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==Upgrade==
==Upgrade==
Firmware upgrade process via Fastboot requires only few simple steps:<br />
Firmware upgrade process via Fastboot requires only few simple steps:
#Download the appropriate 2 files for TRB1_R_00.07.05.3: kernel (kernel.img) and rootfs (rootfs.ubi) These files need to be extracted according to the device's product code. can be downloaded from here: [https://kaunas.teltonika.lt:444/d/376f07e6f2b5495ebc4b/ kernel.img and rootfs -rootfs.ubi]
#<li>Download the necessary files for TRB1_R_00.07.05.3: kernel.img and rootfs.ubi. These files need to be extracted according to the '''device's product code'''. You can download them from the following link: [https://kaunas.teltonika.lt:444/d/376f07e6f2b5495ebc4b/ kernel and rootfs].</li>
#Download and Install [https://kaunas.teltonika.lt:444/f/a9ffe2e9d98446f2aaf3/?dl=1 ADB software]
#<li>Download and Install [https://kaunas.teltonika.lt:444/f/a9ffe2e9d98446f2aaf3/?dl=1 ADB software].[[File:11111.png|border|class=tlt-border]].</li>
[[File:11111.png|border|class=tlt-border]]
#<li>Press and hold the reset button, then simultaneously plug in the power cable while continuing to hold the reset button for approximately 5 seconds (until the mobile signal LEDs start blinking).</li>
#<li>Connect TRB14XX via USB cable to your computer.</li>
#<li>Place the downloaded files in an easily accessible directory (e.g., '''"C:\Test"''').</li>
#<li>Open '''CMD''' with admin rights. Use the '''cd''' command to navigate to the directory where you saved the ''kernel.img'' and ''rootfs.ubi'' files (Example: '''cd C:\Test''').</li>
#Use cd command to navigate to the place where you saved the rootfs.ubi file (Example: '''cd C:\Test''').
#Use cd command to navigate to the place where you saved the rootfs.ubi file (Example: '''cd C:\Test''').
#Then use this command: '''fastboot devices'''.
#Then use this command: '''fastboot devices'''.