Firmware update from 3CX portal to Yalink T42S not working

[rshahriar]

Hi
We are having an issue in one of our site, YalinkT42S phone sets (all sets are T42S) are not updating firmware if I push from 3CX portal.
3CX system showing phones firmware not supported but cannot help with push firmware update.
Even if I try to manually update the firmware not worked.
I tried to factory reset and then again to update the firmware not working.
Our 3CX version is profesional 16.0.6, hosted on-premesis in a windows 10 computer and YelinkT42 firmware stuck at 66.84.0.95

Thanks in advance

 

[cobaltit]

https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/

You haven't mentioned where the phones are in relation to 3CX which plays a role in where the problem is. But if factory resetting the phones and then manually updating isn't working, then this doesn't sound like a 3CX issue. I'd make sure you are doing everything properly as outlined here and then go to the Yealink forums for help.

 

[rshahriar]

Hi Cobaltit,
Thanks for your response.
The phones are related to 3CX system as these phones are serving as extension.
And from 3CX phoen system portal push firmware update to these phones are not working.

 

[cobaltit]

I tried to factory reset and then again to update the firmware not working.

If this doesn't work, why would you think it's a 3CX issue. Unless you are saying you factory reset the phone and then re-provisioned it and then tried to update via 3CX. If so, then follow the 3CX guide I linked for the manual firmware update steps. If that does work, then you 'might' have a 3CX issue.

 

[rshahriar]

Hi cobaltit
I am not perticularly thinking this is 3CX issue but yes definately 50% 3CX issue as 3CX push firmware update not working too.
If anyone has the same issue and resolve it can share me their experience.
I tried both the way you mentioned several times before posting here but no luck.
Thanks again!

 

[rshahriar]

I got this solution from another discussion forum and worked for me:

We are using 3CX and have recently updated 3CX to version 16. We have several Yealink phones that are on version x.83.0.55 firmware and 3CX states that this version is unsupported. When I attempt to update the phones to a more current firmware, I get a firmware update failed message. To troubleshoot the issue, I have tried both upgrading and downgrading the firmware but, it fails every time. Phone models that we have this issue with are T41S and T21P_E2.

Anyone else have this issue (and possibly a solution)?

Thanks.

I'm having this issue right now. Did you get it resolved?

Yes. See the previous reply from mujizac.

I did see that. However, that solution didn't work for me. As it turns out, 3cx was downgrading the firmware back to 66.83.0.55 after I manually updated it to 66.84.0.35. I had to first use 3cx to upgrade the firmware, which it wouldn't do but it would provision it to receive it after the 84.0.35 upgrade was manually done.

I would try the following in order:
1) Remove the phone from the extension within 3CX (so 3CX does not try to automatically provision the phone).
2) Do a factory reset of the phone (by holding down the OK button for a few seconds, and then the display will appear warning "Reset to Factory", press OK again to confirm the reset.)
3) Manually load the 66.84.0.35 firmware.
4) Update to whatever firmware version you are trying to go to.
5) Add the phone to the extension and re-provision.