Dead acer 7750g

[giulio93]

Re: Dead acer 7750g

Read off the laser markings from the top side of the IC. Post the details here.

I post it in mess #57

[mon2]

Re: Dead acer 7750g

This is a SPI flash device.

So start with the vendor = 'MACRONIX' in the programmer s/w.

Then look for SPI style -> then the part number showing on the digikey webpage.

[giulio93]

Re: Dead acer 7750g

This is a SPI flash device.

So start with the vendor = 'MACRONIX' in the programmer s/w.

Then look for SPI style -> then the part number showing on the digikey webpage.

Can I use the bin file on the acer site for the 7750g?

[giulio93]

Re: Dead acer 7750g

This is a SPI flash device.

So start with the vendor = 'MACRONIX' in the programmer s/w.

Then look for SPI style -> then the part number showing on the digikey webpage.

It's sufficient I make a backup file (read and save in the sw neoprogrammer), so I erese the chip and then I copy the .bin file. Is it correct?

[mon2]

Re: Dead acer 7750g

I will suggest to:

1) make a backup of your current flash chip for safety. do not lose this file.

2) download the bios file from the Acer website for this model.

3) erase the chip with your programmer. Confirm that the chip is erased with the programming software.

4) then flash and verify the flash device with the acer bios image you downloaded from step # 2.

[giulio93]

Re: Dead acer 7750g

I will suggest to:

1) make a backup of your current flash chip for safety. do not lose this file.

2) download the bios file from the Acer website for this model.

3) erase the chip with your programmer. Confirm that the chip is erased with the programming software.

4) then flash and verify the flash device with the acer bios image you downloaded from step # 2.

Ok. I have to use the .bin file, correct? in the folder is present also a .ROM

[mon2]

Re: Dead acer 7750g

Post the names and size of each file you are referencing.

The correct one will match the size of the flash device you are using.

[giulio93]

Re: Dead acer 7750g

Post the names and size of each file you are referencing.

The correct one will match the size of the flash device you are using.

P5WE0121.bin 4096KB
K17C121C.ROM 128KB

I don,t understand the last sentence

[mon2]

Re: Dead acer 7750g

Use this file to reflash your memory device:

P5WE0121.bin 4096KB

See attached.

The density of the flash IC = 4M x 8 = 4096KB (kilobytes) which matches the above .bin file in size.

[giulio93]

Re: Dead acer 7750g

Use this file to reflash your memory device:

P5WE0121.bin 4096KB

See attached.

The density of the flash IC = 4M x 8 = 4096KB (kilobytes) which matches the above .bin file in size.

I reprogram the chip succesfully but nothing change. I would like to reprogram the EC chip also. I notice that the one i had bought it's a different model to the original (according to the schematic). Original is MX25L1005 and the one the shop sent me is MX25L1006E. Are they the same? (are they swithcable?). Where can I find a bin file for this chip? Thank you

[giulio93]

Re: Dead acer 7750g

Could be the K17C121C.ROM file 128KB taken from the Acer site? (it's in the same folder of the main bios chip)

[giulio93]

Re: Dead acer 7750g

I tried to reprogram the EC chip too with the K17C121C.ROM file ( i do the same procedure used for the .bin, is it correct?) but the result is the same. What do i have to do?
the cpu is hot, the fan is spinning but nothing on screen
Thank you