Keep holding this button down until you are presented with a screen as shown below. While holding this button down, either plug in the power adapter or reinsert your PoE cable. Step 1: With your device off, press and hold down on the speakerphone button. Once this is done you can click OK to save your changes and you are ready to move on to the next step.ĭepending upon what device you are going to be recovering, this process will deviate slightly.

You will also want to ensure that you change the read request behavior to give all files and the write request behavior to take all files, so that way the TFTP program will know to allow the phone to request all of the files it is looking for in that folder.

On this screen, you are going to want to set the TFTP filesystem root to the folder that you downloaded the files from above in, in this examples case, they are located in a TFTP folder that is on my desktop. Now, you are going to want to hit the options button and you will be presented with a screen as shown below. Once downloaded from the link above, allow PumpKIN to install and then open it once it is installed. The process to setup your TFTP server is not overly difficult. Make sure that you have downloaded all the files in your devices folder, the process will not be successful if you have not acquired all of the files necessary for your device.

Download these files and place them in a folder that you will have easy access to. All rom files can be obtained from the yealink website.įrom here, you can navigate to the folder for the device that you will be trying to recover, inside of that folder you will find all of the files necessary to perform the TFTP recovery on that device. So for example, if your device is a T46U you would rename your rom file to T46U.rom. You will be able to find the necessary recovery files for your device at the following URL Yealink Support. We will be using the PumpKIN TFTP Server in this guide but you can substitute this with a TFTP program of your choice, however the guide will not be covering how to configure those.Set-up Guide: In order to proceed with this process and be able to successfully perform the TFTP recovery, you are going to need: If you find that your device fits into any of these categories, the TFTP recovery can be performed it will reflash the firmware on the device in the case of a corrupt firmware and if successful, will allow your device to fully boot again. However, it can also be useful on a device where a factory reset does not seem to be resetting the device correctly. This process is most useful in the scenario that a phone either gets stuck in a boot loop, or stays on a Welcome Initializing.Please Wait screen. Overview:Also known as a Recovery Mode Update, the TFTP process can be used to save what can be seen as an otherwise dead phone.

Tftp boot recovery software