Device Test Pro: Phone Checker

Is your phone really working the way it should? Device Test Pro runs a complete phone hardware test in minutes and gives you one clear health score for your whole device. Whether you're buying a used phone, selling your old one, or just found that something feels off, this phone checker shows you exactly what works and what doesn't. No guesswork, no technical knowledge needed. ★ ONE-TAP FULL DIAGNOSIS Tap "Run full diagnosis" and the app guides you through every test step by step. Pause anytime: your progress is saved, so you can continue later. ★ 20 HARDWARE TESTS IN ONE APP DISPLAY & TOUCH • Display test: cycle solid colours to find dead pixels, burn-in, tint or uneven backlight • Touch screen test: swipe the grid to find dead zones on your touchscreen • Multi-touch test: see how many fingers your screen can track at once AUDIO • Speaker test with low, mid and high tones plus left/right channel check • Earpiece (receiver) test for calls • Microphone test: record, play back and watch the live level meter HARDWARE & BUTTONS • Vibration motor test with several patterns • Flashlight test with strobe mode • Camera test for front and rear cameras • Volume up and volume down button test • Charging port test with live battery level, current, voltage and temperature SENSORS • Proximity sensor test • Motion (accelerometer) test: tilt to roll the ball into the targets • Gyroscope test on all three axes • Compass test with calibration hint • Ambient light sensor test CONNECTIVITY & SECURITY • Bluetooth test • Wi-Fi test with signal strength and link speed • Biometric test for fingerprint or face unlock ★ PHONE HEALTH SCORE Every finished test feeds into a single health score, from "Excellent condition" to "Issues detected", so you can understand your phone's condition at a glance. ★ DIAGNOSTIC REPORT & HISTORY Save a snapshot of your results and share the report with a buyer, seller or repair shop. Your history lets you compare results over time. ★ DEVICE INFO See your full phone specs in one place: model, Android version, security patch, chipset, CPU cores, RAM, storage, screen resolution, refresh rate, HDR support, battery health, temperature and charge cycles. PERFECT FOR ✔ Checking a used or second-hand phone before you buy it ✔ Proving your phone is in good condition before you sell it ✔ Finding the cause of a problem before visiting a repair shop ✔ Testing a phone after a screen, battery or charging port repair ✔ Running a quick health check on a new phone Simple, fast and clear. Download Device Test Pro and find out how healthy your phone really is. Note: Some tests depend on the hardware your phone has. If a sensor or feature is missing, the app marks it as not available instead of failed.