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This happened after a system update to Android 9. The device is working properly but I'm getting "Your device is corrupt. It can't be trusted and may not work properly" with a red triangle warning every time I reboot. Formatting it didn't work. Any suggestions?

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  • That warning is due to dm-verity corruption: source.android.com/security/verifiedboot/…. Did you root your device, unlocked bootloader etc? Nov 7, 2019 at 21:33
  • No, I didn't root my device. Just system update from OnePlus to Oxygen OS 9.0.0.
    – quarkytale
    Nov 8, 2019 at 15:45
  • Then something went wrong during update. Which method did you use to update? Nov 8, 2019 at 16:22
  • I just downgraded my phone to Oxygen OS 4.5.8 and the warning is gone. However, after the downgrade, I did an over the air upgrade from OnePlus to Oxygen OS 9.0.9 and then warning is back again. What does it mean?
    – quarkytale
    Nov 8, 2019 at 17:54
  • Official updates come from OEM, so OP can tell better. Contact customer services. Nov 9, 2019 at 0:09

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