bl31.bin_0:CheckImage Fail!

[aciddust]

why this happened? wanna know about reason

How to solve this problem. please let me know

DDR Version V1.02 20190312
LPDDR3
933MHz
BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=32 Size=2048MB
out
Returning to boot ROM...
Boot1 Release Time: May 21 2019 20:12:00, version: 1.03
ChipType = 0x14, 167
SecureInit ret = 0, SecureMode = 0
atags_set_bootdev: ret:(0)
NPU UsbBoot...
UsbHook ...10504
powerOn 12727
USBParse: cmd:0x18, sub_code:0xaa, len:56
MAGIC: 4d505352
0 Type:2, Addr:0x8000000
UbootAddr:0x8000000
1 Type:1, Addr:0x8100000
TrustAddr:0x8100000
2 Type:4, Addr:0x4000000
BootAddr:0x4000000
atags_set_boot_addr: ret:(0)
USBParse:ret:0
USBParse: cmd:0x19, sub_code:0xaa, len:0
LoadTrust Addr:0x40800
No find bl30.bin
HashBits:256, HashData:
e40e4f06
cfc9e973
0d6d7581
62d8282f
71901b74
2a91cd9b
ca4f32db
0a61ec94
CalcHash:
f52d0bac
b97bfd55
7723b2af
253cd9fd
7dbf636d
93a8600c
2929fe16
6a6dd433
bl31.bin_0:CheckImage Fail!
LoadTrustBL error:-1
USBParse:ret:-1