[WagonBoiz]

I was just about to reply .. Was the image of the software version you posted before or after flashing the 14volvo system software?? If it was taken after the software then it would have changed your original device name to Ksmart and the config file I sent would be basically the same ...

After. Picture is post flash and then factory reset. It is 100% a Ksmart device though. I have the original packaging.

 

[Sumps]

After. Picture is post flash and then factory reset. It is 100% a Ksmart device though. I have the original packaging.

Here is the original system and mcu for the ksmart box .. may be worth reflashing both items to start from scratch ..

ksmart - Google Drive

drive.google.com

 

[WagonBoiz]

Here is the original system and mcu for the ksmart box .. may be worth reflashing both items to start from scratch ..

ksmart - Google Drive

drive.google.com

Alright, I went ahead and flashed both the firmware and MCU, a couple times each to be safe. Unfortunately this has still not fixed the issue and I'm getting more perplexed.

For example when I originally reboot after flashing that firmware Bluetooth doesn't work.

I have to manually go into the Factory Mode > Advanced Settings > Bluetooth > BW-122. After a reboot I can pair again and Android Auto works. I also noticed that voice commands work, so audio is definitely going one way!

The same thing happens with the sound icon in the top right if I pick something in the advanced settings menu. Still no output.

I really appreciate your help, unfortunately it looks like I once again tried to fix something that wasn't broke. You'd think that a software dev like myself would have learned that lesson by now.

 

[andyaus33]

Hi
There is earlier 2021 software available on this forum on Page 9, post #167 if you want to give it a try.
Not sure if you require an earlier MCU file as well?
Cheers Andy

 

[Sumps]

Alright, I went ahead and flashed both the firmware and MCU, a couple times each to be safe. Unfortunately this has still not fixed the issue and I'm getting more perplexed.

For example when I originally reboot after flashing that firmware Bluetooth doesn't work.
View attachment 179076

hmm i’m curious, if you turn up the volume and pull out, reinsert, wiggle around the little aux plug end, do you heat any static at all through the speakers? what if you plug in an aux device and play through the oem radio, does that work?

i’ve encountered having to delete and repair my bluetooth pairing after reinstalling the system software, never the mcu though …never had to play with the sound type setting though

I have to manually go into the Factory Mode > Advanced Settings > Bluetooth > BW-122. After a reboot I can pair again and Android Auto works. I also noticed that voice commands work, so audio is definitely going one way!
View attachment 179077

The same thing happens with the sound icon in the top right if I pick something in the advanced settings menu. Still no output.

View attachment 179078 View attachment 179079


I really appreciate your help, unfortunately it looks like I once again tried to fix something that wasn't broke. You'd think that a software dev like myself would have learned that lesson by now.

 

[WagonBoiz]

Hi
There is earlier 2021 software available on this forum on Page 9, post #167 if you want to give it a try.
Not sure if you require an earlier MCU file as well?
Cheers Andy

Thanks! I went ahead and flashed this older file. Update definitely went through as I'm seeing an older number, but once again no sound ☹

Honestly, I think it's likely I have a newer version of the box considering it came stock with the 2.0.3 MCU. That would explain why all these firmwares are picking the wrong Bluetooth option and straight up not working.

 

[WagonBoiz]

hmm i’m curious, if you turn up the volume and pull out, reinsert, wiggle around the little aux plug end, do you heat any static at all through the speakers? what if you plug in an aux device and play through the oem radio, does that work?

All oem radio functions work. Bluetooth, Radio, aux cable directly to my phone.

I can hear static on the aux line when nothing is plugged in. I would assume this is the box as when paired to the box via Bluetooth and using the "aux" (not actually plugged in, just tricking sensus) there was always a little noise if volume was loud.

 

[WagonBoiz]

Hey gents, still dealing with my issue, but slowing getting into contact with the Kremersino guys. They sent me a new MCU, which I haven't seen on here yet, to flash last night: 2.0.6. I'll attach here so you all have access. volvo_v2.0.6.zip


I also noticed that their debug box was running a V3.20.00.11.21 firmware, trying to convince them to send me that to try next.

 

[WagonBoiz]

Gentlemen, the ordeal is over. Support finally gave me a link to fresh firmware and after flashing everything works. As soon as it booted up and I saw the sound icon in the top right again I knew it was finally solved.

Here is a link to the firmware they gave me:

14VOLVO_Ksmart_auto_DSP.rar

drive.google.com

I compared this file to the latest firmware from this thread with WinMerge and it claimed they were identical, but clearly they are different. So definitely be wary flashing firmware (not MCU) changes, there might be different versions of the ksmart box even for the same 11-14 model years.

 

[brrine]

This one happens to be the most active post for these retrofits, and while it primarily focuses on the models prior to 2015.5 I wanted to see if anyone might be able to help with updated firmware for the 2015.5 and up version of these boxes. I happened to have purchased a second-hand unit from the forums here and apparently because of that, I can't get any response Kremersino (or even aliexpress vendors) for support.

 

[andyaus33]

Gentlemen, the ordeal is over. Support finally gave me a link to fresh firmware and after flashing everything works. As soon as it booted up and I saw the sound icon in the top right again I knew it was finally solved.

View attachment 180093


Here is a link to the firmware they gave me:

14VOLVO_Ksmart_auto_DSP.rar

drive.google.com

I compared this file to the latest firmware from this thread with WinMerge and it claimed they were identical, but clearly they are different. So definitely be wary flashing firmware (not MCU) changes, there might be different versions of the ksmart box even for the same 11-14 model years.

Hi
They have sent you a Digital Signal Processing (DSP) version of the software, the system up files are the same but there are some differences in the sound settings in the configuration*.ini files which set up the unit to use this process.
I believe the XC70 uses a similar DSP setup.I
Cheers Andy

 

[WagonBoiz]

This one happens to be the most active post for these retrofits, and while it primarily focuses on the models prior to 2015.5 I wanted to see if anyone might be able to help with updated firmware for the 2015.5 and up version of these boxes. I happened to have purchased a second-hand unit from the forums here and apparently because of that, I can't get any response Kremersino (or even aliexpress vendors) for support.

I had the same experience until I reached out to one of the resellers InCarSolutions. They sell both the 2011-2015 and the 2015.5+ KSmart headunits. I finally connected with them at +86 185 0300 0234 on WhatsApp and in a couple days (time zone games) we had worked everything out.

 

[p.rico]

I had the same experience until I reached out to one of the resellers InCarSolutions. They sell both the 2011-2015 and the 2015.5+ KSmart headunits. I finally connected with them at +86 185 0300 0234 on WhatsApp and in a couple days (time zone games) we had worked everything out.

In Car Solutions is who I bought my unit from.

I'm curious to know what's different with the DSP version of the software.

 

[andyaus33]

In Car Solutions is who I bought my unit from.

I'm curious to know what's different with the DSP version of the software.

Hi
Same system software just different sound settings in the configuration ini file.
Assume it uses the DSP Amplifier Chip in the KremerSino unit instead of the Volvo head unit for sound?
Cheers Andy

 

[p.rico]

Hi
Same system software just different sound settings in the configuration ini file.
Assume it uses the DSP Amplifier Chip in the KremerSino unit instead of the Volvo head unit for sound?
Cheers Andy

The DSP chip is always used, regardless, hence the source of the noise (a crappy chipset/bad implementation) and low gain.

 

[p.rico]

Thanks for the 2.06 firmware @WagonBoiz! The firmware fixed one of my main issues, which was the My Car button programming. Now pressing it goes directly to My Car, and stays in Volvo's system when pressing any other buttons. The gain also seems higher? It definitely didn't get this loud before...

I am curious to try your DSP version... everything works though, so that's keeping me from trying it out right away.

 

[Sumps]

my unit produced a lot of whine and noise that could also be heard on phone calls.. I took a ground strap, attached it to the box and attached the other end to diffrent locations in the footwell area until i found ground point that eliminated the noise.. my unit is completely silent now with no hiss or whine with the aux input volume all the way to max… the overall sound volume and quality is still lower than the oem system but at least no more noise… if the unit is only noisy when the engine is running but quite otherwise, i would suggest trying to ground the box as i did

 

[WagonBoiz]

my unit produced a lot of whine and noise that could also be heard on phone calls.. I took a ground strap, attached it to the box and attached the other end to diffrent locations in the footwell area until i found ground point that eliminated the noise.. my unit is completely silent now with no hiss or whine with the aux input volume all the way to max… the overall sound volume and quality is still lower than the oem system but at least no more noise… if the unit is only noisy when the engine is running but quite otherwise, i would suggest trying to ground the box as i did

Where did you mount the ground on the box?

 

[WagonBoiz]

Thanks for the 2.06 firmware @WagonBoiz! The firmware fixed one of my main issues, which was the My Car button programming. Now pressing it goes directly to My Car, and stays in Volvo's system when pressing any other buttons. The gain also seems higher? It definitely didn't get this loud before...

I am curious to try your DSP version... everything works though, so that's keeping me from trying it out right away.

What does it show as the firmware version on your box presently?

 

[abcdefghii]

The gain also seems higher? It definitely didn't get this loud before...

I might have to try this firmware version if that's true, one of the main reasons I rarely use the box is the low gain. I have all this audio stuff in the trunk and it's wasted with the low gain these boxes output.