I am requesting urgent assistance with obtaining an older firmware file for my RUT525 WiMAX router.
**The Problem:**
My device lost all WiMAX functionality and modem drivers after I updated the firmware to the latest available version for the RUT5XX series: **RUT5XX_R_01.00.875**. The WiMAX section now displays “N/A” (I have attached a screenshot).
**The Solution Required:**
The router was working perfectly on the older version: **RUT5XX_R_01.00.819.bin**. Since this file is no longer available on the official downloads page, I need this specific file to perform a downgrade (firmware recovery) and restore WiMAX functionality.
**Device Specifications:**
* **Model:** RUT525
* **Product Code:** G30044
* **Hardware Rev:** 1.1
Could a Teltonika representative or a community member who has a copy of **RUT5XX_R_01.00.819.bin** please provide a secure download link?
Thank you for the warning regarding sharing sensitive information; I have removed the serial numbers from the public post.
**Regarding the form:** I have checked my spam/junk folders multiple times and **I have never received the actual form file or link.** I have only received the two email notifications stating that the form was sent.
Since you already have my device details (Model: RUT525, SN: 04703058), please send me the **RUT5XX_R_01.00.819.bin** firmware file, or contact me at **abozeyd91@gmail.com** to send the file immediately.
Thank you for the warning regarding sensitive information. I confirm that I have **removed the serial numbers and MAC addresses** from the public post to ensure safety.
**Regarding the form:** I have checked my spam/junk folders multiple times and I have **never received the actual form file or link**, despite your efforts to re-send it. I have only received the email notifications.
This issue is for **Ticket/Topic ID: 16223**.
Since the standard recovery (TFTP) failed and I cannot access the device, I am proceeding with the **Serial Console Recovery** as the final option. I have prepared PuTTY and the hardware.
**I urgently need you to send the following THREE critical items directly to my email: abozeyd91@gmail.com:**
1. The firmware file: **RUT5XX_R_01.00.819.bin**.
2. The **exact U-Boot commands** and memory addresses required to flash the RUT525 via the serial connection (to use in PuTTY).
3. The **pinout diagram** for the RUT525 serial port for safe connection.
I cannot proceed with the repair without this essential information. Thank you for your urgent cooperation.