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version |   date   | author  | comments
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  0.1   | 23/10/26 | David M | initial release
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There is a method of reinstalling the firmware using the microSD card slot (labelled TF CARD) on the front of the ANT-37500D.

Before proceeding with the RMA process, please could you try the following firmware recovery procedure?

1. Download the required files
  1.1. Download the SD recovery image file, sd-recover-3.6.8.img.gz from the folder 
  https://downloads.antrica.com/Decoders/ANT-37500/Firmware/Current-Firmware/ANT-37500_Firmware_3.6.8/SDcard-recovery_method/ 
  1.2. Download balenaEtcher, a utility used to write (flash) image files to SD cards.

2. Install balenaEtcher and familiarise yourself with the flashing process
  2.1. Download and install balenaEtcher from the following link, or obtain it from the official website. 
  https://downloads.antrica.com/Decoders/ANT-37100/Firmware/Current-Firmware/balenaEtcher-Setup-1.5.115.exe 
  2.2. Instructions for using balenaEtcher are available in the following videos:
	Detailed video: https://www.youtube.com/watch?v=ijFocUagknI 
	Short video: 
https://downloads.antrica.com/Decoders/ANT-37100/Firmware/Current-Firmware/How_to_flash_to_SDcard_or_USB_using_BalenaEtcher.mp4 

3. Prepare the microSD card
Using balenaEtcher, flash the sd-recover-3.6.8.img.gz recovery image onto the microSD card.

4. Power off the ANT-37500D
Ensure that the ANT-37500D is completely powered off before inserting the microSD card.

5. Insert the microSD card
Insert the prepared microSD card into the TF CARD slot on the front of the ANT-37500D.

Important: The contacts on the microSD card must face upwards. Take care to ensure that the card enters the slot correctly and 
does not slide underneath the card holder.

6. Connect the equipment and power on
Connect a monitor and an Ethernet cable to the ANT-37500D, then power on the unit.

7. Allow the recovery process to complete
Wait for up to 6 minutes for the firmware recovery process to complete.

A message may appear on the connected monitor indicating that it is safe to remove the microSD card.

8. Remove the microSD card
Once the recovery process has completed, remove the microSD card while the ANT-37500D is still powered on.

9. Allow the ANT-37500D to restart
The ANT-37500D should then reboot and restart using the recovered firmware.