Directly rebooting into recovery mode without root access is generally restricted by Android's security model. However, you can achieve this through specific non-root methods or apps that utilize advanced permissions like ADB or Accessibility Services. Non-Root Recovery Reboot Methods
Disclaimer: Always exercise caution when using 3rd-party APKs not found on the Google Play Store, as they can pose security risks. How to use Recovery Mode on Android 1 Jun 2023 —
Using third-party tools to access recovery does not void your warranty by itself. However, if you use recovery to flash unofficial software, that will.
2. The app says "Permission Denied" or "Root Required."
Limitations
Recovery Reboot APK No Root Exclusive: A Game-Changer for Android Users