iPhone Codes: Unlock Hidden Features on Your iPhone

Ever wonder why your iPhone feels like it’s holding back? The truth is, Apple hides a bunch of shortcuts behind simple dial‑in codes and secret menus. You don’t need to be a developer to use them—just a few taps and you’ll see faster performance, longer battery life, and fixes for common glitches.

Must‑Know Diagnostic and Battery Codes

One of the easiest ways to check your iPhone’s health is to use the hidden *#*#4636#*#* style code (though Apple’s format differs). Instead, try these steps:

• Open Settings → Battery and enable Battery Health. You’ll see the maximum capacity and whether it needs service.
• Dial *#06# to reveal your device’s IMEI. It’s handy when you contact support.
• For a quick performance snapshot, go to Settings → Privacy → Analytics & Improvements → Analytics Data. Look for entries that start with log-aggregated to see if any app is draining resources.

These “codes” don’t require a special app—just a few menu clicks. Knowing your battery’s max capacity helps you decide whether a cheap external battery or a full replacement is the better move.

Secret iOS Recovery Modes You Shouldn't Ignore

When your iPhone freezes, won’t turn on, or gets stuck in a boot loop, you have three recovery options. Each one is accessed without a computer, but you’ll need a USB cable if you want to connect to iTunes later.

• Force Restart: Press and quickly release Volume Up, then Volume Down, and hold the Side button until the Apple logo appears. This is your first line of defense.
• Recovery Mode: Connect the iPhone to a computer, open iTunes/Finder, then press and hold the Side button while quickly pressing Volume Down. Keep holding the Side button until you see the “Connect to iTunes” screen. iTunes will prompt you to update or restore.
• DFU Mode: This is the deepest reset. With the phone connected, press Volume Up, then Volume Down, then hold the Side button for 10 seconds. Without releasing the Side button, press Volume Down for another 5 seconds, then release the Side button while keeping Volume Down pressed for 10 more seconds. The screen stays black, and iTunes/Finder will detect a device in DFU mode, ready for a fresh install.

Most users will never need DFU mode, but it’s a lifesaver when the firmware is corrupted. Remember, a restore wipes all data, so back up to iCloud or your computer first.

Beyond recovery, there are a few everyday shortcuts that improve efficiency. For example, typing **#21# in the Phone app (on many carriers) shows call forwarding status—handy if you notice missed calls after a network change. Another quick tip: holding the Power button + Volume Up for a second opens the camera, letting you snap a photo instantly.

These hidden codes and modes are free, legal, and supported by Apple’s own documentation. They give you more control over your device without extra apps or subscriptions. Try them the next time your iPhone feels sluggish, the battery dips faster, or you’re stuck on a black screen.

Got a favorite iPhone code that saved you time? Share it with friends and keep the community smarter. The more we know, the better we can use our phones and avoid unnecessary service calls.