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Troubleshooting and Maintenance
===Upgrade Selection===
>ARM
DSP
====Upgrade (ARM)====
Cancel
>OK
d. Select and confirm the firmware version, and then tap the Enter key to start
updating. ARM update takes about 20 seconds, and DSP update takes about 2
minutes.
====Upgrade (ARM)====
>XXX.XXXXX.XX_HYB_3P_
ARM_V001.07_0606.usb
====Upgrade (ARM)====
Upgrading......25%
===Upgrade Selection===
ARM
>DSP
====Upgrade (ARM)====
Cancel
>OK
====Upgrade (DSP)====
>XXX.XXXXX.XX_HYB_3P_
DSP_V001.07_0606.usb
====Upgrade (DSP)====
DSP Erasing
====Upgrade (DSP)====
Upgrading......25%
e. After the upgrade is completed, the LCD screen displays Upgrade Successful. If
the upgrades fail, the LCD screen displays Upgrade failed.
====Upgrade (DSP)====
Upgrade Successful
f. Unplug the USB drive and press ESC to return to the main interface.
CAUTION!
• If the ARM firmware upgrade fails or stops, do not unplug the USB drive. Power off
the inverter, restart it, and then repeat the above upgrade steps.
CAUTION!
If the DSP firmware upgrade fails or stops, perform operations below to troubleshoot:
• Check if the DC switch is turned off. If it is off, turn it on.
• (Recommneded) If the DC switch is already on, check if the battery and PV
parameters in Menu>System Status meets the upgrade requirements (The PV or
battery input voltage should be larger than 180 V, or the battery SOC be higher than
20%).
• Alternatively, select Menu > Mode Select > Manual > Forced Charge to charge the
battery. This process can help wake up the battery for DSP upgrade.
NOTICE!
• If the LCD screen lags or freezes after the upgrade, turn off the DC switch, and then
restart the inverter. Check if the inverter returns to normal. If not, contact us.
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