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You wiped the modemst1 partition incorrectly. Fix: Reflash the original Docomo FTF, then re-do the lock-removal FTF without wiping modem partitions. sony sov33 lock remove ftf better
: In the "Wipe" pane, ensure USERDATA and CACHE are checked. This is the step that effectively "removes" the lock by factory resetting the system. Enter Flash Mode : Power off your device completely. : You wiped the modemst1 partition incorrectly