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In case the phone crashed and can't boot up successfully. Flash memory data destroyed. Then you can use the following procedure to install the latest firmware in the device.
To download the latest firmware, please go to our Product pages. Release Notes page

Using the reset button at the bottom of the device

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Press "Yes" to enter the Rescue mode. You will see the following text on the display:
 

User-added imageImage Removed 

Image Added


Waiting for upgrade

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Now you can install new software using TFTP . Your Computer should be in the same Network like the phone (192.168.15.x)

On Windows

  • Open a "DOS-box"
  • go to the DIR where the Firmware is located
  • TFTP
    tftp -i
    PHONE
     <PHONE-IP-address> PUT filename.
    IMG
    img
      

On MAC

  • Open a Terminal
  • Firmware file has to be in users home-DIR
  • tftp
  • connect 192.168.15.1
  • binary
  • rexmt 1
  • timeout 60
  • put <filename.img>

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