How can I move my ID to a new device?

When you switch your device or reset it to factory settings, you can transfer your Threema ID and use the app as usual. To transfer your ID, you need a Threema Safe backup (recommended) or an ID export. A data backup contains your ID, but it can only be restored on the same operating system it was created on (i.e., you can’t restore a data backup that was created on Android on iOS, and vice versa). For this reason, it’s recommended to create a Threema Safe backup or an ID export. An ID export only contains the ID; it doesn’t contain chats, group memberships, media files or your contacts' green verification levels. Threema Safe backups, on the other hand, also contain contacts, groups, and privacy settings. You can also export chats. If you switch devices, it’s advisable to remove your Threema ID from the old device once you have restored the ID on your new device.

1. Export your ID

Android

  • To create an ID export, navigate to “My Profile”, and select “Advanced options”
  • Tap on “Export ID”, and choose a password. Without this password, you will not be able to restore your ID.
  • Your ID data (consisting of your private key) will be encrypted and shown to you as a text string and QR code.
  • Save the ID export in a secure location. You can also send the information to yourself by email.

iOS

  • To create an ID export, tap on “My ID” in the app, select to “ID export”, and choose a password. Without this password, you will not be able to restore your ID.
  • Your ID data (consisting of your private key) will be encrypted and shown to you as a text string and QR code.
  • Save the ID export in a secure location. You can, for example, send it to your own email address.
  • You can also include your ID export automatically in the next iTunes backup.

Windows Phone

  • To create an ID export, navigate to “Settings” and select “Backup”.
  • Save your ID export as text code or as QR code.
  • Tap “Backup your Threema ID”, and choose a password. Without this password, you will not be able to restore your ID.
  • Your ID data (i.e., your private key) is now encrypted and displayed as text string or QR code.

2. Restore ID from ID export

  • If Threema is already set up with another ID which you would like to replace, remove the current ID first:
    • Android: In the sidebar, tap on your ID, then select “Delete ID”.
    • iOS: In the tab bar, tap on “My ID”, then select “Delete ID”.
    • Windows Phone: In the “My ID” tab, select “Delete ID”.
    Please note: The ID will be deleted only on the current device; if it is set up on another device, it will not be deleted there. Also, the deleted ID can still be restored using a backup or an ID export. After deleting the ID, you can restore an ID as you would when starting Threema for the first time (see below).
  • Android
    • When starting Threema for the first time, select “Restore from backup”, tap on “Other restore options”, and select “Exported ID”.
  • iOS
    • When starting Threema for the first time, tap “Restore from backup” (and select if you want to keep or delete local data), and then tap “Exported ID”. Finally, scan the QR code of your ID export or enter the string manually.

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