Cannot scan bar codes

DiscussionsBug Collectors

Rejoignez LibraryThing pour poster.

Cannot scan bar codes

1bbnuser
Juin 4, 2022, 6:54 am

I have just signed up for the desktop and app both. I am trying to use my phone to scan the bar codes, but no matter what I do, they won't scan. I wave the bar code in front of the box, near and far, click "focus" many times, and I get nothing. In other apps the scan function works fine. I have granted permission to use the camera. What am I doing wrong? Android app v 1.1.2 (build 29)

2kristilabrie
Modifié : Juin 6, 2022, 12:42 pm

Sorry for your trouble! To be clear, you have this app downloaded: https://play.google.com/store/apps/details?id=com.librarything.librarything&..., correct?

Do you have proper lighting while scanning your barcodes? Is the scanner failing to scan on just one barcode, or many? Can you send one or two photos of barcodes that are failing to scan for you? (You can upload them to your LT profile's junk drawer gallery, and then link to them in your response here.) Are you seeing any error message/s when trying to scan, or is nothing happening at all when you hover your scanner/camera over the barcode? Thanks for any extra details you can provide here.

3bbnuser
Juin 8, 2022, 7:37 am

Yes, that is the correct app, downloaded from Google Play.

Yes, lighting is fine. I even tried turning on the camera's light.

Any barcode can't be scanned. Yet, in other apps barcodes (either QR or UPC) are scanned instantly.

No error message. Just wave the code in front of the rectangle while nothing happens.

I made a screen recording. Ignore the amber color, that's my night time filter that removes blue light that keeps you awake.

https://www.veed.io/view/86dc8410-5466-4207-9a37-46511734a7d4

4kristilabrie
Modifié : Mar 3, 2023, 3:39 pm

>3 bbnuser: Thanks! I have a couple of ideas:

1. The barcodes you tested with have another barcode directly next to the ISBN barcode: this is likely causing issues with the app being able to scan just the ISBN barcode. try positioning the scanner in such a way that it's not going over the non-ISBN barcode at all, and see if that helps.
2. The nighttime filter (I assume this is on your phone) might be conflicting with the scanner in the app, but I can't be sure. You may want to try turning that off within your troubleshooting.

Let me know how the above testing goes!