Oppo F5 CPH-1723 Format no support plz help

Oppo F5 CPH-1723 Format no support plz help

1. Make sure device is powered off. Power off, if need. Wait 20 seconds after
2. Insert USB cable in phone
Waiting for device connection ...

PTFN : OPPO PreLoader USB VCOM (Android) (COM45)
MODE : PRELOADER PORT
PORT : 45
Waiting BOOT ack ...
PRELOADER : ACK confirmed!
BROM : Init BROM
BROM init passed!
CHIP : MT6763 , SBID : 0x8A00 , HWVR : 0xCA01 , SWVR : 0x0001
TYPE : MODERN RAPHAEL
BROM : SecLevel : 0x00000005
BROM : SecMode : SBC+SDA
BROM : PRELOADER PORT
MODE : Oppo : F5 | Manual : Disabled
AGENT : Look for suitable BootChain in DA ...
AGENT : DA_PL_CRYPTO.bin
AGENT : Found MT6763
AGENT : MTK_DOWNLOAD_AGENT
BROM : Sending 1st DA ...

BROM : 0x00002001 : DA SEND ERROR!
ERROR : SECURE BOOT : MISMATCH BOOT SIGNATURE!
INFO : PRELOADER Level : CORRECT DA required: PL/PL_CRYPTO/SWSEC

Error : Fail to init protocol!
Remove battery, cable. Check cable/connection/driver! Check SW hint! Repeat operation!

Reconnect Power/Cable!

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