Search found 80 matches

by hedak
Sat Jan 11, 2014 4:54 pm
Forum: [C] Hardware
Topic: C Series EEPROM research
Replies: 17
Views: 10055

Re: C Series EEPROM research

Sorry for posting twice succesively, but i think its useful if anyone wants to link to the post with a C7700 SoC EEPROM dump! sbav1 was right, its been the 4256BRP chip. The dump is attached. Its comparable to juuso' dump. There's only the question where the watchdog flag is located. It's definitive...
by hedak
Sat Jan 11, 2014 11:14 am
Forum: [C] Hardware
Topic: C Series EEPROM research
Replies: 17
Views: 10055

Re: C Series EEPROM research

:D Great finding! Accidentally i found your posting here a few hours ago: http://forum.samygo.tv/viewtopic.php?f=9&t=4707&start=10#p35663 I think your right. In my MB there are also two other 8 pin EEPROMS: 4256BRP and S24CS0. I think it's the first one (placed on the backside), cause its wired to t...
by hedak
Fri Jan 10, 2014 9:31 pm
Forum: [C] Hardware
Topic: C Series EEPROM research
Replies: 17
Views: 10055

Re: C Series EEPROM research

Ok, maybe an option! Braunschweig isn't that far away from you (and your buddy?) ;)

But i cannot say if the C6700 is suitable to a C7700. But i guess juuso can :)
by hedak
Fri Jan 10, 2014 9:20 pm
Forum: [C] Hardware
Topic: [solved] Cycle reboot UE46C7700 - T-VALDEUC
Replies: 68
Views: 19781

[solved] Cycle reboot UE46C7700 - T-VALDEUC

Hallo SamyGO experts :) Problem: My C7700 (T-VALDEUC-3011.0) is in a reboot loop. It reboots every 6.5 seconds. UART debug log is attached. Reason (i guess): The hash of /dev/st10/17 (/mtd_exe) is wrong and thus TV refuses to boot completely. As i didn't disable the watchdog in service menu the TV c...
by hedak
Fri Jan 10, 2014 8:06 pm
Forum: [C] Hardware
Topic: C Series EEPROM research
Replies: 17
Views: 10055

Re: C Series EEPROM research

Unforunately i dont know any service man. What surprises me is that my dumps remain the same after each reboot! BTW i attached my dump to my previous post - would you be so kind and have a short look at it? What du you think is the risk of trying to change the bit at 0xFCD6 to 0? Should i try? Anoth...
by hedak
Fri Jan 10, 2014 6:19 pm
Forum: [C] Hardware
Topic: C Series EEPROM research
Replies: 17
Views: 10055

C Series EEPROM research

Hallo SamyGo community, based on D Series EEPROM research (http://forum.samygo.tv/viewtopic.php?f=23&t=5371), i'd like to start a research for C Series EEPROM. ATM my UE46C7700 is bricked: Reboot loop every 6.5 seconds. As I think the reason for this reboot loop is the active watchdog which I'd like...
by hedak
Fri Jan 10, 2014 5:00 pm
Forum: [C] Hardware
Topic: eeprom`s database for unbricking.
Replies: 4
Views: 28974

Re: eeprom`s database for unbricking.

TV model: UE46C7700
Mainboard part No: BN94-02725B on the sticker

Pictures see here: viewtopic.php?f=23&t=5371#p53678
by hedak
Thu Jan 09, 2014 8:36 pm
Forum: [D] Hardware
Topic: D series SoC eeprom research
Replies: 18
Views: 11410

Re: D series SoC eeprom research

Today's status report: I disassembled the TV the first time and looked for the EEPROM. I finally found it on the backside of the main PCB - its a AT24C512B. I soldered wires on its VCC and GND to check operationg voltage: 3.3V (its only powered when TV is active). BTW my TV resets itself after 6.5 s...
by hedak
Wed Jan 08, 2014 9:56 pm
Forum: [D] Hardware
Topic: D series SoC eeprom research
Replies: 18
Views: 11410

Re: D series SoC eeprom research

Wow, that was quick! My problem is that TV restarts every 20 seconds... But that should be enough time to do one dump and later change one bit. I just hope the offsets dont differ :/ I really don't want to desolder it, before doing at least one dump (I learned when modifying my PS3 ;) ) I'm using Te...
by hedak
Wed Jan 08, 2014 9:32 pm
Forum: [D] Hardware
Topic: D series SoC eeprom research
Replies: 18
Views: 11410

Re: D series SoC eeprom research

Hallo EEPROM researcher, although this thread is a little old, i will ask this single question here cause it just belongs here: How did you power the SoC eeprom (TV in standby/TV turned on/externally soldered/externally unsoldered)? (On the picture in the first post I can see 4 wires soldered to the...

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