Device Troubleshooting
Work through related device troubleshooting symptoms while you stay in control.
Screen diagnostics and device guidance
Test your screen and make better device decisions.
Run browser-based screen tests and repair tools for pixels, touch issues, burn-in, color, and other display checks. Understand common display problems, damage, protection, and what to do next. Look up exact-device screen specs and use our buying guides to make a more informed purchase.
Free to useNo downloadNo account required
Start with what you know.
Whether you want to check a display, understand what’s wrong, investigate damage, or decide what to buy, start with the path that matches your situation.
TestTest a screenCheck pixels, touch, color, bleed, burn-in, or refresh rate in your browser.ProblemsUnderstand a screen problemStart with dark spots, lines, ghost touch, discoloration, or dead touch areas.DamageCheck screen damageRoute pressure, liquid, heat, cracks, and urgent backup or documentation needs.DecisionsChoose a repair pathCompare limited browser repair tools with repair, replacement, warranty, or return decisions.ReferenceFind your exact deviceLook up screen specs, display context, and device-specific next steps.BuyingBrowse buying guidesCompare protection, charging, displays, accessories, and ownership decisions.
A clearer path from what you see to the next step.
Start with what you can observe, then use the right test, damage guide, or repair decision. ScreenDetect helps you narrow the problem without pretending a browser can identify every failed component.
Test the screen before you decide what failed
Browser patterns for pixels, touch, bleed, burn-in, color, and refresh — run on the device that has the problem.
Screen Color Test
White, black, gray, and RGB fullscreen patterns.Dead Pixel Test
Black dots, stuck subpixels, and hot pixels on clean patterns.Backlight Bleed Test
Edge glow, cloudy blacks, and IPS glow in a dark-room check.Burn-In Test
Image retention and OLED burn-in on neutral screens.Touch Screen Test
Dead zones, missed taps, drift, and multi-touch response.Refresh Rate Test
Browser-effective Hz, pacing, and stuck-at-60 checks.Try a limited browser repair when the pattern fits
Stuck-pixel cycling, mild retention mitigation, and guided calibration — not for cracked glass, liquid, or spreading damage.
If the screen changed after damage, start here
Pick your device under the cause — or open the cause title for the full triage guide.
Look up screen specs for your device
Compare normalized screen specs, panel context, common problems, and test routing across phones, tablets, laptops, monitors, and TVs.
Galaxy S26
The Samsung Galaxy S26 has a compact 6.3-inch Dynamic AMOLED 2X screen with FHD+ sharpness, adaptive 120Hz motion, and enough automatic-brightness headroom for demanding outdoor use. It suits people who want a smaller flagship without dropping to a 60Hz panel. Its main screen tradeoff is OLED flicker: independent testing found low-frequency PWM that can bother sensitive eyes.
iPhone 17 Pro Max
The iPhone 17 Pro Max uses a 6.9-inch Super Retina XDR OLED display with 2868 × 1320 resolution, 460 ppi, adaptive ProMotion up to 120Hz, HDR playback, and Ceramic Shield 2 on the front.
Alienware AW3426DW
The Alienware AW3426DW is a 34-inch 3440 × 1440 QD-OLED ultrawide built for high-frame-rate PC gaming, with a 280Hz ceiling, deep OLED blacks, and unusually strong SDR brightness for this panel class. Its main buying tradeoff is practical rather than visual: 21:9 support varies by game, reflections still matter, and laptop users do not get a one-cable USB-C setup. This profile helps you check those risks before buying.Settle the tradeoffs before you spend
Protectors, panel types, glow vs bleed, and return risk — pick your device, then open a guide.
Guided remote support
Get practical help with your personal technology
Use free tests and guides when you can diagnose yourself. Book U.S.-based guided help for setup, troubleshooting, data, connectivity, cleanup, or everyday technology lessons.
Backup & Transfer
Protect or move important data before repair, replacement, or reset.
Photo & Storage Cleanup
Safely sort storage, photos, downloads, and files without guessing what to remove.
Device Setup
Set up a new, replacement, or reset device for comfortable everyday use.
Home Connectivity
Connect home Wi-Fi, printers, and everyday devices with guided remote help.
Personal Tech Help
Learn email, video calls, AI, online shopping, forms, or bring several questions to one session.
How ScreenDetect builds its guidance.
Every test, device profile, and buying guide should make clear what the evidence shows, where it stops, and how ScreenDetect reaches a recommendation.
How we write screen profiles
How we choose products
About ScreenDetect
ScreenDetect FAQs
Answers on tests, damage routing, repair limits, and what browser workflows can prove.