[Android Head-Units] _yuzo_:
This thread relates to MCU: CSN2_xxxxx, CSN2_D_xxxxx and CSN2_8600_D_xxxxx for PX4, PX5 and PX6 platforms

This thread is a mirror of russian 4pda to cover more users/developers.

All units are made by Klyde, but are sold under different brands.

I've been looking for a simple way to donate me if this thread is useful for you, all the ways are collected in one post there

The thread requires a new mainteiner. Details are there.

Hardware specifications:

CPU: Octa-core PX5 1.5GHz Cortex A53 64 bits CPU

ROM: 16/32/64G

RAM: 2/4G

Resolution: 1024*600

Out Power: 4*45Watt

Operating System: Android 8/9

Radio Tuner/Audio Chip: NXP6686 / TDA7851

Built-In WiFi Module /Support External 3G Dongle

Features: Radio Tuner,Built-in GPS,MP3 Player,Bluetooth,Touch Screen,TV,Mirror link,Built-In Microphone,Support Steering Wheel Control,Support Can-Bus

Useful tips

Tag [Android 8] means that it applicable to Android 8 :), the same for [Android 9]. If there is no tag, it suits both versions.

Factory Settings password: 126

If you type 888 while opening Factory Settings, the Logo changing menu appears instead of Factory Settings. Logo1 replaces "Navigation system" picture, Logo2 replaces "android" picture. Logo2 is animated.

Developers mode password is 237

Password 927 opens menu, that helps to adjust screen brightens by changing VCOM value. You can set it between 1 and 100. Be careful with that!

[Android 8] How to get root: Use a rooting app, alternative link

[Android 9] How to root

Warning! You should be careful with that as it can brick your device once you tried to update SuperSu. Do not update SuperSu binary or the SuperSU app!!! You will get bootloop if that is updated!!! Also you have to wait until the tool completes its job, otherwise you can get no sound. If you face the mentioned problems, just re-flash your device. BE CAREFUL!.

Starting from android 8 January firmware there is an option "OFF" for "Power off delay if ACC OFF". it allows to keep android in a sleep mode forever. Please note that it consumes around ~9-10mA in this mode. Powered off device uses 4.8mA only (twice less than sleeping mode).

How to get enter stock recovery: hold reset(power) button, wait until sensor buttons start blinking, release and immediately press the button again. See video

To adjust the back camera brightness, just tap the screen when the camera is active.

Set custom logo

Detailed device schema

Known issues/limitations and fix/workaround for that

Lost wheel key settings and radio stations in case full power loss (yellow wire). Make sure that yellow wire is not disconnected when the car is stopped/locked.

Sound level is 10 (12) after reboot/sleep if you was listening louder; if it was less than 10 (12) stays the same. 12 appeared in Dec 11th firmware, it was 10 before that. Not topical starting from Dec 27th firmware, now you can define default sound between 12 10 and 20 in Car Settings-->Personal Settings. 10-20 is in Jan 17th firmware .

buzz in speakers caused by 433MHz alarm system and USB stick remounting.

small buzz caused by WIFI, observed in complete silence only. Not an issue if there are no connected devices.

There are lots of cases when wheel keys does not work at all. The reason is in wiring. Please study the head unit manual + car wiring scheme and put the needed wire to the correct connection shoe.

if you have canbus adapter and wheel buttons duplicate actions (i.e you pressed next track, but 2-3 tracks were switched, the same for sound level), just flash Jan 17 or newer firmware. Also it is possible to change wiring, but the firmware is much easier.

if you have canbus adapter and track switching is reversed (incorrect), just go to Factory Settings --> canbus and set keys_previous_next to change.

Bluetooth ODBII and hands-free (calls) does not work simultaneously. At the same time ODBII and BT Music works well simultaneously. Hardware limitation, no idea for now if that can be solved.

Voice dialing, voice search do not work on some devices. Fixed in May 8th firmware.

1.PX5 Firmware.

You can combine different firmware and MCU (I.e. take the pumpkin MCU + April firmware or vice versa). MCU from Android 8 is compatible with Android 9. Mind DSP only while updating MCU.

The factory does not provide me with a changelog! Do not ask about it.

Android 10.

Mar 31st 2021 202103310921

Mar 23rd 2021 202103231402 with Erisin launcher

Jan 4th 2021 202101041604 + MCU CSN2_D_1152020_114303

Fake Android 10.

It is the same android 9 firmware, but with the changed launcher, radio and Bluetooth app.

July 6th 202007061156

Android 9.

The link for the most recent firmware and MCU: with DSP and without DSP. _D_ in the MCU version means that it is for units with DSP.

All available versions of MCU are on my Google drive.

Firmware history and links:

Sep 1st 2020 202009011014

June 1st 202006010933

Android 8.

The link for the most recent firmware and MCU: with DSP and without DSP. _D_ in the MCU version means that it is for units with DSP.

All available versions of MCU are on my Google drive.

Firmware history and links:

June 18th 201906180853 + MCU CSN2_06102019_114308

2. PX6 Firmware

Android 10.

Aug 27th 2021 202108271854

Mar 31st 2021 202103311813

Oct 27th 2020 202010270905

Android 9.

July 1st 202007011143

3. PX5 Android 9 for 1 DIN units with MCU CSN2_8600_D

The differences between this unit are on Russian 4pda

Firmware 201911301053 + MCU CSN2_8600_D_11202019_162651 is located on Google Drive

4. PX4 Firmware

Android 10.

Oct 23rd 2020 202010231137

The instruction how to upgrade is there

The list of purchased devices

KLYDE for Subaru Forester

OTOJETA for Nissan and 3 more for Sportage IV

KANOR 2pcs for Oulander and 2DIN 2Din and 2pcs for Mazda, and for cee'd

SKYSHADOW for hyundai i40, and for Prado, also 2Din with 32Gb and 64Gb

HaiSunny for StantaFe

Eonon GA9180A for Chevrolet/GMC

Autostereo for Mazda 5

Tested and compatible 3G/4G modems

ZTE MF622

ZTE MF825

Huawei e173

Huawei E352

Huawei E3272

Alcatel 410D