ST18i cant imei repair security code: 12w15

hi all,



i cant imei repair but gives error



Platform: SE Qualcomm

Selected model: ST18i

Please, reconnect battery, attach testpoint and connect USB cable...OK

Sending preloader...OK

Please, disconnect testpoint.

Waiting for preloader...

Warning! Loader executing failed. Trying to repeat...

Sending preloader...

Warning! Loader sending failed. Trying to repeat...

Sending preloader...OK

Waiting for preloader...

Warning! Loader executing failed. Trying to repeat...

Sending preloader...

Warning! Loader sending failed. Trying to repeat...

Sending preloader...

Warning! Loader sending failed. Trying to repeat...

Sending preloader...

Warning! Loader sending failed. Trying to repeat...

Preloader start failed!





ps:security :12w15

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