No transfer usually comes down to cable, Wi-Fi, storage, or app limits—check each and try the matched fix below.
You set up the new handset, start the copy, then it freezes or fails. This guide pinpoints the real blockers and gives fixes that work. The steps cover iPhone to iPhone, Android to Android, and moves between the two. You will see quick checks first, then deeper cures when the easy wins do not stick.
Quick Checks That Solve Most Stalls
Run through these in order. Each takes seconds and rules out a common snag.
| Symptom | Likely Cause | Fast Fix |
|---|---|---|
| Copy never starts | Bad cable or adapter | Swap cable; use the maker’s cable or a certified one |
| Wi-Fi transfer drops | Phone switches networks or sleeps | Keep both on charge; airplane mode on the sender, then enable Wi-Fi |
| Out of space | New device storage too small | Trim large apps, videos, or pick a partial transfer |
| Code won’t pair | Wrong method or wrong screen | Reset setup and start from the platform’s transfer screen |
| Stuck at X% | Background apps or VPN | Disable VPN and data saver; keep screens unlocked |
| Some items missing | App or format not allowed cross-platform | Use the app’s cloud backup or an export feature |
How Phone To Phone Copies Work
Most tools move data by cable or by a direct Wi-Fi link. Cable is usually faster and steadier. Wireless works well when the signal stays strong and both phones remain awake. Platform tools also rebuild accounts and apps where allowed.
Common Reasons The Transfer Fails
Cable, Port, And Adapter Issues
Loose plugs, lint in a port, or a cheap cable will halt a copy. Use short, high-quality leads. For USB-C to Lightning or USB-C to USB-C, pick a data cable, not a charge-only lead. If you need an adapter, use one from the phone maker.
Wi-Fi Drops Or Conflicts
Wireless copies rely on a private link between the two phones. Calls, messages, or a jump to another network can break that link. Plug in both phones, keep screens on, and stop network-heavy apps during the move.
Not Enough Storage On The New Device
If the target has less free space than the source, the process will fail. Remove bulky videos from the old phone, or skip media in the wizard, then add them later from cloud photos or a computer.
Old Software Versions
Outdated system builds or transfer apps can misbehave. Update both phones first, then try again. This applies to the built-in tools and any brand-specific wizards.
Battery, Heat, And Sleep Settings
Low power mode, thermal throttling, or screen timeouts can pause a copy. Charge to at least 50%, place phones on a cool surface, and set auto-lock to a longer window during the transfer.
iPhone To iPhone: The Cleanest Paths
Apple’s device-to-device setup can rebuild the new phone from the old one with a cable or a local wireless link. If direct copy fails, restore from an iCloud backup or a Finder/iTunes backup on a Mac or PC. See Apple’s transfer from a previous device page for the exact taps and options.
Fixes When The iPhone Copy Freezes
- Keep both on charge and near each other; leave the old phone unlocked.
- Turn off VPN, Low Data mode, and Low Power mode during the move.
- If using a Mac or PC backup, update Finder or iTunes first, then retry.
- When all else fails, erase the new device and run setup again from the start.
Android To Android: Built-In Tools Work Best
On most phones you can copy apps, texts, photos, and more by cable or wirelessly during setup. Google’s guide lists versions, cable options, and the full flow. See the copy apps and data steps.
Brand Tools Like Smart Switch
Samsung’s wizard can move content by cable, Wi-Fi, or a computer backup. If you use it, match the app version on both phones, keep them powered, and try a cable path for large media or long message histories.
Fixes When Android Transfer Fails
- Use the box cable or a certified USB-C cable. Avoid very long leads.
- Turn off hotspot, Data Saver, and any battery saver on both phones.
- Remove old Wi-Fi profiles on the sender, then join the same network the receiver shows.
- Update Google Play services and the system update before you retry.
Android To iPhone: What Works And What Does Not
The Move to iOS app copies contacts, messages, camera photos, videos, mail accounts, and a selection of apps. Big videos and flaky Wi-Fi can stall the hand-off. Keep both devices on charge, keep the app onscreen, and let the iPhone create its private network. Apple’s Move to iOS guide shows the full list and the steps.
Fixes When Moving From Android To iPhone Fails
- Put the Android in airplane mode, then turn Wi-Fi back on.
- Clear space on the iPhone or choose fewer items on the first run.
- Stop phone calls and messages during the copy; leave both screens awake.
- If it still stalls, power down both phones, restart, and run the app again.
App And Account Limits To Watch
Messages And Chats
RCS and iMessage remain tied to each platform. Brand tools can move SMS and many MMS threads. Some chat apps need their own backup flow to carry over history.
Banking, Auth, And Codes
Security apps often require a fresh sign-in, device re-register, or a QR re-pair. Plan time for this step, since codes may live on one phone at a time by design.
Media Libraries
Camera rolls transfer well. DRM-locked music or rentals may not. For music and podcasts, cloud libraries or a desktop app restore is the safe route.
Cable And Adapter Checklist
- Match ends: USB-C to USB-C for most Android phones; USB-C to Lightning for many iPhones.
- Pick data-rated cables; avoid “charge only.” Look for USB-IF or MFi badges.
- If you need a dongle, pick an OEM adapter or a known brand.
- Do not daisy-chain hubs or pass through a laptop during phone-to-phone copy.
When Wireless Is Your Only Choice
Keep the phones on charge, screens on, and place them side by side. Turn off nearby hotspots and move away from busy routers. If you see drops at the same stage, try the cable route instead.
What Transfers Natively, And What Needs A Manual Move
| Path | Included Natively | Manual Steps |
|---|---|---|
| iPhone → iPhone | Apps, app data, messages, photos, settings | Re-add some bank or authenticator apps |
| Android → Android | Apps, messages, photos, settings, calls | Re-log into sensitive apps; re-pair wearables |
| Android → iPhone | Contacts, messages, photos, mail accounts, media | Re-download platform-specific apps; adjust ringtones |
Troubleshoot By Scenario
Setup Code Won’t Appear
Back up from the old phone first, then erase the new phone and start setup again. Pick the correct “copy data” path on the welcome screens. Many failed runs trace back to starting from the wrong menu.
Transfer Stuck At The Same Percentage
Check space on the target. Move or delete a few large videos or games, then try again. Large blocks of cached files can also choke the copy; clear them first.
Only Photos Came Across
Your path might not carry app data across platforms. Use the app’s own cloud sync, export, or a desktop backup to restore the rest.
Still Can’t Move Phone Data To A New Device? The Checklist
Still stuck moving phone data to a fresh device? Use this section as a guided checklist to resolve the snags that keep a copy from finishing.
Step-By-Step Reset Plan
- Charge both phones to full and plug them in.
- Update system software and the transfer tool.
- Turn off VPN, data saver, battery saver, and hotspot.
- Try a short data cable on a flat surface with screens on.
- If wireless, place phones together and leave the app onscreen.
- Retry with a lighter set of data, then add media later.
- As a last step, factory reset the new device and run setup again.
When To Switch Methods
If a direct copy keeps failing, pick a different route: iCloud or Finder for iPhone, Google backup for Android, or a brand wizard on a Galaxy phone. You can still bring the rest later with cloud photos, a computer, or a chat app’s own restore flow.