Oppo F7 Anto Rollback Error SPFT

[levsin841]

I accidentally flashed odm partition with tee.img while flashing, since then device is in bootloop, it can neither get into recovery nor fastboot, The device has color os 7.1. However, I have an old android 8 old fiirmware. When I try to flash old firmware, I get anti rollback error. I have selected download mode in spft. Should I select format and download to flash(downgrade) older rom? What is the proper way to downgrade without error?

[maxpayne]

I accidentally flashed odm partition with tee.img while flashing, since then device is in bootloop, it can neither get into recovery nor fastboot, The device has color os 7.1. However, I have an old android 8 old fiirmware. When I try to flash old firmware, I get anti rollback error. I have selected download mode in spft. Should I select format and download to flash(downgrade) older rom? What is the proper way to downgrade without error?

Anti-rollback means you should be flashing the same version or higher else you risk a brick