Troubleshooting

Please note most of the information here is geared to information used by one of our organisations, and so may not fit your needs at the moment. This will be edited soon.

How do I restart the Ledger App or the Scanner?

The Ledger App

For errors found inside the app.

Go to Recent Apps

If the device is an iPhone, swipe up from the bottom of the screen and hold. If the device is an Android, swipe up from the bottom of the screen and select the lower right icon.

Restarting App

Swipe the app up to close it, and wait a short while or a few seconds to make sure it fully refreshes. Re-enter the app.

The Scanner

For errors found when trying to scan or use the scanner itself.

Remove Scanner Handle Battery

There should be a battery inside the handle; there are two tabs on each side. Press these two tabs and pull back. You don’t have to fully detach the battery.

Reattach Scanner Handle Battery

Align the battery properly and press the battery fully back into the handle until you hear a click. Your scanner should turn on again. You may have to reconnect your scanner.

Reconnect Scanner to Device

Go to Reconnect Reader in Ledger and reconnect your device.

(Scanner Check) My scanner won’t scan.

Make sure to check if it’s a scanner error first!

Inspect Scanner Sled

You can check if the scanner still activates by quickly pointing the scanner at your palm and pressing the bottom trigger, checking if barcode scanning still works.

RFID testing

Navigate to the 123RFID Mobile app and, connecting your reader, attempt to scan RFID tags; this tests RFID scanning while not sending a bin.

Check Scanner Connection

Back out to the main menu and check if the reader is still connected. If it’s not connected, it will display red on the Bluetooth icon at the top left of the screen. Enter into Recover/Reconnect Scanner and attempt to reconnect your device if this happens again. Also, see My scanner isn’t connecting.

(Scanned Item) My scanner won’t scan.

Make sure to check Scanner Check first on the last page.

Large Sticker Code

In the Allocate screen, press the + button on the top right of the screen. If you can clearly see the code underneath the barcode (e.g. FOGO-0000), type it into the User search field and select the matching Bin. If you cannot see the code, please report this to your supervisor.

RFID Chip

You cannot substitute in a visible code in place like Large Sticker Code or Bin ID Code. Check your scanner (see part 1) first, and check under the lip of the bin. If there is no RFID Chip under the lip, please contact your supervisor. You can also check if the RFID chip was faulty by scanning the next RFID chip; be careful as if it is paired with a Bin ID, it will automatically register the full bin. You can fix this after scanning the next bin: see next page.

Bin ID Code

Make sure you are currently scanning a bin (see Large Sticker Code). If you can clearly see the code underneath the barcode (printed on the side of the Bin), enter that code. If you cannot see the code on the bin, please report this to your supervisor. You can still guess what the code would be if your bins are in order. For example, if Bin 3 is code 103 and Bin 5 is code 105, there is a good chance Bin 4 is 104.
Press the Bin ID field. Either type your code in, or use the + and - to adjust the bin ID to the correct one.

RFID or Bin ID is already on another bin

Let’s say Bin B has the same scanned info as Bin A, that was scanned a while ago. When this happens, this is usually because… When Bin A was scanned, the tag accidentally scanned was Bin B’s proper tag. Usually the RFID Chip. There was a misprint in tags and Bin A and Bin B have the same code. Easily detectable with Barcodes. You should be prompted to fix the conflict by entering the Conflict page.

How to use the Conflict page

Be careful! When you edit the fields in the Conflict page, this changes the other bin (Bin A), not the one you’re scanning right now (Bin B).

RFID Field

Scan the RFID field on the old bin, and make sure that it is different from the other bin. If the two do match, notify your supervisor. If they do not match and the older bin’s RFID is corrected, select Confirm.

Bin ID Field / Comparing Bin ID tags

Compare the barcodes, or the code printed on the side of the bin, between Bin A and Bin B. If they are the same, please report to your supervisor. If the code printed on the bin’s side is different from the code on the barcode tag, write the one on the bin’s side. If the older bin’s Bin ID is corrected, select Confirm.

Preventing Scanner Power Drain

If the mobile device paired to the scanner is attached, the mobile phone can charge from the scanner and drain its battery. Here is how to prevent power drain:

Open 123RFID

From your home screen or app drawer, launch the 123RFID Mobile app.

Find your device

On the Readers screen, select your device (e.g., RFD4030-G00B700-WR) to initiate the connection.

Navigating Settings

Once connected, tap Settings located at the bottom-right corner of the screen. Go to RFID, then to Charge Terminal.

Disable Terminal Charging

Uncheck the checkbox next to Enable Charge Terminal. This stops the phone from charging from the scanner.

Save Settings

Tap the Back arrow at the bottom-left of the navigation bar to exit the screen; the app should show a "Settings Applied Successfully" notification.

My scanner isn’t connecting

If your scanner isn’t connecting, check the following:

Scanner

Check if the scanner is still on or how the battery icon looks. If it is not green or yellow, the scanner’s battery may be depleted and needs charging.

Device Permissions

The connected device might not have app permissions set for Ledger. Go to Settings and to Apps. Find the Ledger app and enable Nearby Devices as a permission.

Connected to another Device

Especially if the device is not attached to the scanner, the scanner may have difficulty connecting to the currently used device: it used to be assigned to another device, and it didn’t properly disconnect. Check if there is anyone else that used the device before this one, and make sure the scanner is fully disconnected before trying again.

My device lost internet connection during a scan

When finishing a scan and returning connection, your device should start sending the finished bin scan immediately. If this fails, restart the app and re-scan.

I scanned the wrong RFID or Barcode for a bin

When scanning an RFID or barcode in the wrong order, or scanning either of those from a different source…

Scanned in the wrong order

Typically this would and should get caught by the Conflict screen - see RFID or Bin ID is already on another bin.

Scanned or typed different/wrong value

If scanning a bin’s fields that is outside of your run, or accidentally typing a possible (but not correct) value in, you are not able to directly change it. Please notify your supervisor and what bin it was.