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Metapath · 02-20-2026, 05:38 PM

Just received my (on sale!) Nook GL4+ and installed KOReader v2025.10. Can't get the OPDS catalog to connect to my Calibre server. I know server works fine as I can connect on my iPad using both Safari browser and the OPDS catalog in KyBook3.

The error is 400 Bad Request.

KOR apk was: koreader-android-arm-v2025.10

Trying to determine if this isn't working due a KOR bug or problems running on the NGL4+, or something I did wrong.
Anybody have OPDS catalogs working on this version of KOR?

Thanks for any pointers.

02-20-2026, 05:38 PM	#1
Metapath Enthusiast Posts: 33 Karma: 10 Join Date: Aug 2014 Device: iPad	KOReader and OPDS not working on Nook Just received my (on sale!) Nook GL4+ and installed KOReader v2025.10. Can't get the OPDS catalog to connect to my Calibre server. I know server works fine as I can connect on my iPad using both Safari browser and the OPDS catalog in KyBook3. The error is 400 Bad Request. KOR apk was: koreader-android-arm-v2025.10 Trying to determine if this isn't working due a KOR bug or problems running on the NGL4+, or something I did wrong. Anybody have OPDS catalogs working on this version of KOR? Thanks for any pointers.