GD25LQ128C/D error

[Tim Tech]

Hello, I have flashed this chip in the past but suddenly I keep getting
this error when writing/verification. I tried two separate flashrom
versions, I'll post both error messages below:

agimb@agimb-electro:~$ sudo ./flashrom -p ch341a_spi -w rom.rom

flashrom v1.2-99-gfbb2b25f61 on Linux 5.15.0-53-generic (x86_64)

flashrom is free software, get the source code at https://flashrom.org

Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns).

Found GigaDevice flash chip "GD25LQ128C/GD25LQ128D" (16384 kB, SPI) on
ch341a_spi.
===
This flash part has status UNTESTED for operations: PROBE READ ERASE WRITE
The test status of this chip may have been updated in the latest development
version of flashrom. If you are running the latest development version,
please email a report to [e-mail] if any of the above
operations
work correctly for you with this flash chip. Please include the flashrom log
file for all operations you tested (see the man page for details), and
mention
which mainboard or programmer you tested in the subject line.
Thanks for your help!
Reading old flash chip contents... done.
Erasing and writing flash chip... Erase/write done.
Verifying flash... FAILED at 0x00002fc3! Expected=0x44, Found=0x04, failed
byte count from 0x00000000-0x00ffffff: 0x83
Your flash chip is in an unknown state.
Please report this on IRC at chat.freenode.net (channel #flashrom) or
mail [e-mail], thanks!

-----------------------------------------------------------------------------------------------------------------------

sudo ./flashrom -p ch341a_spi -w rom.rom
flashrom v1.2-1028-gbd8a02de6c on Linux 5.15.0-53-generic (x86_64)
flashrom is free software, get the source code at https://flashrom.org

Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns).
Found GigaDevice flash chip "GD25LQ128C/GD25LQ128D/GD25LQ128E" (16384 kB,
SPI) on ch341a_spi.
Reading old flash chip contents... done.
Erasing and writing flash chip... Erase/write done.
Verifying flash... FAILED at 0x000168e3! Expected=0x57, Found=0x17, failed
byte count from 0x00000000-0x00ffffff: 0x37
Your flash chip is in an unknown state.
Please report this to the mailing list at [e-mail] or
on IRC (see https://www.flashrom.org/Contact for details), thanks!

Thank you,
Tim

[Nico Huber]

Hi Tim,

On 01.12.22 17:38, Tim Tech wrote:
> Hello, I have flashed this chip in the past but suddenly I keep getting
> this error when writing/verification. I tried two separate flashrom
> versions, I'll post both error messages below:

it looks like a communication error. It seems possible, that you could
succeed simply by trying again. If you look at the numbers:
> Verifying flash... FAILED at 0x00002fc3! Expected=0x44, Found=0x04, failed
> byte count from 0x00000000-0x00ffffff: 0x83

and later
> Verifying flash... FAILED at 0x000168e3! Expected=0x57, Found=0x17, failed
> byte count from 0x00000000-0x00ffffff: 0x37

the error count got lower. This is possibly because flashrom only writes
when it sees different flash contents compared to what it is about to
write.

I would just try again as long as the "failed byte count" gets lower.

If that doesn't help, try to read (-r) and verify (-v) a few times. Only
if reading is reliable, it makes sense to try to write. If it isn't,
common issues are wire length (we recommend <=20cm) or a clip (if there
is any) that's making a bad connection.

Hope that helps,
Nico