Moving Signal to a new phone is not the same as signing in to an ordinary cloud chat service. Message history is protected by the method you prepared before the move, and the correct route depends on whether the old phone still works, whether you are staying on the same mobile platform, and whether Signal Secure Backups were already enabled.
This guide turns those choices into a practical sequence. It is written for readers who want to preserve useful conversation history without weakening account security or erasing the old phone too early. For a shorter explanation of encryption, PINs, linked devices, and backups, start with the Signal privacy guides. This site is an independent information guide, not Signal support.
1. Choose the transfer route before changing anything
There are three different ways to bring history to a replacement phone. They are not interchangeable:
- Signal Secure Backups: an optional end-to-end encrypted archive available on supported mobile and desktop versions. For a phone move, confirm that a usable backup exists, retain its recovery key, and check the restore options on the destination.
- Direct device transfer: a phone-to-phone move during setup. It requires the old phone to be available and works between compatible devices on the same platform, such as Android to Android or iPhone to iPhone.
- On-device backup: an encrypted backup stored in a location you control. Platform support expanded in September 2026; verify the archive format and destination app before restoring, and retain the complete backup data and recovery key.
A linked desktop is not automatically a recovery source. Supported desktop versions can explicitly create an encrypted backup, with an official restore process for a primary Android device. Check the destination platform and backup format before relying on it; linking alone does not establish a backup plan.
A fast decision rule
- Old phone works and both phones use the same platform: direct transfer is usually the most complete path.
- Old phone is unavailable, or the destination uses a different platform: check an existing Secure Backup or a compatible on-device archive, together with its recovery key.
- A verified on-device backup is available: check that its format and the destination version support restoration before choosing that route.
- No old phone and no prepared backup: register carefully, but expect previous phone history to remain unavailable.
2. Complete this pre-transfer checklist
- Update Signal on both phones. Transfer and restore screens can change, and current versions reduce compatibility problems.
- Confirm the phone number you intend to register. Secure Backup restoration expects the same Signal account and phone number. If the number itself is changing, complete Signal's supported number-change process on the working old phone before moving devices.
- Check your backup, not just the setting. Open Signal Settings > Backups and confirm the relevant backup type is enabled and current.
- Record the recovery credential offline. Secure Backups use a unique 64-character recovery key. Signal cannot retrieve, reset, or bypass it.
- Keep the old phone charged, unlocked, and nearby. Do not factory-reset it, trade it in, uninstall Signal, or wipe storage before the new phone passes verification.
- Allow enough local storage and a stable connection. A large history or media library takes time. Disable restrictive VPN rules temporarily if they interfere with the transfer.
- Review linked devices. Note which desktops or tablets should remain linked, then check them again after the move.
3. Using Signal Secure Backups
Secure Backups are opt-in. When enabled, Signal creates an end-to-end encrypted archive that only the recovery key can unlock. The free backup includes all text messages and recent media from the last 45 days; an optional paid tier can retain more media. View-once messages and messages scheduled to disappear within the next 24 hours are excluded.
Before moving, open Signal Settings > Backups, confirm the feature is on, and store the recovery key somewhere separate from the phone. A password manager, an offline paper record kept securely, or another controlled storage method is safer than sending the key to yourself in a chat. The Signal PIN is not a substitute for this recovery key.
On the replacement phone, choose the restore option during initial Signal setup and enter the recovery key exactly. Do not skip this screen on the assumption that history can be imported later. Signal's current guidance says Secure Backups are restored during setup; if the restore step was skipped, reinstalling and starting setup again may be required.
Secure Backups and the newer on-device backup format offer cross-platform restoration in supported versions. Direct phone-to-phone transfers still require compatible devices on the same platform. Check legacy archives separately rather than treating every old Android backup as the newer format.
4. Direct Android-to-Android transfer
Install Signal on the new Android phone and choose Transfer or restore account, followed by the option to transfer from an Android device. On the old phone, open Signal Settings > Account > Transfer account. Keep the phones close, grant the requested local permissions, and compare the verification code displayed on both devices before continuing.
The connection may rely on local device-to-device networking. If the phones do not find each other, turn off a VPN or hotspot that may interfere with Wi-Fi Direct, confirm permissions on both phones, and restart both devices before trying again. Do not move on merely because registration succeeded; open several old conversations and attachments first.
5. Direct iPhone-to-iPhone transfer
For a direct iOS move, both iPhones must be available and supported, and Signal needs the permissions used by the transfer flow. The new iPhone displays the transfer option during setup; the old iPhone authorizes the move and uses the in-app process to connect the devices.
Treat this as a move, not a second independent copy. Signal's support documentation explains that account information and message history are moved to the new iOS device and removed from the old one. Keep both devices powered, close together, and undisturbed until the process reports completion.
6. On-device backups: verify the format before relying on them
An on-device backup is encrypted data saved in a location you control. Preserve the complete backup folder and its matching recovery key before resetting a device. Check the destination app's supported restore flow and choose the correct archive during setup; a legacy Android backup may have different requirements from the newer cross-platform format.
A local archive is not the same as the hosted Secure Backups service, and neither can help if the required backup data or recovery key is missing. Check the archive's date, contents, and supported destination before relying on it. Creating an empty backup on the replacement phone does not prove the old history was preserved.
7. Verify the new phone before erasing the old one
A successful launch is only the first check. Use this acceptance test:
- Open several recent and older conversations.
- Check photos, files, voice notes, and quoted replies from different dates.
- Send a test message and place a brief test call with a trusted contact.
- Confirm profile details, privacy options, blocked contacts, and default disappearing-message settings.
- Review Signal Settings > Linked devices and remove anything you no longer recognize or control.
- Ask an important contact to confirm your identity if a safety-number change appears.
A changed safety number is not automatically evidence of an attack; device changes and reinstalls can legitimately cause it. For sensitive conversations, verify through another trusted channel rather than dismissing the notice without checking.
8. Common mistakes that cause avoidable loss
- Uninstalling first: local history may be removed before a backup or transfer is available.
- Confusing a Signal PIN with a backup key: the PIN helps with account-related data and registration protection; it does not decrypt a Secure Backup.
- Assuming linking creates a backup: a desktop must explicitly create a supported encrypted backup; an active link alone is not a recovery plan.
- Skipping restore during setup: importing later may not be supported for the chosen backup type.
- Wiping the old phone after seeing the home screen: always inspect old messages and media first.
- Expecting backup archives to merge: Signal does not currently support merging separate Secure Backups.
9. The safest long-term routine
Review your chosen backup method whenever you change phones, platforms, or storage habits. Keep the recovery key separate from the device, check that the archive is still enabled, update Signal from an authorized source, and rehearse the decision path before a real emergency. The best migration is the one prepared while both the account and the old phone are still under your control.
For installation sources and supported systems, use this site's download guide. For the distinction between PINs, SMS codes, and backup keys, see the account credentials section. Official feature details should always be rechecked in Signal Support's backup and transfer overview and Secure Backups documentation.
Reviewed October 11, 2026. This revision updates the backup-platform guidance following Signal's September 28, 2026 backup announcement and its Desktop backup instructions. New-format support depends on the app version and destination restore flow; older archives must be checked separately.