FNIRSI FNAC-28 Fast Charging Protocol Testing Guide Malaysia

FNIRSI FNAC-28 Fast Charging Protocol Testing Guide Malaysia

Introduction

Fast charging technology has become an important feature of modern smartphones, tablets, power banks and portable electronic devices.

However, not all fast chargers use the same charging technology.

Different manufacturers may use different communication protocols to control charging voltage and current.

Common examples include Qualcomm Quick Charge (QC), Huawei FCP and SCP, Samsung AFC, OPPO VOOC and USB Power Delivery (USB PD).

For electronics technicians and mobile phone repair shops, identifying the charging protocols supported by a charger can help explain why some devices charge faster than others.

The FNIRSI FNAC-28 USB Tester provides selected fast-charging protocol detection and triggering functions, together with USB voltage, current and power measurements.

This guide explains the main charging protocols, practical testing procedures and important limitations of the FNIRSI FNAC-28 Fast Charging Protocol Tester Malaysia.

1. What Is a USB Fast Charging Protocol?

A USB fast charging protocol is a communication method used by compatible chargers and devices to establish suitable charging conditions.

Traditional USB charging commonly operates at approximately 5V.

Fast-charging systems may use higher voltages, higher currents or both, depending on the technology.

For example:

Charging VoltageCharging CurrentCalculated Power5V2A10W9V2A18W12V2A24W5V4A20W10V4A40W

These values are illustrative electrical calculations, not guaranteed charging modes supported by the FNAC-28.

The actual charging voltage and current depend on the charger, connected device, cable and negotiated charging protocol.

A charger cannot be assumed to support a particular fast-charging mode simply because its maximum rated power is high.

2. Why Is Fast Charging Protocol Testing Important?

A smartphone may charge slowly even when connected to a charger advertised as fast charging.

Possible reasons include:

Incompatible charging protocols

USB cable limitations

Device charging restrictions

Battery temperature protection

Charger output limitations

Poor USB connector contact

A USB Fast Charging Protocol Tester can help technicians investigate which charging modes are advertised or supported by compatible chargers.

However, protocol detection alone does not prove that a charger can deliver its full rated current continuously.

A separate suitable load test may be required to evaluate actual output performance.

3. FNIRSI FNAC-28 Main Testing Specifications

ParameterDescriptionModelFNIRSI FNAC-28Product TypeUSB Digital TesterVoltage Measurement Range4V to 24VCurrent Measurement Range0A to 6.5AMaximum Rated Power156WUSB InterfacesUSB-A and USB Type-CMain MeasurementsVoltage, Current and PowerProtocol FunctionsSelected Fast Charging Detection and TriggeringCable TestingUSB Cable Resistance TestingPD Active TriggeringNot SupportedPD Packet CaptureNot Supported

Important: The electrical measurement limits do not mean that every USB charging protocol or high-power mode is available.

Users should check the manufacturer's operating instructions and the specific firmware version before performing protocol tests.

4. Qualcomm Quick Charge QC2.0 and QC3.0

Qualcomm Quick Charge is a family of fast-charging technologies used by compatible chargers and devices.

QC2.0

QC2.0 supports communication between compatible equipment to select suitable charging voltage levels.

Common implementations may provide voltage options such as 5V, 9V or 12V.

The available voltage levels depend on the charger.

QC3.0

QC3.0 introduced more flexible voltage adjustment compared with earlier fixed-voltage implementations.

Compatible devices can request voltage changes within supported operating limits.

How FNIRSI FNAC-28 Helps

The FNIRSI FNAC-28 QC2.0 QC3.0 Tester can assist users with selected Quick Charge protocol detection and triggering.

This is useful when checking whether a compatible charger responds to supported QC requests.

Important: A successful QC protocol response does not guarantee that the charger can sustain its maximum advertised output under load.

5. Huawei FCP and SCP Fast Charging

Huawei charging technologies include FCP (Fast Charge Protocol) and SCP (SuperCharge Protocol).

These technologies use compatible charger-device communication to control charging conditions.

Huawei FCP

FCP is associated with selected Huawei fast-charging implementations.

It may use higher charging voltage than conventional 5V USB charging.

Huawei SCP

SCP is associated with Huawei SuperCharge technology and may use higher charging currents in supported systems.

The exact voltage and current depend on the particular charger, device and cable.

FNIRSI FNAC-28 Application

The FNAC-28 supports selected FCP and SCP protocol testing functions.

Technicians can use these functions to investigate compatible charger protocol responses.

However, identifying SCP support does not establish that every Huawei SuperCharge mode is available.

6. Samsung AFC Fast Charging

Samsung AFC (Adaptive Fast Charging) is a charging technology used by selected Samsung devices and compatible chargers.

AFC allows supported equipment to negotiate appropriate charging conditions.

For example, some AFC implementations operate at approximately 9V.

The FNIRSI FNAC-28 Fast Charging Tester supports selected AFC protocol functions.

This may help technicians investigate compatibility problems involving AFC chargers.

However, Samsung devices may also support other charging standards, including USB Power Delivery with PPS.

AFC support should not be confused with USB PD or PPS support.

7. OPPO VOOC and Related Charging Protocols

VOOC is a proprietary fast-charging technology associated with OPPO and related charging systems.

Different generations and implementations may use different charging arrangements.

Some proprietary systems require compatible chargers, cables and device-side charging electronics.

The FNIRSI FNAC-28 provides selected protocol functions associated with VOOC, WARP and SVOOC charging families.

However, support for a protocol family does not guarantee compatibility with every generation, voltage level or proprietary charging mode.

Technicians should verify the exact charger specification before performing a protocol test.

8. Fast Charging Protocol Comparison

The following table provides a simplified overview.

ProtocolCommon AssociationMain CharacteristicQC2.0Qualcomm Quick ChargeNegotiated Voltage LevelsQC3.0Qualcomm Quick ChargeMore Flexible Voltage AdjustmentFCPHuaweiProprietary Fast ChargingSCPHuawei SuperChargeSelected High-Current Charging ModesAFCSamsungAdaptive Fast ChargingVOOCOPPOProprietary Charging SystemWARPOnePlusProprietary Charging SystemSVOOCOPPO / Related BrandsProprietary High-Power ChargingUSB PDUSB-C DevicesStandardised Power NegotiationUSB PD PPSCompatible USB-C DevicesProgrammable Power Supply Negotiation

Important: This table compares charging technologies, not confirmed FNAC-28 support for every protocol or implementation.

The FNAC-28 supports selected non-PD protocol functions but is not a complete USB PD analyser.

9. How to Test Fast Charging Protocols with FNIRSI FNAC-28

The following procedure explains the general approach to compatible fast-charging protocol testing.

Always follow the official FNIRSI operating instructions for the correct connection arrangement and menu operation.

Step 1 - Identify the Charger

Check the charger's printed specifications.

Look for supported output voltages, currents and charging standards.

For example, a charger may advertise QC3.0, AFC or another protocol.

Step 2 - Connect the FNIRSI FNAC-28

Connect the USB tester to the compatible charger output using the appropriate USB interface.

Ensure that the connection is secure.

Step 3 - Select the Protocol Testing Function

Access the relevant protocol testing menu according to the instrument's instructions.

Select the required supported protocol detection or triggering function.

Step 4 - Observe the Response

Check whether the charger responds to the supported protocol test.

Where applicable, observe the output voltage.

Step 5 - Record the Results

Record the charger model, protocol tested and measured output voltage.

Step 6 - Compare with Charger Specifications

Compare the observed response with the manufacturer's stated charging capabilities.

Safety Warning: Protocol triggering can request an output voltage higher than 5V. Do not connect a voltage-sensitive device or unprotected electronic circuit during an active trigger test. Follow the manufacturer's prescribed test setup and use a suitable rated load when required.

10. What Does a Successful Protocol Test Mean?

A successful protocol detection or trigger test indicates that the charger responded to the relevant supported test under the conditions used.

However, it does not automatically confirm:

Maximum charging power

Maximum continuous output current

Long-term charger stability

Electrical safety certification

Compatibility with every smartphone

Full USB Power Delivery support

For example, a charger may respond to a QC request for 9V but still require additional load testing to determine its sustained power capability.

Therefore, protocol testing and load testing are different procedures.

11. FNIRSI FNAC-28 vs USB PD Analyzer

One important limitation of the FNIRSI FNAC-28 is its USB Power Delivery functionality.

USB PD uses a communication process to negotiate power delivery between compatible USB-C equipment.

Advanced USB PD analysers may provide functions such as:

PD Contract Monitoring

PD Message Decoding

PDO Inspection

PPS Negotiation Analysis

Protocol Packet Capture

Advanced PD Triggering

The FNAC-28 is not designed to replace a dedicated USB PD analyser.

FunctionFNIRSI FNAC-28Dedicated USB PD AnalyzerUSB Voltage MeasurementYesModel DependentUSB Current MeasurementYesModel DependentUSB Power MeasurementYesModel DependentSelected QC Protocol TestingYesModel DependentSelected FCP / SCP / AFC TestingYesModel DependentPD Active TriggeringNoAvailable on Selected ModelsPD Packet CaptureNoAvailable on Selected ModelsDetailed PD Negotiation AnalysisNoAvailable on Selected Models

For customers requiring advanced USB-C PD testing, MTM Precision can assist in identifying a more suitable testing instrument.

12. Common Fast Charging Problems and Troubleshooting

Problem 1 - Charger Only Outputs 5V

Possible explanations include:

The connected device has not requested a higher voltage.

The charger does not support the required protocol.

The cable or connection is unsuitable.

The charger is operating in its default mode.

Recommended Action: Check the charger specifications and supported charging protocols.

Problem 2 - QC Fast Charging Does Not Activate

Possible causes include protocol incompatibility, charger limitations or an unsuitable test setup.

Recommended Action: Verify that the charger supports the specific QC mode being tested.

Problem 3 - Charging Power Is Lower Than Expected

A charger rated at 30W may deliver less power when connected to a device that does not request its maximum output.

Recommended Action: Measure voltage and current under controlled, compatible loading conditions.

Problem 4 - Fast Charging Works with One Cable but Not Another

Different cables may have different resistance, connector quality or supported charging capabilities.

Recommended Action: Compare the cables using a known-good charging setup and, where appropriate, the FNAC-28 cable resistance function.

Problem 5 - Charger Supports Multiple Protocols but the Device Charges Slowly

Supporting multiple protocols does not guarantee compatibility with every device.

Recommended Action: Confirm the charging standard required by the device and the actual modes offered by the charger.

13. Applications in Electronics Repair and Testing

The FNIRSI FNAC-28 Fast Charging Protocol Tester Malaysia can be useful in several technical environments.

Mobile Phone Repair Shops

Technicians can investigate charger compatibility and charging performance problems.

Electronics Service Centres

Service personnel can compare selected fast-charging protocol responses from compatible chargers.

USB Charger Retailers

Retailers can demonstrate supported charging functions while explaining the limitations of each charger.

Electronics Training Centres

Students can learn the differences between charging voltage, current, power and communication protocols.

DIY Electronics Users

Hobbyists can explore compatible USB charging behaviour and electrical measurement principles.

14. Is FNIRSI FNAC-28 Suitable for Professional Testing?

The FNIRSI FNAC-28 is useful for routine USB electrical measurements and selected fast-charging protocol investigations.

Its main advantages include:

Compact USB Testing Design

Voltage and Current Monitoring

USB Charging Power Measurement

Selected Fast Charging Protocol Detection

Selected Protocol Triggering Functions

USB Cable Resistance Testing

However, users requiring complete USB PD communication analysis, USB-C compliance testing or laboratory-grade power measurements should consider specialised instruments.

The correct tester depends on the application rather than simply the number of advertised functions.

15. Where to Buy FNIRSI FNAC-28 Fast Charging Tester in Malaysia?

MTM Precision Sdn Bhd supplies electronic testing and measuring instruments for technical applications in Malaysia.

Customers looking for a FNIRSI FNAC-28 Fast Charging Protocol Tester Malaysia can contact MTM Precision for pricing, product availability and suitable testing equipment recommendations.

Our team can also assist customers who need alternative USB testing instruments for more advanced applications.

MTM Precision serves customers in Kuala Lumpur, Selangor, Johor, Penang, Melaka, Negeri Sembilan, Perak, Pahang, Kedah, Kelantan, Terengganu, Perlis, Sabah and Sarawak.

Please contact us to confirm current stock and delivery arrangements.

Frequently Asked Questions

Q1. Can FNIRSI FNAC-28 test QC2.0 and QC3.0?

Yes. It provides selected Qualcomm Quick Charge protocol testing functions.

Q2. Does FNIRSI FNAC-28 support Huawei FCP and SCP?

Yes. Selected FCP and SCP protocol functions are supported.

Q3. Can FNIRSI FNAC-28 test Samsung AFC?

Yes. It supports selected AFC protocol testing functions.

Q4. Can FNIRSI FNAC-28 test OPPO VOOC?

It provides selected functions associated with VOOC and related proprietary charging protocols. Compatibility with individual implementations should be verified.

Q5. Does FNIRSI FNAC-28 support USB PD active triggering?

No. USB PD active triggering is not supported.

Q6. Can FNIRSI FNAC-28 capture USB PD packets?

No. It does not provide USB PD packet capture.

Q7. Does successful protocol detection guarantee maximum charging power?

No. Protocol detection and sustained output power testing are different procedures.

Q8. Where can I enquire about FNIRSI FNAC-28 in Malaysia?

Contact MTM Precision Sdn Bhd in Puchong, Selangor, for product pricing, availability and technical enquiries.

Contact MTM Precision Sdn Bhd

For FNIRSI FNAC-28 USB Tester Malaysia, fast charging protocol testing instruments and electronics measurement equipment enquiries:

MTM Precision Sdn Bhd

Showroom & Service Centre

No. 29-1 & 29-2, Jalan Bandar 18,

Pusat Bandar Puchong,

47160 Puchong, Selangor, Malaysia.

Tel: 03-8080 7172

WhatsApp: +6016-660 7346

Email: mtmpre@yahoo.com

Website: www.mtmpre.com.my

Contact MTM Precision today for FNIRSI FNAC-28 pricing, availability and suitable USB testing equipment recommendations in Malaysia.

Conclusion

Understanding USB fast charging protocols is important when troubleshooting charger compatibility and charging performance problems.

The FNIRSI FNAC-28 USB Tester provides practical voltage, current and power measurements together with selected fast-charging protocol detection and triggering functions.

It can assist technicians in investigating QC2.0, QC3.0, FCP, SCP, AFC and selected proprietary charging protocols.

However, users should understand that the FNAC-28 does not provide complete USB Power Delivery analysis, PD active triggering or PD packet capture.

For customers searching for a Fast Charging Protocol Tester Malaysia, QC3.0 USB Tester Malaysia or FNIRSI FNAC-28 Malaysia, MTM Precision Sdn Bhd can assist with product enquiries and suitable testing instrument selection.