diff --git a/openthread_border_router/CHANGELOG.md b/openthread_border_router/CHANGELOG.md
index 0573b2df9ed..f60450590c1 100644
--- a/openthread_border_router/CHANGELOG.md
+++ b/openthread_border_router/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## 2.14.0
+- Remove firmware flashing from the addon, this is now handled by Core 2025.7.0.
+
 ## 2.13.0
 - Bump to OTBR POSIX version b067e5ac (2025-01-13 22:32:22 -0500)
 - Bump universal-silabs-flasher to 0.0.28
diff --git a/openthread_border_router/DOCS.md b/openthread_border_router/DOCS.md
index 7ec95d6ae70..fe3b0d368f3 100644
--- a/openthread_border_router/DOCS.md
+++ b/openthread_border_router/DOCS.md
@@ -12,9 +12,10 @@ Follow these steps to get the add-on installed on your system:
 
 ## How to use
 
-You will need a 802.15.4 capable radio supported by OpenThread. Home Assistant
-Yellow as well as Home Assistant SkyConnect/Connect ZBT-1 are both capable to run
-OpenThread. This add-on automatically installs the necessary firmware on these systems.
+You will need a 802.15.4 capable radio supported by OpenThread flashed with OpenThread
+RCP firmware. Home Assistant Yellow as well as Home Assistant SkyConnect/Connect ZBT-1
+are both able to run OpenThread and will be flashed with the correct firmware by Home
+Assistant Core.
 
 If you are using Home Assistant Yellow, choose `/dev/ttyAMA1` as device.
 
@@ -61,7 +62,6 @@ Add-on configuration:
 | device (mandatory) | Serial port where the OpenThread RCP Radio is attached |
 | baudrate           | Serial port baudrate (depends on firmware)   |
 | flow_control       | If hardware flow control should be enabled (depends on firmware) |
-| autoflash_firmware | Automatically install/update firmware (Home Assistant SkyConnect/Yellow) |
 | otbr_log_level     | Set the log level of the OpenThread BorderRouter Agent     |
 | firewall           | Enable OpenThread Border Router firewall to block unnecessary traffic |
 | nat64              | Enable NAT64 to allow Thread devices accessing IPv4 addresses |
diff --git a/openthread_border_router/Dockerfile b/openthread_border_router/Dockerfile
index a758d34377b..8fe45750ec1 100644
--- a/openthread_border_router/Dockerfile
+++ b/openthread_border_router/Dockerfile
@@ -3,7 +3,6 @@ FROM $BUILD_FROM
 
 ARG BUILD_ARCH
 ARG OTBR_VERSION
-ARG UNIVERSAL_SILABS_FLASHER
 
 # Set shell
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
@@ -93,8 +92,6 @@ RUN \
         && cd build/otbr/ \
         && ninja \
         && ninja install) \
-    && pip install --break-system-packages \
-       universal-silabs-flasher==${UNIVERSAL_SILABS_FLASHER} \
     && apt-get purge -y --auto-remove \
        git \
        nodejs \
diff --git a/openthread_border_router/build.yaml b/openthread_border_router/build.yaml
index 8bf57d2054f..a0998bc190f 100644
--- a/openthread_border_router/build.yaml
+++ b/openthread_border_router/build.yaml
@@ -4,4 +4,3 @@ build_from:
   amd64: ghcr.io/home-assistant/amd64-base-debian:bookworm
 args:
   OTBR_VERSION: b067e5ac5f8b3e92750df24922017eee2bc0fa04
-  UNIVERSAL_SILABS_FLASHER: 0.0.28
diff --git a/openthread_border_router/config.yaml b/openthread_border_router/config.yaml
index 3e982a32837..31759ebfb2a 100644
--- a/openthread_border_router/config.yaml
+++ b/openthread_border_router/config.yaml
@@ -1,5 +1,5 @@
 ---
-version: 2.13.0
+version: 2.14.0
 slug: openthread_border_router
 name: OpenThread Border Router
 description: OpenThread Border Router add-on
@@ -8,7 +8,7 @@ url: >-
 arch:
   - aarch64
   - amd64
-homeassistant: 2023.9.0
+homeassistant: 2025.7.0
 gpio: true
 hassio_api: true
 discovery:
@@ -28,7 +28,6 @@ options:
   device: null
   baudrate: "460800"
   flow_control: true
-  autoflash_firmware: true
   otbr_log_level: notice
   firewall: true
   nat64: false
@@ -43,7 +42,6 @@ schema:
   baudrate: list(57600|115200|230400|460800|921600)
   flow_control: bool
   network_device: str?
-  autoflash_firmware: bool
   otbr_log_level: list(debug|info|notice|warning|error|critical|alert|emergency)
   firewall: bool
   nat64: bool
diff --git a/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/otbr-agent/dependencies.d/universal-silabs-flasher b/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/otbr-agent/dependencies.d/universal-silabs-flasher
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/otbr-agent/run b/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/otbr-agent/run
index af84f245307..2b6885f8638 100755
--- a/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/otbr-agent/run
+++ b/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/otbr-agent/run
@@ -17,6 +17,11 @@ declare otbr_log_level_int
 declare otbr_rest_listen
 declare otbr_rest_listen_port
 
+# Cleanup unused configs
+if bashio::config.exists 'autoflash_firmware'; then
+    bashio::addon.option 'autoflash_firmware'
+fi
+
 backbone_if="$(bashio::api.supervisor 'GET' '/network/info' '' 'first(.interfaces[] | select (.primary == true)) .interface')"
 device=$(bashio::config 'device')
 
diff --git a/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/universal-silabs-flasher/dependencies.d/banner b/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/universal-silabs-flasher/dependencies.d/banner
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/universal-silabs-flasher/notification-fd b/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/universal-silabs-flasher/notification-fd
deleted file mode 100644
index 00750edc07d..00000000000
--- a/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/universal-silabs-flasher/notification-fd
+++ /dev/null
@@ -1 +0,0 @@
-3
diff --git a/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/universal-silabs-flasher/type b/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/universal-silabs-flasher/type
deleted file mode 100644
index bdd22a1850a..00000000000
--- a/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/universal-silabs-flasher/type
+++ /dev/null
@@ -1 +0,0 @@
-oneshot
diff --git a/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/universal-silabs-flasher/up b/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/universal-silabs-flasher/up
deleted file mode 100644
index 56e09fe7678..00000000000
--- a/openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/universal-silabs-flasher/up
+++ /dev/null
@@ -1 +0,0 @@
-/etc/s6-overlay/scripts/universal-silabs-flasher-up
diff --git a/openthread_border_router/rootfs/etc/s6-overlay/scripts/universal-silabs-flasher-up b/openthread_border_router/rootfs/etc/s6-overlay/scripts/universal-silabs-flasher-up
deleted file mode 100755
index fc632d8139f..00000000000
--- a/openthread_border_router/rootfs/etc/s6-overlay/scripts/universal-silabs-flasher-up
+++ /dev/null
@@ -1,95 +0,0 @@
-#!/usr/bin/with-contenv bashio
-# vim: ft=bash
-# shellcheck shell=bash
-# ==============================================================================
-# Start universal-silabs-flasher if requested
-# ==============================================================================
-
-# shellcheck disable=SC2034
-declare autoflash_firmware
-declare device
-declare firmware
-declare usb_device_path
-declare usb_manufacturer
-declare usb_product
-declare gpio_reset_flag
-
-function exit_no_firmware {
-    bashio::log.warning "No firmware found for the selected device, assuming firmware is installed."
-    exit 0
-}
-
-# Function to check if the device is Home Assistant Yellow
-function is_home_assistant_yellow {
-    # First, ensure the device is /dev/ttyAMA1
-    if [ "${device}" != "/dev/ttyAMA1" ]; then
-        return 1
-    fi
-
-    # Check the known paths for Home Assistant Yellow
-    local paths=(
-        "/sys/devices/platform/soc/fe201800.serial/tty/ttyAMA1"
-        "/sys/devices/platform/axi/1000120000.pcie/1f0003c000.serial/tty/ttyAMA1"
-    )
-    for path in "${paths[@]}"; do
-        if [ -d "${path}" ]; then
-            return 0
-        fi
-    done
-    return 1
-}
-
-device=$(bashio::config 'device')
-gpio_reset_flag=""
-
-if bashio::config.false 'autoflash_firmware'; then
-    bashio::log.info "Flashing firmware is disabled"
-    exit 0
-fi
-
-if bashio::config.has_value 'network_device'; then
-    bashio::log.info "Network device is selected, skipping firmware flashing"
-    exit 0
-fi
-
-if is_home_assistant_yellow; then
-    bashio::log.info "Detected Home Assistant Yellow"
-    firmware="yellow_openthread_rcp_2.4.4.0_GitHub-7074a43e4_gsdk_4.4.4.gbl"
-    gpio_reset_flag="--bootloader-reset yellow"
-else
-    # Check device manufacturer/product information
-    # shellcheck disable=SC2046,SC2086
-    usb_device_path=$(realpath /sys/class/tty/$(readlink /sys/class/tty/$(basename ${device}) | sed 's:/[^/]*tty[^/]*::g' )/../)
-    if [ ! -f "${usb_device_path}/idProduct" ]; then
-        bashio::log.info "The selected serial port is not a USB device."
-        exit_no_firmware
-    fi
-
-    if [ ! -f "${usb_device_path}/manufacturer" ] || [ ! -f "${usb_device_path}/product" ]; then
-        bashio::log.info "USB device is missing manufacturer or product name."
-        exit_no_firmware
-    fi
-
-    usb_manufacturer=$(cat "${usb_device_path}/manufacturer")
-    usb_product=$(cat "${usb_device_path}/product")
-
-    bashio::log.info "Checking ${device} identifying ${usb_product} from ${usb_manufacturer}."
-    if [[ "${usb_manufacturer}" == "Nabu Casa" && "${usb_product}" == "SkyConnect"* ]]; then
-        firmware="skyconnect_openthread_rcp_2.4.4.0_GitHub-7074a43e4_gsdk_4.4.4.gbl"
-    elif [[ "${usb_manufacturer}" == "Nabu Casa" && "${usb_product}" == "Home Assistant Connect ZBT-1"* ]]; then
-        firmware="skyconnect_openthread_rcp_2.4.4.0_GitHub-7074a43e4_gsdk_4.4.4.gbl"
-    elif [[ "${usb_manufacturer}" == "ITEAD" && "${usb_product}" == "SONOFF Zigbee 3.0 USB Dongle Plus V2" ]]; then
-        firmware="ot-rcp-v2.4.2.0-zbdonglee-460800.gbl"
-        gpio_reset_flag="--bootloader-reset sonoff"
-    elif [[ "${usb_manufacturer}" == "SMLIGHT" && "${usb_product}" == "SMLIGHT SLZB-07" ]]; then
-        firmware="ot-rcp-v2.4.2.0-slzb-07-460800.gbl"
-        gpio_reset_flag="--bootloader-reset slzb07"
-    else
-        exit_no_firmware
-    fi
-fi
-
-bashio::log.info "Starting universal-silabs-flasher with ${device}"
-# shellcheck disable=SC2086
-exec universal-silabs-flasher --device ${device}  ${gpio_reset_flag}  \
-     flash --ensure-exact-version --allow-cross-flashing --firmware "/root/${firmware}"
diff --git a/openthread_border_router/rootfs/root/ot-rcp-v2.4.2.0-slzb-07-460800.gbl b/openthread_border_router/rootfs/root/ot-rcp-v2.4.2.0-slzb-07-460800.gbl
deleted file mode 100644
index 81f92cb757c..00000000000
Binary files a/openthread_border_router/rootfs/root/ot-rcp-v2.4.2.0-slzb-07-460800.gbl and /dev/null differ
diff --git a/openthread_border_router/rootfs/root/ot-rcp-v2.4.2.0-zbdonglee-460800.gbl b/openthread_border_router/rootfs/root/ot-rcp-v2.4.2.0-zbdonglee-460800.gbl
deleted file mode 100644
index 6b62389913f..00000000000
Binary files a/openthread_border_router/rootfs/root/ot-rcp-v2.4.2.0-zbdonglee-460800.gbl and /dev/null differ
diff --git a/openthread_border_router/rootfs/root/skyconnect_openthread_rcp_2.4.4.0_GitHub-7074a43e4_gsdk_4.4.4.gbl b/openthread_border_router/rootfs/root/skyconnect_openthread_rcp_2.4.4.0_GitHub-7074a43e4_gsdk_4.4.4.gbl
deleted file mode 100644
index 2b7b9cb91d3..00000000000
Binary files a/openthread_border_router/rootfs/root/skyconnect_openthread_rcp_2.4.4.0_GitHub-7074a43e4_gsdk_4.4.4.gbl and /dev/null differ
diff --git a/openthread_border_router/rootfs/root/yellow_openthread_rcp_2.4.4.0_GitHub-7074a43e4_gsdk_4.4.4.gbl b/openthread_border_router/rootfs/root/yellow_openthread_rcp_2.4.4.0_GitHub-7074a43e4_gsdk_4.4.4.gbl
deleted file mode 100644
index c20313baa94..00000000000
Binary files a/openthread_border_router/rootfs/root/yellow_openthread_rcp_2.4.4.0_GitHub-7074a43e4_gsdk_4.4.4.gbl and /dev/null differ
diff --git a/openthread_border_router/translations/en.yaml b/openthread_border_router/translations/en.yaml
index 8f55f9b9951..0d65aa973c4 100644
--- a/openthread_border_router/translations/en.yaml
+++ b/openthread_border_router/translations/en.yaml
@@ -16,11 +16,6 @@ configuration:
       <host:port> when connecting to a device via sockets (takes precedence
       over above configuration). Not recommended! See documentation for more
       information.
-  autoflash_firmware:
-    name: Automatically flash firmware
-    description: >-
-      Automatically flash OpenThread RCP firmware on Home Assistant Yellow and
-      SkyConnect/Connect ZBT-1.
   otbr_log_level:
     name: OpenThread Border Router agent log level
     description: >-