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Sync 3.4.23188 - Feedback & Issues
Introduction
Sync 3.4.23188 has been found online and added to Syn3 Updater! thanks once again to @AuRoN
For each new release a specific thread will be created, please use this thread to post any feedback or issues …
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179
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102073
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1 March 2025
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sync 3 call answering issue
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4
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18
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5 December 2025
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Black screen: is it the fault of the APIM or the battery?
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19
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123
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5 December 2025
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[URGENT] Ford Transit Custom 2018.5 (BCM ) – IPMA keeps throwing U2100 after calibration. Need help resolving this
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2
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16
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5 December 2025
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Downgrading MY20 Ford from Sync 3 3.4 to 3.3
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4
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29
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5 December 2025
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NA 2024 (Released 2025) Maps add to Syn3 Updater
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65
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7528
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4 December 2025
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I want to go back to the original system.
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3
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32
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4 December 2025
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Transit Custom 2018 – Sync 3 retrofit works but APIM not visible on CAN (JK2T-15604-FAE BCM)
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5
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46
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3 December 2025
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Voice commands in Waze and CarPlay
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6
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51
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3 December 2025
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Sync 3.4.23188 Update Nav fault
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8
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56
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1 December 2025
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sync 3 with version 3.3.19051, update to 3.4.23188 isseue
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8
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89
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30 November 2025
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Sync 2.2 to 3.0 (possibly incomplete install?) freezing issues after update
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34
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121
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30 November 2025
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Heated steering wheel not functioning after update
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14
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50
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30 November 2025
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Curious if this has navigation or not
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8
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41
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30 November 2025
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Chimes from ipc instead speakers
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32
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185
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30 November 2025
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Convert sync 1 to sync 3
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2
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24
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29 November 2025
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Ambient lighting retrofit for Ford Focus MK4
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2
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257
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27 November 2025
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Can not get authorization to pop up after retrofitting TCU in 2017 fusion se
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3
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34
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27 November 2025
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PKG_ERR04 installation échouée
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36
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141
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26 November 2025
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Тёмный экран мультимедиа, подозрение на два элемента АПИМ или аккумулятор, что причина, что последствие
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2
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24
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26 November 2025
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Display climate quadrant not working
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3
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39
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26 November 2025
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2019 F250 SYNC3 upgrade, no vehicle or reverse sensors showing while in reverse
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9
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32
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28 November 2025
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Black screen, no Bluetooth connection, no rear view camera, no backlighting for the Power and Search buttons.
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9
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56
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26 November 2025
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Activating Ambient Lighting on a 2020 GT500 digital dash
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4
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27
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25 November 2025
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Reversing camera picture quality poor
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4
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33
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25 November 2025
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Retrofit TCU to Fusion Issue.
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5
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39
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24 November 2025
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Updated from sync 3.3 firmware to 3.4 and now Fm/am stations wont change
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5
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46
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24 November 2025
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Sync 3 non-nav to nav, lost SiriusXM
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2
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34
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24 November 2025
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Ford Fusion Heated Seats not working
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11
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68
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26 November 2025
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APIM - JR3T-14G371-AFB - After updating the maps - the device restarts after about 2-3 minutes
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3
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45
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24 November 2025
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