BlackBerry tool:

unlock by mep :254 mep supported -(PC-need credits/DONGLE-no credits)
unlock by prd :8475 prd supported -(PC-need credits/DONGLE-no credits)
Readinfo (PC/DONGLE-no credits) -(PC/DONGLE-no credits)
Factory setting reset -(PC/DONGLE-no credits)
Engineering screen code calculator-(PC/DONGLE-no credits)

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