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TRB 140 FW CONNECTION ERROR AFTER UPDATE

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287 views 2 comments
by anonymous
I have TRB140003000 and updated the FW to TRB1400_R_00.01.03 as this version matches the profile I am using. After the update, the LAN connection stopped working and I cannot install another FW. I have a connection to the device via USB, but when I run TRB in safe mode to run UBI recovery files, the connection disappears. How to install new FW?

1 Answer

0 votes
by anonymous

Hello,

Below is the device recovery procedure. If this recovery method does not help, you may need to send the device to warranty for repair. The warranty process is described here.

1. Turn off/unplug TRB140.

2. Press and hold reset button, at the same time plug the power cable and keep holding reset button for about 5 seconds (mobile signal LED's should start blinking).

3. Download "ADB software" and "rootfs.ubi" file from here: https://kaunas.teltonika.lt:444/f/a9ffe2e9d98446f2aaf3/?dl=1.

4. Install ADB software

5. Place rootfs.ubi file in any easily accessible directory (e.g. in "C:\Test")

6. Open CMD ("Command Prompt" window) with administrator rights

7. Use cd command to navigate to the place where you saved the rootfs.ubi file (Example: cd C:\Test)

8. Then use this command: fastboot flash rootfs_a rootfs.ubi

9. When it completes, use this command: fastboot flash rootfs_b rootfs.ubi

10. When both commands are executed and finished running, unplug power from TRB and plug it again. It should boot up as normal

11. Install intermediate firmware version, which can be downloaded from here:

https://wiki.teltonika-networks.com/view/TRB140_Legacy_FW_Upgrade_Instructions.

12. Install desired firmware version to TRB through WebUI. Latest firmware can be downloaded from here: https://wiki.teltonika-networks.com/view/TRB140_Firmware_Downloads.

Best regards,

by anonymous
Hi ZygimantasBliu,
Seems you replied to my post but I can't find the comment(?)
I have the same model, 140003000 - I downloaded the files above and used adb to send the files to the TRB140.
Now it only blinks 4 times on all signal bars, then single blink on the 4th bar, then again 4 times... and so on.
I cannot connect to it, it doesn't give out IP...
I think you tried to offer me some files by a link?

by anonymous
Could you please help me with needed files to flash rootfs_a, rootfs_b, boot_a & boot_b for my TRB140 (140003000)?