Signal Account Registration Troubleshooting
For your privacy, your messages are only stored on your devices. Signal does not have a copy of your conversation history. New installations of Signal do not restore your previous message history. If you switch devices, you can transfer your messages from the old one.
Don’t receive the confirmation code?
Confirm that you are within range of your mobile network and can receive text messages.
Confirm that you can receive a phone call at this number.
Verify that you have entered your phone number correctly.
Confirm that you have not blocked messages from unknown senders.
Enter your number in international format without the leading zero.
To receive the verification code by text :
iOS users: Go to iOS Settings, Phone and disable Silent Stranger Calls.
Google-Fi users can change the underlying provider. There are shortcuts on the calling keyboard that you can use to change the provider that handles your Fi connection.
Return to automatic mode: ##fiauto##
Confirm that you are using the most recent version of Signal.
Enable all permissions for Signal via your Android phone settings. Even if they are already enabled, please turn them off and back on, then restart your phone.
Update the Google Play app on your phone.
Disable your VPN app or make sure it allows *.whispersystems.org, *.signal.org and TCP port 443.
Too many attempts? Please wait a while (1 hour, 1 day, etc.) before trying to register again.
Make sure you have room left on the (small) data partition of your phone.
Check the optimization lists for each phone and make sure the following conditions are met :
Signal is not in the list of applications that are automatically optimized when running in the background.
Signal is included in the list of applications that are allowed to launch themselves.
On Huawei phones, special steps activate Signal :
– Settings > Apps > Apps > Signal > Stack Usage Details > Launch App > Set to Manually Manage and enable these options : Automatic launch, Secondary launch and Run in background.
Signal and Google Play services are activated by following these special steps on Xiaomi phones :
– Security > Permissions > Autostart > Allow
– >Settings > All > Startup Manager > Allow.
Make sure you are using the most recent version of Signal.
Disable your VPN or data monitoring app, or make sure it allows *.whispersystems.org, *.signal.org and TCP port 443.
Check your email app’s Inbox for messages from unknown senders or disable this feature in iOS Settings > Messages > Filter for unknown senders.
Enable all permissions available to you via iPhone Settings > Signal.
Sign up too often? Please wait a while (1 hour, 1 day, etc.) before trying to register again.
Signal Desktop must be linked to Signal for Android or Signal for iOS for use.