GSM-Forum - C555 flashing error

After flash process got error, but phone working Ok
What means this error?:
Code:
 ====  Wait for phone...
 

Phone found! [ 83 ]

Port Opened

Sync...

InitBoot Done [ 0x81 ] , Ver : SPRD3

Sync...

Sending FDL

[Info] : If SW freeze here more, than 15 seconds - remove cable

FDL Ready!

Boot Ver : SC773x Android 5.x eMMC v1.0 Inf 

Sending FLASH FDL

FLASH FDL Ready!

Boot Ok!
 

FlashMode Set : Ok!
 

PMTManager : Load 0x17 records

PMTManager : PMT Update Ok!

Flashing now
 

Update BootCode : u-boot-spl-16k.bin

Write Data ... 

Write Data Ok!
 

Update BootCode : u-boot.bin

Erase block ... 

Block erase Ok!

Write Data ... 

Write Data Ok!
 

Write FSImage : prodnv.img

Write Data ... 

Write Data Ok!
 

Write CodeData : sc7731g_CP0_modem.bin

Write Data ... 

Write Data Ok!
 

Write CodeData : DSP_DM_Gx.bin

Write Data ... 

Write Data Ok!
 

Erase Block : RuntimeData

Erase block ... 

Block erase Ok!
 

Write CodeData : sc8830g_modem_CP2_WCN_14D_W15.31.1_Release.bin

Write Data ... 

Write Data Ok!
 

Erase Block : RuntimeData

Erase block ... 

Block erase Ok!
 

Write CodeData : logo_540x960.bin

Write Data ... 

Write Data Ok!
 

Write CodeData : boot.img

Write Data ... 

Write Data Ok!
 

Write FSImage : system.img

Write Data ... 

Write Data Ok!
 

Write FSImage : cache.img

Write Data ... 

FSImage : Make and Flush SPImage

Write Data Ok!
 

Write CodeData : recovery.img

Write Data ... 

Write Data Ok!
 

Process : Flush

[FlashProc] : Error with code 0x017E00800000FF7F7E
 

Elapsed: 00:07:45
 

Reconnect Power/Cable!