Choosing programmer

[valerio_vanni]

Today I will get the T48, but I fear it will fail too. It seems that that MB is jelous of its chip.
After that trial, I will search for someone able to desolder the chip.

I got the T48, result was a bit different but not better.
The other programmers didn't detect the chip and read random data (each take different).
The T48 detects the chip, but it reads all FF.

Today I brought the board to a technician to get the chip desoldered.

Now I've tried, again with T48, and same result as with clamp: chip detected but read all FF.

Finally, I tried again with other programmers (The EPZ2023+ and the CH341A with voltage selector): now they read better, since they can detect the chip and read no more random data.
But they read all FF, it seems that this chip is empty.

[lotas]

Maybe they damaged the data (Dump) when they tried to experiment with their EPZ2023+ and CH341A programmers....

[valerio_vanni]

They? There was only me...
I only tried reading with EZP2023+ and a CH341A with voltage selector. Never with a 5V one.

[lotas]

I'm talking about you and your programmers and experiments with reading dump. Previously, at least something was read, but now it's empty (FF, FF, FF...).

Have you cleaned the chip's pins and degreased them with isopropyl alcohol? Could you please take a photo of the T48 programmer's log when reading the dump? I'd like to see what the programmer outputs.

[valerio_vanni]

I'm talking about you and your programmers and experiments with reading dump. Previously, at least something was read, but now it's empty (FF, FF, FF...).

Could not it be that those random reads were caused from motherboard interference?

Have you cleaned the chip's pins and degreased them with isopropyl alcohol? Could you please take a photo of the T48 programmer's log when reading the dump? I'd like to see what the programmer outputs.

I tried with common alcohol.

This is a picture when it completes reading: is this what you meant?

[lotas]

Yes, it's all sad, in addition to the dump itself, you lost your SN, DMI and Windows key
Now we need to restore everything...

[m1ch43lzm]

Could not it be that those random reads were caused from motherboard interference?


I tried with common alcohol.

This is a picture when it completes reading: is this what you meant?

Read looks OK, it detected the chip ID correctly
If using clip lower SPI Clock to 8MHz to try to avoid interference due to wire length, with a SOP8 socket adapter (chip desoldered from the board) it's fine to read at 30MHz (default setting)
Scroll down to around 210000 and check if you have data, this is what it should look like, I actually flashed another 15-bs1xx BIOS to this "test" chip



Already replied on the BIOS request thread, the S/N, etc can be fixed (minus the Win key)

[valerio_vanni]

I'll try to look at that location (with a fast scroll, I saw only FF).
It was desoldered and on socket adapter. I remember I also tried the lowest speed.