---
title: "Update Firmware Version for Offline OTA"
method: POST
path: "/api/v4/ota/ev_charger/firmware/save/newVersion"
tags: ["EVSE Configuration"]
---

# Update Firmware Version for Offline OTA

`POST /api/v4/ota/ev_charger/firmware/save/newVersion`

## Request

- Base URL: `https://api-qa2.enphaseenergy.com`
- URL: `https://api-qa2.enphaseenergy.com/api/v4/ota/ev_charger/firmware/save/newVersion`
- Auth: none declared
- TypeScript: <https://skmtc.dev/enphase/apis/commissioning-api/docs/api/v4/ota/ev_charger/firmware/save/newVersion/post.ts> (a function with typed inputs; its response is checked against the schema)

Used to update the firmware version in the Enphase database for EV chargers that have been upgraded to a new firmware version through an offline OTA proces

## Query parameters

- `key` string, required

## Request body

- object
  - `newFirmwareVersion` string, required: New firmware version to update in the database
  - `serialNumbers` string[], required: List of charger serial numbers (max 50)

## Response `200`

OK

- object
  - `responseMessage` string: Status message of the update request
  - `failedChargers` string[]: List of charger serial numbers that failed to update (present only on partial success)

## Other responses

- `400`: Bad Request
- `401`: Unauthorized
- `429`: Too Many Requests
- `500`: Internal Server Error

---

[API](https://skmtc.dev/enphase/apis/commissioning-api.md) - [All operations](https://skmtc.dev/enphase/apis/commissioning-api/llms.txt) - [OpenAPI document](https://skmtc.dev/enphase/apis/commissioning-api/revisions/73a4001046e2?raw)