GSM-Forum - Lenovo A1000 unlock, confused !

hi all,
i used to unlock this phone by simple unlock sp botton with cm2spd.

but this is the 2nd one this week, that i can't unlock, so my only solution to unlock them was to write another nv that i backuped from an unlocked phone.

software said that they are already unlocked and nothing to do.

Code:

========================= Start ========================= 

                 13/05/2017 / 14:32:23

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Card found: S/N : xxxxxxxx , v0135

Chinese Miracle II  [SPD module] v 1.25
 

Set mode to : SP [SC773x] eMMC [Generic]
 

Set mode to : [AltLDR] SP [SC773x] eMMC [Generic]
 

Start  at : [13/05/2017 / 14:33:02]

Operation : SP Unlock [ v1.25 ]

Mode : DirectUnlock
 

1. Remove battery. Insert battery back

2. Press and hold 'VolumeUp' and 'VolumeDown' keys

3. Insert cable
 

 ====  Wait for phone...
 

Phone found! [ 25 ]

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 eMMC v2.0 Loader Infinity 

Sending FLASH FDL

FLASH FDL Ready!

Boot Ok!
 

Detected eMMC Flash , Structure detect Ok!
 

Checking Structure ... 

SimLock state : Not Locked!

Nothing to do!
 

Elapsed: 00:00:18

why cmd2spd don't unlock this phone like it did before ? is there a bug in it ?

br