New Forum system requires email address which you used to apply for your account to replace your original username. Password stays the same.Please see this post for more details
http://forum.yealink.com/forum/showthread.php?tid=40344

Yealink Test Club has been officially launched. Please visit post below to get detail information. Come and join us!
http://forum.yealink.com/forum/announcements.php?aid=18

We just had the YMCS online and we are also working on the features plan on the future versions, in this regard we are need to hear your voice about the YMCS.
Please visit : http://forum.yealink.com/forum/showthread.php?tid=42322


Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
T48S after Firmware update to 66.9.0.80 no Downgrade possible?
Author Message
thomas.hauff Offline
Junior Member
**

Posts: 16
Joined: May 2019
Reputation: 0
Post: #1
T48S after Firmware update to 66.9.0.80 no Downgrade possible?
Hi all,

we want to update one of our T48S (SfB) devices to 66.9.0.80.
According to the firmware changelog (page 3)Changelog,

a downgrade is not possible anymore.
What exactly does the whole text mean in the changelog? Shall we prefer the previous version 66.9.0.78? Are there other limitations with version 66.9.0.80?
Thanks and regards
Thomas
06-24-2019 01:33 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 


Messages In This Thread
T48S after Firmware update to 66.9.0.80 no Downgrade possible? - thomas.hauff - 06-24-2019 01:33 PM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  T42G with firmware T42-29.83.0.120.rom compsos 1 276 02-03-2020 07:48 PM
Last Post: complex1
  T48s - delete ringtone via UI / Web Toto 9 577 01-16-2020 07:36 PM
Last Post: complex1
  cannot upgrade or downgrade from x.83.0.55 firmware kenhoosen 8 3,095 12-02-2019 09:07 PM
Last Post: kenhoosen
  Yealink T48S with Cisco Switch (SG350 ; C3750X) - Qos rumak18 1 374 11-13-2019 09:28 PM
Last Post: jolouis
  Yealink T48s Logout automatically guendfi 0 331 10-30-2019 02:09 PM
Last Post: guendfi
  Root access to a T46S or T48S Alith7 0 384 10-28-2019 05:25 PM
Last Post: Alith7
  T48S/G dial plan sprintership 8 1,047 10-21-2019 01:02 PM
Last Post: jolouis
  Need to remove custom Fonality firmware 1CCT 8 4,047 09-09-2019 07:12 PM
Last Post: MongoTEL_Support
  T48G or T48S Disable dislpad when off-hook RRC_Support 1 614 08-30-2019 09:03 AM
Last Post: Jacky_Yealink
  Voice vlan IPv6 addresses appearing on PC on T48S danzoom 1 536 08-01-2019 09:48 PM
Last Post: danzoom

Forum Jump:


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

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