01-04-2021 12:26 PM
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  1. Android Central Question's Avatar
    Android Central Question
    Hello
    My Samsung Galaxy Note 5 was recently FRP locked. I removed the lock by flashing the firmware through Odin. I am not a professional i just did that by following YouTube videos.
    Now that the phone is working but once the phone boots up a message is displayed
    "Security Error
    This phone has been flashed with unauthorized software & is locked. Call your mobile operator for additional support."

    The problem now is that the sim card is not working although it was working perfectly before flashing.
    I am using a T-Mobile(SM-N920T) Samsung Note 5 and i used the latest firmware from Sam mobile for flashing my phone.
    Can anybody please help me what to do now?
    I am stuck right now and don't Know what to do. I want my sim card working.
    Thank you Your help would be appreciated.
    01-02-2021 05:27 AM
  2. belodion's Avatar
    belodion
    Co-Ambassador Team Lead
    Have you as instructed called your mobile operator for additional support? https://forums.androidcentral.com/as...community.html
    J Dubbs and Laura Knotek like this.
    01-02-2021 06:33 AM
  3. mustang7757's Avatar
    mustang7757
    Trusted Member
    Ambassador
    Moderator
    Why did you remove the FRP ? You don't know your account information?
    01-02-2021 10:22 AM
  4. Abdulmoiz7's Avatar
    Abdulmoiz7
    Thanks alot for the reply
    The FRP lock was not letting me enter the phone. Once the phone booted up it said custom binary locked by FRP lock and than it turned off.
    I have my google account information with me and i even don't know how that lock just got enabled. I would appreciate if there is some way through which i could solve it on my own without taking it anywhere.
    01-03-2021 04:53 AM
  5. belodion's Avatar
    belodion
    Co-Ambassador Team Lead
    Did you buy it new, from a reputable seller?
    01-03-2021 11:11 AM
  7. mustang7757's Avatar
    mustang7757
    Trusted Member
    Ambassador
    Moderator
    Originally Posted by Abdulmoiz7
    Thanks alot for the reply
    The FRP lock was not letting me enter the phone. Once the phone booted up it said custom binary locked by FRP lock and than it turned off.
    I have my google account information with me and i even don't know how that lock just got enabled. I would appreciate if there is some way through which i could solve it on my own without taking it anywhere.
    What guide did you use to flash ? Once you put your account information in the phone it's FRP locked to it to prevent theft .
    01-03-2021 11:18 AM
  8. B. Diddy's Avatar
    B. Diddy
    Senior Ambassador
    Has this always been your phone?
    01-04-2021 12:26 PM
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