[Shamanix]

Originally Posted by Alf2

Thank you very much companion, I'm going to read it.

I hope to understand it, and auqwe use language trader.

Receive a cordial greeting

The device is of the same type for a wide range of vehicles. It is necessary to adapt and configure the user's requests for a specific car.

[Midox]

Hi friends,

I have a small issue with my Android HU A13 Witstek-Ksw-T-M600_OS_v1.8.4. I can't activate the weather widget—I keep getting the message: "Activation code has been used."

I’ve tried both HOTSPOT names: KYVNY5KL & 44FESRAN, but without success.

Thanks for your help!

[aleatoriorace]

Hello everyone, I have the following questions/problems.
-only one USB port works, the other one doesn't even provide power.
-I can't activate the weather at all
(I've already tried both methods via hotspot)
-I can't seem to select all the menus that have weather (I think it's because I can't activate it)
MCU updated to the latest version
firmware updated to 4.3.3
8953 625 ksw
native android 10

Can someone clarify and help me? My research was exhaustive and failed to resolve the issue.

[kenza750]

All,

Planning to buy a new (KSW) unit. Sold my car and I would like to have an Android unit in my next BMW again.

My last unit was a CCC one which turned out not running on KSW. It was suitable and fast for my use but I like the customizations which are only possible on KSW units.

my non-KSW unit had an option to let the unit sleep for 2 days which means boot time was extremely fast (about 5 secs after ignition turned on).

Does the current KSW version support sleep as well? Or is it still shutdown everytime and takes 30sec to fully boot again?

[Shamanix]

Originally Posted by Midox

Hi friends,

I have a small issue with my Android HU A13 Witstek-Ksw-T-M600_OS_v1.8.4. I can't activate the weather widget—I keep getting the message: "Activation code has been used."

I’ve tried both HOTSPOT names: KYVNY5KL & 44FESRAN, but without success.

Thanks for your help!

Except for the Chinese seller, no one will help. Publicly available codes don't work

[Shamanix]

Originally Posted by kenza750

All,

Planning to buy a new (KSW) unit. Sold my car and I would like to have an Android unit in my next BMW again.

My last unit was a CCC one which turned out not running on KSW. It was suitable and fast for my use but I like the customizations which are only possible on KSW units.

my non-KSW unit had an option to let the unit sleep for 2 days which means boot time was extremely fast (about 5 secs after ignition turned on).

Does the current KSW version support sleep as well? Or is it still shutdown everytime and takes 30sec to fully boot again?

There is no standby mode. Loading on new processors has become a little faster.

[MikeVix]

Hello, i have gotten a hifimax screen for my Z4 E89, and i had some questions since i found this thread which seems that you know how these HU work.
It is this unit https://hifimaxnavi.com/products/and...39471685992542
I tried to play with the eq app but found out that it didnt work on carplay or bt music streaming only with songs already loading on the hu. The audio playing from carplay and from bt is pretty bad and is causing my new speakers to crakle on low frequencies and i wanted to see if anyone knows a way to make the eq work. It has a 3 way eq bass alto treble but i wanted to see if it can have the advanced eq with all the frequency ranges. Thanks!

[conandrum]

Originally Posted by MikeVix

Hello, i have gotten a hifimax screen for my Z4 E89, and i had some questions since i found this thread which seems that you know how these HU work.
It is this unit https://hifimaxnavi.com/products/and...39471685992542
I tried to play with the eq app but found out that it didnt work on carplay or bt music streaming only with songs already loading on the hu. The audio playing from carplay and from bt is pretty bad and is causing my new speakers to crakle on low frequencies and i wanted to see if anyone knows a way to make the eq work. It has a 3 way eq bass alto treble but i wanted to see if it can have the advanced eq with all the frequency ranges. Thanks!

Check out the DAC tests I made last year and see if you face the same problem like most of us. You probably need a USB DAC.

[MikeVix]

Originally Posted by conandrum

Check out the DAC tests I made last year and see if you face the same problem like most of us. You probably need a USB DAC.

Thanks for the quick reply, sorry for the stupid question, how is the usb dac gonna help, how does it connect, isnt the sound still coming from the head unit?

[MikeVix]

Originally Posted by conandrum

Check out the DAC tests I made last year and see if you face the same problem like most of us. You probably need a USB DAC.

I read 30-40 pages of the thread and wow. Let me give more info. My car doesnt have cic or anything like that its the business cd. Simple. Quality is bad tbh and i dont really care about the calls. I just ordered to retrofit an professional cd unit to have more power to the speakers which i changed. I just want to get the best quality i can get so the sound system can play good. I have a lot of white noise too like in your video. Aux cable is not connected to anything. If you can provide a solution for me it would be appreciated.

[Muzamil]

Originally Posted by MikeVix

Thanks for the quick reply, sorry for the stupid question, how is the usb dac gonna help, how does it connect, isnt the sound still coming from the head unit?

The USB DAC connects to one of the USB A socket (the android head unit has
two USB socket) of your Android head unit). The output from the USB DAC connects to the Aux in of your original head unit. The sound still comes out from your car speakers as normal.

Why do it? The built in DAC is of questionable quality and if you want to improve upon it then an external DAC is the way to go. A usb DAC/Amplifier can also deliver a bit more power than the original line out from the Android headunit and give you a bit more volume

[MikeVix]

I don’t know anything about technical stuff so thank you for clarifying. So what do I buy and where do I connect it? Also the unit doesn’t use the aux jack. I believe it takes sound another way I guess.

[Muzamil]

Originally Posted by MikeVix

I don’t know anything about technical stuff so thank you for clarifying. So what do I buy and where do I connect it? Also the unit doesn’t use the aux jack. I believe it takes sound another way I guess.

There is no other way for sound to enter the original audio system except via the aux jack. Some people have tried to use the Bluetooth connection, but that only works for phone/Idrive connection. Android/Idrive pairing for music doesn't as far as I know but maybe someone got it to work.

As far as what to buy, first look in your center console box, if there is no Aux-in Jack, then an External USB Dac is not going to work for you.

[conandrum]

Originally Posted by MikeVix

I don’t know anything about technical stuff so thank you for clarifying. So what do I buy and where do I connect it? Also the unit doesn’t use the aux jack. I believe it takes sound another way I guess.

HUs output sound through their Audio Out Jack but also through the harness wires (which usually send sound to the car's AUX IN anyway). When a USB DAC is connected though, most sound is redirected to the DAC. (on mine BT phone calls via HU still use the built-in DAC and have very low quality so I use the BMW BT calls instead).

I can recommend my Cyrus Soundkey DAC.

• Small
• Excellent + loud sound (as shown in tests)
• Requires no batteries/recharge
• Has no volume control (avoids issues other DACs have)
• Plug and play and forget.

Connections are as follows:
HU->USB Extension->DAC->audio cable->AUX IN (usually in armrest)
https://f30.bimmerpost.com/forums/sh...7#post31027577

The soundkey is wrapped in fabric tape, next to the second hole of the panel in the first photo. It is tiny.

[MikeVix]

Originally Posted by conandrum

HUs output sound through their Audio Out Jack but also through the harness wires (which usually send sound to the car's AUX IN anyway). When a USB DAC is connected though, most sound is redirected to the DAC. (on mine BT phone calls via HU still use the built-in DAC and have very low quality so I use the BMW BT calls instead).

I can recommend my Cyrus Soundkey DAC. Small and excellent+loud sound as shown in tests plus requires no batteries/recharge. Plug and play and forget.

Connections are as follows:
HU->USB Extension->DAC->audio cable->AUX IN (usually in armrest)
https://f30.bimmerpost.com/forums/sh...7#post31027577

The soundkey is wrapped in fabric tape, next to the second hole of the panel in the first photo. It is tiny.

Thank you for the reply, my android HU doesnt work with the armrest Aux, initially i had it connected but one day i removed it by mistake and sound kept playing normally.

[conandrum]

Originally Posted by MikeVix

Thank you for the reply, my android HU doesnt work with the armrest Aux, initially i had it connected but one day i removed it by mistake and sound kept playing normally.

Please try to absorb what we are trying to tell you.
Your android HU doesnt work with the armrest Aux AT THE MOMENT, but it will work if you connect it there, as you had it before.

Originally Posted by conandrum

HUs output sound through their Audio Out Jack but also through the harness wires (which usually send sound to the car's AUX IN anyway).

That's what I am saying above. Whether you use the AUXIN jack or the HU harness, it is the same thing exactly... both send sound to your AUXIN at the amplifier (in most cases).
Of course using the harness is EASIER because you don't have an extra cable to install.

HOWEVER.... read below

Originally Posted by Muzamil

The USB DAC connects to one of the USB A socket (the android head unit has
two USB socket) of your Android head unit). The output from the USB DAC connects to the Aux in of your original head unit. The sound still comes out from your car speakers as normal.

Why do it? The built in DAC is of questionable quality and if you want to improve upon it then an external DAC is the way to go. A usb DAC/Amplifier can also deliver a bit more power than the original line out from the Android headunit and give you a bit more volume

If you use the HU's harness you cannot use an external DAC (ie. analogous to a better quality sound card in computer terminology).
If you use the HU's harness you are STUCK with the sound quality of the HU's built-in DAC.
I hope you finally get what we are all trying to tell you.
Please say yes

[conandrum]

Originally Posted by MikeVix

Thanks for the quick reply, sorry for the stupid question, how is the usb dac gonna help, how does it connect, isnt the sound still coming from the head unit?

Not exactly.
These devices are digital computers. The sound is digital internally and has to be converted to Analogue before exiting via Audio L/R/Gnd wires. This job is done using an internal DAC (Digital to Analogue Converter).
Usually these units have low quality cheap DACs inside.
The DAC outputs its analogue sound into the harness (3 wires) and into the Audio Out Jack (3 wires into a female 3.5mm jack).
The harness takes these 3 wires and connects them to the AUXIN (in some cases to the REAR AUXIN).
The Audio Out Jack is up to you where you connect it. It is available to do as you please.
Both output the same crappy sound.

The only way to BYPASS the cheap internal DAC is to use a good quality external USB DAC. Once you connect such a DAC to the USB inputs of the HU, immediately the internal DAC should be disabled for the majority of sound processing. So if you are playing an MP3, the file is send to the external USB DAC which converts it to quality analogue sound.
The external DAC has a 3.5mm jack socket for audio output. You have to use one end of an audio cable to plug into your DAC, to pick up the sound output and send it to your amplifier.

Please tell me if you know where you should plug in the other end of this cable! Do you know?

[MikeVix]

Originally Posted by conandrum

Not exactly.
These devices are digital computers. The sound is digital internally and has to be converted to Analogue before exiting via Audio L/R/Gnd wires. This job is done using an internal DAC (Digital to Analogue Converter).
Usually these units have low quality cheap DACs inside.
The DAC outputs its analogue sound into the harness (3 wires) and into the Audio Out Jack (3 wires into a female 3.5mm jack).
The harness takes these 3 wires and connects them to the AUXIN (in some cases to the REAR AUXIN).
The Audio Out Jack is up to you where you connect it. It is available to do as you please.
Both output the same crappy sound.

The only way to BYPASS the cheap internal DAC is to use a good quality external USB DAC. Once you connect such a DAC to the USB inputs of the HU, immediately the internal DAC should be disabled for the majority of sound processing. So if you are playing an MP3, the file is send to the external USB DAC which converts it to quality analogue sound.
The external DAC has a 3.5mm jack socket for audio output. You have to use one end of an audio cable to plug into your DAC, to pick up the sound output and send it to your amplifier.

Please tell me if you know where you should plug in the other end of this cable! Do you know?

Clearly i dont have any idea how this stuff works as u can see XD. Sorry to take up form your time. So correct me if im mistaken, the only change that need to be done is to buy an extarnal usb dac, connect the usb to one of the 2 usb in of the android had unit and the 3.5 jack to the aux in? and it bypasses the harness and everything? Also when you use carplay does it use the external dac or still the internal one?
Edit: Usb Dac options to buy?

[conandrum]

Originally Posted by MikeVix

So correct me if im mistaken, the only change that need to be done is to buy an extarnal usb dac, connect the usb to one of the 2 usb in of the android had unit and the 3.5 jack to the aux in? and it bypasses the harness and everything?

YES almost all audio will be sent to the USB DAC, but...
you may find that some audio will insist on using the internal DAC.
e.g. most users find that if you use the HU BT phone connection, then phone calls use the internal crappy DAC (calls using HU phone app, or ZLINK5 app).
That's why most keep using the OEM BT.
Also if you have AVIN (external Audio Video Inputs) the audio from that is also not sent to the USB DAC and is passed through straight out of the HU audio outputs.

Originally Posted by MikeVix

Also when you use carplay does it use the external dac or still the internal one?
Edit: Usb Dac options to buy?

I do not use carplay but if I remember correctly all audio goes to the USB DAC except AVIN and calls using HU phone app, or ZLINK5 app.

[MikeVix]

What dac is good to use and is it necessary to buy an expensive one what do you recommend?

[Muzamil]

Originally Posted by MikeVix

What dac is good to use and is it necessary to buy an expensive one what do you recommend?

This question reminds me of the old riddle, " How long is a piece of rope?"

The answer obviously is, " As long as you want it to be".

When it come to audio, good is very subjective. Most people settle for "good enough" for the purpose.

Do you plan to listen to Hi Res audio? Are the rest of your components, i.e. speakers, amplifiers, music source High Res capable? Do you plan to upgrade the speakers and amplifiers later?

Perhaps you just want something good enough for normal listening?

For good enough listening, plan on spending around 100 to 150 usd. there are cheaper options, and more expensive options out there but 100 usd is a magic number for decent DACs.

Once you have a budget in mind, look around (online reviews etc) for the best in that price range.

I am using an Ibasso DC04 pro. It comes with an app that allows you to change the digital filters and subtly change the sound but you do not have to worry about that now. Different DACs have slightly different sound profiles (some are brighter, some warmer etc) and you can fine tune your system with the right DAC.

If all you want is something good enough, get the DAC and stop there.

However, Hi Fi is a slippery slope and once you start, it is hard to stop.

[MikeVix]

My Z4 has the base 6 speaker setup with the android HU and the business radio which I am going to change to the professional. I changed the door and rear speakers to the focal BMW kit which added twitters. I currently have problems with cracking bass which I believe it’s from the low quality sound transferring and with the dac I’m hoping to come close to eliminate it. If even that doesn’t work I’m gonna look for a dsp amp which will enable me to get subs also.
That’s the plan. If I am thinking wrong about any part feel free to correct me. Thanks for all the helpful replies.