Last fall, we told you about Apple's iPhone Signal Strength Placebo, an iPhone code that helps diagnose problems connecting to AT&T's 3G network. Dialing *3001#123456#* and pressing "Call" starts a ...
iPhone secret codes are a powerful and fun way to peek behind the curtain of your trusted device. Whether to troubleshoot, protect your privacy, or simply geek out, these tested codes in October 2025 ...
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