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Professional tools like UnlockTool or Chimera are updated weekly. If a free tool can't do it, these server-based platforms usually can—though they require a subscription. The Bottom Line
Samsung has upgraded its bootloader security levels (Binary/Bit). The exploits Hagard used to force commands through Download Mode no longer work on higher binary versions.
Here is everything you need to know about why it happened and what you can do now. Why "FRP Hijacker" Was a Legend
If you try using FRP Hijacker on a device with a , you will likely encounter errors like "Waiting for device" or "Operation Failed." This is due to several layers of updated security: