Nook GlowLight Plus not recognized/very slow

[sweth]

I have a Nook GlowLight Plus that Calibre only recognizes occasionally (about 1 in 10 times?) and that, when it *is* recognized, about half the time is VERY slow--Calibre takes literally hours to do an initial read of the contents of the device. I don't think it's the cable, as I've tried multiple cables and with all of them, the device *is* visible every time to the OS.

Device debug output is:

calibre 3.40.1  embedded-python: True is64bit: True
Darwin-17.7.0-x86_64-i386-64bit Darwin ('64bit', '')
('Darwin', '17.7.0', 'Darwin Kernel Version 17.7.0: Wed Feb 27 00:43:23 PST 2019; root:xnu-4570.71.35~1/RELEASE_X86_64')
Python 2.7.15
OSX: ('10.13.6', ('', '', ''), 'x86_64')
Interface language: None
Successfully initialized third party plugins: DeDRM (6, 3, 4) && Save Virtual Libraries To Column (2, 0, 0) && Annotations (1, 8, 1) && Overdrive Link (2, 33, 0) && Quality Check (1, 9, 11) && Find Duplicates (1, 6, 3) && Barnes & Noble (1, 2, 15) && Read MP3 AudioBook metadata (1, 0, 79) && Ex Libris (1, 0, 19) && Count Pages (1, 8, 2) && KePub Metadata Reader (3, 0, 2) && Save Virtual Libraries To Column GUI (2, 2, 1) && KoboTouchExtended (3, 0, 2) && KePub Output (3, 0, 0) && Extract ISBN (1, 4, 4) && Goodreads (1, 4, 0) && Goodreads Sync (1, 12, 1) && EpubSplit (2, 6, 0) && Kobo Utilities (2, 7, 0) && Reading List (1, 6, 6) && WorldCat xISBN (1, 0, 0) && KePub Input (3, 0, 0) && KindleUnpack - The Plugin (0, 81, 5) && View Manager (1, 5, 2) && KePub Metadata Writer (3, 0, 3) && EpubMerge (2, 5, 0) && Overdrive Link* (2, 33, 0)
USB devices on system:
[['0x5ac',
  '0x274',
  '0x624',
  u'Apple Inc.',
  u'Apple Internal Keyboard / Trackpad',
  u'D3H5325A961FTV4AM4BS'],
 ['0x5ac',
  '0x8290',
  '0x167',
  u'Broadcom Corp.',
  u'Bluetooth USB Host Controller',
  None],
 ['0x2080',
  '0xa',
  '0x9999',
  u'BarnesAndNoble',
  u'BNRV510',
  u'5072610072313153']]

Disabled plugins: KOBO KOBOTOUCH
 
Looking for devices of type: MTP_DEVICE
MTP devices connected:
USBDevice(busnum=20, devnum=21, vendor_id=0x2080, product_id=0x000a, bcd=0x9999, manufacturer=BarnesAndNoble, product=BNRV510, serial=5072610072313153)

Trying to open: USBDevice(busnum=20, devnum=21, vendor_id=0x2080, product_id=0x000a, bcd=0x9999, manufacturer=BarnesAndNoble, product=BNRV510, serial=5072610072313153)
Opened NOOK successfully
Storage info:
[{'capacity': 3018891264L,
  'freespace_bytes': 2019774464L,
  'freespace_objects': 1073741824L,
  'id': 65537,
  'name': 'Internal storage',
  'removable': False,
  'rw': True,
  'volume_id': None}]

Any suggestions?

[theducks]

That output shows your device
The initial scan MUST complete ( might take hours).
Once that is done, Calibre writes 2 files to the device (one contains what-where). Subsequent connections should be lots quicker.
If those get removed, you will need to repeat the Long scan.

[sweth]

What might be removing those files? It seems to do a long scan about half of the time that it is recognized.

Also: most of the time, it doesn't do any scan at all, even though the device shows up in the debug output. Is that normal?

[theducks]

Originally Posted by sweth

What might be removing those files? It seems to do a long scan about half of the time that it is recognized.

Also: most of the time, it doesn't do any scan at all, even though the device shows up in the debug output. Is that normal?

The debug output just says you PC sees the device, Thus Calibre should also see it since it has previously.
I have no idea what might be killing the files calibre leaves behind. A rogue A/V?

I do notice you disabled a KOBO Touch. Is there a reason? (Preferences:Ignored devices)

[sweth]

Originally Posted by theducks

The debug output just says you PC sees the device, Thus Calibre should also see it since it has previously.
I have no idea what might be killing the files calibre leaves behind. A rogue A/V?

I do notice you disabled a KOBO Touch. Is there a reason? (Preferences:Ignored devices)

It's a disabled plugin, not a disabled device. I started using this older Nook after my Kobo died; for the latter, I was using the Kobo Touch Extended driver, which recommends disabling the Kobo Touch driver.

[kovidgoyal]

Your device's storage is likely failing. Reset it and/or re-format the disk might allow it to live a little longer.

[sweth]

Anyone know how to reformat the disk on a Nook Glowlight from a Mac? The only way to do direct access to a Nook from a Mac that I know of is via the Android File Transfer app, which opens a file browser but doesn't actually mount a volume.

[sweth]

Trying to get my hands on a Windows box to reformat the Nook, but in the interim: every time that the Nook does get recognized by Calibre and start the long scan, it now consistently runs for about 3 hours and then fails with this error:

calibre, version 3.40.1
ERROR: Error: Error communicating with device

Failed to delete (u'Internal storage', u'NOOK', u'metadata.calibre') with error: 2:PTP Layer error 02ff: LIBMTP_Delete_Object(): could not delete object.
2:Error 02ff: PTP: I/O error

Traceback (most recent call last):
  File "site-packages/calibre/gui2/device.py", line 87, in run
  File "site-packages/calibre/gui2/device.py", line 510, in _books
  File "site-packages/calibre/devices/mtp/driver.py", line 285, in books
  File "site-packages/calibre/devices/mtp/driver.py", line 311, in write_metadata_cache
  File "site-packages/calibre/devices/mtp/driver.py", line 151, in put_calibre_file
  File "site-packages/calibre/devices/mtp/base.py", line 26, in synchronizer
  File "site-packages/calibre/devices/mtp/unix/driver.py", line 394, in put_file
  File "site-packages/calibre/devices/mtp/base.py", line 26, in synchronizer
  File "site-packages/calibre/devices/mtp/unix/driver.py", line 439, in delete_file_or_folder
DeviceError: Failed to delete (u'Internal storage', u'NOOK', u'metadata.calibre') with error: 2:PTP Layer error 02ff: LIBMTP_Delete_Object(): could not delete object.
2:Error 02ff: PTP: I/O error

Not sure if that leads to any conclusion beyond "reformat" but thought I'd share it just in case.

[theducks]

Can you change the USB conn ON THE DEVICE to be MTP?
PTP is for photos

[sweth]

I'm not aware of any way to do so.