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How to do firmware upgrade

Go to Upgrade - Basic to do web upgrade.
Upgrade: Choose firmware from the PC, and then click “Submit” to start update.

Web upgrade
Refer to Akuvox Forum for the latest version.

“.rom” format firmware is for E21/ R20/ R23/ R26/ R27 and “.zip” format firmware is for R29.
Remember to clean the browser cache first after the upgrading, or else it may occur blank interfaces.