Send device logs from Salesforce for Android and iOS to Salesforce Support

Activate Lightning Logging :

1. Open the Salesforce Mobile App.
2. Tap the Menu icon on the lower right side of the app.
3. Tap your profile photo on the upper left.
4. Tap Settings.
5. Tap Advanced.(On iOS, tap Enable Lightning Logging. On Android, continue to Step 6.)
6. Tap Lightning Settings.
7. Tap the Lighting Event Logging checkbox.

Send Event logs after your reproduce the issue :

1. Open the Salesforce Mobile App.
2. Tap the Menu icon on the lower right side of the app.
3. Tap your profile photo on the upper left.
4. Tap Settings.
5. Tap Advanced.
6. Tap Send Event Logs.
7. In the CC/BCC field, type in the email address of the Salesforce Support Engineer to whom you will send the email.

For Video instructions, please see Sending Debug logs from the Salesforce Mobile App.