CH341A Unable to Read BIOS Chip on DA0R53MB6E1 Motherboard

[Zentech]

Ok, I have a laptop motherboard who does not want to turn on. So I isolated the problem to either a BIOS or KBC problem. So I'm trying to read the software from the BIOS chip, and I get a wierd file. (all F's) I'm going to attached the file to this post. I'm using CH341A miniprogrammer usb board. And for the software, I'm using AsProgrammer v1.4.1. So I'm worried that BIOS software might have come corrupted, or it also could be that it is not reading from BIOS properly due to driver issues.
Power led is on and when I press read on software, the communication led comes on. However, when I try to read, is telling me to unprotect the chip first. This is first time doing this.
Motherboard: DA0R53MB6E1 Rev E R53
board schematic: http://www.s-manuals.com/pdf/motherb...schematics.pdf
BIOS Chip: EN25Q32B
AsProgrammer https://github.com/nofeletru/UsbAsp-flash/releases
CH341A usb board: https://rb.gy/6hj9ey

[diif]

Are you reading the chip off the board or in circuit ?

[ACS-Repair]

A BIOS chip that has all "FF" means it's either erased or the programmer is not detecting the chip properly. The default memory buffer is all "FF" as well so it's not always easy to tell which it is. The error message you are getting might be telling you that the chip selection is not right. Double check or try the "Detect my chip" option.

[Zentech]

Originally Posted by diif

Are you reading the chip off the board or in circuit ?

I tried both with same result... but now I soldered to a small board that came with usb board

[Zentech]

Originally Posted by ACS-Repair

A BIOS chip that has all "FF" means it's either erased or the programmer is not detecting the chip properly. The default memory buffer is all "FF" as well so it's not always easy to tell which it is. The error message you are getting might be telling you that the chip selection is not right. Double check or try the "Detect my chip" option.

I have "verify ic" button? is that the one you're talking about?
I click on that button and it seems to be reading the ic and then it gives me all F's

[Zentech]

Originally Posted by ACS-Repair

A BIOS chip that has all "FF" means it's either erased or the programmer is not detecting the chip properly. The default memory buffer is all "FF" as well so it's not always easy to tell which it is. The error message you are getting might be telling you that the chip selection is not right. Double check or try the "Detect my chip" option.

I tried "read ic" button the one with "?" mark and it is not detecting... this is what I get

Current programmer: CH341
ID(9F): FFFFFF(Unknown)
ID(90): FFFF(Unknown)
ID(AB): FF(Unknown)
ID(15): FFFF(Unknown)

if I select the chip model EN25Q32B and then I select "read ic" the one with an arrow -> then the button progress bar seems to be reading the ic, and I get all F's

[Stevedb]

Did you use the programmer before. Did you put the jumper at the right place.?

You can use this programma also Colibri and Neoprogrammer.

Can you sent picture of your programmer how you set it up and you must use auto detect the chip.


Good luck

Best regards

Steve

[Zentech]

Originally Posted by Stevedb

Did you use the programmer before. Did you put the jumper at the right place.?

I watched a few videos on youtube that addressed the jumper issue and I believe is on the right place... I will attached pic

You can use this programma also Colibri and Neoprogrammer.

I will give those a try next

Can you sent picture of your programmer how you set it up and you must use auto detect the chip.

I don't see an auto detect button on AsProgrammer

[Zentech]

wouldn't be better to buy it already programmed.. I have not found anyone who offer the service. This has proven to be something that it doesn't work very stable.

[Zentech]

ok, I'm giving NeoProgrammer a go and I'm getting this message

Programmer for MCU, AVR, SPI FLASH/EEPROM, I2C, Microwire,  v2.1.0.19
Current programmer: CH341
IC not responding

[Stevedb]

Hi

Yes the jumper is on the right place. It is very strange that he didn't see your chip. Do light the lights on your usb programmer. Did you try also read another bioschip? Maybe this chip is faulty.

I got never had problems wit not reading the chip.

[ACS-Repair]

I haven't used the programmer you are using. I bought another inexpensive one on ebay called EZP2019. It's really more for hobby use but it has worked well for me.

[Guilty_2121]

if you are using cable between ch341a and chip, use it less than 3cm, check connections good. Don't let any weak pin connetions. when connections good you have to try other programs like neoprogrammer, asprogrammer or ch341 but different versions.

[SMDFlea]

Originally Posted by Zentech

ok, I'm giving NeoProgrammer a go and I'm getting this message

Programmer for MCU, AVR, SPI FLASH/EEPROM, I2C, Microwire,  v2.1.0.19
Current programmer: CH341
IC not responding

Have you checked if the board needs the 3.3V mod . https://www.chucknemeth.com/usb-devi.../3v-ch341a-mod

[Zentech]

Originally Posted by Guilty_2121

if you are using cable between ch341a and chip, use it less than 3cm, check connections good. Don't let any weak pin connetions. when connections good you have to try other programs like neoprogrammer, asprogrammer or ch341 but different versions.

I solder the chip onto the board that comes with the usb board, instead of using the cable. I tested continuity with the meter and is good, but it is not recognized by the program...

[j.bisous]

Originally Posted by Zentech

I solder the chip onto the board that comes with the usb board, instead of using the cable. I tested continuity with the meter and is good, but it is not recognized by the program...

Did you checked the continuity between your board and the CH431A socket too? It can happen that there is a bad connection at this point. Try not to push it completely into the socket so it can fit properly when you close it.

Good luck.

[Zentech]

Originally Posted by SMDFlea

Have you checked if the board needs the 3.3V mod . https://www.chucknemeth.com/usb-devi.../3v-ch341a-mod

I did the modification but still not reading/detecting the chip... any other ideas

[Zentech]

is there any way to verify on the programmer board that it is working?... does anyone has the schematic for ch341a

[Zentech]

I double checked the voltages of the chip while connected to ch341a and it has 3.3V in ping 8,7,3.. as specified on schematic... from there I don't know what else to check

[Zentech]

Finally got it working... thank all