I have find this two photo in my phone that is attached link at the end of content and I have tried by microscope to find number.
The  first number at first line is clear and it is 3750
The second number at second line is partly fogged and I guess it is 1809 or 1808.
I’ve googled both number and I didn’t find 6 pin on the internet therefore I have posted this issue to help to find the chip information or any replacement chip.
The act of circuit has written on the image and it is conver 13v to 17v.

Hi
I would like to know that what’s is the model of this chip.
The numbers which are printed on chipset are 3750
1809 or maybe1808
It has been located in boost circuit as I have marked by white arrow in following image.

I couldn’t find any information on internet.

Thanks BitMaxz
But in microbit site the latest version of firmware exist and in that version the SSH has been closed.
Do you know the version that has SSH access?
Or Do you know how can I enable the SSH access?

Hi everyone,
I have micrtobit whatsminer m21s, Is there any way to access SSH?
I have found an Image of firmware that access to SSH but not root access and just login with admin-admin and it has not root privileges to edit config files.
I have try root-root, root-blank but nothing work.
I will glad to here about the problem from you.
Regards