[YMCS/YDMP Free Trial Program]Yealink would like to offer Free Trial Program of Yealink device management service for our current eligible customers. You can see the details below.

Post Reply 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
T28P - Power LED won't turn off
Author Message
Yealink_Michael Offline

Posts: 382
Joined: Jul 2015
Reputation: 1
Post: #9
RE: T28P - Power LED won't turn off
Dear Bill

thanks for your information

for your question , out R&D has investigated and here is the solution

1. loginto the web page of the phone and export the syslog to server , for details , refer to the file attached
2. open wireshark and start to capture , for details , refer to the file attached and you can download the wireshark tool from this link :

3. disconnect all the network cable of the phone
4. long press the OK key for at least 5 seconds and then press again to reset the factory
5. after the phone boot up , connect the network cable and check whether the Power LED is always on
6. register an account and see whether the power led is always on

if the issue still exist , please kindly provide the syslog from server and pcap file from wiresahrk and the config file from phone to us again , we will follow up.



Attached File(s)
.pdf  How to use Wireshark.pdf (Size: 230.6 KB / Downloads: 2)
.pdf  export the syslog to the server.pdf (Size: 1.14 MB / Downloads: 3)
08-15-2015 09:41 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 

Messages In This Thread
T28P - Power LED won't turn off - bcdaus - 07-31-2015, 04:11 PM
RE: T28P - Power LED won't turn off - Yealink_Michael - 08-15-2015 09:41 AM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  T28P foward call doesn´t work with Tato 4 5,505 09-14-2020 03:49 PM
Last Post: complex1
Lightbulb Yealink T28P Firmware Upgrade Fails Michelth 11 41,990 06-27-2020 10:13 AM
Last Post: complex1
  T28P LDAP Problem oguzhan 1 4,722 06-10-2020 01:14 PM
Last Post: beldimon
Exclamation T28P Handset Noise Problems fdtcloud 18 45,354 01-14-2019 04:23 PM
Last Post: dtgriscom
  Random 'wake up' when in Power saver/screensaver mode Pipe 8 8,844 05-17-2018 02:25 PM
Last Post: Pipe
  [BUG?]Screen backlight turn on on SIP Keep alive Kaya84 9 16,961 03-29-2018 08:27 PM
Last Post: Travis_Yealink
  T21P E2 and power adapters Mauro 3 6,048 03-07-2018 09:25 AM
Last Post: Aishion_Yealink
  T28P Ringtones V2.70 Starlifter 22 90,856 11-29-2016 01:47 PM
Last Post: Psilverwood
  SIP-T28P Can't Answer Multiple Incoming Calls Trutelecom 1 5,542 08-31-2016 05:10 AM
Last Post: Trutelecom
  T28P firmware thankappas 1 5,174 04-27-2016 05:33 PM
Last Post: Karl_Yealink

Forum Jump:

User(s) browsing this thread: 1 Guest(s)

Contact Us   Yealink   Return to Top   Return to Content   Lite (Archive) Mode   RSS Syndication