Free Diagnostic Service in Chicago
Not sure what's wrong with your device? Demo Repair Shop provides free diagnostics for phones, tablets, laptops, and consoles in Chicago. Know exactly what the issue is and what it will cost before any work begins.
- Free diagnosis before any work begins
- Same-day service on most repairs
- 90-day warranty on parts and workmanship
- OEM-quality parts, certified technicians
What we diagnose
Full diagnostic for iPhones, Androids, iPads — screen, battery, charging, camera, and board.
Hardware and software diagnostics for boot issues, performance, battery, and display.
PS5, Xbox, Nintendo Switch — power issues, disc drive, HDMI, and overheating.
Apple Watch and smartwatch diagnostics for charging, display, and battery issues.
We evaluate the extent of damage and give you an honest recovery recommendation.
Slow devices, excessive heat, or battery drain that doesn't have an obvious cause.
How diagnostic service works
Free diagnosis
We inspect your device, identify the issue, and check for additional damage before quoting any repair.
Quote approval
You receive a clear quote before we start. No surprises, no hidden fees.
Repair and testing
A certified technician completes the repair, tests all functions, and explains the warranty before you leave.
Diagnostic Service near you in Chicago
Demo Repair Shop serves customers throughout Chicago and surrounding neighborhoods. Walk in for a free diagnosis — no appointment needed for most repairs.
See all our repair services, visit our Chicago location, or get an instant quote online.
Serving Chicago and surrounding neighborhoods. Walk-ins always welcome.
Chicago customers trust Demo Repair Shop
"Fast, honest, and exactly what they quoted. Had my device back the same afternoon."
"Explained everything before touching my device. No pressure, clear pricing, great repair."
"Walked in without an appointment and was out in under an hour. Highly recommend."
Diagnostic Service FAQs
Not sure what's wrong?
Walk in for a free diagnostic. Know the issue and the cost before you commit to anything.