Need to Solve Unknown Baseband, Null IMEI, No SIM recognized issue.

Samsung SM N900A
LRX21V.N900AUCUEOC2
Baseband - Unknown
System Status - Custom
Tried to root with app/pc versions of Kingo and Towel
Tried to flash with Odin (N900AUCUBMI1_OneClickBin)
ALL FAILED!

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