Intuit QB21 Quick Start Manual Download Page 2

• Ensure to turn on the 

Bluetooth®

 function of your smartphone or tablet before use.

• Please fully charge your 

Intuit QB21

 before use. 

• Please ensure magstripe/EMV chip of the card is facing the right direction when 

swiping or inserting card.

• Don’t drop, disassemble, tear, open, crush, bend, deform, puncture, shred, 

microwave, incinerate, paint, or insert foreign object into the device. Doing any of 

which will void the Warranty.

• Don’t immerse the device into water and place near washbasins or any wet 

locations. Don’t spill any food or liquid on the device. Don’t attempt to dry the 

device with external heat sources, such as microwave or hair dryer.

• Don’t use any corrosive solvent or water to clean the device. Recommend using 

dry cloth to clean the surface only. 

• Don’t use any sharp tools to point the internal components or connectors, doing 

which may lead to malfunction and void the Warranty.

• Don’t try to disassemble the device to repair. Please contact your dealer for repair 

and maintenance. 

Cautions & Important Notes

Product Specifications 

Troubleshooting

FCC Caution Statements:

Warranty 

Functions 

Communication Interface 
Power & Battery 
Charging 
Swipe Speed 
LED Indicator 

Support Operating System 

Product Size 
Product Weight 
Operating Temperature 
Operating Humidity 

•  EMV/PBOC Chip Card Reader

(ISO 7816 Compliant Class A, B, C card)
•  Magnetic Stripe Card Reader
Dual tracks (track 1 & 2 or track 2 & 3)

Bluetooth

® 4.0

Lithium polymer rechargeable battery 125mAH, 3.7V

 

Via micro USB
15cm - 100cm/sec
Operating – green light flashing
Low battery  level – red light flashing
Charging – red light ON
Fully charged – green light ON
Android 2.1 or above, iOS 6.0 or above
Windows Phone 8, MS Windows 
61.8mm (W) x 44.5mm (H) x 14.2mm (D)
29.8g
0°C – 45°C (32°F – 113°F)
Max 95% 

Storage Temperature 

-20°C – 55°C (-4°F – 131°F)

Storage Humidity 

Max 95%

Problems

Recommendations

• Please press the power on button to restart your device.

• Please check if you can find the device’s “Serial Number” 

(Shown on the back of device) in the “Scanned Device List” 

of your smartphone or tablet.

• Please press the power on button to turn on the device 

again. The device will automatically connect with your 

smartphone or tablet again.

• The device may be at lower battery level, please use the USB 

cable to recharge it, then retry.

• Please ensure the device or smartphone/tablet is within the 

reception range.

Device cannot be paired

Device cannot read your

card successfully

• Please press the power on button to turn on the device 

again. The device will automatically connect with your 

smartphone or tablet again.

• The device may be at lower battery level, please use the 

USB cable to recharge it, then retry.

• Please ensure the device or smartphone/tablet is within the 

reception range.

Device lost the 

connection with your 

smartphone or tablet 

when the device is 

auto-off.

• Please ensure the 

Bluetooth

® function of your smartphone 

or tablet is turned on.

• Please check the version of your operating system is 

supported for this device’s operation.

• Please use a paper clip to press the reset button at the 

bottom for reboot.

Device has no response

Device does not work 

with your phone or 

tablet

• Please check if the device has power when operating and 

ensure devices are connected.

• Please check if the application instructs to swipe or 

insert card.

• Please ensure there is no obstacle in the card slots.

• Please check if the magstripe or chip of the card is facing 

the right direction when swiping or inserting card.

• Please ensure your phone/tablet is supported model for 

this device’s operation.

• Please swipe or insert card with a more constant speed.

Device cannot read 

your card successfully

• Any damage or defects caused by a failure to follow the instruction which relate 

to this device or as the result of an accident, abuse, misuse, misapplication, 

product modification, improper voltage or current, acts of God, shipping 

damages or loss, or damage caused by service performed by anyone other than 

our company are expressly excluded from the warranty stated below. 

• We are not under any obligation to support the device for all operating 

environments, including but not limited to, interoperability with all current 

and/or future versions of software or hardware.

• Please contact the dealer for any warranty or customer support services. 

This device complies with Part 15 of the FCC Rules. Operation is subject to the 

following two conditions: (1) This device may not cause harmful interference, and 

(2) this device must accept any interference received, including interference that 

may cause undesired operation.

NOTE: This equipment has been tested and found to comply with the limits for a Class 

B digital device, pursuant to Part 15 of the FCC Rules.  These limits are designed to 

provide reasonable protection against harmful interference in a residential 

installation. This equipment generates, uses and can radiate radio frequency energy 

and, if not installed and used in accordance with the instructions, may cause harmful 

interference to radio communications. However, there is no guarantee that 

interference will not occur in a particular installation.  If this equipment does cause 

harmful interference to radio or television reception, which can be determined by 

turning the equipment off and on, the user is encouraged to try to correct the 

interference by one of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the 

receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

Caution: Any changes or modifications not expressly approved by the party 

responsible for compliance could void the user's authority to operate this 

equipment.

This transmitter must not be co-located or operating in conjunction with any other 

antenna or transmitter.

Reviews: