please tell me how,im a beginner,can you make me a procedure please . . .
1.: Go to the folder where Flashtool was installed
2.: Open the folder named "custom"
3.: Open the folder named "mydevices" (if it exists, in my case Flashtool version 0.9.18.4)
4.: Right button, New, Folder. Name the folder with your device code.
5.: Open the folder created previously
6.: Right button, New, Text Document. Name the text document as ulcode
7.: Open the text document created previously
8.: Paste your unlock code and save
9.: Open Flashtools and try the BLU option again.
obs 1: the step #3 I think it depends on your Flashtool version, because it wasn't mentioned at the solution
obs 2: at the step #4 is mentioned your device code. your device code is showed in the log when you click the button BLU, at the "Current device", after your device model.
Search a line like:
09/045/2015 23:45:08 - INFO - Current device : C2104 - AB100C2DE3 - 1272-4136_R5B - 1269-5420_15.3.A.1.17 - WORLD-a_15.3.A.1.17
in this case, the device code is AB100C2DE3 and this should be the new folder name (step 4)