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Pico errors

This page explains the known Pico errors.

RFID is not recognized.​

Meaning:

  • When the RFID is scanned, neither the QR code nor the RFID logo is displayed.

Possible causes:

  • The RFID card is defective

  • The Pico has an error

Action:

  • Restart the Pico. If the restart solved the problem, we would be grateful for an email to support@smart-me.com. Please state the date of the incident and the serial number of the Pico.

  • Try with a new RFID card

Reduced charging power​

If the Pico delivers less power than it should, a phase may not be connected correctly or a fuse may have tripped. By clicking "Normal" (Normal), you can view the voltages and currents, similar to the electricity meters.

Black screen (no display)​

Meaning:

  • The Pico screen shows nothing.

Possible causes:

  • The Pico has no power

  • The RCD has tripped

  • The Pico has an error in its local software

Action:

  • If the Pico is offline

    • Step 1: Disconnect the power and switch it back on.

    • Step 2: Check whether the application version is 1.xx (Check hardware version). If so, fill in the RMA with the error description: Black screen with application version 1.xx

    • Step 3: If this does not help, contact support.

  • If the Pico is online, it can be restarted via the smart-me portal. (Select the Pico / gear icon at the top right / Advanced actions (Erweiterte Aktionen) / Restart (Neustart))

  • If the RCD trips, it may be an isolated incident. If it happens more often, please contact us. Except with the "IONIQ 5" and "Zoé": in isolated cases, these cars trip the RCD at the end of the charging session, and as a manufacturer of charging stations, we cannot change this.

Pico errors – Figure 1

Car is plugged in and the charging station does not respond​

When a car is plugged in, the following should normally happen with

  • Authentication None

    • The standby screen disappears and a sequence with a charging start appears

  • Authentication eCarUp Backend

    • The screen with "Auth RFID App" appears.

If this is not the case, please proceed as follows

  • On the car, check whether the cable is plugged in correctly.

  • On the Pico, make sure that the cable is pushed in all the way.

If it still does not respond, the station operator must check whether a cable is permanently attached to the station.

  • If this is the case, please make sure that the option "Cable always locked" (Kabel immer fest verriegelt) is activated in the smart-me portal.

  • If this is not the case, please do so.

Warn RDC​

Cable or car (usually)

Meaning:

  • Problem with the RDC sensor (residual current device). An RCD is a personal protection device in the electrical installation.

Possible causes:

  • A damp charging cable that is permanently connected.

  • A charging cable that froze overnight and thawed again.

  • A defect in the cable or car. This can be tested by having another car charge at the station or by charging the car that causes the error at another Pico.

  • A defect in the Pico electronics, e.g. water damage.

Action:

  • Once the error has been triggered, the station must be restarted to reset the error.

Pico errors – Figure 2

Cable Lock Error​

Meaning:

  • This error occurs when the cable cannot be locked (e.g. if the plug is not inserted correctly).

Action:

  • Restart the Pico once, either via the cloud or locally. This recalibrates the sensor for the cable lock.

  • In most cases, it is also sufficient to insert the cable properly (with some force) and try again.

Display in the portal

  • Cable lock failed (Kabelverriegelung fehlgeschlagen)

Pico errors – Figure 3

Pico errors – Figure 4

Error 1​

Meaning:

  • No WiFi module was found

Action:

  • If a restart does not bring the desired result, an RMA must be filled in. Error description: Error 1

Pico errors – Figure 5

Error 2​

Meaning:

  • Internal communication error

Action:

  • If a restart does not bring the desired result, an RMA must be filled in. Error description: Error 2

Pico errors – Figure 6

Error 3​

Meaning:

  • An error with the MID electricity measuring device

Action:

  • If a restart does not bring the desired result, an RMA must be filled in. Error description: Error 3

Pico errors – Figure 7

Error 4​

Meaning:

  • The RCD test on the Pico failed.

Action:

  • See WARN RDC

Pico errors – Figure 8

P-Limit​

Meaning:

  • Voltage too low <200V

  • Load shedding active: power limited

Pico errors – Figure 9

Diode Error​

Possible causes:

  • The charging cable is defective

Action:

  • Replace / check the charging cable

  • No action is required on the Pico. It can be used normally again after 30 seconds.

  • Check whether at least version 0.0.42 is installed on the Pico. Firmware update

Pico errors – Figure 10

Car is not charging (bar is only one pixel wide and red)​

Display:

  • The lower bar is only one pixel wide and red

Meaning:

  • The charging station does not release any current.

Possible causes:

  • The load management cannot release any current to the station because a Pico is overloaded.

  • The Pico in the charging group cannot communicate via the mesh with other Picos in the same charging group.

Actions:

  • Check whether the nodes have sufficient current.

  • For a more detailed analysis, please call support.

Pico errors – Figure 11

High temperature​

High temperature

Meaning:

  • The high internal temperature of the Pico causes the maximum charging power to be throttled.

Possible causes:

  • Direct sunlight: The device may be exposed to direct sunlight, which leads to excessive heat build-up.

Action:

  • Perform a firmware update if the version is lower than 0.0.29.

  • The display brightness of the Pico should be set to the minimum. This has the greatest effect, as less energy is generated directly inside the housing.

Car-specific problems

  • Hyundai Ioniq 5: In isolated cases, this car trips the RCD at the end of the charging session, and as a manufacturer of charging stations, we cannot change this, since the RCD trips independently of the charging station.

  • Zoé: The older models must be configured with a start current of 10A, as they do not start charging at 6A. A test has shown that with a single-phase charging cable, charging also starts when only 6A start current is available. In isolated cases, this car trips the RCD at the end of the charging session, and as a manufacturer of charging stations, we cannot change this, since the RCD trips independently of the charging station.

  • Renault Kangoo Electric: Only starts charging from 8A

  • Skoda Enyaq: It can sometimes take up to 1min 30sec until the charging session starts. Alternatively, deactivate the Car-ID.

  • Audi Q4: Charging does not start.

    • Solution 1: According to initial experience on 23.01.2026, the problem could also be solved with the latest Audi software.

    • Solution 2: Install at least version 0.0.33 on the Pico and deactivate the car-id.

  • Dacia Spring: Charging does not start. Solution: Install version 0.0.33 and deactivate the car-id on the Pico.

  • Hyundai Ioniq: The car only starts if the RFID card is held up first and the charging is then started. Alternatively, the Car-ID must be deactivated.

  • Leapmotor / T03: Cannot cope with the phase switching. If charging is interrupted by the car after one minute, the door must be opened and closed several times on the car side.

  • Subaru Solterra: Only starts charging from 8A and with the Car-ID deactivated

  • Mazda MX-30: Only starts charging if the Car-ID is deactivated.

  • Honda E:ny1: Only starts charging from 8A.

  • dongfeng box: Cannot cope with the phase switching. If charging is interrupted by the car after one minute, the door must be unlocked on the car side after 7 minutes, and it then starts charging again.

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