I have F11 CPH1911 hang on logo .. reset done but still same .. searching firmware on support but not found.. here log
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 USB Port_V1633 (COM30)
MODE : BOOTROM
PORT : 30
Waiting BOOT ack ...
BROM : Skip ACK verify
BROM : Init BROM
BROM init passed!
CHIP : MT6771 , SBID : 0x8A00 , HWVR : 0xCA00 , SWVR : 0x0000
CODE : Sylvia
TYPE : MODERN [RAPHAEL]
BROM : MEID : 3BAE3046D47533C7FBEF137B28DFA1AC
BROM : SecLevel : 0x000000E5
BROM : SecMode : SBC+SDA+EXT
BROM : BROM|BL : 0x05|0xFE
BROM : BOOTROM
BROM : SOCID : E97865DDEFE5F8B81A6FB0820AD581F1F7BFF238774641546A39E61DDFF1D503
BROM : SLA : Local Auth
BROM : SLA : Auth Started!
BROM : SLA : Auth Passed!
BROM : SLA : 0x0000001F
BROM : PreBoot stage #1
BROM : PreBoot stage #2
AGENT : 0_base : BASE_v2044 | Manual : Disabled
AGENT : Look for suitable BootChain in DA ...
AGENT : MTK_AllInOne_DA.bin
AGENT : Found MT6771
AGENT : MTK_DOWNLOAD_AGENT
BROM : Sending 1st DA ...
BROM : DA sent
BROM :Transfer control to DA ...
DA : AGENT started!
DA : SYNC
DA : MODE : BROM
DA : EXT_RAM NOT initialized!
EMI : DEV : FireFly
EMI : SRC : preloader_oppo6771.bin
EMI : CNT : 0014
EMI : Init EMI from INTERNAL DB
EMI : EXT_RAM CFG Passed!
DA : BOOT to 2nd DA ...
DA : 2ND stage confirmed!
DA : SYNC with DA passed!
DA : Receiving HW info
SRAM: 0x00039000 [ 228.00 KB ]
DRAM: 0x180000000 [ 6.00 GB ]
EMMC: CID : 150100335636434D4202E3DC6A3A562B
EMMC: VEN : SAMSUNG : OEM : 0 : ID : 335636434D42
EMMC: VEN : SAMSUNG : 3V6CMB
EMMC: SNN : 3822873146 ( 0xE3DC6A3A) , MF : 5/2019
EMMC:
BOOT1 : 0x00400000 [ 4.00 MB ]
BOOT2 : 0x00400000 [ 4.00 MB ]
RPMB : 0x01000000 [ 16.00 MB ]
USER : 0x1D1EC00000 [ 116.48 GB ]
CHIP : MT6771 , SBID : 0x8A00 , HWVR : 0xCA00 , SWVR : 0x0000 , EVOL : 0x0000
RNID : BF3C6B7B755FB880BB38F9381D5E902A
DA : USB : HIGH-SPEED
Boot done!
Patch Level : QP1A.190711.020
Display ID : QP1A.190711.020 release-keys
Ver. CodeName : REL
Ver. Release : 10
Sec. Patch : 2020-09-05
Build Time : 18.09.2020
Product Info : oppo6771
USERDATA : FILESYSTEM : EXT4 with FBE ( File-Base Encryption )
NVRAM : OPPO6771_18531_MDBIN_PCB01_MT6771_S00.MOLY_LR12A_R2_TC16_Q_P70_PR3_SP_V1_P33
NVRAM : 0xC2193A16
NVRAM : State : Ok!
INFO : WiFi MAC : 2479F3991BA7
INFO : BlTh MAC : 2479F3991BA6
STORAGE : Life Status : eMMC : OK!
STORAGE : OTP Status : LOCKED!
Done!
Elapsed: 00:00:47