My device (Kindle Paperwhite) is not found in calibre. I followed the steps to solve it until last one > Go to Preferences> Miscellaneous > Debug Device Detection > copy the output here.
calibre 4.10.1 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.22621-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.22621')
Python 2.7.16+
Windows: ('10', '10.0.22621', 'SP0', u'Multiprocessor Free')
Interface language: en_GB
USB devices on system:
(USBDevice(vendor_id=0x1949 product_id=0x324 bcd=0x409 devid=usb\vid_1949&pid_0324&rev_0409 devinst=7),
USBDevice(vendor_id=0x408 product_id=0x1043 bcd=0x3 devid=usb\vid_0408&pid_1043&rev_0003 devinst=1),
USBDevice(vendor_id=0x408 product_id=0x1043 bcd=0x3 devid=usb\vid_0408&pid_1043&rev_0003&mi_02 devinst=2),
USBDevice(vendor_id=None product_id=None bcd=None devid=usb\root_hub30&vid8086&pid02ed&rev0000 devinst=3),
USBDevice(vendor_id=0x8087 product_id=0xaaa bcd=0x2 devid=usb\vid_8087&pid_0aaa&rev_0002 devinst=4),
USBDevice(vendor_id=0x408 product_id=0x1043 bcd=0x3 devid=usb\vid_0408&pid_1043&rev_0003&mi_00 devinst=5),
USBDevice(vendor_id=0x45e product_id=0x76c bcd=0x83 devid=usb\vid_045e&pid_076c&rev_0083 devinst=6))
No disabled plugins
Looking for devices of type: MTP_DEVICE
List of WPD PNP ids:
[u'\\\\?\\swd#wpdbusenum#_??_usbstor#disk&ven_kindl e&prod_internal_storage&rev_0409#g001px11238207mj& 0#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}#{6ac27878-a6fa-4155-ba85-f98f491d4f33}']
No suitable MTP devices found
Looking for devices of type: SMART_DEVICE_APP
All IP addresses {u'{03A5DE86-9B63-4BD1-82DF-A82E90BEA1B6}': [{'broadcast': u'192.168.1.255', 'netmask': u'255.255.255.0', 'addr': u'192.168.1.132'}], u'{0A0C1AD8-2A39-11EB-9773-806E6F6E6963}': [{'broadcast': u'127.255.255.255', 'netmask': u'255.0.0.0', 'addr': u'127.0.0.1'}]}
No device is connected
Looking for devices...
Devices possibly connected: None