Free Phone Test Kit – Check Your Mobile in 2 Minutes
Run comprehensive client-side hardware checks to check your touch screen, dead pixels, speakers, mic, vibration, gyroscope, and cameras directly inside your browser before booking a repair.
Individual Diagnostic Modules
Tap any module below to test a specific hardware component independently.
1. Screen & Dead Pixels
Full-screen RGB, pure black, grey, and gradient patterns to identify dead pixels, OLED burn-in, edge light bleed, and color banding.
2. Touchscreen Matrix
Full-bleed touch tile grid. Swipe across the whole display to find unresponsive dead zones, ghost touches, or cracked digitizer lines.
3. Multi-Touch Points
Touch with up to 10 fingers simultaneously. Tests multi-finger gesture recognition, pinch-to-zoom tracking, and touch controller IC stability.
4. Stereo Speakers
Synthesizes 440Hz reference tones, high/low frequency sweeps to catch voice-coil rattle, and Left/Right stereo panning checks.
5. Earpiece Receiver
Browser-safe guidance and manual diagnostic methods (carrier call, WhatsApp voice note, Samsung code) to verify the top ear speaker grill.
6. Microphone & Record
Live audio volume meter with real-time waveform input + 5-second voice recording and playback loop to detect muffled sound or mic IC issues.
7. Vibration Motor
Triggers short, long, and rhythmic vibration patterns on Android (with iOS fallback instructions) to test the linear resonant actuator.
8. Sensors & Gyroscope
Interactive 2D bubble level driven by the accelerometer and gyroscope, auto-rotation validation, GPS accuracy radius, and proximity tips.
9. Cameras & Flashlight
Front selfie and rear main camera video feed with live resolution readout, snapshot photo preview canvas, and LED torch toggle (where supported).
10. Device & Screen Info
Automatic hardware audit: measured refresh rate (60/90/120Hz), DPR, HDR support, battery health & charging status, memory quota, and OS model.
Diagnostic Report
Review the status of all tested hardware components below.
| Hardware Test | Verdict | Diagnostic Notes / Findings | Action |
|---|
Matching Repair Solutions
How to Test Your Phone Like a Professional Mobile Technician
When a smartphone suffers physical impact, moisture ingress, or component aging, hardware faults rarely occur in isolation. An unresponsive row on your screen can indicate cracked ITO traces on the digitizer flex cable, while low loudspeaker volume often results from acoustic mesh clogging rather than a burnt voice coil. Running our Phone Test Kit allows you to isolate exact hardware failures in under two minutes, saving you from unnecessary parts replacement and unexpected repair bills.
1. Display & Touch Matrix Diagnostics
Modern AMOLED, OLED, and IPS LCD screens exhibit distinct failure modes. The Screen Test cycles through pure primary colors and monochrome patterns. Stuck sub-pixels shine bright green or red on black backgrounds, while dead pixels appear as black voids against pure white. The 50% uniform grey screen is the gold standard for exposing OLED burn-in and ghost images left behind by keyboards or static navigation icons.
The Touchscreen Matrix Test maps your touch digitizer grid from edge to edge. By drawing across every cell without lifting your finger, you can locate dead touch zones. If specific horizontal or vertical lines remain uncolored, your digitizer glass or touch controller IC has failed, requiring either OCA glass lamination or an assembly swap.
2. Audio Acoustic & Microphone Integrity
Smartphone speakers rely on delicate polyurethane or aluminum diaphragms vibrating inside tiny acoustic chambers. The Speaker Test uses a calibrated Web Audio oscillator sweep from 100 Hz to 5,000 Hz. If you hear buzzing, clicking, or scratchy distortion at specific mid-frequencies, the speaker coil is deformed. The stereo separation test independently validates the top earpiece and bottom loudspeaker channels.
For voice input, the Microphone Test checks both the primary bottom mic and secondary ambient cancellation mics. Watching the real-time decibel meter reveals the noise floor: constant background hiss indicates a grounding issue or liquid ingress on the sub-board flex.
3. Sensors, Gyroscopes & Camera Actuators
Modern optical image stabilization (OIS) and auto-focus mechanisms depend heavily on high-precision MEMS gyroscopes and accelerometers. The Sensors Test uses hardware telemetry to render a responsive 2D bubble level. Sluggish or biased movement points to accelerometer drift or dropped motherboard solder balls. In the Camera Module Test, checking front and rear video feeds verifies camera sensor ISP communication, lens cleanliness, and torch LED driver integrity.
4. What To Do When a Test Fails
If a test highlights a problem, start by restarting your device to rule out transient operating system driver freezes. If the fault persists, use the Send Report on WhatsApp button to transmit your full diagnostic report directly to TF Tech Solutions. Our master technicians will verify whether the issue requires a simple component clean (e.g. ultrasonic earpiece grill clearing), sub-board ribbon replacement, or advanced motherboard micro-soldering (e.g. Audio Codec or Touch IC reballing).
Need OEM Hardware Dialer Codes?
Explore our verified 2026 Secret Codes Handbook for Samsung (*#0*#), Xiaomi CIT (*#*#6484#*#*), iPhone Field Test, and Vivo factory menus.
Frequently Asked Questions
Common technical questions regarding our browser-based phone diagnostic kit.
Is the Phone Test Kit completely safe and private? ↓
Why can't web browsers test the earpiece speaker automatically? ↓
Why does the vibration test show 'Skipped' on my iPhone? ↓
navigator.vibrate) for web applications due to iOS platform restrictions. On iPhone, you can verify your haptic engine and vibration motor manually by toggling Settings > Sounds & Haptics, or flipping the physical Ring/Silent mute switch on the side of your phone.