Printed from https://charger-support.com/en/for-manufacturers/checklist/ · Last updated 27 September 2026
Checklist
What I need for an analysis
Not everything is needed for every case. The more of it is available, the faster I get to the root cause.
Device and firmware
- Manufacturer, model and hardware revision
- Firmware version when the failure occurred, earlier versions and update history
- Serial numbers or internal IDs of affected units – pseudonymised if necessary
- Number of affected units, roughly in relation to the installed base
Connectivity
- Connectivity type: LAN, Wi-Fi or cellular
- For cellular: modem or module and its firmware, network, type of SIM card
- Signal quality, if logged
- Times of connection drops, ideally with time zone
Backend and OCPP
- Backend (CSMS): name or type, and version if known
- OCPP version and security profile
- OCPP traces covering the failure period, ideally from both charger and backend
- Relevant configuration keys, for example HeartbeatInterval, WebSocketPingInterval, MeterValueSampleInterval
Failure pattern
- What happens, and what should happen?
- Since when, how often, on which units?
- Any correlation with updates, time of day, locations or load situations?
- Error codes and status messages of the charger
- Actions taken so far and their results
Logs and returns
- Device logs covering the failure period, with some lead time
- Clock synchronisation of the units (NTP) and the time zone used
- Test reports of returned units
Calibration law and meter values (if affected)
- Signed meter values, for example OCMF records
- The corresponding public keys and when they changed
- Results of verification with the transparency software
Confidentiality and data protection
- NDA in place; DPA if personal data is included
- Personal data removed or replaced: names, email addresses, charging card identifiers (for example RFID UIDs or idTags), contract and vehicle identifiers
- Raw data only via the case-specific upload link
Via the pilot form I accept pseudonymised data only. Raw data only after NDA/DPA via a case-specific upload link.