➑️| 3.3 Tutorial for version 1.4 - 2.1

Firmware Version Index

3.3.1 KeyPal firmware upgrade supports EOS/TRON(1.4 to 2.1.04)

3.3.2 KeyPal firmware upgrade supports EOS/TRON(2.1.00 to 2.1.04)

3.3.3 KeyPal firmware upgrade (2.1.04 to 2.1.07)

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