Backup the stock firmware fails

[Belaial]

Trying to backup the stock firmware fails for me, to the best of my knowledge I have followed the instructions so need to ask for help...

I am quite sure I am able to "Set the MCU to UART boot mode (#9)" since the stick does not start flashing all it's LEDs, only power LED is lit (if the stick boots regularly all the LEDs light up) if I try and read the stick with

sudo screen /dev/ttyUSB0 115200

I only get a continuous "spamming line" of "????????????" so I guess the baud rate might be wrong in this mode, I have tried 9600 also but that gives nothing.

Once in the mode where only the power LED is lit I try to run

./rtltool.py -p /dev/ttyUSB0 rf 0x8000000 0x800000 solis-s3-firmware-1012f.bin

But I get the following error

./rtltool.py -p /dev/ttyUSB0 rf 0x8000000 0x800000 solis-s3-firmware-1012f.bin File "/home/test/Desktop/solis/./rtltool.py", line 56 print 'Error: Open %s, %d baud!' % (port, baud) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)?

I am using the rtltool linked in the guide ( https://github.com/pvvx/RTL0B_SDK/blob/master/mkb/rtltool.py )

Any idea what I could be doing wrong? I have also tried with the stick not connected and the same error appears so I guess there is something wrong with my rtltool.py or the arguments I am trying to pass.

[hn]

Try using python2, e.g. python2 ./rtltool.py ...

[Belaial]

Forgot tom test that.... read about that here #2 now when you mentioned it.

New error,

python2 ./rtltool.py -p /dev/ttyUSB0 gf Traceback (most recent call last): File "./rtltool.py", line 9, in <module> import serial ImportError: No module named serial

Will try and Google that one also, maybe I can solve something myself :)

EDIT

pip install pyserial mentions it as already installed, but for python 3.10 as I see it, so probably some issues with me having both python 2 and 3, will Google some more.

EDIT2

After some Google it seems not to optimal to try and run both python 2 & 3 under the same Fedora 37, might just spin up a older Debian to dump the stock firmware.

I will close this ticket, the error is on my side for sure and not with the project at all.