diff --git a/.github/workflows/matrix_build.yml b/.github/workflows/matrix_build.yml
index d07753e7..c959663a 100644
--- a/.github/workflows/matrix_build.yml
+++ b/.github/workflows/matrix_build.yml
@@ -28,17 +28,18 @@ jobs:
       fail-fast: false
       matrix:
         platform:
+          - ak3918ev300
+          - gk7102
           - hi3516cv100
           - hi3516cv200
-          - hi3519v101
           - hi3516cv300
           - hi3516cv500
           - hi3516ev200
+          - hi3519v101
           - hi3536cv100
+          - t31
           - xm510
           - xm530
-          - ak3918ev300
-          - gk7102
 
     steps:
 
@@ -190,6 +191,14 @@ jobs:
             release: fpv
 
           # MVP
+          - platform: t10
+            release: lite
+          - platform: t20
+            release: lite
+          - platform: t21
+            release: lite
+          - platform: t31
+            release: lite
           - platform: xm510
             release: lite
           - platform: xm530
diff --git a/.github/workflows/t10_images.yml b/.github/workflows/t10_images.yml
deleted file mode 100644
index 11f92026..00000000
--- a/.github/workflows/t10_images.yml
+++ /dev/null
@@ -1,152 +0,0 @@
-name: "T10"
-
-on:
-  push:
-    branches:
-      - production
-    tags:
-      - "v*"
-  schedule:
-      - cron: "00 02 * * *"
-  workflow_dispatch:
-
-jobs:
-  build_core:
-    name: OpenIPC firmware for T10
-    runs-on: ubuntu-18.04
-
-    steps:
-
-      - name: Checkout
-        id: checkout
-        uses: actions/checkout@v2
-
-      - name: Install build dependencies
-        run: |
-          make install-deps
-          mkdir -p tmp
-          if [ ! -z "$ACT" ]; then
-            apt install -y cpio rsync bc
-            echo "FORCE_UNSAFE_CONFIGURE=1" >> $GITHUB_ENV
-            # Mitigate #325 issue
-            apt install -y pip && pip install cmake
-          else
-            # https://github.com/actions/runner-images/issues/2577
-            echo "1.1.1.1 invisible-mirror.net" | sudo tee -a /etc/hosts
-          fi
-
-      - name: Free disk space
-        if: ${{ !env.ACT }}
-        run: |
-          sudo swapoff -a
-          sudo rm -f /swapfile
-          sudo apt clean
-          docker rmi $(docker image ls -aq)
-          df -h
-
-      - name: Prepare buildroot
-        id: prepare
-        run: |
-          HEAD_TAG=$(git tag --points-at HEAD)
-          GIT_HASH=$(git rev-parse --short $GITHUB_SHA)
-          BRANCH_NAME=$(echo $GITHUB_REF | cut -d'/' -f 3)
-          if [ -z "$HEAD_TAG" ]; then
-            TAG_NAME="latest"
-            RELEASE_NAME="Development Build"
-            PRERELEASE=true
-          else
-            TAG_NAME=${{ github.ref }}
-            RELEASE_NAME="Release ${{ github.ref }}"
-            PRERELEASE=false
-          fi
-          echo "GIT_HASH=$GIT_HASH" >> $GITHUB_ENV
-          echo "TAG_NAME=$TAG_NAME" >> $GITHUB_ENV
-          echo "RELEASE_NAME=$RELEASE_NAME" >> $GITHUB_ENV
-          echo "PRERELEASE=$PRERELEASE" >> $GITHUB_ENV
-          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE
-          make prepare
-
-      - name: Build T10 firmware
-        id: build-t10-firmware
-        continue-on-error: true
-        run: |
-          ARCHIVE_FW="${GITHUB_WORKSPACE}/output/images/openipc.t10-br.tgz"
-          echo "ARCHIVE_FW=$ARCHIVE_FW" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE
-          make PLATFORM=ingenic BOARD=unknown_unknown_t10_openipc all
-          [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) -gt 2097152 ]] && echo "TG_NOTIFY=Warning, kernel size exceeded : $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) vs 2097152... T10" >> $GITHUB_ENV && exit 1
-          [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) -gt 5242880 ]] && echo "TG_NOTIFY=Warning, rootfs size exceeded - $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) vs 5242880... T10" >> $GITHUB_ENV && exit 1
-          cd ${GITHUB_WORKSPACE}/output/images
-          mv uImage uImage.t10
-          mv rootfs.squashfs rootfs.squashfs.t10
-          md5sum rootfs.squashfs.t10 > rootfs.squashfs.t10.md5sum
-          md5sum uImage.t10 > uImage.t10.md5sum
-          tar -cvzf $ARCHIVE_FW *t10*
-
-      - name: Build T10 SDK
-        id: build-t10-sdk
-        continue-on-error: true
-        run: |
-          ARCHIVE_SDK="${GITHUB_WORKSPACE}/output/images/mipsel-openipc-linux-musl_sdk-buildroot.tar.gz"
-          echo "ARCHIVE_SDK=$ARCHIVE_SDK" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE/output
-          make sdk
-
-      - name: Send error message to telegram channel
-        env:
-          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
-          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
-        if: steps.build-t10-firmware.outcome != 'success' || steps.build-t10-sdk.outcome != 'success'
-        run: |
-          TG_OPTIONS="-s --connect-timeout 30 --max-time 30"
-          TG_NOTIFY="${TG_NOTIFY:=Warning, Buildroot compiling error... T10}"
-          TG_HEADER=$(echo -e "\r\n$TG_NOTIFY \r\n\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9A\xA0 GitHub Actions")
-          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendMessage \
-            -F chat_id=$TG_CHANNEL -F text="$TG_HEADER"
-          exit 2
-
-      - name: Create release
-        if: ${{ !env.ACT }}
-        uses: actions/create-release@v1
-        continue-on-error: true
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ env.TAG_NAME }}
-          release_name: ${{ env.RELEASE_NAME }}
-          draft: false
-          prerelease: ${{ env.PRERELEASE }}
-
-      - name: Upload NOR FW to release
-        if: ${{ !env.ACT }}
-        uses: svenstaro/upload-release-action@v2
-        continue-on-error: true
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ${{ env.ARCHIVE_FW }}
-          asset_name: "openipc.t10-br.tgz"
-          tag: ${{ env.TAG_NAME }}
-          overwrite: true
-
-      - name: Upload SDK to release
-        if: ${{ !env.ACT }}
-        uses: svenstaro/upload-release-action@v2
-        continue-on-error: true
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ${{ env.ARCHIVE_SDK }}
-          asset_name: "mipsel-openipc-t10-linux-musl_sdk-buildroot.tar.gz"
-          tag: ${{ env.TAG_NAME }}
-          overwrite: true
-
-      - name: Send binary file to telegram channel
-        if: ${{ !env.ACT }}
-        env:
-          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
-          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
-        run: |
-          TG_OPTIONS="-s --connect-timeout 30 --max-time 30"
-          TG_HEADER=$(echo -e "\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9C\x85 GitHub Actions")
-          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendDocument \
-            -F chat_id=$TG_CHANNEL -F document="@$ARCHIVE_FW" -F caption="$TG_HEADER"
diff --git a/.github/workflows/t20_images.yml b/.github/workflows/t20_images.yml
deleted file mode 100644
index 32203c90..00000000
--- a/.github/workflows/t20_images.yml
+++ /dev/null
@@ -1,152 +0,0 @@
-name: "T20"
-
-on:
-  push:
-    branches:
-      - production
-    tags:
-      - "v*"
-  schedule:
-      - cron: "00 02 * * *"
-  workflow_dispatch:
-
-jobs:
-  build_core:
-    name: OpenIPC firmware for T20
-    runs-on: ubuntu-18.04
-
-    steps:
-
-      - name: Checkout
-        id: checkout
-        uses: actions/checkout@v2
-
-      - name: Install build dependencies
-        run: |
-          make install-deps
-          mkdir -p tmp
-          if [ ! -z "$ACT" ]; then
-            apt install -y cpio rsync bc
-            echo "FORCE_UNSAFE_CONFIGURE=1" >> $GITHUB_ENV
-            # Mitigate #325 issue
-            apt install -y pip && pip install cmake
-          else
-            # https://github.com/actions/runner-images/issues/2577
-            echo "1.1.1.1 invisible-mirror.net" | sudo tee -a /etc/hosts
-          fi
-
-      - name: Free disk space
-        if: ${{ !env.ACT }}
-        run: |
-          sudo swapoff -a
-          sudo rm -f /swapfile
-          sudo apt clean
-          docker rmi $(docker image ls -aq)
-          df -h
-
-      - name: Prepare buildroot
-        id: prepare
-        run: |
-          HEAD_TAG=$(git tag --points-at HEAD)
-          GIT_HASH=$(git rev-parse --short $GITHUB_SHA)
-          BRANCH_NAME=$(echo $GITHUB_REF | cut -d'/' -f 3)
-          if [ -z "$HEAD_TAG" ]; then
-            TAG_NAME="latest"
-            RELEASE_NAME="Development Build"
-            PRERELEASE=true
-          else
-            TAG_NAME=${{ github.ref }}
-            RELEASE_NAME="Release ${{ github.ref }}"
-            PRERELEASE=false
-          fi
-          echo "GIT_HASH=$GIT_HASH" >> $GITHUB_ENV
-          echo "TAG_NAME=$TAG_NAME" >> $GITHUB_ENV
-          echo "RELEASE_NAME=$RELEASE_NAME" >> $GITHUB_ENV
-          echo "PRERELEASE=$PRERELEASE" >> $GITHUB_ENV
-          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE
-          make prepare
-
-      - name: Build T20 firmware
-        id: build-t20-firmware
-        continue-on-error: true
-        run: |
-          ARCHIVE_FW="${GITHUB_WORKSPACE}/output/images/openipc.t20-br.tgz"
-          echo "ARCHIVE_FW=$ARCHIVE_FW" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE
-          make PLATFORM=ingenic BOARD=unknown_unknown_t20_openipc all
-          [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) -gt 2097152 ]] && echo "TG_NOTIFY=Warning, kernel size exceeded : $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) vs 2097152... T20" >> $GITHUB_ENV && exit 1
-          [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) -gt 5242880 ]] && echo "TG_NOTIFY=Warning, rootfs size exceeded - $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) vs 5242880... T20" >> $GITHUB_ENV && exit 1
-          cd ${GITHUB_WORKSPACE}/output/images
-          mv uImage uImage.t20
-          mv rootfs.squashfs rootfs.squashfs.t20
-          md5sum rootfs.squashfs.t20 > rootfs.squashfs.t20.md5sum
-          md5sum uImage.t20 > uImage.t20.md5sum
-          tar -cvzf $ARCHIVE_FW *t20*
-
-      - name: Build T20 SDK
-        id: build-t20-sdk
-        continue-on-error: true
-        run: |
-          ARCHIVE_SDK="${GITHUB_WORKSPACE}/output/images/mipsel-openipc-linux-musl_sdk-buildroot.tar.gz"
-          echo "ARCHIVE_SDK=$ARCHIVE_SDK" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE/output
-          make sdk
-
-      - name: Send error message to telegram channel
-        env:
-          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
-          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
-        if: steps.build-t20-firmware.outcome != 'success' || steps.build-t20-sdk.outcome != 'success'
-        run: |
-          TG_OPTIONS="-s --connect-timeout 30 --max-time 30"
-          TG_NOTIFY="${TG_NOTIFY:=Warning, Buildroot compiling error... T20}"
-          TG_HEADER=$(echo -e "\r\n$TG_NOTIFY \r\n\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9A\xA0 GitHub Actions")
-          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendMessage \
-            -F chat_id=$TG_CHANNEL -F text="$TG_HEADER"
-          exit 2
-
-      - name: Create release
-        if: ${{ !env.ACT }}
-        uses: actions/create-release@v1
-        continue-on-error: true
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ env.TAG_NAME }}
-          release_name: ${{ env.RELEASE_NAME }}
-          draft: false
-          prerelease: ${{ env.PRERELEASE }}
-
-      - name: Upload NOR FW to release
-        if: ${{ !env.ACT }}
-        uses: svenstaro/upload-release-action@v2
-        continue-on-error: true
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ${{ env.ARCHIVE_FW }}
-          asset_name: "openipc.t20-br.tgz"
-          tag: ${{ env.TAG_NAME }}
-          overwrite: true
-
-      - name: Upload SDK to release
-        if: ${{ !env.ACT }}
-        uses: svenstaro/upload-release-action@v2
-        continue-on-error: true
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ${{ env.ARCHIVE_SDK }}
-          asset_name: "mipsel-openipc-t20-linux-musl_sdk-buildroot.tar.gz"
-          tag: ${{ env.TAG_NAME }}
-          overwrite: true
-
-      - name: Send binary file to telegram channel
-        if: ${{ !env.ACT }}
-        env:
-          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
-          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
-        run: |
-          TG_OPTIONS="-s --connect-timeout 30 --max-time 30"
-          TG_HEADER=$(echo -e "\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9C\x85 GitHub Actions")
-          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendDocument \
-            -F chat_id=$TG_CHANNEL -F document="@$ARCHIVE_FW" -F caption="$TG_HEADER"
diff --git a/.github/workflows/t21_images.yml b/.github/workflows/t21_images.yml
deleted file mode 100644
index adaedc56..00000000
--- a/.github/workflows/t21_images.yml
+++ /dev/null
@@ -1,152 +0,0 @@
-name: "T21"
-
-on:
-  push:
-    branches:
-      - production
-    tags:
-      - "v*"
-  schedule:
-      - cron: "00 02 * * *"
-  workflow_dispatch:
-
-jobs:
-  build_core:
-    name: OpenIPC firmware for T21
-    runs-on: ubuntu-18.04
-
-    steps:
-
-      - name: Checkout
-        id: checkout
-        uses: actions/checkout@v2
-
-      - name: Install build dependencies
-        run: |
-          make install-deps
-          mkdir -p tmp
-          if [ ! -z "$ACT" ]; then
-            apt install -y cpio rsync bc
-            echo "FORCE_UNSAFE_CONFIGURE=1" >> $GITHUB_ENV
-            # Mitigate #325 issue
-            apt install -y pip && pip install cmake
-          else
-            # https://github.com/actions/runner-images/issues/2577
-            echo "1.1.1.1 invisible-mirror.net" | sudo tee -a /etc/hosts
-          fi
-
-      - name: Free disk space
-        if: ${{ !env.ACT }}
-        run: |
-          sudo swapoff -a
-          sudo rm -f /swapfile
-          sudo apt clean
-          docker rmi $(docker image ls -aq)
-          df -h
-
-      - name: Prepare buildroot
-        id: prepare
-        run: |
-          HEAD_TAG=$(git tag --points-at HEAD)
-          GIT_HASH=$(git rev-parse --short $GITHUB_SHA)
-          BRANCH_NAME=$(echo $GITHUB_REF | cut -d'/' -f 3)
-          if [ -z "$HEAD_TAG" ]; then
-            TAG_NAME="latest"
-            RELEASE_NAME="Development Build"
-            PRERELEASE=true
-          else
-            TAG_NAME=${{ github.ref }}
-            RELEASE_NAME="Release ${{ github.ref }}"
-            PRERELEASE=false
-          fi
-          echo "GIT_HASH=$GIT_HASH" >> $GITHUB_ENV
-          echo "TAG_NAME=$TAG_NAME" >> $GITHUB_ENV
-          echo "RELEASE_NAME=$RELEASE_NAME" >> $GITHUB_ENV
-          echo "PRERELEASE=$PRERELEASE" >> $GITHUB_ENV
-          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE
-          make prepare
-
-      - name: Build T21 firmware
-        id: build-t21-firmware
-        continue-on-error: true
-        run: |
-          ARCHIVE_FW="${GITHUB_WORKSPACE}/output/images/openipc.t21-br.tgz"
-          echo "ARCHIVE_FW=$ARCHIVE_FW" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE
-          make PLATFORM=ingenic BOARD=unknown_unknown_t21_openipc all
-          [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) -gt 2097152 ]] && echo "TG_NOTIFY=Warning, kernel size exceeded : $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) vs 2097152... T21" >> $GITHUB_ENV && exit 1
-          [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) -gt 5242880 ]] && echo "TG_NOTIFY=Warning, rootfs size exceeded - $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) vs 5242880... T21" >> $GITHUB_ENV && exit 1
-          cd ${GITHUB_WORKSPACE}/output/images
-          mv uImage uImage.t21
-          mv rootfs.squashfs rootfs.squashfs.t21
-          md5sum rootfs.squashfs.t21 > rootfs.squashfs.t21.md5sum
-          md5sum uImage.t21 > uImage.t21.md5sum
-          tar -cvzf $ARCHIVE_FW *t21*
-
-      - name: Build T21 SDK
-        id: build-t21-sdk
-        continue-on-error: true
-        run: |
-          ARCHIVE_SDK="${GITHUB_WORKSPACE}/output/images/mipsel-openipc-linux-musl_sdk-buildroot.tar.gz"
-          echo "ARCHIVE_SDK=$ARCHIVE_SDK" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE/output
-          make sdk
-
-      - name: Send error message to telegram channel
-        env:
-          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
-          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
-        if: steps.build-t21-firmware.outcome != 'success' || steps.build-t21-sdk.outcome != 'success'
-        run: |
-          TG_OPTIONS="-s --connect-timeout 30 --max-time 30"
-          TG_NOTIFY="${TG_NOTIFY:=Warning, Buildroot compiling error... T21}"
-          TG_HEADER=$(echo -e "\r\n$TG_NOTIFY \r\n\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9A\xA0 GitHub Actions")
-          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendMessage \
-            -F chat_id=$TG_CHANNEL -F text="$TG_HEADER"
-          exit 2
-
-      - name: Create release
-        if: ${{ !env.ACT }}
-        uses: actions/create-release@v1
-        continue-on-error: true
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ env.TAG_NAME }}
-          release_name: ${{ env.RELEASE_NAME }}
-          draft: false
-          prerelease: ${{ env.PRERELEASE }}
-
-      - name: Upload NOR FW to release
-        if: ${{ !env.ACT }}
-        uses: svenstaro/upload-release-action@v2
-        continue-on-error: true
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ${{ env.ARCHIVE_FW }}
-          asset_name: "openipc.t21-br.tgz"
-          tag: ${{ env.TAG_NAME }}
-          overwrite: true
-
-      - name: Upload SDK to release
-        if: ${{ !env.ACT }}
-        uses: svenstaro/upload-release-action@v2
-        continue-on-error: true
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ${{ env.ARCHIVE_SDK }}
-          asset_name: "mipsel-openipc-t21-linux-musl_sdk-buildroot.tar.gz"
-          tag: ${{ env.TAG_NAME }}
-          overwrite: true
-
-      - name: Send binary file to telegram channel
-        if: ${{ !env.ACT }}
-        env:
-          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
-          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
-        run: |
-          TG_OPTIONS="-s --connect-timeout 30 --max-time 30"
-          TG_HEADER=$(echo -e "\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9C\x85 GitHub Actions")
-          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendDocument \
-            -F chat_id=$TG_CHANNEL -F document="@$ARCHIVE_FW" -F caption="$TG_HEADER"
diff --git a/.github/workflows/t31_images.yml b/.github/workflows/t31_images.yml
deleted file mode 100644
index df36c77c..00000000
--- a/.github/workflows/t31_images.yml
+++ /dev/null
@@ -1,152 +0,0 @@
-name: "T31  "
-
-on:
-  push:
-    branches:
-      - production
-    tags:
-      - "v*"
-  schedule:
-      - cron: "00 02 * * *"
-  workflow_dispatch:
-
-jobs:
-  build_core:
-    name: OpenIPC firmware for T31
-    runs-on: ubuntu-18.04
-
-    steps:
-
-      - name: Checkout
-        id: checkout
-        uses: actions/checkout@v2
-
-      - name: Install build dependencies
-        run: |
-          make install-deps
-          mkdir -p tmp
-          if [ ! -z "$ACT" ]; then
-            apt install -y cpio rsync bc
-            echo "FORCE_UNSAFE_CONFIGURE=1" >> $GITHUB_ENV
-            # Mitigate #325 issue
-            apt install -y pip && pip install cmake
-          else
-            # https://github.com/actions/runner-images/issues/2577
-            echo "1.1.1.1 invisible-mirror.net" | sudo tee -a /etc/hosts
-          fi
-
-      - name: Free disk space
-        if: ${{ !env.ACT }}
-        run: |
-          sudo swapoff -a
-          sudo rm -f /swapfile
-          sudo apt clean
-          docker rmi $(docker image ls -aq)
-          df -h
-
-      - name: Prepare buildroot
-        id: prepare
-        run: |
-          HEAD_TAG=$(git tag --points-at HEAD)
-          GIT_HASH=$(git rev-parse --short $GITHUB_SHA)
-          BRANCH_NAME=$(echo $GITHUB_REF | cut -d'/' -f 3)
-          if [ -z "$HEAD_TAG" ]; then
-            TAG_NAME="latest"
-            RELEASE_NAME="Development Build"
-            PRERELEASE=true
-          else
-            TAG_NAME=${{ github.ref }}
-            RELEASE_NAME="Release ${{ github.ref }}"
-            PRERELEASE=false
-          fi
-          echo "GIT_HASH=$GIT_HASH" >> $GITHUB_ENV
-          echo "TAG_NAME=$TAG_NAME" >> $GITHUB_ENV
-          echo "RELEASE_NAME=$RELEASE_NAME" >> $GITHUB_ENV
-          echo "PRERELEASE=$PRERELEASE" >> $GITHUB_ENV
-          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE
-          make prepare
-
-      - name: Build T31 firmware
-        id: build-t31-firmware
-        continue-on-error: true
-        run: |
-          ARCHIVE_FW="${GITHUB_WORKSPACE}/output/images/openipc.t31-br.tgz"
-          echo "ARCHIVE_FW=$ARCHIVE_FW" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE
-          make PLATFORM=ingenic BOARD=unknown_unknown_t31_openipc all
-          [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) -gt 2097152 ]] && echo "TG_NOTIFY=Warning, kernel size exceeded : $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) vs 2097152... T31" >> $GITHUB_ENV && exit 1
-          [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) -gt 5242880 ]] && echo "TG_NOTIFY=Warning, rootfs size exceeded - $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) vs 5242880... T31" >> $GITHUB_ENV && exit 1
-          cd ${GITHUB_WORKSPACE}/output/images
-          mv uImage uImage.t31
-          mv rootfs.squashfs rootfs.squashfs.t31
-          md5sum rootfs.squashfs.t31 > rootfs.squashfs.t31.md5sum
-          md5sum uImage.t31 > uImage.t31.md5sum
-          tar -cvzf $ARCHIVE_FW *t31*
-
-      - name: Build T31 SDK
-        id: build-t31-sdk
-        continue-on-error: true
-        run: |
-          ARCHIVE_SDK="${GITHUB_WORKSPACE}/output/images/mipsel-openipc-linux-musl_sdk-buildroot.tar.gz"
-          echo "ARCHIVE_SDK=$ARCHIVE_SDK" >> $GITHUB_ENV
-          cd $GITHUB_WORKSPACE/output
-          make sdk
-
-      - name: Send error message to telegram channel
-        env:
-          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
-          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
-        if: steps.build-t31-firmware.outcome != 'success' || steps.build-t31-sdk.outcome != 'success'
-        run: |
-          TG_OPTIONS="-s --connect-timeout 30 --max-time 30"
-          TG_NOTIFY="${TG_NOTIFY:=Warning, Buildroot compiling error... T31}"
-          TG_HEADER=$(echo -e "\r\n$TG_NOTIFY \r\n\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9A\xA0 GitHub Actions")
-          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendMessage \
-            -F chat_id=$TG_CHANNEL -F text="$TG_HEADER"
-          exit 2
-
-      - name: Create release
-        if: ${{ !env.ACT }}
-        uses: actions/create-release@v1
-        continue-on-error: true
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ env.TAG_NAME }}
-          release_name: ${{ env.RELEASE_NAME }}
-          draft: false
-          prerelease: ${{ env.PRERELEASE }}
-
-      - name: Upload NOR FW to release
-        if: ${{ !env.ACT }}
-        uses: svenstaro/upload-release-action@v2
-        continue-on-error: true
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ${{ env.ARCHIVE_FW }}
-          asset_name: "openipc.t31-br.tgz"
-          tag: ${{ env.TAG_NAME }}
-          overwrite: true
-
-      - name: Upload SDK to release
-        if: ${{ !env.ACT }}
-        uses: svenstaro/upload-release-action@v2
-        continue-on-error: true
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ${{ env.ARCHIVE_SDK }}
-          asset_name: "mipsel-openipc-t31-linux-musl_sdk-buildroot.tar.gz"
-          tag: ${{ env.TAG_NAME }}
-          overwrite: true
-
-      - name: Send binary file to telegram channel
-        if: ${{ !env.ACT }}
-        env:
-          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
-          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
-        run: |
-          TG_OPTIONS="-s --connect-timeout 30 --max-time 30"
-          TG_HEADER=$(echo -e "\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9C\x85 GitHub Actions")
-          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendDocument \
-            -F chat_id=$TG_CHANNEL -F document="@$ARCHIVE_FW" -F caption="$TG_HEADER"