Please help explain this error to me
 

I have itel 1502 spd 7730 at first phone stuck in boot loop then now phone not on and if i read with cm2 spd this is log
Operation : Check/Read Info [ v1.15 ]

1. Remove battery. Insert battery back
2. Press and hold 'VolumeUp' and 'VolumeDown' keys
3. Insert cable

==== Wait for phone...

Phone found! [ 62 ]
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 : SC7730/7731 eMMC Loader v1.1 Inf
Sending FLASH FDL
FLASH FDL Ready!
Boot Ok!

Unknown structure detected! Check correct model selection!

Elapsed: 00:01:14

Reconnect Power/Cable!

please what does the error mean

Please I need help, brothers help me

Sent from my Y635-L01 using Tapatalk

Hello,
Try with Alternative LDR Mode or select SLDR. If still fails then need to select similar pac file.

Br.
Infinity Box Support Team.

Or try use the spd tool I belive the file was not read by Infinity-Box