[VOLVO SCT] Volvo Sensus Connected Touch (car - navi - audio)

donaldta · Feb 6, 2014

RichieB said:
Isn't this the same file as you posted in Post #1152?

Yep. I wasn't thinking. Just saw "at com.parrot.audiosettings.AudioSettingsApplication.createAudioFXManager(AudioSettingsApplication.java:83)". Which is part of the package. Have you checked /data/data/com.parrot.audiosettings if there are any mislinked files? Because there are no packages called, "AudioFXManager ". Maybe I'm reading it wrong?

Ohhh... now that my mind is clearing up a little from waking up "com.parrot.asteroid.audio.effects.AudioFXManager.setAudioEffectsDefaultsValues". This might be a class of /system/framework/com.parrot.asteroid.jar as noted in /etc/permissions/com.parrot.asteroid.xml file. Not sure if you want to try it but I've attached it.

BTW, have you considered downloading the PLF for the Asteroid Smart? Seems to me that it might benefit you the most if you a copy of the potential files that you can merge into the SCT.

donaldta · Feb 6, 2014

gebla said:
Gogole announced today that it will analyze traffic and will propose actively better routes in Google maps. Will the version supported on the SCT also get this function?

It depends on how Google implements it. If they implement it at the backend in their servers' navigation calculation algorithms then you should be able to use it on any version of Google Maps. If they add it as an updated class in Google Play Services for the location services then you'll need to install it. However, if they place a dependency on the actual Google Maps then the answer is "no". Since the SCT is on Gingerbread so 6.14.4 is the most current Maps.apk version compatible.

It is nice to know that they are making good use of the Waze company/service they recently acquired though.

RichieB · Feb 6, 2014

donaldta said:
BTW, have you considered downloading the PLF for the Asteroid Smart? Seems to me that it might benefit you the most if you a copy of the potential files that you can merge into the SCT.

Yeah, I was just thinking about it. Downloading now. Do you know if there is a Unix plftool? All I found was the Windows version you linked to in the opening post.

donaldta · Feb 6, 2014

RichieB said:
Yeah, I was just thinking about it. Downloading now. Do you know if there is a Unix plftool? All I found was the Windows version you linked to in the opening post.

No. But, in the same link there is the source code to the project. It's a .net C# tool, so you should be able to cross compile with Monolith or some other cross-compiler. Though, some of the syntax might need to be changed.

icarusholding · Feb 6, 2014

prevent switching off

would it be possible to prevent SCT to switch off? Reason is that starting up takes such a long time, especially with tasker and tomtom that I rather prevent it from switching off alltogether. The screen needs to power down, but in the backgroudn everything should keep running. It already does such for a couple of minutes, so I guess it should be possible. Cant find an app that would do that though. Idea's very welcome!

santu001 · Feb 9, 2014

RichieB said:
Yes, you edit /data/system/packages.xml, look for:

Code:

<shared-user name="com.parrot" userId="10005"> <sigs count="1"> <cert index="1" /> </sigs>

And just change the index to "0":

Code:

<shared-user name="com.parrot" userId="10005"> <sigs count="1"> <cert index="0" /> </sigs>

Make sure not to add newlines using a brain dead Windows editor.
Then you rename the orignal com.parrot.mediaplayer.apk:

Code:

remount.sh system-rw cd /system/app mv com.parrot.mediaplayer.apk com.parrot.mediaplayer.apk.bak

Now #reboot# and install the com.parrot.mediaplayer.apk that @donaldta provided.

I'm not too disappointed myself. With this new media player one of my biggest frustrations is gone. If I could only get it to accept all my 45.000 mp3 files, it would be close to perfect.

Ok, tried it, but didn't succeed sadly...

But I do have a different value in packages.xml

Code:

<shared-user name="com.parrot" userId="10005">
-<sigs count="1">
-<cert index="2"/>

Still I changed cert index to 0

Code:

-<shared-user name="com.parrot" userId="10005">
-<sigs count="1">
-<cert index="0"/>

Then I renamed the original com.parrot.mediaplayer.apk to .bak extension with ES file explorer, rebooted from android terminal, but it still didn't install. For convenience I attached the original packages.xml.

RichieB · Feb 9, 2014

It seems your SCT has certificates in another order. Could be because I am still on version 1.47.88.

From you packages.xml:

Code:

<package name="com.parrot.activesources" codePath="/data/app/com.parrot.activesources-1.apk" nativeLibraryPath="/data/data/com.parrot.activesources/lib" flags="0" ft="1432d043ca8" it="1432d0441b7" ut="1432d0441b7" version="1" userId="10071">
<sigs count="1">
<cert index="1"

So you need to set the cert index to "1". Or delete the complete shared-user section for "com.parrot":

donaldta · Feb 9, 2014

RichieB said:
It seems your SCT has certificates in another order. Could be because I am still on version 1.47.88.

It is possible that he never installed the com.parrot.activesources apk, so its cert isn't there.

RichieB · Feb 9, 2014

donaldta said:
It is possible that he never installed the com.parrot.activesources apk, so its cert isn't there.

That is theoretical possible (the activesources apk was in his packages.xml), but since the Parrot certs always seem to have an index of 1 lower than the acu cert, I think they come preinstalled.

santu001 · Feb 9, 2014

Thanks guys, for your quick responses and thoughts. I have the most recent version. So this could mean the solution is very dependent and could be different on each unit. I will try your suggestion. Meanwhile I restored the original packages.xml. Even though nothing seemed wrong, I thought I better be save then sorrow!

RichieB · Feb 9, 2014

santu001 said:
So this could mean the solution is very dependent and could be different on each unit.

Yes, it seems the cert indexes changed between the firmware versions, or maybe their order differs per SCT device. But as your packages.xml shows, the correct cert index for you is "1". This should work for you. I also had to remove the package entry for com.parrot.mediaplayer from the packages.xml because the new apk does not match the old entry. Normally the entry is removed when an app is uninstalled, but that is not possible with system apps.

santu001 · Feb 9, 2014

RichieB said:
Yes, it seems the cert indexes changed between the firmware versions, or maybe their order differs per SCT device. But as your packages.xml shows, the correct cert index for you is "1". This should work for you. I also had to remove the package entry for com.parrot.mediaplayer from the packages.xml because the new apk does not match the old entry. Normally the entry is removed when an app is uninstalled, but that is not possible with system apps.

So, I should also completely delete this section within packages.xml?

Code:

</package>
<package name="com.parrot.mediaplayer" codePath="/system/app/com.parrot.mediaplayer.apk" nativeLibraryPath="/data/data/com.parrot.mediaplayer/lib" flags="1" ft="14820" it="14ff0" ut="14820" version="1" sharedUserId="10005">
<sigs count="1">
<cert index="2" />
</sigs>

RichieB · Feb 9, 2014

santu001 said:
So, I should also completely delete this section within packages.xml?

Yes, because the cert index in that section is wrong. It will be recreated when you install the new APK.
Remove the section starting with

Code:

<package name="com.parrot.mediaplayer"

up until this line right beneath it:

Code:

</package>

Here is an awk script to do this safely:

santu001 · Feb 10, 2014

I already edited the file manually and did the whole routine and got to install the APK. I did struggle with some issues at first, where the player activity intend couldn't be found and gave an error with all sources. Then I tried to leave the package line intact and just changed to the same cert (1). Installed the APK again and somehow It worked. So thanks again and then i'll stop..

:good:

The lay-out looks much better, although I do wish we could change the background, but that's nitpicking. I knew it wasn't perfect, but since it's a necessity we got the better deal. Still, now I created another problem, sort of.. I'm missing most album arts. I already had this problem and I really couldn't care less, since I mainly use Player Pro. But now I have to find a way to get those arts up again, because the new player needs it to benefit. Maybe It's because I edited them within Player Pro that I've lost them, but it would be nice to manually trigger the grace note database update.

Pity that we didn't also get a better music browser to search your albums and playlist. Scrolling can be very annoying.

RichieB · Feb 10, 2014

Good to see you got it installed. I think the way you are supposed to search is by using the voice recognition. It works reasonably well, the few times I've used it.

santu001 · Feb 10, 2014

After finding out that during the day the Parrot media player changes background and becomes even lighter, I tried to change the original apk with a different background pic. I used the original ACUhome globe background and copy paste it into the metal background image and the rename the unzipped file to apk again. Well that didn't work because it didn't install.

But maybe it much easier to just change the background image in drawable-night-hdpi and drawable-nonight-hdpi directly within SCT. But I couldn't find the location. I guess it would be possible to swap those files, or at least make daytime and night time the same, or is this simplistic thinking? So does anybody know where I should look to find and replace those backgrounds. I did it all with ES file explore within SCT, so that probably not the easiest way. But since you can't use the search-option in system files, it's like searching for a needle in a haystack.

Just for the record I added my new background as an attachment. It's probably to dark and therefore effecting readability of the text anyway. But the daytime setting is way to bright in my opinion. So I would just settle for the night time setting.

Regarding the album covers. I searched the activities within ADW custom shortcuts to find a way to manually update the cover art, although there are lots of other options, I just couldn't find it, so maybe it not there? I guess adding or changing the content of the USB with automatically trigger the Grace note update. Could also be that setting ACUhome as default would do the trick. Now I only get a few covers which are most likely retrieved from the USB folders.

donaldta · Feb 10, 2014

santu001 said:
After finding out that during the day the Parrot media player changes background and becomes even lighter, I tried to change the original apk with a different background pic. I used the original ACUhome globe background and copy paste it into the metal background image and the rename the unzipped file to apk again. Well that didn't work because it didn't install.

You would need to re-sign the APK if it is modified. Otherwise Android will reject it because it cannot prove authenticity.

RichieB · Feb 10, 2014

donaldta said:
You would need to re-sign the APK if it is modified. Otherwise Android will reject it because it cannot prove authenticity.

Before you sign the APK (using jarsigner) you will need to update the SHA hashes inside the MANIFEST.MF file:

to get the updated SHA hash you can use

Code:

openssl sha1 -binary res/drawable-notnight-hdpi/metal_player_background.png | base64

donaldta · Feb 10, 2014

RichieB said:
Before you sign the APK (using jarsigner) you will need to update the SHA hashes inside the MANIFEST.MF file:

Code:

Name: res/drawable-notnight-hdpi/metal_player_background.png SHA1-Digest: XpBM0qa8Tn/MUlTvvjmp9K7p+20= Name: res/drawable-night-hdpi/metal_player_background.png SHA1-Digest: Y6AEklJAbPuYBoC7FvJBwzQplz8=

Isn't this done for you if you use something like APK Multi-tool or Android Multitool?

RichieB said:
to get the updated SHA hash you can use

Code:

openssl sha1 -binary res/drawable-notnight-hdpi/metal_player_background.png | base64

Thanks! I appreciate the explanation. I always wondered about the SHA1-Digest was in the Manifest.MF file. I sort of thought it was odd that the values were different from the Cert.SF file. For your suggestion, I guess the Cert.SF digest is created by including the developer's keystore in the algorithm while the Manifest.MF doesn't.

Too bad the ResXploit module of the Xpose Framework for the Gingerbread version hasn't been backported yet. Otherwise this would be easier to accomplish without having to do any compiling or signing.

santu001 · Feb 10, 2014

Ok, not that simple then. I though It would be easier to just replace the jpg file somewhere in SCT. Not that it's that complicated with your help and effortless guidelines, but I'm not sure what the result will be anyway without a preview. In daytime the text changes from light to dark, so if I resigned the apk with both dark backgrounds, it would probably not be usefull anyway. It's not that big a problem for now, If I get restless I'll give it another try.

It's more that I like to then that I need to...

The cover art is a bigger concern. Funny thing, if I add another USB device the cover arts are there, most of them are very low resolution, but we can fix that. So for now I use different usb-devices, which is easy since your USB music apk is fixed on usb 1. A work around for now and..

[VOLVO SCT] Volvo Sensus Connected Touch (car - navi - audio)

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