[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.
https://www.yealink.com/ydmp-freetrial-2020


Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
cannot upgrade or downgrade from x.83.0.55 firmware
Author Message
kenhoosen Offline
Junior Member
**

Posts: 6
Joined: Aug 2017
Reputation: 0
Post: #5
RE: cannot upgrade or downgrade from x.83.0.55 firmware
(10-23-2019 08:42 PM)mujizac Wrote:  I am having this issue! I think I found a fix. Grab the 66.84.0.35 firmware, flash to that first.
https://downloads.3cx.com/downloads/v160...4.0.35.rom

From there it's looking like it's accepting the .95

I've had something like this before, but this one was super crap. It took looking at another install and seeing what firmware those phones where on.

That worked! Thank you!
10-23-2019 09:40 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 


Messages In This Thread
RE: cannot upgrade or downgrade from x.83.0.55 firmware - kenhoosen - 10-23-2019 09:40 PM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Firmware Upgrade T46S not working SamSam 2 350 05-06-2024 01:01 AM
Last Post: SamSam
  newest firmware for T4XS units causes bootup loop davedogmoore@gmail.com 0 1,001 01-21-2024 03:44 PM
Last Post: davedogmoore@gmail.com
  SIP-T46G Need firmware update instructions RobbyK 2 1,480 01-11-2024 10:52 PM
Last Post: RobbyK
  Firmware T42s Raimundo 1 1,748 11-23-2023 06:45 PM
Last Post: Darsh
  T41S FIRMWARE 66.9.0.80 vers 66.86.0.5 DANJEAN 1 2,206 08-23-2023 01:00 AM
Last Post: complex1
  Yealink SIP-T40P Firmware UnitedTech_Support 1 2,329 05-05-2023 08:07 PM
Last Post: complex1
  T48U Custom Firmware Upgrade to Official Friendly 0 2,151 03-29-2023 01:20 AM
Last Post: Friendly
  Yealink T41S firmware kosif 0 2,189 12-19-2022 08:52 AM
Last Post: kosif
  T46S will not upgrade 79schultz 1 2,499 10-12-2022 03:11 AM
Last Post: complex1
  T42S unable to update firmware brianstoiber 6 8,579 09-30-2022 05:31 PM
Last Post: complex1

Forum Jump:


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

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