FMM640 Product Change Notifications

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Product change notifications (PCN) is the way of informing customers of upcoming changes related to Teltonika products. This includes outward appearance adjustments, hardware improvements, firmware changes, changes to package contents, etc. This page stores information regarding changes to the FMM640 tracking device. Below you will find a list of both upcoming and already implemented changes sorted from newest to oldest (top to bottom).

2022.05.24: GNSS antenna changes

We would like to inform you about the GNSS antenna changes for FMM640 starting September 2022.

Change description
Change type Mechanical part changes
Detailed description
Old version: GNSS 2.5 .png


Dimensions - 46x44x13 mm
Center frequency - 1575.42 MHz, 1602 MHz
Bandwidth - 35 MHz
VSWR on bandwidth - <1.9
GAIN - 3 dB
LNA minimum gain - 26.5 dB
LNA maximum gain - 29.5 dB
Consumption - 9 mA

New version: GNSS 2 4 .png


Dimensions - 45.2x35.8x15.1 mm
Center frequency - 1575.42 MHz, 1602 MHz
Bandwidth - 10 MHz
VSWR on bandwidth - <1.5
GAIN - 2 dB
LNA minimum gain - 26 dB
LNA maximum gain - 30 dB
Consumption - 11 mA

Change reasons Reaction to antenna market volatility.
Product release date September 2022
Affected products
Model Affected order codes Order code changes
FMM640 FMM640*******order codes No changes
Change impact
Risk assessment No risk factors encountered with this change
Suggested implementation plan No implementation plan needed

2021.08.16: SMA soldering changes

We would like to inform you that Antenna connectors (SMA SMD type) in FMM640 devices will be soldered from both sides of PCB starting in first half of September 2021.

Change description
Change type Internal
Detailed description


Old version:
400 x 400px
New version:
400 x 400px
Change reasons/Description In order to increase the structural rigidity and unify the manufacturing process of Teltonika IoT Group devices, SMA connector will be soldered on the top side of PCB (same as before) and on the bottom side of PCB (performed additionally).
Product release date First half of September 2021
Affected products
Model Affected order codes Order code changes
FMM640 FMM640******* SMA soldering changes
Change impact
Risk assessment Due to THT assembly process, some devices might have an excess amount of soldering on the SMA connector.
This does not affect GSM/GNSS antenna characteristics and does not interfere with device case assembly, therefore, device functionality remains unchanged.
400 x 400px
Suggested implementation plan No implementation plan needed
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

2021.08.03: Upgraded casing

We would like to inform you, that FMM640 device case will be updated in the factory by the end of August 2021.

Change description
Change type External/visual
Detailed description


Old version:
400 x 400px
New version:
400 x 400px
Change reasons/Description Changes are made only in internal part of the case:.
1. Additional ribs added to battery guard walls
2. A third section of the wall added
Changes are made to ensure easier and more sufficient manufacturing process of the case itself - change has no effect on device functioning.
Product release date End of August 2021
Affected products
Model Affected order codes Order code changes
FMM640 FMM640******* New casing
Change impact
Risk assessment No risk factors encountered with this change
Suggested implementation plan No implementation plan needed
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


2021.05.26: Base firmware update

We would like to inform you about the base firmware update for FMM640 starting from May 26 2021. New production firmware version will be 01.00.13.

Change description
Change type Firmware update
Detailed description Key improvements from last production firmware are listed in errata: https://wiki.teltonika-gps.com/view/FMM640_firmware_errata
Old version:
FMM640 01.00.05
New version:
FMM640 01.00.13
Change reasons FMM640 base firmware version update
Product release date Second half of June 2021.
Affected products
Model Affected order codes Order code changes
FMM640 FMM640*******order codes with base Firmware Update firmware
Change impact
Risk assessment Client's special firmware versions or order codes with special firmware will not be updated to latest base firmware automatically. During the transition period clients might receive devices with previous Firmware version used in manufacture.
Suggested implementation plan If you are using special firmware version and would like an upgrade to new features of latest base firmware, please contact your Teltonika sales manager
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


2021.05.18: New material and design changes on the device casing

We would like to inform you, that FMM640 device case will be updated in the factory on first half of June 2021.

Change description
Change type External/visual
Detailed description


Old version:
400 x 400px
New version:
400 x 400px
Change reasons/Description 1. New material unifies the device design across all platforms.
2. LED indentations improve Dust/Water resistance - LEDs are visible through thin layer of material.
3. New battery guard ensures battery placement during device transportation and usage.
Product release date First half of June 2021
Affected products
Model Affected order codes Order code changes
FMM640 FMM640******* New casing
Change impact
Risk assessment No risk factors encountered with this change
Suggested implementation plan Small indentation on top of USB socket will allow you to identify the cases quicker
FMX640 case indedntation blue.png
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

2020.11.24: GNSS antenna changes

We would like to inform you about the GNSS antenna changes for FMM640 starting from late December 2020 - early January 2021.

Change description
Change type Mechanical part changes
Detailed description
Old version: GNSS 2 4 .png


Dimensions - 45.2x35.8x15.1 mm
Center frequency - 1575.42 MHz, 1600 MHz
Bandwidth - 10 MHz
VSWR on bandwidth - <1.5
GAIN - 3 dB
LNA minimum gain - 26 dB
LNA maximum gain - 30 dB
Consumption - 11 mA

New version: GNSS 2.5 .png


Dimensions - 46x44x13 mm
Center frequency - 1575.42 MHz, 1602 MHz
Bandwidth - 35 MHz
VSWR on bandwidth - <1.9
GAIN - 3 dB
LNA minimum gain - 26.5 dB
LNA maximum gain - 29.5 dB
Consumption - 9 mA

Change reasons According to technical comparison new antenna is better by next parameters: center frequency, bandwidth, consumption. Other parameters are the same. Moreover, the new antenna is thinner, which gives the opportunity to mount it, where it was not possible before and makes installation easier.
Product release date Late December 2020 - Early January 2021
Affected products
Model Affected order codes Order code changes
FMB640 FMM640*******order codes No changes
Change impact
Risk assessment No risk factors encountered with this change
Suggested implementation plan No implementation plan needed

2020.10.26: Base firmware update

We would like to inform you about the base firmware update for FMM640 starting from October 26th, 2020. New production firmware version will be 01.00.05.

Change description
Change type Firmware update
Detailed description Key improvements from last production firmware are listed in errata: https://wiki.teltonika-gps.com/view/FMM640_firmware_errata
Old version:
FMM640 00.03.74.T112
New version:
FMM640 01.00.05
Change reasons FMM640 base firmware version update
Product release date 2020 October 26th.
Affected products
Model Affected order codes Order code changes
FMM640 FMM640*******order codes with base Firmware Update firmware
Change impact
Risk assessment Client's special firmware versions or order codes with special firmware will not be updated to latest base firmware automatically
Suggested implementation plan If you are using special firmware version and would like an upgrade to new features of latest base firmware, please contact your Teltonika sales manager
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

2020.10.14: Top Marking Changes

Change description
Change type External/visual
Detailed description Top label design changed
Old version:
FMM640 4000x4000 1.png

New version:
FMM640 00.png

Change reasons

Added E-Mark approval marking. (More information: FMM640 E-Mark)
Added CE approval marking. (More information: FMM640 CE/RED)

Product release date Planned date: 2020 October 14th
Affected products
Model Affected order codes Order code changes
FMM640 FMM640****** No changes
Change impact
Risk assessment Risk assessment for devices management required
Suggested implementation plan No implementation plan needed
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