Can't factory reset T48S

[kinetic4]

I have a Yealink T48S that I need to reset but can't. The OK button seems to work fine for other things but when I hold it down for a long time to get a factory reset the message to reset never comes up. Also, I don't know the client password to login with the browser. The firmware is 66.81.0.103. What can I do to reset?

 

[Alphabetic]

• Press and hold Speaker button
• Turn phone off and on with speaker button held down until you see IP details
• When you see IP details press OK - It will say starting update (dont wait)
• Restart the phone again as normal
• Use GUI to update FW with default details

 

[kinetic4]

Thanks, that helps me make some progress. On the 2nd step, when the phone comes back on; I have the choice of TFTP or USB.
When I select TFTP I can change the IP address info which is progress but the phone still comes back up otherwise configured as before. The IP is changed but I still haven't factory reset the phone and I can't get into it.

 

[Alphabetic]

Then you can always reach out to Yealink [email protected].

 

[Alphabetic]

is this phone configured on your existing system or another?

 

[kinetic4]

is this phone configured on your existing system or another?

For another system, I bought it used.

 

[kinetic4]

I see now, I have to get the proper files, setup a tftp server and restore it that way, right?

 

[simply7]

yes this is correct. I use PumpKIN TFTP and is easy to use. Just a few tips if you have never used it before. Once installed, create a folder on your c:\ drive called TFTP. Open the program and click on options. Set your settings as below and put your files in the c:\tftp directory. Find your IP of you PC and then use that on the phone for TFTP server IP.

 

[kinetic4]

Excellent, thanks. I'll let you know how it goes.

 

[kinetic4]

Excellent, thanks. I'll let you know how it goes.

I won't be getting this done right away. I've not found the .bin and .rfs files for download so I've submitted a ticket to Yealink, they have an announcement on their website that they are closed until Feb 1 for the Chinese new year.

 

[FS_Mathieu]

I take this opportunity to ask you guys if you know another wait to contact Yealink other than mail or Chinese number x)

Thanks

 

[kinetic4]

This is so frustrating. They changed their return date from Feb 1st to Feb 10th but then they responded on the 4th. They say I need to get the files from the "phone provider". I could do the TFTP update procedure but it seems I'm stuck without those two files.

 

[FS_Mathieu]

And your phone provider is unable to help you ?

 

[Alphabetic]

Here you go

https://drive.google.com/drive/folders/0By_uJpOr3h2YMmRSeWgxbndEc1E

There is also a PDF instruction guide if you go up a level.