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Yealink Forums » IP Phone Series » T4x Series » SFB - Latest firmware for T4xS phones

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SFB - Latest firmware for T4xS phones
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Lucia_Yealink Offline
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Post: #7
RE: SFB - Latest firmware for T4xS phones
Do you upgrade the firmware from SIP version to SFB version? Please reset the phone to factory and import the license again.
If still have problem, please provide the screencapture for me to check.
11-14-2017 02:58 AM
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RE: SFB - Latest firmware for T4xS phones - Lucia_Yealink - 11-14-2017 02:58 AM

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