yashsingh1/xdaforums huggingface dataset:
[MTCD Android Head Units General] droc.noles:
Does anyone experience short stuttering audio spurts every now and then when using the Music app? Doesn't seem to affect radio functionality for whatever reason, but every few minutes when playing back local media, I get a short interval of audio glitching.

Doesn't seem to matter which SD card I use, also the internal storage is affected just the same.

Just can't seem to isolate what might be causing the problem. I tried to enable logcat, but I'm not exactly sure what I should be looking for, and the only "error" that I seem to consistently see when these glitches occur involve "VsyncReciver" timeouts (buffer?) - not sure if that message is even relevant. It seems as if these glitches occur most often when engaging the system via another app, or when polling for something involving data usage.

Dasaita PX5 unit for reference.
[MTCD Android Head Units General] ziggimon:
I have the Xtrons TB706APL and I get the same, be it Plex, Spotify, Music Player. Any audio thats played from storage sometimes get that. I've not checked logs so could be the same issue as your hearing. And as with you its not happening when using DAB+ or FM radio.
[MTCD Android Head Units General] Acceldrag:
Unfortunatelly the blink/dim thing of the unit remains...i used wire tape to all cables and wires behind the unit but no change.

Still trying to find what's the prob?
[MTCD Android Head Units General] samadhi23:
sorry for the question ... what is the "780" in "kgl780"

i am on:

PX5 A53

MTCD_KGL_V2.43_5

Mar 31 2017

can I flash this MCU for update ...

for example I miss the ACC of Option in "Extra Settings" - will this update fix this?
[MTCD Android Head Units General] Scipy10:
yes
[MTCD Android Head Units General] Alexdepalma:
Hello, i had the same problem with my install. Two things happened to me.

First, my unit Xtrons for BMW has 2 plugs in the back where same connector can be inserted. The right one sends the blue cable signal to start external amp. If that's your case, try the other plug.

Second, there are two blue remote cables, one for ANT and another for external amp. Try to plug the antenna one. My BMW has an antenna amp and needs to be feed by unit in order to start. May be you can check both.

Good luck,

Alex
[MTCD Android Head Units General] careles:
kgl780 means kgls 780 model! LoL

if your screen resolution is 1024x600 then yes, if its 800x480 then use this one:

pd. whats that acc option youre talking about?
[MTCD Android Head Units General] gsrcrxsi:
Xtrons TB706APL

is there a way to tether internet TO this device from a cell phone via USB? rather than using a wifi hot spot.

I can use wifi hotspot from my iPhone 6s, but when I try to share via USB, the xtrons unit does not recognize that internet is available. It should be possible somehow since it it advertised to be compatible with a 3G dongle (which interfaces via USB).

can anyone tell me how to do this? a USB internet connection would be more secure and would not cause such interference with BT.

Unless the wifi/BT interference problem has been solved by a new software update?

I currently have the April firmware (0414 i believe) and the GS MCU 2.43
[MTCD Android Head Units General] adrianjd:
stock revovery

Hi. I need stock recovery for my PX5 MCU GS 2.43 android 6.01. Somebady can help me ??
[MTCD Android Head Units General] syk02jcb@hotmail.com:
This is he latest stock from xtrons:

https://1drv.ms/u/s!AjrY0uqbW_kBgzg9tEyeqrEACCfT
[MTCD Android Head Units General] droc.noles:
I've found that disabling WiFi when listening to locally stored music seems to lengthen the time between these momentary glitches, but even that doesn't completely eliminate the issue. Really wish this annoying problem could be isolated, but given the limited responses here, I'm not sure that this is a regular issue for most PX5 users.

I've also noticed that plugging anything into one of the unit's USB ports while locally stored music is being played back will initiate a temporary audio dropout, so I wonder if this could be somehow power related? CPU spiking perhaps?
[MTCD Android Head Units General] ikerg:
I have no glitches in my px5 unit. As software is the same it could be related to hardware?

Which brand / model you have?

Mine is dasaita for mazda cx5 10.1inch.ROM from May. MCU 2.44

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[MTCD Android Head Units General] droc.noles:
Dasaita PX5 for Toyota Corolla. MCU 2.44 as well. I've tried the 20170504 ROM issued by hotaudio, as well as Malaysk's latest ROM. With that said, this issue has been present since the outset, so it could very well be hardware related, but I'm not sure how I'd be able to confirm.

---------- Post added at 03:06 AM ---------- Previous post was at 02:59 AM ----------

Also ikerg - for reference, did you receive a Kingston 8 GB SD card with your unit? Are you playing back your locally stored music from SD or internal storage? I guess I just don't want to believe that this could seriously be a hardware issue. I recall you telling me in one of these threads that it could be related to possibly one of the exposed video RCA cables touching metal behind the unit, but I figured that if that were the case, I'd be dealing with a more consistent problem, no?
[MTCD Android Head Units General] ikerg:
I never use the sdcard for music...as the Kingston 8gb supplied is a very low speed card.

I use usb pendrive for my music and videos

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---------- Post added at 02:23 AM ---------- Previous post was at 02:21 AM ----------

Do you have any other hardware connected?

Can-bus or dab radio or anything?

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[MTCD Android Head Units General] droc.noles:
Canbus adapter that was supplied with the unit is indeed connected.

Might give a few different USB drives a shot given that information. Although shouldn't the internal storage be sufficient in terms of speed and stability?
[MTCD Android Head Units General] wobbletop:
I was so hoping it would work (the .ext file) but no change.

I'm tempted to play with that screen number to see if it makes a difference.
[MTCD Android Head Units General] Montero7o:
Hello

I also tried this solution of "USB Modem" but it does not work either with Android phone Galaxy Note 4 or Galaxy Note 3.

There is a big problem with Wifi connection on the TB706APL even without Bluetooth or other connected accessory. Sometimes it works but it is very rare. The doogle 3G does not work in USB modem but uses the USB port to power the module.

On the other hand in the menus there is no choice for "USB Modem" but only "Wifi" and "Bluetooth"

If someone finds a solution, because without internet an android car radio does not present any interest.
[MTCD Android Head Units General] ikerg:
If you are under warranty...ask for a change or refund. Or check with your seller what's going on. Or open your unit and check by yourself. Post here photos and community will try to figure out if it is something related to any bad connection

Enviado desde mi D6603 mediante Tapatalk
[MTCD Android Head Units General] ZeligPC:
Just for information, I have the same issue on my KGL unit (for Ford Focus, with canbus), every few minutes.

I play Mp3 from a 32 GB pendrive connected to rear USB port using the cable that came with the unit.

The pendrive contains something like 4000 files arranged in folders.
[MTCD Android Head Units General] SomebodySysop:
If your unit is px5, and your problems aren't strictly hardware related, you may want to take a look at Malaysk's ROM. It has solved a lot of problems for a lot of people. https://xdaforums.com/android-auto/...lopment/rom-malaysk-roms-mtcd-device-t3598908
[MTCD Android Head Units General] diefem:
Hi Guys, I´am exchanged my PX3 with Android 5.1.1. to PX5 Headunit. Malyska ROM V2 is currently running on my system.

On PX3 platform i had used the last build RK3066-Headunit-Tool 2.19 (mtc-service) for speed depend volume control (SDVC / GALA). It works great. Unfortunately on my PX5 platform the tool does´nt work. The volume does not change.

I have also tried the tool "GALA / SDVC for Car Radios" from playstore. The "GALA / SDVC for Car Radios"-Tool shows me the (GPS-) speed, but no volume changings depend on speed.

Knows anybody a working GALA / SDVC-tool for PX5 with Android 6?
[MTCD Android Head Units General] samadhi23:
Update MCU solved my problem ... with the 2.43 MCU the unit didn't shutdown after sleep mode ... now I can control when the unit complete goes off.
[MTCD Android Head Units General] careles:
wow, didnt see this coming!

please, dont play with fire... ASK your manufacturer/seller FOR your radio latest update!!
[MTCD Android Head Units General] droc.noles:
Well, at least there are a few reporting this issue. Have to think that there's something common to us all causing the problem. Looks like testing USB drives isn't going to do anything to resolve this problem given your feedback.
[MTCD Android Head Units General] diefem:
Similar to other people here, on my PX5 system with internal canbus (Erisin ES5078A with MCU LM 2.41_1) audio glitches can be observe when music from SD card or USB stick is playing and for example navigation is running. It looks like it correlates with the cpu /memory load. I tested it unter 3 different ROMS incl. malaysk v2 - always the same behavior :(

Maybe the sound buffer is to small
[MTCD Android Head Units General] ikerg:
I first would try the pendrive with less mp3 files (not 4000)

Enviado desde mi D6603 mediante Tapatalk

---------- Post added at 11:40 AM ---------- Previous post was at 11:38 AM ----------

It is strange. All we have same software and I am not experiencing kindk of glitch. Only a micro interruption when wifi connects to my phone

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[MTCD Android Head Units General] Nomader0:
I run a 750GB, 2.5 inch external powered hard drive with 60.000 songs on a PX3 with no problem!!!
[MTCD Android Head Units General] ziggimon:
I think this is limited to some PX5 units.. Which by chance also happens to be what this thread covers. PX3 would be different hardware and software.
[MTCD Android Head Units General] Nomader0:
Mate no reason to be rude, just trying to help. I indicated that mine is PX3 just to show you it is not a ram or CPU problem, since PX3 is by all means inferior.

My advice to anyone having similar issues would be to try a ssd drive, or an external powered drive(the power provided by the USB ports will not be enough) just for test purposes. Do you guys use the included media player? Try to use power amp to exclude this as a reason as well.
[MTCD Android Head Units General] ziggimon:
Not intended to be rude at all. If that's what you felt from my post then I apologize for that. My underlying thought for posting it was that both the hardware arch and software are fairly different from the px3 as in the px5 is Aarch64 and uses a whole different kernel and OS. So I don't see how they compare in terms of bugs/code issues. I personally don't think it's CPU/RAM related either. I do think it's in the software/kernel somehow. Just as you I'm just around to help out.
[MTCD Android Head Units General] ChromeSkull:
If you have rooted using KingOroot (or if your using malaysk's rom) try the app "SetCPU" and force the cpu into 1.2ghz minimum. At least then you'll know if its due to spiking.

I have found my music has stopped skipping or going silent as much with Malaysk's Rom v2. But I have also stopped using the bluetooth mode on my headunit with wifi at the same time. These PX5's have hardware issues with the WiFi antennas. Its used for both bluetooth and wifi and its called a diversity radio. Unfortunately they only used 1 real antennae cable connected to an external antennae and 1 piece of cut wire connected to nothing but the board connection. This setup is proving very unreliable and I've still not gotten around to fixing it myself by taking it to an electricians and having them replace the cut wire with a proper antennae wire with an Mini SMA connector to fit an external antennae.

By the way, with your USB device what format is it in?
[MTCD Android Head Units General] Nomader0:
does the skipping occurs when using a third party media player? eg: poweramp, jetaudio?
[MTCD Android Head Units General] droc.noles:
I tried a Sandisk USB 3.0 drive this AM with about 150 songs or so, and it seemed to be a bit more stable, although there were still a few glitches from time to time. Will need more time to see if this truly is any better. I wish that there was a consistent pattern to this stuttering issue. The "micro interruption" that you mention is very similar to what is happening - when I plug essentially anything in via USB, I'll see a momentary dropout in audio, but the more egregious skipping happens at random, seemingly under load, and lasts no more than 2 seconds at most (if it's that long).

I'm using Malaysk's ROM currently - I like the interface much better. I'll agree in that generally, this ROM performs a bit better when considering these audio glitches, but again, they happen at random, so I'm not sure if this is more of a placebo effect that I'm just perceiving because I value this ROM vs stock Dasaita.

I'll look into SetCPU to see if this helps - will report back once I've had a chance to determine if this method helps. I've also tried to stay away from OBD / phone bluetooth usage, along with turning WiFi off, which again, seems to lengthen the gap between when these glitches occur, but it's still not a 100% solution.

As far as the USB drive format, FAT32. Should I try a different format?

Doesn't seem to matter which third party media player I try to use - no luck in completely absolving the unit of this stuttering issue (Play Music, USB Audio Player set to run through Android, etc).
[MTCD Android Head Units General] wobbletop:
I've asked. The language barrier is making things difficult.
[MTCD Android Head Units General] ChromeSkull:
you could try exfat see if that helps. or EXT4. although that would be harder to transfer files to from windows.
[MTCD Android Head Units General] ikerg:
Afaik, dasaita made their test by using USB pen drives under NTFS format

Enviado desde mi D6603 mediante Tapatalk
[MTCD Android Head Units General] wolfymozart:
Same problem for me. Tried stock rom and Malaysk's ROM on my Erisin ES6405V...

:(
[MTCD Android Head Units General] talds_alouds:
Not sure if his has been covered in the 90+ pages, but is there a list of 3G/4G dongles supported ? I got the xtrons.
[MTCD Android Head Units General] Nomader0:
Actually my USB drive is a usb3 formated as NTFS and works fine
[MTCD Android Head Units General] ziggimon:
I didn't find one for my TB706APL one, so I went with a Wingle (4G Dongle with Wifi hotspot) and that works just fine for the unit I'm using.
[MTCD Android Head Units General] wiecho1:
Hello. My PX5 MTCD Head Unit Discussion Thread [Rockchip PX5 A53 | Android 6.0 | 2GB RAM] can not login to google server. I made a return to factory settings and reset network settings. The web browser works, but I can not get to google play on my account and install the app. Prior to my account was a device Rockchip Px5, and now is identified as unknown device. Will the firmware help? Can anyone know what to do?

Please help.
[MTCD Android Head Units General] matata86:
Hi, I'm having a call problem. Occasionally, the radio disconnects from the phone for a few seconds. Music will begin to play. And the call sound comes from the phone. After a few seconds, it is redirected to the radio again. Is there a solution to this problem?
[MTCD Android Head Units General] semaj4712:
I have been on the hunt for one since the wifi is less than impressive. And a wifi dongle won't work for me because that still uses the wifi...so I ordered a Huawei E1756c that others have confirmed it working. It's only 3g not 4g but as far as I know, nobody in the states has gotten 4g to work yet. So it's better than wifi as far as I'm concerned.

Ill post about it once it shows up, still in the mail.
[MTCD Android Head Units General] droc.noles:
Just tried NTFS for a stretch, which seemed to be more stable for the most part, but still not immune to glitching totally, and I certainly haven't given this format enough run to know if it's truly more stable this way. This is the type of line that keep showing up when the glitching occurs in logcat:

05-24 17:27:27.255 E/VsyncReciver(233): timeout [this=0xab970920]15.735483 ms (63.550640 Hz), buffer[0].count = 961381 phase 48963

I'm also seeing this line show up a bit:

05-24 17:17:29.634 I/Choreographer(31790): Skipped 90 frames! The application may be doing too much work on its main thread.

I have no idea if either of these entries have anything to do with the momentary skipping audio, but these are the only entries that I'm seeing that seem to be suspicious.

Still have yet to give SetCPU a try - will have to try this out soon. CPU-Z is reporting CPU usage at around 15-30% max at all times, so it doesn't appear to be an issue with spiking? Not sure.
[MTCD Android Head Units General] talds_alouds:
Well I got a Huawei e8372 4g. I'll try it out when I get home and let you know.
[MTCD Android Head Units General] semaj4712:
Itll probably work via wifi, but not sure if it will work via the usb
[MTCD Android Head Units General] ziggimon:
Wifi may be poor on many units. In my case I replaced the small antenna with an extra antenna from my old Gigabyte motherboard: http://static.gigabyte.com/Product/2/4337/7286_big.jpg and strapped it inside the car right next to where my Wingle 4G modem/Wifi-AP is strapped in also and thats giving me a decent signal. I'm getting up to 7MByte/s download rates.

I deliberately chose this option as I didn't want to do 3G.

EDIT: I have the Huawei e8372 and it doesn't work as normal 4G. Only as wifi.
[MTCD Android Head Units General] semaj4712:
Good to know, from what I understand via 3g i should get around 4/5MByte down so that is more than enough for me. If I don't then I will do as you did, I know about the wifi antenna mod to fix the reception issues, but I dont really need wifi if my 3g dongle works and then there is not problem
[MTCD Android Head Units General] diefem:
Yesterday I have done a few tests to prevent for audio glitches when music player and IGO navigation parallel runs.

I have found a work around solution: Installing IGO completely (all data incl. maps) on internal Storgage causes in no audio glichtes more! Maybe you can (temporay) go with it!

I guess transfering of Navigation Data from SD-GPS-Slot at the same time music is streaming data from another external device like USB or SD-Slot generate heavy load and provoke minor stream-breaking issuses, which causes in glitches. I think that is not an real "to small external to internal data stream capacity" hw-issuse. i guess it is an effect of to small sound buffer settings or wrong stream priority.
[MTCD Android Head Units General] Nomader0:
I still don't have a PX5 board to test, but do me a favour:

run power amp and go to settings-->audio-->advanced tweaks--> and change the settings for audio buffer size and audio thread priority.

see if that helps..
[MTCD Android Head Units General] kovlaszlo:
I was using Roehsoft "Automatik SDVC für Navigation" and I also posted about it: post in this thread. But DO NOT waste money on it, at least not for the moment. I received my replacement HU, and it does not work on the new unit. The notifications about changing volume comes, but in fact it has no effect on the volume. Now I feel completely stupid and wondering if the changing volume was only in my imagination. I can hardly believe, I also remember that I was playing with the intensity of volume adjustment, and found the sufficient setting. I am planning to install the latest ROM and GS MCU as soon as I can take the time, and then I will try again. I am going to post update on this
[MTCD Android Head Units General] macandnews:
Erisin does not post firmware updates.

If you want to get an update for your car radio, please write to: easyrising88service@erisin.com
[MTCD Android Head Units General] talds_alouds:
Hmmmm well I can say that the Huawei e8372 dongle doesn't work. I just get a red light.
[MTCD Android Head Units General] Nomader0:
you can also try changing the default launcher to something else.. as these errors are UI related
[MTCD Android Head Units General] droc.noles:
I will give this a shot when I get off from work today. Thanks for the insight.

I haven't changed the default launcher that Malaysk implemented with his ROM, but I had changed launcher when using Dasaita's stock ROM before (Google Now) - stuttering was still present. Will see what a few other launchers do to impact audio performance.
[MTCD Android Head Units General] ikerg:
I have car launcher pro and I never noticed any stuttering problem

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[MTCD Android Head Units General] diefem:
Thank you for preventing me loosing money. I have testet also "Automatic SDVC for Navigation" with no luck. The volume doesn't change. I had canceled the order quickly in playstore to got my money back.
[MTCD Android Head Units General] droc.noles:
Just tried car launcher trial and Poweramp with audio set at highest priority with buffer extended - still stuttering away. Basically the same pattern. Every few minutes about 7-8 quick pops of interruption that last no more than two seconds, then back to normal, with a few minor artifacts in between, but those instances are harder to hear.

Losing faith, but at least with others reporting the same problem, I'm hoping it's just something in software. Very annoying.
[MTCD Android Head Units General] Madyen:
Mate,

will you try this out? reconnect your cables (and push your hu harness a little bit harder in the unit) again.. maybe that helps?

Success :good:

BrGd

Madyen
[MTCD Android Head Units General] droc.noles:
Definitely worth considering. I had hoped to not have to pull the stereo back out again until I add an external amp, but I may have to break down and do it earlier just to be sure given this issue.
[MTCD Android Head Units General] droc.noles:
Still no luck - just reconnected all, same result. Still experiencing the same periodic stutter.
[MTCD Android Head Units General] rdp_idn:
i just got xtrons px5 mtcd_GS_V2.43.1 10.1 inchi

i wonder in youtube why i can't playback more than 480P ? 720p and 1080p option are not available... anyone care to share how to fix this ? thanks
[MTCD Android Head Units General] bettuccio:
I am also looking for an SDVC that lowers volume according to speed! I've tried different types but nobody works. I also tried what you mentioned. I remember that on my former unit almost all worked now with the px5 and MCU none of these applications work! Now I will try to install a xposed module of px3 3188 and see if it works.
[MTCD Android Head Units General] gsrcrxsi:
Your screen is only 600p resolution. You can't play 720 or 1080
[MTCD Android Head Units General] badbad2000:
gosh, so the px5 cant have Bluetooth and wifi work at the same time? I just ordered a TPMS using Bluetooth (each tyre have one) ......:crying:
[MTCD Android Head Units General] sirleeofroy:
This seems to vary, I have an Xtrons PX5 and I am able to use both WiFi (hotspot from my phone) and Bluetooth (phone connected for calls) and I have no issue.

I stream data using the WiFi whilst playing Deezer and when I get a call over the Bluetooth connection, everything works as it should.
[MTCD Android Head Units General] ChromeSkull:
I wish I was one of the lucky ones :(
[MTCD Android Head Units General] FauxDreams:
Both my PX5 units can use wifi & BT at the same time no issue as well.

I have a USB WiFi 4g stick in both cars & BT connected at all times.

Cheers

Mat
[MTCD Android Head Units General] badbad2000:
good to hear.. pray my unit will do the same :D
[MTCD Android Head Units General] diefem:
My Erisin PX5 is connected to my mobile phone over bluetooth for calls/ad2p and WLAN hotspot for 4G all the time I am driving. No drops or other audio issuses during playing files from storage or cloud, except heavy USB/ SD card load beside.

I think currently its not fair saying PX5 has a poor antenna design in general. Maybe some Manufactor have quality problems. Just my two cents.