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T42G - Impossible to upgrade firmware
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psanmartin Offline
Junior Member

Posts: 3
Joined: Aug 2018
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Post: #6
RE: T42G - Impossible to upgrade firmware
(08-22-2018 12:27 PM)complex1 Wrote:  
(08-22-2018 11:29 AM)psanmartin Wrote:  
(08-22-2018 08:28 AM)complex1 Wrote:  
(08-21-2018 07:46 AM)psanmartin Wrote:  Hi all,

I have tried to update my T42G firmware and I can't. My steps:
- Download firmware from

- Access to phone web page Settings - Upgrade and put the updated firmware and Upgrade

All looks like normal (i can see updating firmware on phone display) but after reboot firmware doesn't upgrade. Have anyone any idea?

I have checked with some firmwares with the same result.

Model: Yealink T42G
Versión Firmware:
Versión hardware:



It looks like your phone is running on customized firmware (, what’s why the upgrade failed.
Please contact your reseller or provider and ask them to help you.

Hope this will help.

Thanks for your answer. Unfortunately, we haven't any way to contact with our provider Sad . So, do you know if there is any way to reset phone to any standard version?


I can’t help you any further. Sorry about that.
Please find out who is the distributor of your country and ask them if they are willing to help or sent a mail directly to Yealink Support or submit a support ticket.

Hope this will help.

Thanks. I'll analize options.
08-22-2018 01:24 PM
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RE: T42G - Impossible to upgrade firmware - psanmartin - 08-22-2018 01:24 PM

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