Re: C Series EEPROM research
Posted: Sat Jan 11, 2014 5:45 pm
OK, thank you! Micom EEPROM has 256 byte (or 2kBit 
). Will dump and upload tomorrow 
). Will dump and upload tomorrow SamyGO
Samsung TV Firmware on the GO
http://forum.samygo.tv/
[howto] Switch boot partitions via micom eeprom C series
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Re: C Series EEPROM research
Posted: Sun Jan 12, 2014 2:34 pm
So, here's my micom's EEPROM dump. It's the same in standby and powered on.
Re: C Series EEPROM research
Posted: Sun Jan 12, 2014 2:48 pm
heyyy. your eeprom just looks like i have suggested to user to change bytes in eeprom topic.
in your case you have to set it vice versa
in your case you have to set it vice versa
Re: C Series EEPROM research
Posted: Sun Jan 12, 2014 2:50 pm
77 .... B0 change to CD .... AD
Re: C Series EEPROM research
Posted: Sun Jan 12, 2014 2:51 pm
jup, but i want to disable the watchdog first
But i'm failing right now... Executing 'http://IP/read?format=1&device=80&size=32768' works, but adding the address option neccesary for write command (-> 'http://IP/read?format=1&device=80&size=32768&addr=0') fails reading?! I will investigate the sketch
EDIT: my working teensy sketch can be found here: http://wiki.samygo.tv/index.php5/Ethern ... _interface
But i'm failing right now... Executing 'http://IP/read?format=1&device=80&size=32768' works, but adding the address option neccesary for write command (-> 'http://IP/read?format=1&device=80&size=32768&addr=0') fails reading?! I will investigate the sketch
EDIT: my working teensy sketch can be found here: http://wiki.samygo.tv/index.php5/Ethern ... _interface
Re: C Series EEPROM research
Posted: Sun Jan 12, 2014 3:35 pm
unplug from wall after change bytes in micom's eeprom
Re: C Series EEPROM research
Posted: Sun Jan 12, 2014 3:35 pm
OK, and i will try to write in standby, right? DONE
Please check my dump after changing as supposed. I won't disconnect from wall until you checked and agreed
Please check my dump after changing as supposed. I won't disconnect from wall until you checked and agreed
Re: C Series EEPROM research
Posted: Sun Jan 12, 2014 3:55 pm
seem ok. but why don't you change just these bytes instead of full dump?
Forced "toggle" via modify micom eeprom C series
Posted: Sun Jan 12, 2014 5:31 pm
Summary:
Switch to 1st boot partition set we have to change as follow:
To switch to 2nd boot partition set, have to use:
Case solved. hope this info helps for someone in future.
Switch to 1st boot partition set we have to change as follow:
SpoilerShow
00000000 CD 01 FF 01 FF 04 01 01 00 FF 73 70 61 FF AD FF ?.?.?....?spa?.?
00000010 FF FF 00 FF FF FF FF FF FF FF FF FF FF FF FF FF ??.?????????????
00000020 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ????????????????
00000010 FF FF 00 FF FF FF FF FF FF FF FF FF FF FF FF FF ??.?????????????
00000020 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ????????????????
Code: Select all
>> ONBOOT :: 0x81c60204 0x12821284
1nd Partition !!!!!!!!!!!!!!!!!
SpoilerShow
00000000 77 01 FF 01 FF 04 01 01 00 FF 73 70 61 FF B0 FF ?.?.?....?spa?.?
00000010 FF FF 00 FF FF FF FF FF FF FF FF FF FF FF FF FF ??.?????????????
00000020 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ????????????????
00000010 FF FF 00 FF FF FF FF FF FF FF FF FF FF FF FF FF ??.?????????????
00000020 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ????????????????
Code: Select all
>> ONBOOT :: 0x81c60204 0x12821284
2nd Partition !!!!!!!!!!!!!!!!!
Re: [howto] Switch boot partitions via micom eeprom C series
Posted: Fri Mar 07, 2014 11:13 pm
To complete my case i attached both states (1st active and 2nd active) as dumps of my micom EEPROM. Mind attachement comments.
Just for information: if you compare both that dumps with the one i posted previously (Micom_EEPROM_after_toggle_try.zip) you will figure out that the ascii string 'ger' changed to 'eng'. The reason is that tv was set to german before my tv's brick and after unbricking it let me walk through the setup-up steps where i chose englisch to quickly pass that. juuso' dumps show 'spa' so that dumps will most probably have been made on a tv set to spanish
Just for information: if you compare both that dumps with the one i posted previously (Micom_EEPROM_after_toggle_try.zip) you will figure out that the ascii string 'ger' changed to 'eng'. The reason is that tv was set to german before my tv's brick and after unbricking it let me walk through the setup-up steps where i chose englisch to quickly pass that. juuso' dumps show 'spa' so that dumps will most probably have been made on a tv set to spanish