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T48G stops working after firmware update
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cmariotti Offline
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Post: #1
T48G stops working after firmware update
Phone originally running 35.73.0.50.rom

Prior to upgrade, multiple extensions to multiple asterisk servers working (this is a test phone)... connection is via router based site-to-site OpenVPN connection.

Upgraded to 35.80.0.70
After upgrade, no lines are registering. "unknown uri scheme".

Any idea why it would work before the update and then not work after?
01-10-2016 11:54 PM
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Karl_Yealink Offline
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Post: #2
RE: T48G stops working after firmware update
Here is the latest firmware: http://support.yealink.com/attachmentDow...0.0.70.zip

Please upgrade to the latest firmware and test again, if it can't work, please reset the phone and test again.
01-11-2016 06:07 PM
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cmariotti Offline
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Post: #3
RE: T48G stops working after firmware update
It already is:

Firmware Version 35.80.0.70
Hardware Version 35.1.0.0.0.0.0

(01-11-2016 06:07 PM)Yealink_Karl Wrote:  Here is the latest firmware: http://support.yealink.com/attachmentDow...0.0.70.zip

Please upgrade to the latest firmware and test again, if it can't work, please reset the phone and test again.
01-12-2016 12:42 AM
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Karl_Yealink Offline
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Post: #4
RE: T48G stops working after firmware update
Suggest that you can reset the phone and test again, you can press the OK button about 10 sec to reset the phone.
If it can't fix the issue, please help us to get the PCAP and syslog and config files, we can check something from them.
You can get more info from the link: http://forum.yealink.com/forum/showthread.php?tid=1319 

Here are something want to confirm:
1. Can you ping the phone succeed?
2. Can you take incoming call or outgoing call?
3. Can you register succeed?
4. What condition will the "unknown uri scheme" occur?

You can email the files to me(karl@yealink.com), if you don't want the files public.
01-12-2016 04:15 PM
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