Apple iPhone 12
Apple's 2020 mainstream iPhone. 6.1-inch OLED, A14 Bionic, 12MP+12MP dual camera, MagSafe, first iPhone with 5G. Still in widespread use; supports modern iOS.
Open Apple's official support page →
Quick reference
Where is the IMEI on iPhone 12?
Settings → General → About → IMEI. Or dial *#06#. SIM tray on the right side; IMEI is also printed on the SIM tray.
How do I activate eSIM on iPhone 12?
Settings → Cellular → Add eSIM. iPhone 12 (US model) supports both physical SIM and eSIM. You can scan a carrier QR code or enter activation details manually.
Does iPhone 12 support 5G?
Yes. Sub-6 GHz 5G on Verizon, T-Mobile, AT&T. mmWave 5G on Verizon and AT&T (US models). Settings → Cellular → Cellular Data Options → Voice & Data lets you toggle 5G on/auto/off.
How do I use MagSafe on iPhone 12?
MagSafe accessories (chargers, wallets, cases) snap magnetically to the back. The MagSafe charger delivers up to 15W wireless charging when plugged into a 20W+ USB-C power adapter. Standard Qi wireless chargers work too but cap at 7.5W.
How long will iPhone 12 get iOS updates?
Apple typically supports iPhones for 5-6 major iOS versions. iPhone 12 received iOS 17 in 2023, iOS 18 in 2024, and is expected to support at least one more major version. Security patches continue past that.
How do I factory reset iPhone 12?
Settings → General → Transfer or Reset iPhone → Erase All Content and Settings. Apple ID password required to disable Activation Lock. Back up first.
Quick-reference answers above are summaries. For the authoritative source, see Apple's support page for the iPhone 12.