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+--- Thread: Unable to upgrade firmware (/showthread.php?tid=41539)



Unable to upgrade firmware - bluetel - 02-14-2018 01:25 PM

Hello

we encoured problem. It's unable to upgrade firmware. Phone reboot and it's the same firmware.
35.80.9.4

we want to install the last

Tks


RE: Unable to upgrade firmware - complex1 - 02-14-2018 03:22 PM

(02-14-2018 01:25 PM)bluetel Wrote:  Hello

we encoured problem. It's unable to upgrade firmware. Phone reboot and it's the same firmware.
35.80.9.4

we want to install the last

Tks

Hi,

A possible cause:
Your phone is locked to the VoIP provider and they decide the firmware release.

E.g. you upgrade the firmware and after the reboot, the phone check for new firmware and the provider downgrade the firmware.

Please check if the phone is locked to the provider.

Hope this will help.


RE: Unable to upgrade firmware - bluetel - 02-14-2018 03:28 PM

(02-14-2018 03:22 PM)complex1 Wrote:  
(02-14-2018 01:25 PM)bluetel Wrote:  Hello

we encoured problem. It's unable to upgrade firmware. Phone reboot and it's the same firmware.
35.80.9.4

we want to install the last

Tks

Hi,

A possible cause:
Your phone is locked to the VoIP provider and they decide the firmware release.

E.g. you upgrade the firmware and after the reboot, the phone check for new firmware and the provider downgrade the firmware.

Please check if the phone is locked to the provider.

Hope this will help.

Hello

tks for reply.

I do hard reset, and next upgrade ...
where i can see that you said remotly ?


RE: Unable to upgrade firmware - complex1 - 02-14-2018 09:18 PM

(02-14-2018 03:28 PM)bluetel Wrote:  
(02-14-2018 03:22 PM)complex1 Wrote:  
(02-14-2018 01:25 PM)bluetel Wrote:  Hello

we encoured problem. It's unable to upgrade firmware. Phone reboot and it's the same firmware.
35.80.9.4

we want to install the last

Tks

Hi,

A possible cause:
Your phone is locked to the VoIP provider and they decide the firmware release.

E.g. you upgrade the firmware and after the reboot, the phone check for new firmware and the provider downgrade the firmware.

Please check if the phone is locked to the provider.

Hope this will help.

Hello

tks for reply.

I do hard reset, and next upgrade ...
where i can see that you said remotly ?

Hi,

You can’t see it, you have to ask your provider if they can manipulate your phone firmware.
Maybe Yealink people (not me) can help you, but they are now away to celebrate Chinees Holiday.


RE: Unable to upgrade firmware - bluetel - 02-26-2018 01:27 PM

hello

we are provider and IPBX is 3cx Big Grin
so we are blocked yet.


RE: Unable to upgrade firmware - Evan_Yealink - 03-02-2018 02:11 PM

(02-14-2018 01:25 PM)bluetel Wrote:  Hello

we encoured problem. It's unable to upgrade firmware. Phone reboot and it's the same firmware.
35.80.9.4

we want to install the last

Tks

Dear Customer,

Sorry for late reply. This is Evan, how are you recently?

I think I have answered this question for you yesterday on our ticket system.

As I said before, this is firmware is a special firmware, it has some special customization and settings on the phone. So for this issue, please contact the phone provider for help.

Note that: And the special method can only provider to our distributor or reseller , please don't share them to your end user. Thanks for your understanding.

Best Regards,
Evan You