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PDA/AP Version T550XXU1CQJ6
CSC Version T550OXE1CQL1
MODEM/CP Version T550XXU1CQJ6
Region SER - Russia
Build Date 2017-10-30
OS Version 7.1.1
At this page you can find direct download link of firmware version T550XXU1CQJ6
T550OXE1CQL1for the device Samsung GALAXY Tab A, model SM-T550, for free.