How to recover the text message without backup on oppo mobile phone?

Use third-party SMS recovery tools, view from cloud services, etc.

1. Use third-party SMS recovery tools: Search and install some SMS recovery tools in the app store, such as Extreme Data Recovery, Android Recovery Expert, Dr.Fone or CoolmusterAndroidSMSRecovery. These tools can scan the residual data in the mobile phone and try to recover the deleted text messages. Specific problems may vary from tool to tool, but usually involve opening the tool, connecting the mobile phone, scanning and restoring according to the tool tips.

2. View from the cloud service: If the cloud service function of OPPO was turned on before and the SMS was synchronized, you can view the deleted SMS through the cloud service. However, please note that the cloud service is mainly used to view the backed-up short messages, rather than directly restore the deleted short messages.