Can't update winc1500 wifi shield

I use Arduino Mega 2560 and winc1500 wifi shield model B.

I tried to use the Firmware Updater to update the wifi shield to 19.5.4, but it returned "Error during verify at address 164864" in the progress "Verifying"

Anyone knows how to solve this?

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I followed this tutorial step by step but it doesn’t mention this error

puffy00:
I followed this tutorial step by step but it doesn't mention this error

Post on their forum and see if they have a solution.