my iphone says it's connected but the shipping app just says 'printer not found' or 'offline'

Diagnosis

The core issue is a "handshake failure" between the iOS operating system and the specific shipping application. When your iPhone says "Connected" in the Bluetooth settings menu, it means the phone has established a low-level hardware link with the JADENS printer. However, the shipping app (such as Shopify, Pirate Ship, or eBay) requires a separate, high-level software permission to "talk" to that hardware. If the app lacks "Bluetooth Peripheral" permissions, it cannot send the print spooler data to the device, leading to the "Printer Not Found" or "Offline" error despite the active connection. Furthermore, many shipping apps default to searching for AirPrint-enabled printers. Because the JADENS Bluetooth model uses a proprietary Bluetooth protocol rather than a Wi-Fi network protocol, the app is looking for a network IP address that doesn't exist. The app is essentially searching for a "Network Printer" while the JADENS is presenting itself as a "Bluetooth Device," creating a communication mismatch that results in the offline status.

How to Fix It

To resolve this, you must bridge the gap between the iOS system permissions and the app's printer selection settings. Follow these exact steps:

1. Open the Settings app on your iPhone.
2. Scroll down to the Privacy & Security section and tap on Bluetooth.
3. Locate your specific shipping application (e.g., Shopify, ShipStation, or Pirate Ship) in the list. If the toggle is grey, slide it to the ON (green) position.
4. Return to the main Settings menu, scroll down to the bottom where your installed apps are listed, select the shipping app, and ensure Local Network access is also enabled.
5. Force-close the shipping app by swiping up from the bottom of the screen and flicking the app window away.
6. Power cycle the JADENS printer: Press the power button off, wait 5 seconds, and turn it back on. Wait for the blue Bluetooth light to stop flashing and remain steady.
7. Re-open the shipping app and navigate to Settings > Printer Setup.
8. Instead of selecting "AirPrint" or "Automatic," manually select "Bluetooth Printer" or "Other" from the dropdown menu.
9. Select the JADENS device from the list of available Bluetooth peripherals and tap Connect/Pair.

If That Didn't Work

• Clear the Bluetooth Cache: Go to Settings > Bluetooth, tap the "i" icon next to the JADENS printer, and select "Forget This Device." Restart your iPhone, then re-pair the printer directly through the app's internal setup wizard rather than the iPhone's system settings. This forces the app to lead the handshake process.
• Check Label Size Configuration: If the printer is connected but refuses to print, the app may be sending a 4x6 PDF to a printer configured for 2x3 labels. In the app's print settings, manually set the paper size to 100mm x 150mm or 4x6 inches. If the dimensions are mismatched, the printer will often report as "Offline" to prevent a paper jam.
• Test via the JADENS App: Download the official JADENS companion app from the App Store. If you can print a test page through the official app but not the shipping app, the issue is strictly a permission conflict within the shipping app. In this case, export your label as a PDF, save it to your "Files" app, and print it directly from the PDF viewer.
• Reset Printer NVRAM: With the printer on, hold the feed button for 5 seconds until the light flashes. This resets the internal memory and clears any stuck print jobs in the buffer that might be blocking the iPhone from establishing a new data stream.

Heads Up

• Avoid Multi-Pairing: The JADENS Bluetooth printer can typically only maintain one active data stream at a time. Ensure no other tablets or phones in the room are paired to the printer, as they may "steal" the connection, making the printer appear offline to your iPhone.
• Battery/Power Stability: Always ensure the power brick is plugged directly into a wall outlet rather than a low-voltage USB hub. Insufficient power can cause the Bluetooth chip to drop the connection intermittently during the "handshake" phase.
• Label Loading: Ensure the labels are loaded with the printing side facing up and the guides are snug against the roll. If the printer detects a "Paper Out" or "Cover Open" state, it will report an "Offline" status to the app.
• Firmware Updates: Periodically check the JADENS app for firmware updates. Bluetooth protocols on iOS are updated frequently, and printer firmware must be updated to maintain compatibility with newer versions of iOS.