I have a PT-K1500 device, but when I connect it to my PC, it is asking for a password. Is there any default password for PT-K1500?
PT-K1500 is an old device and from what it seems, its default password is 0000. If you can't access the phone using this code, I suggest you contact the manufacturer. You can get in touch with them using the contact form from the official web page.