Signal does not store your messages on any server — that is the point of Signal. It also means there is no cloud restore waiting for you on the new phone. Your history moves only if you carry it: a local backup file from the old phone, and the 30-digit passphrase that unlocks it. Lose the passphrase and the backup is an encrypted brick, by design.
The process takes about fifteen minutes when done in the right order, and the order is everything: the restore must happen during the new phone’s first Signal setup, before you register your number.
Quick Answer
On the old phone, open Signal, go to Settings, Chats, Chat backups, and turn backups on; write down the 30-digit passphrase and create a fresh backup. Copy the signal-YYYY-MM-DD backup file from the Signal/Backups folder to the new phone. Install Signal on the new phone, and on its first screen choose Restore backup, point it at the file, enter the passphrase, and only then register your number. Verify your chats before wiping the old phone.
Step 1: Create the Backup on the Old Phone
- Open Signal’s backup settings: profile icon, Settings, Chats, Chat backups.
- Turn on backups if they are off. Signal displays your 30-digit passphrase in groups of five. Write it down on paper or save it in a password manager. Screenshot it too and move the screenshot somewhere safe — then delete it from the phone’s gallery later.
- Tap Create backup and wait for it to finish. Large histories with years of media produce files of several gigabytes and can take a while. Keep the phone charged and on the backup screen.
- Note the file’s location: Internal storage, Signal, Backups. The filename carries the date and time, like signal-2026-10-21-….backup.
Signal’s own Signal Support pages document this process, including the warning that bears repeating: there is no passphrase reset, no recovery email, no support-desk workaround. The digits are the only key.
Step 2: Move the Backup File to the New Phone
Copy the .backup file using whichever route you trust:
- USB cable to a PC, then to the new phone — the most dependable path for multi-gigabyte files.
- A USB-C flash drive or SD card as a middleman.
- A local Wi-Fi transfer app — fine for smaller backups, slow for big ones.
Place the file somewhere findable on the new phone — the Downloads folder is perfect. While you are moving files between phones, the same middleman-drive trick works for other apps’ data too; our guide to transferring Telegram downloaded files from an old phone manually uses the same approach for Telegram’s media folders.
Step 3: Restore During First Setup — Order Matters
- Install Signal on the new phone but do not rush the setup. The very first screen offers a Restore backup option (sometimes under a menu or “Restore from backup” link beneath the Continue button).
- Choose Restore backup and select the file you copied.
- Enter the 30-digit passphrase exactly. The spaces are cosmetic; the digits are what count.
- Wait for the restore to complete. Do not interrupt it — a partially restored database can force you to start over.
- Now register your phone number. The SIM or eSIM for your number should be active in the new phone (or able to receive the verification code) at this point.
- Open your chats and scroll. Check old conversations, group memberships and media. Note that linked devices and some settings need to be set up fresh — that is normal.
If the Restore Option Does Not Appear
If you blew past the first screen and registered already, Signal created a fresh empty account and the restore doorway closed. The remedy is simple but absolute: uninstall Signal on the new phone, reinstall it, and this time choose Restore backup before registering. Your old phone is unaffected throughout — it remains your source of truth until the new phone is verified, which is exactly why you never wipe the old phone first.
Also know the alternative: Signal offers a direct device-to-device transfer (in the same Chats settings, “Transfer account”) that moves everything over a local connection without a backup file. It is convenient when both phones are in hand — but making the local backup anyway gives you a safety net if the transfer hiccups, and a backup habit worth keeping.
Common Mistakes to Avoid
- Registering on the new phone before restoring. The single most common failure. Restore first, register second — tattoo the order on the process.
- Losing the 30-digit passphrase. Without it, the backup cannot be opened by anyone, including Signal. Store it like a password, because it is one.
- Copying the wrong backup file. Phones accumulate several dated backups. Copy the newest, and check its size roughly matches expectations before the move.
- Wiping or trading in the old phone immediately. Keep it intact until the new phone’s history is open in front of you and verified.
- Assuming disappearing messages restore fully. Messages whose timers already expired are gone by design; the backup preserves what existed when it was made.
Keeping the Habit: Backups After the Move
The move you just performed proves the backup works — keep the machinery running so the next phone change is boring. Turn Signal backups on permanently and let the phone create them on schedule; every few months, copy the newest backup file to a second location (your PC, an encrypted drive), because a backup that lives only on the phone dies with the phone. Store the 30-digit passphrase in a password manager rather than in a note on the phone itself, for the same reason. When you eventually replace this phone, the routine will be muscle memory: fresh backup, passphrase ready, file across, restore before registering.
It is also worth knowing what the backup does not carry: your Signal PIN and registration lock settings are account features you set up fresh, linked devices must be re-linked, and message-request preferences may need a review. None of that touches your history. And if your old phone is being sold, wipe it only after the new phone’s restore is verified — then a factory reset removes your Signal data from it completely, since the history existed nowhere else on Earth except your backup file.
Conclusion
Signal’s local backup respects the app’s core promise — your history exists only where you put it. Create a fresh backup, guard the 30-digit passphrase like a key (because it is one), place the file on the new phone, restore before registering, and verify. Fifteen careful minutes, and years of conversations move house without ever touching a server.
Frequently Asked Questions
I lost my 30-digit passphrase. Can Signal recover my backup?
No. The passphrase is the encryption key and Signal does not have a copy. If the old phone still works, open the backup settings — the passphrase can be viewed there — and note it down. If the old phone is gone too, the backup cannot be opened.
Can I restore a Signal backup on an iPhone?
No. Signal backups are Android-only, and there is no official Android-to-iPhone history transfer for Signal. Moving to iOS means starting Signal fresh there.
How big will my backup file be?
Roughly the size of your Signal media and database combined — from a few hundred megabytes for text-light users to many gigabytes if you exchange lots of photos and videos. Check free space on the new phone before restoring.
Does the backup include group chats?
Yes — conversations, group memberships and media are all in the backup. After restoring you rejoin groups as the same member; no new invites are needed.
Should I use the device-to-device transfer instead?
It works well when both phones are present and healthy. Even so, create the local backup first as insurance: if the direct transfer fails halfway, the file-and-passphrase route remains available.


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