This is the official recovery mode. In the official recovery mode, you can only flash the official flash package, because the official rec mode has signature verification. If you flash a third-party package signature, the verification will fail. Flash in.

If you want to flash a third-party package, you need to flash a third-party recovery mode first, because the third-party rec mode generally does not have signature verification. After flashing, enter the rec and perform double clear and then flash enter.