The TSA has required travelers to power on electronic devices since 2014 to ensure they are functional and not disguised weapons. If a phone lacks power, it may trigger additional screening because devices can serve as detonators or store explosives. While placing large electronics in bins is standard, agents may request a phone be turned on to verify it is not a dummy.
Border agents have broader authority under the border search exception. Customs and Border Protection (CBP) can conduct routine inspections of phones without a warrant, but a thorough search requires reasonable suspicion. A 2025 proposal to request five-year social media history remains unenacted.
Travelers should ensure their phones are charged to avoid delays. Most passengers will not face this request, but if asked, compliance is required to confirm the device is genuine.
Source: Engadget · Summarized by HeadlinesBriefing