Samsung ue49mu6120

[lotas]

Re: Samsung ue49mu6120

Sorry for the late replay.First thanks for the super quick replay.Second no luck the TV with the new firmware does not power on.I suspect I missed something on the MB...

Read this topic from post 18, you probably have the same problem (status register).

[n1ckl3m0d]

Re: Samsung ue49mu6120

Hi
I have a UE55MU6400, board BN41-02568B, with the same symptoms, will not turn on, no standby light but when i remove the psu cable from main board the leds light up. I unsoldered the ic1604 and did a firmware dump. can someone kindly give me a hand? Thanks in advance

[lotas]

Re: Samsung ue49mu6120

Hi
I have a UE55MU6400, board BN41-02568B, with the same symptoms, will not turn on, no standby light but when i remove the psu cable from main board the leds light up. I unsoldered the ic1604 and did a firmware dump. can someone kindly give me a hand? Thanks in advance

Try.

[n1ckl3m0d]

Re: Samsung ue49mu6120

Try.

It Works!!!!! Thank you so much!!!

[iu3ohw]

Re: Samsung ue49mu6120

Hello,

I have a Samsung UE49MU6120KXZT that seems to have same problem depicted in previous posts.. TV seems dead, any response to any stimulus, when cpu board is disconnected, backlight goes on and power supply to the cpu board seems ok.

I read previous posts and learn about fixing of the memory chip ic1604.
It worth to try if this is the problem so I got a Xgecu programmer and dumped the memory down.

Could you kindly help me to verify and try fix the memory content?
Please find attached the bin file of the memory.
Thankyou in advance!!!

[lotas]

Re: Samsung ue49mu6120

Hello,

I have a Samsung UE49MU6120KXZT that seems to have same problem depicted in previous posts.. TV seems dead, any response to any stimulus, when cpu board is disconnected, backlight goes on and power supply to the cpu board seems ok.

I read previous posts and learn about fixing of the memory chip ic1604.
It worth to try if this is the problem so I got a Xgecu programmer and dumped the memory down.

Could you kindly help me to verify and try fix the memory content?
Please find attached the bin file of the memory.
Thankyou in advance!!!

Try.

[iu3ohw]

Re: Samsung ue49mu6120

Hello Lotas, thankyou for your response..

Only Yesterday I had the chance to try your bin.

Unfotunately is not working.

I tried 2 time to program the EEprom, verification after programming succeded, but after soldering on the board, and turn on by the switch in the rear of the TV (I have no remote) Is not working.

Desoldering and verifying the rom content I find the content is different. Actually the memory range between 0x000000 and 0x000FFF is filled with 0xFF

I can't see what is the cause of this behavior.. maybe a cpu malfunction?

Do you have another suggestion on how could I figure out this problem?

Thankyou for your support,

regards

[lotas]

Re: Samsung ue49mu6120

Hello Lotas, thankyou for your response..

Only Yesterday I had the chance to try your bin.

Unfotunately is not working.

I tried 2 time to program the EEprom, verification after programming succeded, but after soldering on the board, and turn on by the switch in the rear of the TV (I have no remote) Is not working.

Desoldering and verifying the rom content I find the content is different. Actually the memory range between 0x000000 and 0x000FFF is filled with 0xFF

I can't see what is the cause of this behavior.. maybe a cpu malfunction?

Do you have another suggestion on how could I figure out this problem?

Thankyou for your support,

regards

This will be the case, you need to set status register 0x88 and 0x42 after writing 25Q40, read this topic first, I wrote here in detail.

[Diah]

Re: Samsung ue49mu6120

This will be the case

Lotas.. did you managed to rehanged HEX or you have data bank under hand for samsung.. i d admire your posts allot. pm if you cant say it in public... thank.

[lotas]

Re: Samsung ue49mu6120

Lotas.. did you managed to rehanged HEX or you have data bank under hand for samsung.. i d admire your posts allot. pm if you cant say it in public... thank.

Thanks, yes, using a hex editor, I copy a part from a working dump to a non-working dump and save it.

[coofe]

Re: Samsung ue49mu6120

hello can i ask for help on my 55MU6172U same problem no standby.
IC1604 on pin 8 3.3v is ok 5v and 1.8v also
still no standby light
thx for help

[lotas]

Re: Samsung ue49mu6120

hello can i ask for help on my 55MU6172U same problem no standby.
IC1604 on pin 8 3.3v is ok 5v and 1.8v also
still no standby light
thx for help

Try.

[coofe]

Re: Samsung ue49mu6120

thx for help its not working , can i use same chip ? dont have new at moment
IC1606 missing 3.3

[lotas]

Re: Samsung ue49mu6120

thx for help its not working , can i use same chip ? dont have new at moment
IC1606 missing 3.3

Rather, after applying voltage, the firmware again flew off, you need to set the status of the register 0x88 and 0x42 after writing 25Q40.

[coofe]

Re: Samsung ue49mu6120

from colibri log
Selected device: W25Q40BV,Capacity: 512Kx8
Manufacturer: Winbond

JEDEC ID(9F) = 0xEF4013
RES ID(AB) = 0x001212
REMS ID(90) = 0x00EF12


Status Register1 = 0x88
Status Register2 = 0x42

Reading...
(Press Esc to cancel operation)
Reading completed,
reading time 3,96 sec.
Check Sum: CRC16 = 0xA314, CRC32 = 0x67F4FB33
Selected device: W25Q40BV,Capacity: 512Kx8
Manufacturer: Winbond

Status Register1 = 0x88
Status Register2 = 0x42

Reading...
(Press Esc to cancel operation)
Reading completed,
reading time 3,97 sec.
Check Sum: CRC16 = 0xA314, CRC32 = 0x67F4FB33


status is ok ?

[lotas]

Re: Samsung ue49mu6120

Yes, now install on the board.

[coofe]

Re: Samsung ue49mu6120

still K.O.
log from RT809H is ok


035: Chip pins contact is detected OK.
036: Chip ID verification OK.
037: UniqueID:0x25DE706748646757
038: Start writing chip......
039: Auto erasing...
040: Erase successful£¬Elapsed time£º0.686 seconds¡£
041: Start writing...
042: Write successful£¬Elapsed time£º1.045 seconds¡£
043: Auto verifying...
044: Verification successful£¬Elapsed time£º0.196 seconds¡£
045: Status Register-1 : 0x88 , Status Register-2 : 0x42 .
046: Elapsed time: 1.282 seconds£¬average speed of 408960 bytes/sec.
047: >------------------------------------OK---------------------------------------<

[lotas]

Re: Samsung ue49mu6120

still K.O.
log from RT809H is ok


035: Chip pins contact is detected OK.
036: Chip ID verification OK.
037: UniqueID:0x25DE706748646757
038: Start writing chip......
039: Auto erasing...
040: Erase successful£¬Elapsed time£º0.686 seconds¡£
041: Start writing...
042: Write successful£¬Elapsed time£º1.045 seconds¡£
043: Auto verifying...
044: Verification successful£¬Elapsed time£º0.196 seconds¡£
045: Status Register-1 : 0x88 , Status Register-2 : 0x42 .
046: Elapsed time: 1.282 seconds£¬average speed of 408960 bytes/sec.
047: >------------------------------------OK---------------------------------------<

If it still does not turn on, try this dump.

[coofe]

Re: Samsung ue49mu6120

Working
Thank you so much
What was the difference ?

[lotas]

Re: Samsung ue49mu6120

Working
Thank you so much
What was the difference ?

Apparently the wrong version did not match.