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Frequently Asked Questions

See also IoTize Studio Output messages and their solutions.

General questions

Is IoTize Tap Manager compatible with iPhone?

IoTize Tap Manager for iOS is compatible with iOS version 12 or above. To use NFC features of IoTize Tap Manager, you need an iPhone 7 or newer. To use the background Tag reading feature, you need an iPhone XS, XS Max or XR model. IoTize Tap Manager is compatible with WebApps built with @iotize/device-client.js version 0.0.1-alpha.78 or newer and IoTize Studio version 1.24 or newer. TapNLink Primers older than the ones distributed in July 2018 are not compatible with IoTize Tap Manager for iOS. If you are planning to use an old Primer with an iPhone contact us at support@iotize.com for an upgrade.

How can I locate the NFC antennas of my smartphone and Tap?

To “tap” successully, your Tap and smartphone NFC antennas must be aligned, so you must know their location.

 - Location of the NFC antenna of your Tap:

    - The NFC is located all around the PCB.

    - It has a rectangular form (about 25 mm \* 35 mm).

 - Location of iPhone NFC antennas is at the top, rear side of the iPhone, right of the camera.

 - Location of your Android smartphone’s NFC antenna:

    - May be anywhere on the back of your smartphone

    - This antenna is generally slightly bigger that the NFC antenna on the Tap.

You must slowly slide the phone around over the Tap until you find the spot that gives the most consistent pairing success.

How do I “tap” my Android NFC smartphone on the Tap?
  1. Put your smartphone and Tap NFC antennas close together (< 2-3 cm max).
  2. Keep them in this position for about 5 seconds, until NFC communication is established, and the application displays the “Welcome page “(with the IoTize logo), then the monitoring page.
  3. Move your phone at least 20 cm away from your Tap to avoid unexpected pairings, which could alter subsequent operations.

Troubleshooting

Why can't my mobile connect to the target via WiFi?

The WiFi only accepts one connection at a time.

  1. Check that your computer is not connected (left click on the computer icon).

  2. Check that another device is not connected.

  3. Swipe to the right on your phone and tap Info.

    a. Check that the "Configuration explorer | WiFi Connectivity | SSID" on your mobile, is the same as "IoTized Application | Incoming communication (Wireless) | WiFi" settings. If not, make it.

    b. Check that the "Configuration explorer | WiFi Connectivity | Hostname" on your mobile, is the same as "Studio | Connection to Tap | Socket host name/IP". If not, make it.

  4. Power the target off and on.

  5. Forget the WiFi network on the mobile and reconnect with the correct password.

  6. Connect via NFC or BLE, logon as admin:

    a. Check WiFi is authorized for this device, if not, Authorise WiFi

    b. Reboot the device

If you still can't connect, connect via BLE again, change the WiFi password (see the "How to" guide), reboot and connect using the new password.

Why can't IoTize Studio connect to the target?

Connect to your device with Tap manager to see it's current settings:

  1. Check that your computer is connected to the Taps WiFi network.

  2. Check that the "Studio | Connection to Tap" settings match those of the Tap. Defaults are:

    a. Protocol: Socket

    b. Socket hostname: 192.168.4.1.

    c. Service name/Port: 2000

Why is the BLE connection unresponsive?

  1. Switch on and off the BLE connection in the smartphone general settings.

  2. Unpair the IoTize BLE appliances and rescan for BLE devices.

  3. Check that another device is not connected.

  4. Make sure your smartphone is charged. Using the gateway from your smartphone significantly increases power consumption, especially if you are logging high volumes of data.

  5. If none of the above actions work, switch off your smartphone and restart it.

Why won't my iPhone start Sensor demo?

Sensor demo requires iOS 11.0 or newer.

NFC\WiFi pairing features need an iPhone 7 or newer, with iOS13 or newer.

iPhones XS or newer can also scan NFC tags and launch 'Sensor demo' automatically when scanning a Tap.

Why don't I have any bundles?

You must have changed the Target System / ELF pathname. Either:

 1. Uninstall and reinstall IoTize Studio.

 2. Change the pathname back to the examples directory <.\Sensor_tem\out\STM32_Sensor.elf> and add some yourself.
Why is Studio stuck "Loading app" in Webview ?

The HTML pages are missing some files. 

 1. Save the project in a user directory where you have full read/write access (maybe not Program Files).

 2. Reconfigure/reboot/publish as appropriate.
What are the factory reset values?

WiFi password: ABCD1234

WiFi network: TAP_xxx

IP number: 192.168.4.1

Service name/Port: 2000

Network mode: Access Point

SSID: TAP

See TapNLink User Manual for other factory reset info.

Why can't I configure my Tap?

Someone must be using the app on your Tap: Close the app.

Why won't Tap Manager create a socket relay connection?

  1. Check the PC and the mobile are both connected to the same (relay) network.

  2. Force off Tap Manager and setup the relay again.

  3. Click on the Socket and change the port number.

IoTize Studio Output messages (and solutions)

*** ERROR: Connection to Target failed.

Someone else is already connected to the target. Disconnect them.

Error: Login as admin failed! (error 0xA8)

If this occurs during configuration, someone else is connected to the Tap: disconnect them.

ERROR: step 70 line 70 : 0xA8 *** ERROR: !!! Configuration failed !!!

Someone else is connected to the Tap: disconnect them.

ERROR: step 73 line 197 : 0x80 *** ERROR: !!! Configuration failed !!!

Someone else is connected to the Tap: disconnect them.

*** ERROR: Failed connecting to the TAP. 
 *** ERROR: CIoTizeComDrv::Read_Socket, recv failed, Error:10060

 *** ERROR: Communication Error 0x274C during Get.

There is nothing wrong. There may be a cache issue, try changing the IP value, Connect, then change it back to the correct value.

*** ERROR: Cloud project with identifier "ProjectName" does not exist

Check you are looking on the correct IoT Platform: check the Mobile App and IoT settings.

*** ERROR: You have to select an existing Cloud Project Id (see 'Mobile App' options)

Click 'See Project List', choose a project, then click 'Select'.

(6516) Reconnection failed. Asking for manual unplug and replug...

Unplug and replug the Tap. If this doesn't fix it:

 1. Connect to the Tap with NFC/BLE on your mobile, swipe to the right on your phone and tap Info.

 2. Check that the "Configuration explorer | WiFi Connectivity | SSID" on your mobile, is the same as "IoTized Application | Incoming communication (Wireless) | WiFi" settings. If not, make it.

 3. Check that the "Configuration explorer | WiFi Connectivity | Hostname" on your mobile, is the same as "Studio | Connection to Tap | Socket host name/IP". If not, make it.
*** ERROR: Publish failed and ERROR: Missing parameter 'key' 
 Check the Mobile App | Web Pages location | Product Key (default: SerialNumber_00000000)
*** ERROR: Publish failed and ERROR: Invalid device credentials

  1. Check the Mobile App | Web Pages location | Product Key (default: SerialNumber_00000000)

  2. Check the IoT Platform (MQTT) | Cloud MQTT Broker | Password (default: SerialNumber_00000000)

  3. Check you are allowed to publish on your chosen server

*** ERROR: Config failed and Step 192 line 192 : 0x80

Make the Studio | Configuration version > 0

Contact IoTize support to resolve the following messages:

  \*\*\* ERROR: You are not authorized to create app generator project

  \*\*\* ERROR: You are not authorized to create project anymore. Your plan is now over.
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