Un50mu6070 Mainboard issue

[Storyteller12]

Re: Un50mu6070 Mainboard issue

I bought a new programmer and didn’t do the mod.

Model listed by Lotas.

Rt809f

[crym1111]

Re: Un50mu6070 Mainboard issue

Hi lotas,
I have a motherboard from Samsung UE49MU6202, code BN94-12424C and don't have stand-by led active, attached 25Q40 that probably need to be fixed.
Can you help me?

[crym1111]

Re: Un50mu6070 Mainboard issue

Forget to tell you, i have RT809H programmer...

[lotas]

Re: Un50mu6070 Mainboard issue

Hi lotas,
I have a motherboard from Samsung UE49MU6202, code BN94-12424C and don't have stand-by led active, attached 25Q40 that probably need to be fixed.
Can you help me?

Ok, I'll try, you are familiar with the status of the register, what needs to be set, without it the firmware will fly off again when you turn it on for the first time.

[crym1111]

Re: Un50mu6070 Mainboard issue

I see that you write in the post:
In the program:
1. Click "Detect Chip" and select W25Q40CL and "Select IC".
2. Click "Unprotect".
3. Click "Erase IC" and "Yes".
4. Click "Open File" and select your corrected Dump.
5. Press "Program IC" and "Yes".
6. Click "Verify IC".
7. Press the down arrow to the right of "Unprotect" and select "Edition SREG", put a check mark on S7, S3, S14, S9 and press "Write" and "Yes"
7. Close the program. Ready.

[crym1111]

Re: Un50mu6070 Mainboard issue

On RT809H interface must be set anything in tab Protect when you read W25Q40 ?
Because i see your info when you have to click to programming IC's...

[lotas]

Re: Un50mu6070 Mainboard issue

https://www.badcaps.net/forum/showpo...1&postcount=17

Try

[crym1111]

Re: Un50mu6070 Mainboard issue

Hi Lotas,
I deactivate protection and erase two ic's, tested as blank.
Write each of versions that you fixed for me and protect both ic's...no one was working...
Any ideea?

[lotas]

Re: Un50mu6070 Mainboard issue

Write down any dump (you need to look with which one it will start, it can start with any) after recording, set S.R. 0x88, 0x42 and hit "write".

And it is not clear why you are erasing two microcircuits, what else have you erased? There is one chip 25Q40.

[crym1111]

Re: Un50mu6070 Mainboard issue

I erase two ic's and write each of them with those two versions received, set SR as you recommend you, tested one by one but no stand-by led active...

[lotas]

Re: Un50mu6070 Mainboard issue

I see that you write in the post:
In the program:
1. Click "Detect Chip" and select W25Q40CL and "Select IC".
2. Click "Unprotect".
3. Click "Erase IC" and "Yes".
4. Click "Open File" and select your corrected Dump.
5. Press "Program IC" and "Yes".
6. Click "Verify IC".
7. Press the down arrow to the right of "Unprotect" and select "Edition SREG", put a check mark on S7, S3, S14, S9 and press "Write" and "Yes"
7. Close the program. Ready.

I wrote this instruction for CH341A (AsProgrammer and NeoProgrammer)

[lotas]

Re: Un50mu6070 Mainboard issue

Now you can read the Dump after installing it on the board, and post it here again, I'll take a look at the contents.

[lotas]

Re: Un50mu6070 Mainboard issue

Do you have two new 25Q40 chips or one native second from a donor?

[crym1111]

Re: Un50mu6070 Mainboard issue

One of ic's that i tested, attach read file.

[crym1111]

Re: Un50mu6070 Mainboard issue

i don't have new pieces but i can erase and are checked as blank.

[lotas]

Re: Un50mu6070 Mainboard issue

Try

[crym1111]

Re: Un50mu6070 Mainboard issue

kind regards, i will tested soon.

[crym1111]

Re: Un50mu6070 Mainboard issue

again, no...

[crym1111]

Re: Un50mu6070 Mainboard issue

i'm so sorry about all your effort

[Diah]

Re: Un50mu6070 Mainboard issue

lotas modifying are correct , the problem with active STBY LED indicator are HW issue not SW.