huawei phone u7510s unlock problem

[zeemar]

selection :
manufacturer - Huawei phones
model - Auto detect (recommended)

Found Phone : 19
Model : Huawei U7510/U7517/U7519
IMEI : 35xxxxxxxxxxxxx
Firmware : APP-U7510-sV100R001ESPC86B548-SEC-DEBUG-NOLOG

================================================== =================

Unlocking, please wait ...

Preparing Boot Download mode ... OK
Preparing bootloader ... OK
Waiting modem/phone to be ready ...

unlock failed !

(error code 40)


plz help, it's urgent...

BR.

[Vincentas]

Which dc-unlocker version you are using? Be sure you use the latest.

[zeemar]

Which dc-unlocker version you are using? Be sure you use the latest.

yeah, i m using the last 1, DC-Unlocker 2 Client 1.00.0509.

any other solution...?

BR.

[Vincentas]

Maybe something wrong with phone drivers. Do you see any devices for that phone in device manager after error? Do you see any phone driver?