Nowadays I do not have a PC, nor a laptop.

One of my friends have a laptop, but we have not tried connecting the smartphone to it so far.

We are very busy, and the electricity is also limited (there is no electricity in our small wood houses, only in the kitchen and in the office).

And to make a backup of the WhatsApp chats on that smartphone, probably the touchscreen replacement is needed anyway.

But probably soon we will try to connect the smartphone to a PC/laptop to see if any backup is possible that way (the touchscreen of that smartphone is currently damaged, and currently it is not usable and readable on its biggest part).