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<span class="asterisk">*</span><b>Latest FW</b> - Firmware candidate for release. This version will usually contain some new features and/or improvements (described in the Change log section of this article) but it hasn't been fully tested and approved by Teltonika's testing and technical support units

<span class="asterisk">*</span><b>Latest FW</b> - firmware candidate for release. This version will usually contain some new features and/or improvements (described in the Change log section of this article) but it hasn't been fully tested and approved by Teltonika's testing and technical support units

<span class="asterisk">**</span><b>Factory FW</b> - newest Firmware in mass production

<span class="asterisk">**</span><b>Factory FW</b> - firmware used in mass production

<span class="asterisk">***</span><b>Bootloader</b> - a program that loads the operating system or some other system software for the router after completion of the power-on self-tests; it is the loader for the operating system itself. You can find detailed instructions on how to upgrade your Bootloader to a newer version '''[[RUT2xx Bootloader Upgrade|here]]'''

<span class="asterisk">***</span><b>Bootloader</b> - a program that loads the operating system or some other system software for the router after completion of the power-on self-tests; it is the loader for the operating system itself. You can find detailed instructions on how to upgrade your Bootloader to a newer version '''[[RUT2xx Bootloader Upgrade|here]]'''