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FMC650 PCN v2 final
 
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<table class="nd-othertables_2" style="width:100%; border-collapse: collapse;">
== 2026.06.04: Firmware update safety mechanism in FOTA Web ==
    <tr>
        <th style="width:8%; vertical-align: middle; text-align: left;">Property ID in AVL packet</th>
        <th style="width:15%; vertical-align: middle; text-align: center;">Property Name</th>
        <th style="width:5%; vertical-align: middle; text-align: center;">Bytes</th>
        <th style="width:10%; vertical-align: middle; text-align: center;">Min Value</th>
        <th style="width:10%; vertical-align: middle; text-align: center;">Max Value</th>
        <th style="width:5%; vertical-align: middle; text-align: center;">Multiplier</th>
        <th style="width:5%; vertical-align: middle; text-align: center;">Units</th>
        <th style="width:32%; vertical-align: middle; text-align: left;">Description</th>
    </tr>


    <!-- Eventual AVL 391 -->
We would like to inform you about an upcoming improvement in the FOTA WEB system, designed to enhance the safety and reliability of firmware updates for the devices. 
    <tr>
        <td>391</td>
        <td style="text-align:center;">Private/Business mode</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Private/Business mode where:<br>
        0 - Private mode OFF (Business mode ON);<br>
        1 - Private mode ON (Business mode OFF);</td>
    </tr>


    <!-- Parameter 11811 -->
{| class="wikitable"
    <tr>
|+
        <td>11811</td>
! colspan="3" style="text-align: left; background: white;" |Change description
        <td style="text-align:center;">Private/Business mode triggers</td>
|-
        <td style="text-align:center;">-</td>
| style="text-align: left; background: white;" |Change type
        <td style="text-align:center;">0</td>
| colspan="2" style="text-align: left; background: white;" | Firmware update safety mechanism
        <td style="text-align:center;">15</td>
|-
        <td style="text-align:center;">-</td>
| rowspan="2" style="width: 221px; text-align: left; background: white;" |Detailed description
        <td style="text-align:center;">-</td>
| colspan="2" style="width: 908px; text-align: left; background: white;" |We are introducing a new safety mechanism in FOTA WEB that prevents firmware updates from being executed on devices running an outdated bootloader version and in this case the firmware update task won’t be possible. This helps eliminate the risk of device malfunction during update procedures.
        <td>Private/Business mode triggers. When a trigger is activated it activates Private mode; when the trigger goes LOW, Private mode is turned OFF and the device works in Business mode. Implemented as a bit mask so that multiple choices can be selected where:<br>
|-
        0 - no trigger;<br>
| style="text-align: left; background: white;" |'''Required bootloader version:'''<br>Minimum required: 65.0E (displayed as 101.14 in FOTA Web).<br>Devices with an older version must first apply a bootloader patch before updating to newer firmware.
        1 - DIN1;<br>
| style="text-align: left; background: white;" |'''Recommended update path:'''<br>Any firmware → FM65.Ver.03.01.00.Rev.28 → (if required) FM65.Ver.03.01.00.Rev.34_1666 → FM65.Ver.03.01.01.Rev.15 or newer
        2 - DIN2;<br>
|-
        3 - DIN3;<br>
| style="text-align: left; background: white;" |Change reasons
        4 - DIN4;</td>
| colspan="2" style="text-align: left; background: white;" | Certain newer firmware versions, such as FM65.Ver.03.01.01.Rev.15 and later, exceed 1 MB in size. Devices with older bootloader versions may not support these updates safely. The new mechanism ensures that such updates are only performed when the device meets the required bootloader conditions.
    </tr>
|-
| style="text-align: left; background: white;" |Safety mechanism launch date
| colspan="2" style="text-align: left; background: white;" |Jun 15, 2026
|-
|}


    <!-- Parameter 11812 -->
{| class="wikitable"
    <tr>
|+
        <td>11812</td>
! colspan="3" style="text-align: left; background: white;" |Affected products
        <td style="text-align:center;">Private/Business DOUT control</td>
|-
        <td style="text-align:center;">-</td>
| style="width: 221px; text-align: left; background: white;" |Model
        <td style="text-align:center;">0</td>
| style="width: 448px; text-align: left; background: white;" |Affected order codes
        <td style="text-align:center;">4</td>
| style="width: 448px; text-align: left; background: white;" |Order code changes
        <td style="text-align:center;">-</td>
|-
        <td style="text-align:center;">-</td>
| style="text-align: left; background: white;" |FMC650
        <td>Private/Business DOUT. When Private mode is active the selected DOUT is turned ON, when Private mode is OFF the DOUT needs to go LOW also. Parameter values:<br>
| style="text-align: left; background: white;" |All order codes
        0 - DOUT control disabled;<br>
| style="text-align: left; background: white;" |-
        1 - DOUT1;<br>
|-
        2 - DOUT2;<br>
|}
        3 - DOUT3;<br>
        4 - DOUT4;</td>
    </tr>


    <!-- Parameter 11813 -->
{| class="wikitable"
    <tr>
|+
        <td>11813</td>
! colspan="3" style="text-align: left; background: white;" |Change impact
        <td style="text-align:center;">GPS data masking</td>
|-
        <td style="text-align:center;">-</td>
| style="width: 221px; text-align: left; background: white;" |Risk assessment
        <td style="text-align:center;">0</td>
| colspan="2" style="width: 908px; text-align: left; background: white;" |The bootloader patch firmware (Rev.34_1666) is an intermediate step and not a full firmware version. Using it as a standalone firmware may lead to limited functionality or unexpected behavior.
        <td style="text-align:center;">2</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>GPS data masking describes how the GPS data is being masked when the device is in Private mode. The parameter values are:<br>
        0 - No masking;<br>
        1 - GNSS data is sent as zero;<br>
        2 - GNSS data is sent as last good known position;</td>
    </tr>


    <!-- Parameter 11815 -->
Starting from version 03.01.00.Rev.28, devices automatically block firmware updates if the bootloader is too old. This protection significantly reduces the risk of bricking.
    <tr>
|-
        <td>11815</td>
| style="text-align: left; background: white;" |Suggested implementation plan
        <td style="text-align:center;">Private mode odometer stop</td>
| colspan="2" style="text-align: left; background: white;" |Only a limited number of devices require a bootloader update. We recommend avoiding unnecessary bootloader updates. To ensure a smooth and safe firmware update process, please follow the recommended update path sequence provided in the Change description.
        <td style="text-align:center;">-</td>
|-
        <td style="text-align:center;">0</td>
|}
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>If enabled stops odometer calculation for Odometer and Trip scenarios in Private mode:<br>
        0 - Disabled;<br>
        1 - Enabled;</td>
    </tr>


    <!-- Parameter 11816 -->
{| class="wikitable"
    <tr>
|+
        <td>11816</td>
! colspan="3" style="width: 1141px; text-align: left; background: white;" |Acknowledgement of PCN receipt
        <td style="text-align:center;">Private mode deactivation triggers</td>
|-
        <td style="text-align:center;">-</td>
| colspan="3" style="text-align: left; background: white;" |If no feedback is received within two weeks after the issue date of this notification - Teltonika may accept that this change has been tacitly accepted and can implement the change as indicated above
        <td style="text-align:center;">0</td>
|-
        <td style="text-align:center;">15</td>
|}
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Private mode deactivation triggers. When a trigger is activated it deactivates Private mode. Implemented using bit mask so that multiple choices can be selected where:<br>
        0 - no trigger;<br>
        1 - Towing detected;<br>
        2 - Unplug detected;<br>
        3 - Towing or Unplug detected;<br>
        4 - Crash detected;<br>
        5 - Towing or Crash detected;<br>
        6 - Unplug or Crash detected;<br>
        7 - Towing, Unplug or Crash detected;<br>
        8 - Autogeofence triggered;<br>
        9 - Towing or Autogeofence triggered;<br>
        10 - Unplug or Autogeofence triggered;<br>
        11 - Towing, Unplug or Autogeofence triggered;<br>
        12 - Crash or Autogeofence triggered;<br>
        13 - Towing, Crash or Autogeofence triggered;<br>
        14 - Unplug, Crash or Autogeofence triggered;<br>
        15 - Towing, Unplug, Crash or Autogeofence triggered;</td>
    </tr>
 
    <!-- Parameter 11818 -->
    <tr>
        <td>11818</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule Monday Enable</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>If enabled automatically disables Private mode on Monday during configured time:<br>
        0 - Disabled;<br>
        1 - Enabled;</td>
    </tr>
 
    <!-- Parameter 11819 -->
    <tr>
        <td>11819</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule start time of a Business mode on Monday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Monday;</td>
    </tr>
 
    <!-- Parameter 11820 -->
    <tr>
        <td>11820</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule end time of a Business mode on Monday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Monday;</td>
    </tr>
 
    <!-- Parameter 11821 -->
    <tr>
        <td>11821</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule Tuesday Enable</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>If enabled automatically disables Private mode on Tuesday during configured time:<br>
        0 - Disabled;<br>
        1 - Enabled;</td>
    </tr>
 
    <!-- Parameter 11822 -->
    <tr>
        <td>11822</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule start time of a Business mode on Tuesday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Tuesday;</td>
    </tr>
 
    <!-- Parameter 11823 -->
    <tr>
        <td>11823</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule end time of a Business mode on Tuesday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Tuesday;</td>
    </tr>
 
    <!-- Parameter 11824 -->
    <tr>
        <td>11824</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule Wednesday Enable</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>If enabled automatically disables Private mode on Wednesday during configured time:<br>
        0 - Disabled;<br>
        1 - Enabled;</td>
    </tr>
 
    <!-- Parameter 11825 -->
    <tr>
        <td>11825</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule start time of a Business mode on Wednesday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Wednesday;</td>
    </tr>
 
    <!-- Parameter 11826 -->
    <tr>
        <td>11826</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule end time of a Business mode on Wednesday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Wednesday;</td>
    </tr>
 
    <!-- Parameter 11827 -->
    <tr>
        <td>11827</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule Thursday Enable</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>If enabled automatically disables Private mode on Thursday during configured time:<br>
        0 - Disabled;<br>
        1 - Enabled;</td>
    </tr>
 
    <!-- Parameter 11828 -->
    <tr>
        <td>11828</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule start time of a Business mode on Thursday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Thursday;</td>
    </tr>
 
    <!-- Parameter 11829 -->
    <tr>
        <td>11829</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule end time of a Business mode on Thursday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Thursday;</td>
    </tr>
 
    <!-- Parameter 11830 -->
    <tr>
        <td>11830</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule Friday Enable</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>If enabled automatically disables Private mode on Friday during configured time:<br>
        0 - Disabled;<br>
        1 - Enabled;</td>
    </tr>
 
    <!-- Parameter 11831 -->
    <tr>
        <td>11831</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule start time of a Business mode on Friday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Friday;</td>
    </tr>
 
    <!-- Parameter 11832 -->
    <tr>
        <td>11832</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule end time of a Business mode on Friday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Friday;</td>
    </tr>
 
    <!-- Parameter 11833 -->
    <tr>
        <td>11833</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule Saturday Enable</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>If enabled automatically disables Private mode on Saturday during configured time:<br>
        0 - Disabled;<br>
        1 - Enabled;</td>
    </tr>
 
    <!-- Parameter 11834 -->
    <tr>
        <td>11834</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule start time of a Business mode on Saturday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Saturday;</td>
    </tr>
 
    <!-- Parameter 11835 -->
    <tr>
        <td>11835</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule end time of a Business mode on Saturday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Saturday;</td>
    </tr>
 
    <!-- Parameter 11836 -->
    <tr>
        <td>11836</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule Sunday Enable</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>If enabled automatically disables Private mode on Sunday during configured time:<br>
        0 - Disabled;<br>
        1 - Enabled;</td>
    </tr>
 
    <!-- Parameter 11837 -->
    <tr>
        <td>11837</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule start time of a Business mode on Sunday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Sunday;</td>
    </tr>
 
    <!-- Parameter 11838 -->
    <tr>
        <td>11838</td>
        <td style="text-align:center;">Private/Business mode Weekly Schedule end time of a Business mode on Sunday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Starting from a configured time until end time disables Private mode and enables Business mode on Sunday;</td>
    </tr>
 
    <!-- Parameter 11839 -->
    <tr>
        <td>11839</td>
        <td style="text-align:center;">Private/Business Weekly Schedule Time zone</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-720</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Time in minutes from GMT +00:00. Example: GMT +02:00 is 120;</td>
<!-- Parameter 11840 -->
    <tr>
        <td>11840</td>
        <td style="text-align:center;">Private/Business Weekly Schedule Daylight saving enable</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>If enabled automatically adjusts the time for daylight saving:<br>
        0 - Disabled;<br>
        1 - Enabled;</td>
    </tr>
 
    <!-- Parameter 11841 -->
    <tr>
        <td>11841</td>
        <td style="text-align:center;">Private/Business Weekly Schedule Daylight saving start week</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">4</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Sets the week when daylight saving starts:<br>
        1 - First week of a month;<br>
        2 - Second week of a month;<br>
        3 - Third week of a month;<br>
        4 - Fourth week of a month;<br>
        5 - Last week of a month;</td>
    </tr>
 
    <!-- Parameter 11842 -->
    <tr>
        <td>11842</td>
        <td style="text-align:center;">Private/Business Weekly Schedule Daylight saving start month</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">12</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Sets the month when daylight saving starts. A month is represented by a number from 1 to 12;</td>
    </tr>
 
    <!-- Parameter 11843 -->
    <tr>
        <td>11843</td>
        <td style="text-align:center;">Private/Business Weekly Schedule Daylight saving start weekday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">6</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Sets the weekday when daylight saving starts:<br>
        1 - Monday;<br>
        2 - Tuesday;<br>
        3 - Wednesday;<br>
        4 - Thursday;<br>
        5 - Friday;<br>
        6 - Saturday;<br>
        7 - Sunday;</td>
    </tr>
 
    <!-- Parameter 11844 -->
    <tr>
        <td>11844</td>
        <td style="text-align:center;">Private/Business Weekly Schedule Daylight saving start time</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Sets the time in minutes when daylight saving starts. A start time is represented by a number from 0 to 1440, where the number represents the minutes from midnight;</td>
    </tr>
 
    <!-- Parameter 11845 -->
    <tr>
        <td>11845</td>
        <td style="text-align:center;">Private/Business Weekly Schedule Daylight saving end week</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">4</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Sets the week when daylight saving ends:<br>
        1 - First week of a month;<br>
        2 - Second week of a month;<br>
        3 - Third week of a month;<br>
        4 - Fourth week of a month;<br>
        5 - Last week of a month;</td>
    </tr>
 
    <!-- Parameter 11846 -->
    <tr>
        <td>11846</td>
        <td style="text-align:center;">Private/Business Weekly Schedule Daylight saving end month</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">12</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Sets the month when daylight saving ends. A month is represented by a number from 1 to 12;</td>
    </tr>
 
    <!-- Parameter 11847 -->
    <tr>
        <td>11847</td>
        <td style="text-align:center;">Private/Business Weekly Schedule Daylight saving end weekday</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">6</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Sets the weekday when daylight saving ends:<br>
        1 - Monday;<br>
        2 - Tuesday;<br>
        3 - Wednesday;<br>
        4 - Thursday;<br>
        5 - Friday;<br>
        6 - Saturday;<br>
        7 - Sunday;</td>
    </tr>
 
    <!-- Parameter 11848 -->
    <tr>
        <td>11848</td>
        <td style="text-align:center;">Private/Business Weekly Schedule Daylight saving end time</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1440</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Sets the time in minutes when daylight saving ends. An end time is represented by a number from 0 to 1440, where the number represents the minutes from midnight;</td>
    </tr>
 
    <!-- Parameter 11849 -->
    <tr>
        <td>11849</td>
        <td style="text-align:center;">Private/Business trigger type</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Sets Private/Business trigger type:<br>
        0 - External trigger such as DIN;<br>
        1 - Weekly schedule;</td>
    </tr>
 
    <!-- Parameter 11851 -->
    <tr>
        <td>11851</td>
        <td style="text-align:center;">Private/Business DIN mode</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">0</td>
        <td style="text-align:center;">1</td>
        <td style="text-align:center;">-</td>
        <td style="text-align:center;">-</td>
        <td>Sets Private/Business DIN mode:<br>
        0 - Button: triggers on state change Low → High;<br>
        1 - Switch: triggers on state change Low → High and High → Low;</td>
    </tr>
</table>

Latest revision as of 12:08, 2 June 2026

2026.06.04: Firmware update safety mechanism in FOTA Web

We would like to inform you about an upcoming improvement in the FOTA WEB system, designed to enhance the safety and reliability of firmware updates for the devices. 

Change description
Change type Firmware update safety mechanism
Detailed description We are introducing a new safety mechanism in FOTA WEB that prevents firmware updates from being executed on devices running an outdated bootloader version and in this case the firmware update task won’t be possible. This helps eliminate the risk of device malfunction during update procedures.
Required bootloader version:
Minimum required: 65.0E (displayed as 101.14 in FOTA Web).
Devices with an older version must first apply a bootloader patch before updating to newer firmware. 		Recommended update path:
Any firmware → FM65.Ver.03.01.00.Rev.28 → (if required) FM65.Ver.03.01.00.Rev.34_1666 → FM65.Ver.03.01.01.Rev.15 or newer
Change reasons Certain newer firmware versions, such as FM65.Ver.03.01.01.Rev.15 and later, exceed 1 MB in size. Devices with older bootloader versions may not support these updates safely. The new mechanism ensures that such updates are only performed when the device meets the required bootloader conditions.
Safety mechanism launch date Jun 15, 2026
Affected products
Model Affected order codes Order code changes
FMC650 All order codes -
Change impact
Risk assessment The bootloader patch firmware (Rev.34_1666) is an intermediate step and not a full firmware version. Using it as a standalone firmware may lead to limited functionality or unexpected behavior.

Starting from version 03.01.00.Rev.28, devices automatically block firmware updates if the bootloader is too old. This protection significantly reduces the risk of bricking.

Suggested implementation plan Only a limited number of devices require a bootloader update. We recommend avoiding unnecessary bootloader updates. To ensure a smooth and safe firmware update process, please follow the recommended update path sequence provided in the Change description.
Acknowledgement of PCN receipt
If no feedback is received within two weeks after the issue date of this notification - Teltonika may accept that this change has been tacitly accepted and can implement the change as indicated above
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