Sigenergy
2001
Software Version Mismatch
Equipment's internal software version does not match. ID1=Software mismatch, ID2=Software/hardware mismatch, ID3=Protocol version mismatch.
Common causes
Incomplete or failed firmware upgradeIncompatible firmware across battery and inverter
What to check
STEP 1
Upgrade system software again via APP
Escalate if
Fault persists after re-upgrade — submit fault feedback via APP > Service > Support > Troubleshooting
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