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Needing to remove the SfB firmware
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Yisroel_MongoTEL Offline

Posts: 221
Joined: Jul 2017
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Post: #2
RE: Needing to remove the SfB firmware
(01-30-2020 03:53 PM)dyminsystems_Support Wrote:  Have a cp960 that was re-flashed and licensed for SFB. Come to find out, that after that, it has removed SIP ability with call carrier/phone system. So I am looking to revert back to OOB default firmware, but when I try to install it errors and says "Firmware Update Failed! Please import SIP license to continue..."

Flashing with TFTP recovery is probably the solution.

Decent guide from 888VoIP on it, Google for How to use the TFTP Recovery Mode on Yealink Devices.
01-31-2020 04:56 AM
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RE: Needing to remove the SfB firmware - Yisroel_MongoTEL - 01-31-2020 04:56 AM

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