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After flashing Andromeda, Can't connect via USB to car stereo

I have a Pioneer FH-P8000BT head unit which supports USB mass storage devices. On stock eclair, it would find my external SD card, where all my music is, and play the files whenever I connected my Captivate(USB settings set to mass storage).
Now, on Andromeda, it says "USB N/A" when I connect the device. I have tried every combination of USB settings that I can find. I checked the phone to make sure that it says "Mass Storage On" or whatever, and even tried turning it off.
Anyone have any ideas how to troubleshoot this?
I can still play tunes over BT, but I liked the sound quality when playing on USB, and I like that my head unit displayed the song name and artist.

I have an avic f720bt and it wont see my phone either.. Im running Paragon 6.0 (2.2.1 based)
I had given up hope to have it connect like my winmo phone did...
Anyone have a fix??

bryan95502 said:
Anyone have a fix??
Click to expand...
Click to collapse
I'm going to keep working at it, and I'll let you know if I find anything.

ScottyNuttz said:
I'm going to keep working at it, and I'll let you know if I find anything.
Click to expand...
Click to collapse
I'm going to bump this nearly year old thread in the hopes that you found a solution and just forgot to post it here...
I'm using a Pioneer MVH-P8200BT with similar issues. I've been struggling with this for at least a year but now that ICS is coming around for the Captivate I'm wondering what has been accomplished or can be done now.

Windows 10 - USB Device Not Recognised - Phone Still Charges (Sometimes)

Hello,
For a while now, my phone when connected to the PC at home, it says USB Device not recognised - however the phone says charging on the screen, so it indicates that it is working somehow (i guess) - most likely it isn't working - the same cable wire works perfectly fine when charging the phone via the wall plug.
Anyone having/had problems like this before? Everything on the PC is up to date. When i connect the phone to the PC at work, i can access the phone memory/pictures etc, the USB cable is not the one i use at home, tried the cable wire on 2 laptops and the phone is still not being recognised. So is the problem with the USB cable wire?
I'll have to check the USB cable wire that is at work (original OP) on my home PC and see if that makes any difference. I'm trying to access the phone via PC and take some screenshots (quite a lot) - Any pointers where i can start debugging?
Android 6.0.1
Cyanogen OS 13.1.2 (bacon)
Battery Status: Not charging (In the status settings)
Thanks
J

Think i've got it working now - well it works for my brothers phone - he had issues getting his phone recognised on the PC.
Following this YouTube video seems to have resolved the problem for him, pretty sure that issue will no longer apply to my phone.

can u give me the direct link ? thx

Azhar_Fahry said:
can u give me the direct link ? thx
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Click to collapse
The link to what? The YouTube video?
Also, looks like the USB cable wire is faulty, so i've ordered a new one and going to check that to see if it picks up the phone on my home PC.

j4v3d said:
The link to what? The YouTube video?
Also, looks like the USB cable wire is faulty, so i've ordered a new one and going to check that to see if it picks up the phone on my home PC.
Click to expand...
Click to collapse
yes , the direct. i thought its my cable , but when i try on other laptop , its working.

Also had some issues with Android and Windows 10 recently. There was always some kind of issue with the MTP driver, so it showed up with an exclamation mark in device manager. Have you tried reinstalling the MTP driver? You can do that by navigating to C:\Windows\INF, right-click wpdmtp.inf and click install.
That's what fixed it for me.

GXGOW said:
Also had some issues with Android and Windows 10 recently. There was always some kind of issue with the MTP driver, so it showed up with an exclamation mark in device manager. Have you tried reinstalling the MTP driver? You can do that by navigating to C:\Windows\INF, right-click wpdmtp.inf and click install.
That's what fixed it for me.
Click to expand...
Click to collapse
Yep, done that. Sorted now. Thank you.

Help needed, Headunit defective or buggy?

Hi community.
This is my first post, so please be nice. I just got my first Headunit and i am having some trouble. It´s an Xtrons TE706PL (MTCE Oreo).
The first problem is WIFI. When starting the connection is always good. But after a few minutes of inactivity its is going down to nearly nothing. In this moment the head unit is on my desk only two meters distance to my router and it gives me only 0.5mbit/sec.
The second problem is USB and SD. I cannot see any pluged in devices in USB or SD-Card slot. The File Manager does not detect them. Only with ES File Explorer I can see the devices pluged in USB and use the files. SD-Slot seemes to be completely dead. But this cannot be right, can it?
So please help me. Did I get a defective Headunit, should I send it back? Or is the software so buggy and I should try another software?
Thanks in advance.
Edit: If I don´t connect with Bluetooth the Wifi seems to work. Strange!

Helm68 said:
Hi community.
This is my first post, so please be nice. I just got my first Headunit and i am having some trouble. It´s an Xtrons TE706PL (MTCE Oreo).
The first problem is WIFI. When starting the connection is always good. But after a few minutes of inactivity its is going down to nearly nothing. In this moment the head unit is on my desk only two meters distance to my router and it gives me only 0.5mbit/sec.
The second problem is USB and SD. I cannot see any pluged in devices in USB or SD-Card slot. The File Manager does not detect them. Only with ES File Explorer I can see the devices pluged in USB and use the files. SD-Slot seemes to be completely dead. But this cannot be right, can it?
So please help me. Did I get a defective Headunit, should I send it back? Or is the software so buggy and I should try another software?
Thanks in advance.
Edit: If I don´t connect with Bluetooth the Wifi seems to work. Strange!
Click to expand...
Click to collapse
Probably you have a md725 bt module (is a rtl8723 wifi+bt chip) that some guys reported to be interfering bt and Wi-Fi signals.
(Check which bt module is set up on factory settings)
Enviado desde mi SM-G950F mediante Tapatalk

The factory settings say: WQ_BC6
Maybe it would help to use a seperate bt/wifi dongle.
Some people here seem to be successful with the Comfast CF-WU725B.

File transfer over USB?

I can't seem to get MTP working with the phone. Whatever cable I use, including the OEM cable, the phone just starts charging. USB settings in Settings -> Connected devices are greyed out. On every other phone I ever used, when connected via USB, a notification shows up asking what to do with the connection (charge, MTP, PTP, etc.), said notification is not here. Anyone else having the same issue?
Edit: googled around, might be an Android issue. Nice. I guess I'll have to use the 3.5mm jack to listen to music in my car now, great.

Lauri455 said:
Edit: googled around, might be an Android issue.
Click to expand...
Click to collapse
Can you give us the link you have found?

_jis_ said:
Can you give us the link you have found?
Click to expand...
Click to collapse
https://support.google.com/fi/thread/257513?hl=en
https://support.google.com/pixelphone/thread/1853975?hl=en
https://forums.oneplus.com/threads/op5t-usb-file-transfer-not-working-on-android-pie.995105/
https://forum.xda-developers.com/pixel-2-xl/help/pixel-2-xl-usb-preferences-greyed-t3838058
https://forum.xda-developers.com/android/help/usb-computer-connection-option-greyed-t3634250
And a few more. The only solution apparently *maybe* is to buy a 3rd party cable.
Edit: after writing this post I decided to try again and lo and behold... It works now. For reasons of I don't friggin know. All cables that didn't work before now work just fine for charging and data transfer between my PC and the phone. Unfortunately my car HU keeps disconnecting and reconnecting the USB, which is a bummer because that's the reason I actually care about file transfer.

I am using Android Pie on my Mi A1 from Christmas 2018 and I never had a problem with MTP, it worked fine with all monthly security updates.

Works as expected here for me at least, with the prompt and everything.

Just tried it out for myself on my work laptop. Connected via a 3rd party micro-USB cable with micro-USB-to-USB-C adapter (so one of the more "fragile" ways to connect) and it directly popped up the question of whether to allow file transfers. After that, the phone was normally browsable on the computer and the USB connection notification that allows for mode-switching is present.

Lauri455 said:
I can't seem to get MTP working with the phone...
Click to expand...
Click to collapse
So one can conclude that problem is in your phone, FR will cure it probably.

_jis_ said:
So one can conclude that problem is in your phone, FR will cure it probably.
Click to expand...
Click to collapse
Perhaps actually more with the unit in the car.. From my understanding the buggy file-transfer is between the phone and the car's unit?

Question CarPlay on fyt headunit

Hi all does anyone else have an issue with apple carplay showing pixilation and artefacts on the screen?
Seller is not much help with this issue.

did you resolve the issue? does restart the head unit help?

No couldn’t resolve the problem. Restarting the headunit or phone would clear it but it kept coming back. I’ve since changed to a Teyes cc3 and haven’t had the issue

Thanks for the quick reply, I have the same pixilation problem, not as bad as yours, still useable. just want to check if there's any solution

I did try everything but just couldn’t sort it. Not much on the internet about it but some merc users had it but was fixed with a reboot of the phone.

There is a lot to find about "apple carplay pixelation" on the apple forums like "I pressed the home button and then Apple car play again and the screen went back to normal without losing the route map." Of course this is only a work-around.
Next to that: keep an eye on new releases of the carlink app. The latest version (multiple links in this forum) solves a lot of issues.

Thank you. I did try multiple versions and the seller was sending updated carlink apks but none worked. I also bought a dongle which showed the same issue unless the software was set to software mode and not hardware. Once I did that the CarPlay screen wasn’t as high res but didn’t show any pixelation.

Mine freaked out like that a few times.
I made sure it wasn't on Satellite view, used 5G wifi, and it mostly took care of it. sometimes all it took to clear was pulling down the menu on the head unit or dismissing the lower menu bar or similar.

j-5 said:
Mine freaked out like that a few times.
I made sure it wasn't on Satellite view, used 5G wifi, and it mostly took care of it. sometimes all it took to clear was pulling down the menu on the head unit or dismissing the lower menu bar or similar.
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Click to collapse
deadeye920 said:
Thank you. I did try multiple versions and the seller was sending updated carlink apks but none worked. I also bought a dongle which showed the same issue unless the software was set to software mode and not hardware. Once I did that the CarPlay screen wasn’t as high res but didn’t show any pixelation.
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Click to collapse
And you both tried it on wireless and via USB?
I can imagine that wireless is the nicest one, but if a USB cable solves "everything", I would still use it. Maybe not for a 5 minute drive, but certainly for over an hour. It takes just as much time to connect/disconnect as to use one of the work-arounds during the trip (and maybe multiple times).

Yeah tried wireless 2.4ghz, 5ghz and wired with different cables.

surfer63 said:
And you both tried it on wireless and via USB?
I can imagine that wireless is the nicest one, but if a USB cable solves "everything", I would still use it. Maybe not for a 5 minute drive, but certainly for over an hour. It takes just as much time to connect/disconnect as to use one of the work-arounds during the trip (and maybe multiple times).
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Click to collapse
Mine never connected via USB. I think only one of my USBs alllows that, and I chose the wrong one when piping it through to the front camera (i'd have to connect to it behind the glovebox)
I don't use carplay anymore since getting a DPI changer to make google maps actually usable on the screen. Before it was too small. wish I could set resolution by app or some kind of zoom mode for maps.

I agree about the dpi. I’ve changed mine to around 622 so that apps are more useable on the road.

j-5 said:
Mine never connected via USB. I think only one of my USBs alllows that, and I chose the wrong one when piping it through to the front camera (i'd have to connect to it behind the glovebox)
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Click to collapse
Yeah, I had that too. Mine has 3 USB connections, but one seems not functional (or is that one the OTG? I did not even try, to be honest). 2 are in the glovebox and the 3rd behind the glovebox connected to my DAB+ antenna.