// Week mapping (0-9, then letters) const weekNumbers = '1':'1','2':'2','3':'3','4':'4','5':'5','6':'6','7':'7','8':'8','9':'9','0':'10', 'C':'11','D':'12','F':'13','G':'14','H':'15','J':'16','K':'17','L':'18','M':'19','N':'20', 'P':'21','Q':'22','R':'23','T':'24','V':'25','W':'26','X':'27','Y':'28' ;
const factoryCode = serial.charAt(0); // First char = factory const yearCode = serial.charAt(2); // Third char = year (approx) const weekCode = serial.charAt(3); // Fourth char = week iphone serial number checker
It validates the format and decodes model, color, storage, and manufacturing info from the serial number. <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>iPhone Serial Number Checker</title> <style> body font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; max-width: 600px; margin: 2rem auto; padding: 1rem; background: #f5f5f7; .card background: white; border-radius: 1.5rem; padding: 1.5rem; box-shadow: 0 8px 20px rgba(0,0,0,0.05); h1 font-size: 1.8rem; margin-top: 0; color: #1c1c1e; label font-weight: 500; display: block; margin-bottom: 0.5rem; input width: 100%; padding: 0.8rem; font-size: 1rem; border: 1px solid #c6c6c8; border-radius: 0.75rem; box-sizing: border-box; font-family: monospace; button margin-top: 1rem; background: #007aff; color: white; border: none; padding: 0.7rem 1.5rem; font-size: 1rem; border-radius: 2rem; cursor: pointer; font-weight: 500; button:hover background: #005fc1; .result margin-top: 1.5rem; padding: 1rem; background: #f2f2f6; border-radius: 1rem; font-size: 0.95rem; white-space: pre-wrap; word-break: break-word; .error color: #d70015; background: #ffe6e8; .info color: #1c1c1e; hr margin: 1rem 0; border: none; border-top: 1px solid #e5e5ea; .note font-size: 0.8rem; color: #6c6c70; margin-top: 1rem; </style> </head> <body> <div class="card"> <h1>📱 iPhone Serial Number Checker</h1> <p>Enter an iPhone serial number to validate format and see basic decoded info.</p> <label for="serial">Serial Number</label> <input type="text" id="serial" placeholder="e.g., F17LJ1D2XXXX" autocomplete="off"> <button id="checkBtn">Check Serial</button> // Week mapping (0-9, then letters) const weekNumbers
const factory = factories[factoryCode]
// Year mapping (simplified – real mapping shifts after 2010) // This uses a basic table for 2010–2030 const yearMap = '0': '2010', '1': '2011', '2': '2012', '3': '2013', '4': '2014', '5': '2015', '6': '2016', '7': '2017', '8': '2018', '9': '2019', 'C': '2020', 'D': '2021', 'F': '2022', 'G': '2023', 'H': '2024', 'J': '2025', 'K': '2026', 'L': '2027', 'M': '2028', 'N': '2029' ; // Week mapping (0-9