betaflight-configurator/tabs/firmware_flasher.html

<div class="tab-firmware_flasher">
    <div class="info">
        <strong>Path:</strong><span class="path">empty</span><br />
        <strong>Size:</strong><span class="size">0 bytes</span><br />
        <strong>Status:</strong><span class="status">Firmware not loaded</span><br />
        <strong>Progress:</strong><progress class="progress" value="0" min="0" max="100"></progress>
    </div>  
    <div class="note">
        <p>
            If you are flashing board with <strong>baseflight</strong> already flashed (updating), leave this checkbox unchecked.<br />
            If you are flashing "<strong>bare</strong>" board with no firmware preloaded or you have bootloader pins <strong>shorted</strong>, check this box.<br />
        </p>
        <label><input class="updating" type="checkbox" /><span style="font-weight: bold; margin-left: 6px;">No reboot sequence</span></label><br />
        <label class="flash_on_connect_wrapper"><input class="flash_on_connect" type="checkbox" /><span style="font-weight: bold; margin-left: 6px;">Flash on connect</span></label>
    </div>
    <div class="clear-both"></div>
    <div class="buttons">
        <a class="load_file" href="#">Load Firmware [Local]</a>
        <a class="load_remote_file" href="#">Load Firmware [Online]</a>
        <a class="flash_firmware locked" href="#">Flash Firmware</a>
        <div class="clear-both"></div>
    </div>
    <div class="git_info">
        <div class="title">Github Firmware Info</div>
        <p>
            <strong>Committer:</strong> <span class="committer"></span><br />
            <strong>Date:</strong> <span class="date"></span><br />
            <strong>Message:</strong> <span class="message"></span>
        </p>
    </div>  
    <div class="warning">
        <div class="title">Warning</div>
        <p>
            Please do not try to flash <strong>non-baseflight</strong> hardware with this firmware flasher (it wont work).<br />
            Do not <strong>disconnect</strong> the board or <strong>turn off</strong> your computer while flashing.<br />
            <br />
            Note: <strong>STM32</strong> bootloader is stored in <strong>ROM</strong>, it cannot be bricked.<br />
            Note: <strong>Auto-Connect</strong> is always disabled while you are inside firmware flasher.<br />
        </p>
    </div>
    <a class="back" href="#">Leave Firmware Flasher</a>
</div>