{{ form_start(form) }}
<div class="row">

    <div class="col-md-2">
        <h2>Device details</h2>
        {{ form_row(form.deviceCategory) }}
        {{ form_row(form.mobileNumber) }}
        {{ form_row(form.simNumber) }}
        {{ form_row(form.engraving) }}
        {{ form_row(form.device) }}
    </div>

    <div class="col-md-0.5"></div>

    <div class="col-md-2">
        <h2>Network provider</h2>
        {{ form_row(form.provider) }}
        {{ form_row(form.password) }}
    </div>

    <div class="col-md-0.5"></div>

    <div class="col-md-2">
        <h2>Employee/Vehicle </h2>
        {{ form_row(form.employee) }}
        {{ form_row(form.vehicle) }}
    </div>

    <div class="col-md-0.5"></div>

    <div class="col-md-2">
        <h2>Data </h2>
        {{ form_row(form.freeDataAllowance) }}
        {{ form_row(form.credit) }}
        {{ form_row(form.checkedWorking) }}
        {{ form_row(form.lastChecked) }}
    </div>

</div>

<button class="btn btn-success">{{ button_label|default('Save') }}</button>
{{ form_end(form) }}