

Security > Permissions > Autostart > Allow Signal and Google Play services are enabled through specific steps for Xiaomi phones:.Settings > Apps > Apps > Signal > Power Usage Details > App Launch > Set to Manage Manually > Enable Auto-Launch, Secondary Launch & Run in Background

Signal is enabled through specific steps for Huawei phones:.Signal is included in the list of apps that are allowed to start themselves.Signal is excluded from the list of automatically optimized apps when in the background.Check phone-specific optimization lists and make sure that the following conditions are true:.You can free memory by uninstalling apps that you no longer use. This is easy to confuse on older devices. Check that you have free space on the (small) data partition of your phone, not the (large) SD card.Too many attempts? Wait some time (1 hour, 1 day, etc.) before trying to register again.Disable your VPN app or check that it allows *., *. and TCP port 443.
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Enter the full international phone number and omit any leading zeroes.Confirm that you did not block messages from from unknown senders.Check that you have entered your phone number correctly.Confirm you can receive a phone call to the number.Confirm that you are within range of your mobile network and can receive SMS messages.If you have your old device, use these steps to transfer message history to your new phone. New installs of Signal do not restore your previous message history. Signal does not have a copy of your conversation history. For your privacy, messages are only stored on your devices.
