Independent iPhone Duo support

Fix the symptom. Keep the signal.

Fast, careful answers for setup, transfer, charging, connectivity, foldable care, and iOS 27—built around the question you actually have.

Browse all guides Start with setup

01Find the failing layer before resetting everything.

02Separate Apple-confirmed facts from provisional clues.

Need an answer now?

Start with the symptom, not the model page.

These are the first focused paths for the launch window. Each one has a safe stop condition.

01 · Charging & powerwon’t charge: a safe check sequenceA reversible charging sequence adapted from Apple Support, with explicit stop points for a foldable phone and USB-C port.02 · Getting startedfirst-day setup checklist before you erase the old phoneThe most expensive setup mistake is often an early erase. Use this order to preserve a recovery path while the new phone is still being configured.03 · Foldable careinner screen or outer screen not workingFirst determine whether the phone is powered and whether one or both panels are affected. Do not turn a display symptom into hinge damage by forcing it.04 · Getting startedeSIM setup and transfer: what to check firstBecause iPhone Duo is eSIM-only, cellular activation is a first-day dependency—not a detail to leave until after a trade-in.05 · iOS 27 featuresapp compatibility and Split View: what worksA decision-first guide to whether existing apps run, when they fill the inner display, and why two apps may behave differently in Split View.

Choose a lane

A compact help system that can grow.

Five hubs keep related questions together so a useful answer is one click away from the next decision.

01 / hubSet up without losing the plotThe first-day cluster is built around irreversible mistakes: incomplete backups, a missed transfer prompt, or an eSIM activated on the wrong device.02 / hubcharging and power fixesStart with the reversible checks. Stop before forcing a cable into a damaged port or repeatedly opening a visibly damaged foldable display.03 / hubWi-Fi, Bluetooth, cellular, and transfer helpConnectivity problems have several possible owners: the iPhone Duo, the network, the accessory, the carrier, or the transfer state. Work out which one before resetting everything.04 / hubCare for the inner display and hingeFoldable hardware deserves conservative advice. The goal is to protect a delicate component while distinguishing normal design behavior from a possible failure.05 / hubUse the iPhone Duo’s iOS 27 modes with clear expectationsFeature help should tell you what the product page actually promises, then mark app, region, rollout, and timing dependencies.

Launch snapshot · checked Sep 10, 2026

What Apple confirms today.

Apple’s launch release and current product page list October 16 pre-orders at 5:00 a.m. Pacific Time and availability beginning October 23, 2026. They describe a foldable 7.6-inch inner display, a 5.4-inch outer display, eSIM-only cellular, and iPhone Duo availability with iOS 27.1.

These are source-backed launch facts—not a promise about retailer stock, carrier activation, app behavior, or long-term durability.

See launch facts Open the specs reference →

Editorial promise

Every guide tells you:

What is confirmed by Apple or another primary source.
What is a provisional inference or a carrier/app variable.
When a safe answer ends with Apple or authorized service.