Supersu binary update fail on Asus zenfone C (Z007) - Android Q&A, Help & Troubleshooting

Hy guys, I'm a newbie here. I have a problem with updating superSU binary on my asus zenfone C (z007)
I have rooted my phone before, but recently the binary was outdated, I've tried updating it via CWM. Everything work just fine, but when I'm flashing the supersu binary 2.82 via adb, an error occur, it say:
E: failed to verify whole-file signature
Installation aborted
I've googling for days and all I found is many people said that the binary file is corrupted, I've tried re download a new binary file, and it's not corrupted. And I retry to flash it via adb, and again, the problem still the same.
Any suggestion for me? I would be very happy if anyone could help me to solve this Thnx!

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