Your Android or iPhone can probably already scan QR codes. Here's how to do it no matter what phone you have.

Google has updated the APIs behind QR code and barcode scanning to enable auto-zoom function. Read on to know more about this new feature.

TECH How to scan a QR code with your iPhone or Android phone (no apps needed) QR codes are those pixelated squares you see in restaurants, advertisements, stores, food packaging, business cards ...