Firmware Upgrade Guide

How to upgrade the firmware on the Sunsynk Connect portal

First, initiate a search for the specific plant requiring a firmware upgrade. In this instance, we are updating the firmware for the 'Tom & Hannah Home' plant.

Figure 1: Search the plant.

Choose 'Equipment' located at the top of the screen.

Figure 2: Choose 'Equipment’.

At this page you will see the current firmware versions along with the inverter size. The first firmware relates to the MCU, while the second, highlighted in a red box, refers to the LCD firmware. The third red box indicates the inverter size. On the right-hand side, locate three black dots. Click on these dots to reveal a dropdown menu.

Figure 3: Current firmware version

In the dropdown below, you'll find the option to select a firmware upgrade. Choose 'Upgrade'

Figure 4: Select Upgrade from drop down menu

After clicking 'Upgrade,' a dialog box will appear, allowing the selection of firmware. Always prioritize upgrading the LCD firmware first, followed by the inverter firmware. The firmware should be upgraded in hexadecimal order, as illustrated below:

Figure 5: Selecting LCD first

Following that, select the appropriate firmware version, as illustrated in the provided image below.

Figure 6: Selecting firmware version

The current firmware is E436. Subsequent versions will follow as:

MCU1 E437

MCU1 E438

MCU1 E439

MCU1 E43A

MCU1 E43B

MCU1 E43C

MCU1 E43D

MCU1 E43E

MCU1 E43F

MCU1 E441

To update the inverter, choose the inverter type, and then select the firmware version, as demonstrated in the figure below:

Figure 7: Selecting MCU version

Once you have selected the firmware version, click ‘confirm’ as shown in the figure below,

Figure 8: Confirm

To check the progress of update, click of the arrow as shown in the figure 9,

Figure 9: Progress

Following your selections, you can track the update progress.