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MacPreCheck

Universal Pre-Purchase Diagnostic & Negotiation Suite

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🛡️ Apple Silicon (M1 • M2 • M3 • M4)

Idiot-Proof MacBook Inspector

Standing at a reseller shop? Follow these 10 verified steps in order before paying. Spot corporate MDM locks, fake batteries, degraded SSDs, and negotiate fair discounts in Bangladesh.

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Not Inspected 0 of 28 checks completed
1. MDM Lock 2. Serial Match 3. Battery & Brick 4. SSD Speed 5. Screen & Pixels 6. Keyboard 7. Audio & Media 8. Ports & Heat 9. Diagnostics 10. BD Negotiation

💻 Terminal Output Decoder ("Paste & Decode")

Did you run check_mac.sh or native terminal commands on the target Mac? Paste the text below to decode it into a plain-English health scorecard.

AUTOMATIC AUDIT
PRESETS:
Terminal Console Input (Paste Here)
Tip: Runs 100% locally in browser. No private serials or logs leave your computer.

⌨️ Interactive Mac Keyboard Matrix Tester

Press keys on the physical MacBook keyboard. They will highlight yellow and turn green. Test corners of spacebar and modifier keys.

Tested: 0 / 78 keys (0%)
Shortcuts like Tab, Space & modifiers are captured safely without leaving the tab.

🔍 Tricky Physical Keys Checklist:

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Spacebar Corners: Click far-left and far-right tips to verify scissor stabilizer bars.
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Caps Lock LED: Confirm green hardware indicator light turns on when pressed.
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Fn / Globe Key: Tap to verify macOS emoji / input switcher pops up.
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Touch ID Button: Click mechanically to ensure spring rebound is firm.

🖥️ Display Uniformity & Dead Pixel Inspector

Spot dead sub-pixels, flexgate stage-lighting shadows, and aftermarket screen replacements.

EXPENSIVE PART

Shortcut: Click or press Space to cycle colors • Press Esc to exit tester

Pure White Screen
Inspect for black dead pixels, bottom edge "stage light" shadows (flex cable tear), and dirty screen patches.
Pure Black Screen
Check in dim lighting for bright stuck sub-pixels, edge backlight bleeding, or Mini-LED dimming zone failures.
True Tone Verification
Open System Settings > Displays. If the True Tone toggle is absent, the display was swapped with a counterfeit panel!
ProMotion 120Hz (Pro)
On MacBook Pro models, verify Refresh Rate shows ProMotion (120Hz). A 60Hz lock indicates a fake screen swap.

🎙️ Audio, Microphone & Camera Inspector

Test microphones, speaker cones at 100% volume, and the FaceTime HD camera directly in your browser.

IN-BROWSER TEST

🎯 Model Benchmark Targets & Red Flags

Select the exact MacBook model you are inspecting to see expected Geekbench scores, SSD speeds, and known generation pitfalls.

REFERENCE TARGETS

💰 Bangladesh Reseller Negotiation & Cash Memo Guide

Calculate legitimate price deductions in ৳ BDT based on defects found, and generate legal cash memo warranty clauses.

Recommended Cash Deduction
৳0 BDT
Deduct this amount directly from the seller's asking price.
Based on actual Dhaka market replacement part rates
Never accept verbal promises — get it written!

Check Any Detected Flaws / Differences:

Check off defects found above to generate ready-to-use bargaining scripts in Bangla.

📝 Must-Have Cash Memo Warranty Clauses (Show to Shopkeeper):

Resellers frequently offer a useless "Service Warranty" (labor only). Demand a 7 to 10 Days Unconditional Replacement Warranty and make sure these exact clauses are handwritten or printed with the shop seal!