ESI 3~6K-S1
user manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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The upgrade file folder name is firmwareESI. These three upgrade file names are
ESI_ARM.bin, ESI_DSPM.bin, ESI_DSPS.bin.
Step 1
Insert the USB drive into the computer.
Step 2
SOFARSOLAR will send the upgraded firmware to the users who need to
upgrade. After receiving the file, decompress it and save it in a USB flash drive.
Step 3
Insert the USB disk into the USB/Wifi interface of the machine.
Step 4
Turn on DC switch.
Step 5
6.Software Update
Enter Password
Enter 0715
Software Update(PCS)
Software Update(BMS)
Software Update(PCU)
Step 6
If the following error occurs, upgrade again. If this situation persists for several
times, contact technical support for help.
USB error
DSPM file error
DSPS file error
ARM file error
Upgrading DSPM fail Upgrading DSPS fail
Upgrading ARM fail
Step 7
After the upgrading, turn off the DC switch, wait for the LCD screen to go off,
then restore the WiFi connection, and then turn on the DC switch and AC switch again,
and the inverter will enter the running state. You can view the current software version
in System Info >> Software Version.