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Dejavoo P8, P3 and QD2 setup: charging, paper size, reboot and TPN download

Set up a Dejavoo P8, P3 or QD2 wireless terminal: 5 V 2 A charging, the 58 mm paper it takes, power off and reboot, and downloading the TPN in DvPayLite.

Applies to
Dejavoo P8, P3, QD2 · P8 Android Wireless, P3 Wireless POS, QD2 Android Mobile POS
Payment application
Dejavoo DvPayLite (iPOSpays)
Last reviewed
Oct 27, 2026 by Abdul Rashid

Ask Allstar AI about this guide

Exact messages this covers

  • UPGRADE APP
  • Installing, please wait…
  • Parameter initialization completed successfully.

Check first

  • Which model is it: P8, P3 or QD2?
  • Will it run on Wi-Fi or 4G?
  • Does the screen show the SALE screen (ready) or the UPGRADE APP screen (not yet loaded)?

To set up a Dejavoo P8, P3 or QD2, charge it with the 5 V 2 A adapter that came in the box, load a 58 mm thermal roll, connect it to Wi-Fi or 4G, and check that the DvPayLite payment app opens the SALE screen. If you see an UPGRADE APP screen instead, the terminal still needs its TPN downloaded.

Before you start

  • All three are battery-powered Android wireless terminals with a built-in 58 mm (2 1/4 in) thermal printer, dual-band Wi-Fi (2.4 and 5 GHz) and 4G. None has an Ethernet port.
  • P8: 6.5 in touchscreen, built-in scanner and camera, 7.6 V 2500 mAh battery, USB-C, optional charging cradle. Paper up to 40 mm roll diameter.
  • P3: 5 in touchscreen with a physical keypad, removable 7.4 V battery, USB-C, one SIM slot. Paper up to 40 mm roll diameter.
  • QD2: 5.5 in touchscreen, 7.2 V 2600 mAh battery, USB-C, SIM card slots.
  • Terminals Allstar programs arrive with the TPN already downloaded, so steps 4 and 5 are usually not needed.

Steps

  1. Connect the 5 V 2 A adapter (USB-C on the P3 and P8) and plug it in to charge. Expected: the battery indicator shows charging.
  2. If the screen is dark, press and hold the side Power key. Expected: the terminal boots and opens the Dejavoo payment app.
  3. Check the Wi-Fi icon on the idle screen: blinking means not connected, steady means connected. Expected: a steady Wi-Fi icon.
  4. If you see UPGRADE APP: open DvPayLite, enter the TPN in the TPN # field, tap Download App, enter the one-time passcode if asked, wait for Installing, please wait, and tap Yes to any settings update. Expected: the SALE screen opens.
  5. After your provider changes settings in the portal: Favorites star > UPGRADE APP > check the TPN > Download Parameter. Expected: Parameter initialization completed successfully. Tap OK.
  6. To power off or restart, hold the side button until the menu appears, then tap Power off or Reboot. Expected: the terminal shuts down or restarts and reconnects.

If that did not work

  • Wi-Fi icon keeps blinking: Dejavoo does not publish Wi-Fi setup steps for these models. Contact support with your network name and security type. If the terminal should be on 4G, tell support which carrier the SIM is on.
  • Nothing prints: confirm the roll is 58 mm thermal paper and, on the P3 or P8, no more than 40 mm across. Dejavoo does not publish paper-loading steps for these models; contact support if the printer still does not feed.
  • Battery drains fast or will not charge: use the 5 V 2 A adapter from the box. If a battery is swollen or hot, stop using the terminal.
  • Settings screen asks for an administrator password: stop and contact support.

Contact Allstar support at support@allstarterminals.com or 888-403-7066 (Monday to Friday, 9 AM to 5 PM Central) with the model, serial number, payment application, processor and the exact message on screen.

Sources

Stop and contact support if

  • The terminal asks for an administrator or manager password you do not have: stop and contact Allstar support or your provider. Do not guess.
  • You do not have a TPN, or the download fails: contact Allstar support. Terminals Allstar programs arrive with the TPN already loaded.
  • Battery swollen, hot, or the terminal will not hold a charge: stop using it and contact Allstar support.
  • Any tamper or security alert on screen: stop, do not reboot repeatedly, contact Allstar support.

Contact Allstar support with the model, serial number, payment application, processor and the exact message on screen.

Contact support about this

Notes

  • Dejavoo publishes no written paper-loading, Wi-Fi setup or SIM insertion steps for the P8, P3 or QD2. Paper width and roll diameter come from the flyers; the QD2 flyer gives the width (58 mm) but no roll diameter.
  • Dejavoo does not document how to power these models on. Holding the side Power key is general Android behaviour; the flyers confirm each model has a Power key on the side.
  • The power off/reboot and Wi-Fi icon steps come from Dejavoo's P Terminal Line and QD Terminal Line quick reference guides, which cover each line as a whole rather than naming the P8, P3 or QD2.
  • The TPN article is written for Dejavoo terminals running DvPayLite in general and names no model. The QD2 flyer confirms the QD2 runs DvPayLite; the P3 and P8 flyers do not name the payment app.
  • The P8 flyer lists 4G and a SAM card slot but does not describe a SIM slot, so this guide does not say where a P8 SIM goes. Contact support for 4G setup on the P8.

Sources

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