Notice When updating the security certificate of the inverter through the APP,

Please don’t initialize the inverter setting.

(1) Install TestFlight APP from https://testflight.apple.com/join/hrHJPylR

(2) Open APP

(3) Start CA Update !!Please Turn Off the 4G moblie data before the update.

Step 1：

Please click “Select target inverter” button.

Step 2：

Please select the wireless network of the inverter.

Step 3：

Please click the “Start upgrade” button to update the certificate.

Step 4：

Successfully updated the certificate.

(4) Install Original MyDeltaSolar APP From APP Store after all updates completed.