Check the model and serial number before pairing
The original P-touch CUBE is the PT-P300BT. The CUBE Plus is the PT-P710BT. Both connect to supported phones through Brother’s label app. Check the model code on the printer if the two names look similar on the box or in a saved device list.
Write down the last four digits of the serial number, especially if more than one Brother printer is in the room. Brother locates it inside the cassette compartment. Switch off the unit before opening the cover and reseat the cassette before switching it back on. The suffix helps you tell two printers of the same model apart. A hypothetical PT-P710BT with a serial ending in 0428 appears as PT-P710BT0428. Brother PT-P300BT connection guide · Brother PT-P710BT user guide
Connect the CUBE in P-touch Design&Print 2
- Install or open Brother P-touch Design&Print 2 on your iPhone or Android phone. Check your app store listing if the app will not install on an older device.
- Switch the label maker on and keep your unlocked phone beside it. Turn Bluetooth on in the phone’s settings. Accept the app’s Bluetooth or Nearby devices permission if prompted.
- On the app’s first-run screens, tap Connect Now. If you already use the app, open the editor and tap the connection or printer selection prompt at the upper right.
- Select the name with the model and serial suffix that match your machine. Refresh the list if it is empty. If a pairing prompt requests a PIN, enter 0000.
- Wait for the app to finish connecting before you send a job. If you previously selected a different P-touch, check the selected printer again before testing. Brother CUBE Plus mobile connection guide
The CUBE Plus manual also shows selecting the PT-P710BT entry in the phone’s Bluetooth settings. If your phone or app prompts you to pair there, select the matching entry and return to Design&Print 2 to select the printer for the print job. The screens can vary by phone. Brother PT-P710BT user guide
Fix a CUBE that will not appear or connect
| What you see | What to check first |
|---|---|
| The printer light is off | Wake it with the power button. Check the batteries or approved adaptor on the PT-P300BT, or charge the PT-P710BT. |
| Bluetooth is on but the app’s list is empty | Check app permissions and keep the phone next to the printer. Refresh the list after the printer is awake. |
| A device with the right model but different digits appears | Check the serial label and choose the matching four-digit suffix. |
| The printer worked on a different phone | Turn Bluetooth off temporarily on the other phone or tablet. Restart the printer and select it again from the intended phone. |
| The app selects the printer but nothing feeds | Check whether the app reports a tape, cover or power error. Try one short label after resolving that message. |
On iPhone, review the app’s Bluetooth permission in Settings → Privacy & Security → Bluetooth. On Android, find the app under Settings → Apps, open Permissions and check Nearby devices if the option appears. Menu names vary by Android device. Apple Bluetooth permissions · Google Android app permissions
If the phone still sees nothing, test with only one device trying to connect. Keep it unlocked, restart the CUBE and allow time for discovery before refreshing. That separates a phone or app issue from a printer that fails to appear on any supported mobile device. Use Brother’s support for the exact model if it still fails. Brother PT-P300BT connection troubleshooting · Brother PT-P710BT troubleshooting
Confirm the connection with one short label
With a supported TZe cassette installed and the cover closed, choose a plain design and type a short word such as FILES. Select the width of the loaded tape if the app asks. Print one copy. Let the tape finish feeding before cutting it with the original CUBE’s cutter. On the CUBE Plus, check the app’s automatic cut setting if the printed label remains attached.
If a job starts and then stops with an error, record the exact message before changing settings. A tape or cover message after the job starts gives you a different check from an empty printer list. A printed label with some blank tape before the text also shows that the job reached the printer. Brother PT-P710BT user guide
Manufacturer instructions
Common questions
What is the Bluetooth PIN for a Brother P-touch CUBE?
Enter 0000 if the phone or pairing screen asks for a PIN. The last four digits of the printer’s serial number identify its Bluetooth name and serve a different purpose.
Which app do I use with the PT-P300BT and PT-P710BT?
Both models are supported by Brother P-touch Design&Print 2 for iPhone and Android. Check the current app listing for compatibility with your phone or tablet.
Why is my CUBE visible on my old phone but missing on my new one?
The printer may still be connected to the old phone. Turn off Bluetooth on that phone temporarily, restart the printer and refresh the printer list in the app on the new phone.
How do I know which CUBE to choose if there are two in the list?
Match the four digits at the end of the Bluetooth name to the last four digits of your printer’s serial number. Check the serial label inside the cassette compartment with the machine off.
Can I use the CUBE Plus over Bluetooth from my computer?
Brother documents USB with P-touch Editor for computer printing on the PT-P710BT. Its Bluetooth workflow is for supported mobile devices.