The Dejavoo P12 is a pocket-sized handheld that packs a full payment terminal into a mobile PIN pad. With a 4" touchscreen, Wi-Fi, 4G, and Bluetooth, and a removable battery, it takes chip, tap, swipe, and mobile wallet payments anywhere you do business. This Dejavoo P12 quick start gets you from the box to your first successful test sale in just a few minutes.
Before you begin, have three things ready: your Wi-Fi password or a 4G SIM, your merchant terminal ID (TID), and a fully charged battery. With those on hand, work through the steps below in order and your P12 will be live and ready for customers.
1Charge the battery and power on
- Begin your Dejavoo P12 quick start by seating the removable battery and giving the handheld a full charge — plug the USB-C cable into the wall adapter and let it top off before your first shift. A full charge keeps this pocket mPOS running through a busy day of chip, tap, and swipe sales.
- Press and hold the power button until the 4" touchscreen lights up and the Dejavoo logo appears. Let the Android device boot all the way to the home screen. Because the battery is removable, keep a spare on the charger if you run long hours or work the floor away from an outlet.
2Connect to Wi-Fi or 4G
- The P12 is built to go wherever you take payments, so get it online first. From the home screen open Settings, tap the network menu, choose your Wi-Fi network, and enter the password exactly — it is case-sensitive. Wait for the signal icon to confirm the handheld is connected.
- Away from Wi-Fi? The P12 also runs on 4G cellular and pairs over Bluetooth for accessories and receipt printers. If you plan to take payments curbside, at events, or table-side, a 4G SIM keeps the device online anywhere it has signal — a core reason the P12 works so well as a mobile PIN pad.
3Activate and download your profile
- With the P12 online, download the profile that links the device to your merchant account and processor. Open the setup or download menu and start the profile download. The handheld contacts the host, pulls your configuration, and reboots itself when it finishes.
- After it restarts, the P12 is activated and ready to accept live cards. If the download stalls, confirm your connection and your terminal ID (TID), then try again on a stronger signal. Our Puerto Rico team can push your profile remotely if you get stuck at this step.
4Run a test sale — chip, tap, swipe, and wallet
- Before your first customer, ring up a small test amount to confirm every read method works. Insert a chip card into the EMV slot, tap a contactless card or phone against the NFC reader, and swipe a magstripe card to check all three paths on the P12.
- The P12 also accepts mobile wallets, so tap an Apple Pay or Google Pay phone to confirm digital payments go through. Void or refund the test right away so it does not settle. A clean test across chip, tap, swipe, and wallet is your sign the quick start is complete.
5Email or print the receipt
- The P12 gives customers a choice at checkout. On the receipt screen you can email a digital copy — handy for a handheld with no built-in printer — or send the receipt to a paired Bluetooth printer if you carry one.
- Add your business name, address, and phone number to the receipt header so every copy looks professional. If you take tips, enable the tip prompt and set suggested percentages like 15%, 18%, and 20% so staff can add gratuity right on the touchscreen.
6Settle and batch out
- At the end of the day, settle your transactions so the funds move to your account. From the main menu open the batch or settlement option and confirm the batch — the P12 sends the day's approved sales to the processor for funding.
- Review the settlement summary to check your totals and tip amounts before you close out. Settling daily keeps your deposits on schedule and your reporting clean, which matters most during busy weeks with high volume.
7Troubleshooting common issues
- If the P12 will not connect, restart your router or check your 4G signal and re-enter the Wi-Fi password, watching for a wrong character. A profile download that fails usually means the TID needs a second look or the signal is weak — re-run the download on a stronger connection.
- If the handheld will not power on, reseat the removable battery and confirm it is charged. Declined test cards typically point to activation that did not finish, so re-run the profile download. Still stuck? Reach out — local support means a real person who knows Puerto Rico merchants.
Want the full specs and pricing on this handheld? Explore the Dejavoo P12 page, or browse Dejavoo support and manuals for more setup help.
