NUU G3 frp mt 6757

Operation : Identify [ v2.06 ]

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 : MediaTek PreLoader USB VCOM (Android) (COM222)
MODE : PRELOADER PORT
PORT : 222
Waiting BOOT ack ...
PRELOADER : ACK confirmed!
BROM : Init BROM
BROM init passed!
CHIP : MT6757 , SBID : 0x8A00 , HWVR : 0xCB00 , SWVR : 0x0001
TYPE : MODERN RAPHAEL
BROM : SecLevel : 0x00000000
BROM : SecMode : PLAIN [+PRL]
BROM : PRELOADER PORT
MODE : 0_base : BASE_v1836 | Manual : Disabled
AGENT : Look for suitable BootChain in DA ...
AGENT : MTK_AllInOne_DA.bin
AGENT : Found MT6757
AGENT : MTK_DOWNLOAD_AGENT
BROM : Sending 1st DA ...

BROM : 0x00002001 : DA SEND ERROR!
ERROR : SECURE BOOT : MISMATCH BOOT SIGNATURE!
INFO : PRELOADER Level : Connect device in BROM mode!

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

Reconnect Power/Cable!



any suggest?