BlankState Diagnostic vs PhoneCheck

BlankState Diagnostic is a comprehensive mobile device hardware testing tool designed for ITAD operators, refurbishers, and enterprise IT teams. Launched as an App Clip from a QR code, it runs 33 hardware diagnostic tests across sensors, cameras, display, audio, connectivity, and biometrics — with no App Store download required. AUTOMATED TESTS • Wi-Fi, Bluetooth, GPS, Cellular, Ultra Wideband • Accelerometer, Gyroscope, Magnetometer, Barometer • Battery, Storage, True Tone, ProMotion, LiDAR • Touch ID / Face ID, Wireless Charging SEMI-AUTOMATED TESTS • Flashlight (camera-verified light emission) • Brightness range, Proximity sensor, Ambient light • Earpiece audio path, Volume buttons, Taptic Engine USER-ASSISTED TESTS • Touchscreen grid with multi-touch verification • Display colour cycle for dead pixel detection • OLED burn-in, uniformity, and ghost touch detection • Speaker and microphone with auto-detection • All camera lenses including rear microphone Results are sent directly to the BlankState Mac application for inclusion in certified device health reports. Designed for R2v3 and ADISA compliance workflows.

PhoneCheck helps you inspect a used phone before you buy it. Buying a second-hand device from a marketplace, reseller, or another person? Run a guided hardware inspection and check the most important functions before handing over your money. PhoneCheck walks you through practical tests and creates a clear inspection result based on the checks you actually perform. COMPLETE DEVICE INSPECTION Test important parts of the device through a simple guided process. Screen Tests • Touchscreen grid test • Multi-touch test • Dead pixel check • OLED and image retention check • Display brightness check Audio Tests • Main speaker • Earpiece • Microphone recording and playback Camera Tests • Rear camera • Front camera • Focus test • Flash and torch test Sensor Tests • Accelerometer • Gyroscope • Compass • Proximity sensor • Haptics and vibration Connectivity Tests • Wi-Fi and network connectivity • Bluetooth • GPS and location • Cellular connectivity PHYSICAL INSPECTION PhoneCheck also guides you through important checks that require visual or manual inspection, including: • Side and volume buttons • Charging port • Face ID or Touch ID • Screen condition • Back glass condition • Front and rear cameras • Speaker and microphone condition DEVICE INFORMATION View useful information available from the device, including: • Device model • Operating system version • Storage capacity • Available storage • Battery percentage • Charging status • Display information • Sensor and camera capabilities PhoneCheck uses public system APIs and does not claim access to restricted information that third-party applications cannot reliably obtain. CLEAR INSPECTION RESULTS After completing the inspection, PhoneCheck summarizes the results using easy-to-understand statuses: . Passed . Needs Attention . Failed . Skipped or Unavailable You can quickly see which areas performed correctly and which ones deserve a closer look before purchasing the device. RETEST PROBLEMS Found something suspicious? Run failed or questionable tests again without repeating the entire inspection. SAVE YOUR INSPECTIONS Keep previous inspection results on your device so you can review and compare devices later. BUILT FOR SECOND-HAND BUYERS PhoneCheck is useful when checking a device from: • Facebook Marketplace • eBay • Local marketplaces • Used-device stores • Refurbished-device sellers • Private sellers PhoneCheck reports only the results of tests performed using the app and user-confirmed inspection items. It does not guarantee a device's authenticity, ownership status, repair history, future performance, or overall condition.