Integration Manual
TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R04 Advance Information System description
Page 53 of 141
The use of hybrid positioning requires a connection via the DDC (I
2
C) bus between the TOBY-L2 series cellular
module and the u-blox GNSS receiver (see sections 1.9.3 and 2.6.3).
See GNSS Implementation Application Note [13] for the complete description of the feature.
u-blox is extremely mindful of user privacy. When a position is sent to the CellLocate
®
server u-blox is
unable to track the SIM used or the specific device.
1.15.12 Firmware update Over AT (FOAT)
This feature allows upgrading the module firmware over USB / UART serial interfaces, using AT commands.
The +UFWUPD AT command triggers a reboot followed by the upgrade procedure at specified a baud rate
A special boot loader on the module performs firmware installation, security verifications and module reboot
Firmware authenticity verification is performed via a security signature during the download. The firmware is
then installed, overwriting the current version. In case of power loss during this phase, the boot loader
detects a fault at the next wake-up, and restarts the firmware download. After completing the upgrade, the
module is reset again and wakes-up in normal boot
For more details about Firmware update Over AT procedure see the Firmware Update Application Note [4] and
the u-blox AT Commands Manual [3], +UFWUPD AT command.
1.15.13 Firmware update Over The Air (FOTA)
Firmware update Over The Air (FOTA) is not supported by TOBY-L2x0-00S and MPCI-L2x0-00S.
This feature allows upgrading the module firmware over the LTE/3G/2G air interface. The main idea with
updating Firmware over the air is to reduce the amount of data required for transmission to the module. This is
achieved by downloading only a “delta file” instead of the full firmware. The delta contains only the differences
between the two firmware versions (old and new), and is compressed.
For more details about Firmware update Over The Air procedure see the Firmware Update Application Note [4]
and the u-blox AT Commands Manual [3], +UFOTA AT command.