Sofar solar HYD 10K-20KTL-3PH User Manual page 52

Step 4 Insert the usb flash drive into the USB/Wifi interface.
Step 5 Then turn on DC switch.
Step 6
6.Software Update
Step 7 If the following errors occur, please upgrade again.If this continues
many times, contact technical support for help.
USB Fault
ARM File Error
Update ARM Fail
Step 8 After the update is completed,turn off the DC breaker, wait for the
LCD screen extinguish, then restore the WiFi connection and then turn on the DC
breaker and AC breaker again,the inverter will enters the running state. User can
check the current software version in Systemlnfo>>SoftVersion.
HYD 10-20KTL-3PH
OK Input password
MDSP File Error
Update DSP1 Fail
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User manual
OK Input 0715
Start Update
Updating DSP1
Updating DSP2
Updating ARM
SDSP File Error
Update DSP2 Fail