>&1

 

Give files you get for me to (REPAIR.log and three dmp files you get). Use Select All and copy to buffer whole commands from here and paste to console to spare time.

[Momox]

Hi juuso,

i switched from 2008 to 2007 with alternative firmware.

i found the mistake.
I downloaded the file T-CHLCIPDEUC-2006_0.zip two times again and noted the md5s.
I checked the corrupt file T-CHLCIPDEUC-2006_0.zip with md5 and found that these are different.

[juusso]

i switched from 2008 to 2007 with alternative firmware.

You`ve used Activating alternative firmware script and switched to previous firmware trough the help-software upgrade-menu? This won`t be the problem.

FFB logs showed exe.img hash must fail on your TV (That`s why it started to reboot.), because new hash file was not flashed. But at same time - partition switch was not triggered as well! Question still remains open - why it bricked... Inspecting files...

EDIT: have you made dumps before or after your restored back? Btw, required macPart files are already on FFB, not need to download them from anywhere. Could you please dump other:

Code: Select all

/dev/bml0/8
/dev/bml0/9
/dev/bml0/10
/dev/bml0/11

And upload them to compare against hash partitions.? Where have you download that T-CHLCIPDEUC-2006_0.zip ? From opensource.samsung.com ? Here is no matter about zip archive md5. The matter is the md5 of appdata.img. Waiting of dumps. Thanks!

[Momox]

i have no dumps made bevore flashing

have downloaded T-CHLCIPDEUC-2006_0.zip from opensource.samsung.com.
checked only the md5 of the zip file.

I have tried to dump 8,9,10,11 but have little time for full dumps.
after killall -9 authuld i have a little more time 1:50 min.

http://dl.dropbox.com/u/62140007/repair.zip

[juusso]

Is your TV still rebooting? dumps of that partitions are incomplete.

[Momox]

Yes it goes off after 30 seconds with flashing red light.

I can not do full dumps because no time is available. only 1:30 - 1:50 min

[juusso]

Okey, Give me once again the output of

Code: Select all

ls -1 /mtd_rwarea/PartitionSwitch*
cat /mtd_rwarea/Version*

[Momox]

Code: Select all

# ls -1 /mtd_rwarea/PartitionSwitch*
/mtd_rwarea/PartitionSwitch_1_0
# cat /mtd_rwarea/Version*
SWU_T-CHLCIPDEUC_002007_I02_EK000DK000_100620
SWU_T-CHLCIPDEUC_002006_I02_EK000DK000_091112

[juusso]

Why don`t you choose Alternative firmware from software upgrade menu?