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Yealink Forums » IP Phone Series » T4x Series » EHS36 Not answering / upgrade

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EHS36 Not answering / upgrade
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lonvoice Offline
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EHS36 Not answering / upgrade
I have a Jabra 920 connected via EHS36 to a T48. It's not answering or hanging up calls.

Google is suggesting I upgrade the firmware on the EHS36 device - but apparently this is done using Zerotouch. I've configured a Zerotouch button, but this just asks me for a URL and a username/password? What should I be doing?
03-05-2021 09:51 PM
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lonvoice Offline
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RE: EHS36 Not answering / upgrade
Anyone got any ideas on this? I'm desperate!
03-06-2021 08:58 AM
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lonvoice Offline
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RE: EHS36 Not answering / upgrade
Please Yealink, some ideas?
03-07-2021 06:35 AM
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Yisroel_MongoTEL Offline
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RE: EHS36 Not answering / upgrade
You didn't really explain all the steps you took.

While it is "done using Zerotouch", there is more to it. You need a special phone firmware to do it.

See the How to Upgrade EHS36 Firmware_V3.1.zip file (has a PDF guide and a firmware) here https://support.yealink.com/documentFron...cumentId=8
03-07-2021 02:49 PM
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lonvoice Offline
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RE: EHS36 Not answering / upgrade
(03-07-2021 02:49 PM)Yisroel_MongoTEL Wrote:  You didn't really explain all the steps you took.

While it is "done using Zerotouch", there is more to it. You need a special phone firmware to do it.

See the How to Upgrade EHS36 Firmware_V3.1.zip file (has a PDF guide and a firmware) here https://support.yealink.com/documentFron...cumentId=8

So I configured the 'zerotouch' key, and pressed it. The screen then prompted me for authentication and server details.

Reading the document you linked to (which I think is the one I was reading previously), it doesn't mention the firmware for the T48 (only the T46)?
03-08-2021 08:22 PM
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Yisroel_MongoTEL Offline
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RE: EHS36 Not answering / upgrade
(03-08-2021 08:22 PM)lonvoice Wrote:  So I configured the 'zerotouch' key, and pressed it. The screen then prompted me for authentication and server details.
Obviously not enough. You clearly need the special firmware.

Quote:Reading the document you linked to (which I think is the one I was reading previously), it doesn't mention the firmware for the T48 (only the T46)?
You have the T48S (or T48G)? If you have the S model the firmware is the same as the T46S, so you can try the T46S-66.82.0.200.rom firmware included in the aforementioned file.
03-08-2021 08:51 PM
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lonvoice Offline
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RE: EHS36 Not answering / upgrade
Quote:Reading the document you linked to (which I think is the one I was reading previously), it doesn't mention the firmware for the T48 (only the T46)?
You have the T48S (or T48G)? If you have the S model the firmware is the same as the T46S, so you can try the T46S-66.82.0.200.rom firmware included in the aforementioned file.
[/quote]

I have the G unfortunately Sad
03-09-2021 09:35 PM
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Yisroel_MongoTEL Offline
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RE: EHS36 Not answering / upgrade
(03-09-2021 09:35 PM)lonvoice Wrote:  I have the G unfortunately Sad

Sad

I do not think there is such a firmware posted for the T48G. I guess you can ask Yealink through a ticket if the have one.
03-09-2021 09:46 PM
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