SM-N900 magic error imei null

Hi guys.. my sm-n900 lost imei.. IMEI null/null i tried to write cert file but i get this:



Model: SM-N900

Android version: 4.4.2

Product code: Unknown

Phone version: Unknown

PDA version: N900XXUENG3

CSC version: N900SERENG1

IMEI: Unknown

Phone S/N: Unknown

Checking Super user right... true

Reading nv data... OK

Checking magic... not found

Done with Samsung Tool v.18.2



pleasae help me.. i didnt make EFS back up.. i need EFS back up for sm n900 please help me....:(

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