Your Qashier Soundbox needs an internet connection to receive payments. It can connect over WiFi or over 4G with a micro SIM card. This article shows you how to check which mode the Soundbox is in, switch modes, insert a SIM card, and join a WiFi network using the keypad on the back.
Applies to: Singapore, Malaysia, Thailand and the Philippines · Qashier Soundbox. If you ordered a Soundbox with a data SIM, insert the SIM and use 4G. If you ordered the WiFi-only option, or prefer WiFi, follow the WiFi steps.
Before you start
For WiFi: have the network name and password ready. Passwords are case-sensitive.
For 4G: have the micro SIM supplied with your Soundbox data-SIM order.
The buttons you will use are all on the back of the Soundbox: the M button, the power button, the - and + buttons, and the number keypad with F1, F2 and the green Enter (↵) key.
Step 1: Check the current mode
Look at the LED screen on the back of the Soundbox:
The letter G means the Soundbox is in 4G mode.
The letter W means the Soundbox is in WiFi mode.
Step 2: Switch between WiFi and 4G mode
Press and hold the M button to open the network configuration mode.
Use the - or + button to select WiFi Mode or 4G Mode.
Press the power button twice to confirm. The Soundbox restarts in the mode you chose.
Option A: Connect over 4G (micro SIM)
Find the micro SIM card slot on the side of the Soundbox.
Open the slot cover, insert the micro SIM card and close the cover.
Orientation: hold the Soundbox with its main screen facing you and insert the SIM with the gold chip facing you, as shown.
If the LED screen does not show G, switch to 4G Mode using Step 2. Once the Soundbox is online, the front screen shows your payment QR code (in Thailand, the standby screen).
Option B: Connect over WiFi
Switch to WiFi Mode using Step 2 and wait for the Soundbox to restart.
Press F2 on the keypad. The Soundbox scans for networks.
Use F1 and F2 to move up and down the list and highlight your WiFi network, then press the green Enter (↵) key.
Type the WiFi password on the keypad:
Letters and numbers: press the same key repeatedly to cycle through its characters (for example, press 3 twice for "e").
Capital letters: keep pressing the key until the capital letter appears (for example, press 3 four times for "D"), or press F2 after a letter to switch between upper and lower case.
Special characters: press 1 for . , ? ! : ; ' " ( ) / _ and press F1 or + for + - @ # $ % & * = ~ ^
Space: press 0.
Press the green Enter (↵) key to connect. When the connection succeeds, the Soundbox screen shows connection:successful.
The LED screen on the back also shows W.
What you should see
Once online, the front screen shows your payment QR code (or the standby screen in Thailand) instead of an error, and the back LED screen shows G (4G) or W (WiFi).
If something goes wrong
Symptom | Likely cause | What to do |
WiFi connection fails | Wrong password (upper/lower case), or the network is out of range | Re-enter the password, checking each letter's case with F2. Move the Soundbox closer to the router and try again. |
Your network is not in the list | The Soundbox did not finish scanning, or the router is too far away | Press F2 to scan again. Move closer to the router. |
Connected, but payments are not announced | Unstable WiFi | Restart the Soundbox. If it keeps dropping, switch to 4G with a micro SIM. |
Letter G shown but no connection | No SIM, SIM inserted the wrong way round, or no data plan | Re-seat the SIM with the chip facing you. If it still does not connect, contact support. |
Online, but the screen shows an error | Serial number not set or wrong in QashierHQ | See the next steps below. |
Next steps
Enter the Soundbox serial number in QashierHQ: [SG/MY] How to Configure Your Qashier Soundbox (Display Name, Serial Number, Language) or [TH] การตั้งค่าเครื่อง Soundbox (PromptPay).
Take your first payment: [SG/MY] How to Use Qashier Soundbox or [TH] How to Use Qashier Soundbox (Dynamic PromptPay QR).
Learn what the device can do: What is Qashier Soundbox?
Last verified: 25 Sep 2026 · Markets: SG, MY, TH, PH