Android Head Units

Version 1.7.2 based on Android 11 for KSW devices running on M600 (SD662/SM6115) and M606 (SD460/SM4250) platform, built on Tuesday, April 12, 2022.

Changes since Ksw-R-M600_OS_v2.0.3-ota, built 18 days earlier.

Summary

• NEXAI build based on Ksw-R-M600_OS_v2.0.3-ota; the 1.7.2 number does not mean it is older than 2.0.3
• The Chinese TXZ voice assistant is replaced by TXZ’s overseas assistant, NEXAI (“Hey Nex”)
• NEXAI has to be activated online with the NEXAI app
• Launcher, themes, KSW settings, media and air-conditioning apps are byte-identical to 2.0.3

Changes

• Voice engine com.txznet.txz (TXZCore) goes from the Chinese 3.6.44 to the overseas 3.3.3_2, with Cerence US-English speech recognition and Vocalizer text-to-speech
• New “Toppal Service” (com.txznet.aipal 2.0.0) handles NEXAI activation by QR code, which needs internet, and lists “Basic Edition”, “Standard Edition” and “Premium Edition”
• New “Toppal Voice” (com.txznet.smartadapter YC-KSW-SH-3.3.0) holds the assistant’s settings: wake-up word, language downloads, voice, default music, navigation and video apps, and more
• The Chinese com.txznet.adapter is removed. First-boot setup installs “Toppal Voice” only when “Google Apps” is on, so the assistant probably needs “Google Apps” on (not tested)
• “Toppal Voice” has “Upload Log” and “Upload Voice” buttons that send the /sdcard/txz/log and /sdcard/txz/voice folders to oss.txzing.com
• Activation is checked over plain HTTP at abroad-license.txzing.com
• com.txznet.aipal appears to get location and storage access automatically
• Wi-Fi hotspot: when the unit moves the hotspot to 5 GHz it sets WPA2 security again, unless “Security” was changed by hand. The hotspot password is written to the system log
• Wi-Fi driver settings gindoor_channel_support=1 and etsi13_srd_chan_in_master_mode=1 appear to allow the hotspot on indoor-only and 5.8 GHz short-range channels
• CenterService can receive door, seat belt, fuel, speed and temperature warnings from the MCU for the voice assistant; nothing in this firmware appears to use them yet
• Several voice “volume up” or “volume down” commands within 300 ms now count as one step
• Voice dialling: CenterService sends KswBt the bare number instead of {number:…}
• USB mode switching uses the M600 handling on any M600 or M501B build
• The /sdcard/otapackage updater added in 2.0.3 reports an error when there is no update file or the install fails

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