Android HU forgets radio channels after powercycle - MTCB Android Head Units Q&A

Hi all,
A couple of months ago I bought a second hand car with a Android head unit. It's a pretty old rk3188, MTCD_MX_V2.59, Android 5.1.1. 1024MB. I have been reading quite a lot on this forum to get introduced into the magical world of MCUs and ROMs
The unit was full of apps and very slow. My goal is just to use it for radio and Android Auto. So I did a factory reset of the unit, and bought an Android Auto USB dongle. I am satisfied with the boot time and with Android Auto.
There is just one thing that is quite bothersome. If I set radio channels in the standard Radio app (find a frequency, and then hold a pre-set button until it displays the current frequency) this works fine for the rest of the drive. However, this configuration sometimes becomes lost. I think after the unit has been powered off for a full day or something. Mostly if I shut down the car, and start it again within an hour, the radio channels are still there. If the configuration is lost, it is lost forever, and I have to manually set the pre-set buttons again.
Does this issue sound familiar to anyone? Thanks a lot for you help!
edit: oops, I should have posted this in the MTCD section..

Related

Is it possible to install a different overlay?

Hi, I have recently installed an Xtrons car stereo running Android KitKat 4.4, there are a few annoying issues with it like when it boots up its always automatically starts on a static channel, the time resets back to 00:00 every time I turn the car off and a few other minor things. Anyway, I was wondering if there is a way to install a different overlay of Android like you can on a phone, or are there any decent ones out there?
Thanks for any help offered
adambart84 said:
Hi, I have recently installed an Xtrons car stereo running Android KitKat 4.4, there are a few annoying issues with it like when it boots up its always automatically starts on a static channel, the time resets back to 00:00 every time I turn the car off and a few other minor things. Anyway, I was wondering if there is a way to install a different overlay of Android like you can on a phone, or are there any decent ones out there?
Thanks for any help offered
Click to expand...
Click to collapse
You have not wired the unit in correctly. You need to give the unit a permanent power feed to it remembers time and settings.
Guy

Few questions about my avin avant 2

I've got a new avin avant 2 system build in my car. I tried contacting the developer of the system for a few questions, but he won't reply.
But i see that it is a mtcb device so i thought I ask it here.
1: When turning off my car while playing spotify it would keep playing until the device turns itself completely off after 30 seconds. now I see that you can pause it by using tasker of some sort. But when I turn my car back on (cold boot) it starts spotify again but not play the last song it was when turning it off. I have to search the song again and then play it again from the beginning. Is there something to do about this or is it a spotify limitation.
It would be awesome if it shows the last song and I only have to press play instead of searching it again. Or better it would start itself. A friend of mine told me he has an android head unit himself and it would play spotify where it left off. Don't know if that's a lie though
2: Is there any profit when installing an custom firmware? Let's say the one from Malaysk? Would it be faster or something? I'm not really a root guy so xposed is something I'm not interrested in (for now).
What would be the benefits?
3: maybe this is a stupid question so my apologies beforehand: I want to replace the radio software with a different one because when a radio station name is to long it would take up 2 rows and the 6 quick station buttons are placed a row below, behind the search buttons. So choosing a station is a difficult task if a radio station name is too long. I saw a different radio software where the search buttons are not present on the lower row but more at the top. that would be ideal. But I downloaded a new apk from xda. placed it on a sd card. tried installing the apk. But it says this app cannot be installed. Am I doing something wrong? (probably yes ).
4: I have a universal avant 2 (6'95") Which does not have a reset button (at least at the front) It has touch buttons (Eject dvd, power, home, volume + and volume -) Is there a way to go into recovery without a reset button? and what if the radio hangs?
I think this is it for now.
My unit is a Joying Jeep specific model (MTCD and Android 5.1) with the Malaysk V4 ROM, so some of this might not apply to your Avant
1 - i think this has to do with Internet access. Specifically when you turn on your vehicle and the head unit either returns from sleep or boots. In my month or so of use, I have found that I have seen all scenarios. Sometimes it boots to the last song and I can play from where it left off, sometimes it just starts the song over again, sometimes I start from scratch. I think that if you have an internet source when the radio boos or wakes up, then it will find the last song. If you do not have internet access, then it is a crapshoot. I try to turn on my hotspot when I hit my remote start, and I have had much more success playing the current/last song. However I do Pause Spotify right before I shut off my vehicle.
2 - you have to read a ton to figure out all the benefits. For most I would assume the expanded storage. On my Joying initially only 2 gigs were available for apps, but with Malaysk you get the full 12 or 13 or whatever. And the DPI is adjusted. On the stock Joying ROM everything was a little too big, but with Malaysk, things fit the screen better
3 - I dont use the actual Radio at all, I even disabled the app. So I dont know, but i think Malaysk fixes this
4 - no idea
CadillacMike said:
My unit is a Joying Jeep specific model (MTCD and Android 5.1) with the Malaysk V4 ROM, so some of this might not apply to your Avant
1 - i think this has to do with Internet access. Specifically when you turn on your vehicle and the head unit either returns from sleep or boots. In my month or so of use, I have found that I have seen all scenarios. Sometimes it boots to the last song and I can play from where it left off, sometimes it just starts the song over again, sometimes I start from scratch. I think that if you have an internet source when the radio boos or wakes up, then it will find the last song. If you do not have internet access, then it is a crapshoot. I try to turn on my hotspot when I hit my remote start, and I have had much more success playing the current/last song. However I do Pause Spotify right before I shut off my vehicle.
2 - you have to read a ton to figure out all the benefits. For most I would assume the expanded storage. On my Joying initially only 2 gigs were available for apps, but with Malaysk you get the full 12 or 13 or whatever. And the DPI is adjusted. On the stock Joying ROM everything was a little too big, but with Malaysk, things fit the screen better
3 - I dont use the actual Radio at all, I even disabled the app. So I dont know, but i think Malaysk fixes this
4 - no idea
Click to expand...
Click to collapse
Thank you for your reply,
My biggest question is: Do you experience a speed difference between stock and Malaysk rom? or is it about the same? I experience a fast downgrade of speed while using the radio. I wish it was possible to auto clean processes every couple of minutes or so. But maybe the Custom Firmware handles the speed better?
andytuinman3 said:
Thank you for your reply,
My biggest question is: Do you experience a speed difference between stock and Malaysk rom? or is it about the same? I experience a fast downgrade of speed while using the radio. I wish it was possible to auto clean processes every couple of minutes or so. But maybe the Custom Firmware handles the speed better?
Click to expand...
Click to collapse
you could probably set that up with some app. Malaysk has the "speed" option, rocket icon, that cleans something. ES Task Manager has a way to kill stuff, and you can add apps to the ignore file. I had mine set to ignore Spotify and Google Maps and I would kill stuff like that.
I only had stock for about a week, so I can't really say if there is a speed difference. It is all a matter of setting expectations I think. Nothing is lighting fast, it is not a Samsung S7 Edge in the dash. I also went through and disabled as much stuff as possible.
For the most part, I just use my Joying for 3 things:
Music - Spotify
GPS - Google Maps, sometimes Waze, sometimes iGO
Bluetooth - phone calls or audio from my phone
So I have disabled a ton of stuff. There is still some lag, especially with Google Maps. It is worth noting I also had lag using Google Play Music and Google Calendar. I bailed on Google Music for Spotify. However i just like Google Maps better than any other Nav, so I have learned to deal with it. I also have a calendar app, but i dont use that every day. For the record it is aCalendar
CadillacMike said:
you could probably set that up with some app. Malaysk has the "speed" option, rocket icon, that cleans something. ES Task Manager has a way to kill stuff, and you can add apps to the ignore file. I had mine set to ignore Spotify and Google Maps and I would kill stuff like that.
I only had stock for about a week, so I can't really say if there is a speed difference. It is all a matter of setting expectations I think. Nothing is lighting fast, it is not a Samsung S7 Edge in the dash. I also went through and disabled as much stuff as possible.
For the most part, I just use my Joying for 3 things:
Music - Spotify
GPS - Google Maps, sometimes Waze, sometimes iGO
Bluetooth - phone calls or audio from my phone
So I have disabled a ton of stuff. There is still some lag, especially with Google Maps. It is worth noting I also had lag using Google Play Music and Google Calendar. I bailed on Google Music for Spotify. However i just like Google Maps better than any other Nav, so I have learned to deal with it. I also have a calendar app, but i dont use that every day. For the record it is aCalendar
Click to expand...
Click to collapse
What do you mean by disabeling alot of stuff? WHat kind of stuff and how do you disable it? maybe i can clear some memory too in that way. sorry if I ask stupid questions .
Well I just go through Settings > Apps and then go through and disable stuff i do not need.
One example is the Radio, i never use it, so I clear cache, clear memory, then disable. I will have to a take a look to see what all I disabled. I know the Malaysk ROM will add a bunch of stuff that some people like, but I have no need for, such as Titanium Backup, so I got rid of it. Joying adds Torque and some Live Wallpapers, so say you dont use those ever, just go into the App settings and disable it

Bluetooth "Phone Audio" turns off and cannot turn back on

I believe I have narrowed it down to the phone as the feature works after I reboot the phone. I noticed this when I got in the car and only the Media Audio led was lit on the receiver. When I go to the bluetooth menu on the phone and select the paired device (car receiver), Phone Audio is unchecked and I cannot re-check it. I have tried deleting the phone from teh car receiver and also the device from the phone and repairing and setting it up. It will connect and cannot select 'Phone Audio'. I also noted that after a reboot, bluetooth feature is turned off and needs to be turned back on. Once I turn it back on and click the gear on the BT device, I can turn on and off the Phone Audio and it will work for a while.
This is an 'all of a sudden' development as I have been running the same firmware and ROM for 9+ months. I am S-off and am running firmware 3.35.401.12 with the ViperOne 4.3 ROM. I have upgraded programs from the play store, but cannot figure out what might be causing this. Can anyone here help me fond a solution?
Thanks!
Keith
So just to clarify, you're using BOTH phone and media Bluetooth connections to the one single bluetooth media AND voice enabled head unit in the car?. One receiver?.
Do you have any apps running that will disable things when battery power gets low, like snapdragon battery guru?. Does your rom have any such features built in?.
Make sure both devices bluetooth lists are clear of old devices that no longer have access on resonable terms. Just to make sure its not scanning for another device as a primary.
Make sure you car audio system is running the latest firmware. It can usually be updated via cd/dvd/sdcard.
As mad as it seems, make sure the time is correctly set on both devices.
Beamed in by telepathy.
Yep, yep and yep.
Battery is full , I do not have battery guru installed. I did not change anything. It just now needs to be rebooted before it will connect to BT Phone Audio. Medial Audio connects and works properly, just as it always has.
I have a single Pioneer Premier head unit that I have used for years with multiple phones. If I reboot the phone before it tries to connect, it will connect and Phone Audio works. When it is 'locked out' (my term), I cannot select the block on the that is labeled 'Phone Audio' to check it. As the screenshot shows, it is 'unchecked' and no amount of touching it will check it. The only way to 'check' it is to reboot the phone. Oddly, it reboots with bluetooth turned off and when I turn it on, usually, it is already enabled (Phone Audio).
Thanks for the help,
Keith
After a little research it would appear that, apart from being right about the max enroled devices allowed is 3, "discoverable mode" is required.
Did you connect the phone to the radio or the radio to the phone?. Which discovered which for pairing?. Try pairing the other way from the way you did.
Can you access any options by holding or tapping on any of the fields in the picture above. Something to do with pbap if you can find it and turn it off, most likely under contact sharing. If not, dont worry.
Try turning contact sharing off or see if the stereo will copy them and store them so you can turn that feature off.
Other than that it could just be an incompatibility between the devices. It is not unknown for car audios to be crap hardware.
Beamed in by telepathy.
I am on teh same page of keithspg
I recently resetted my HTC M9 and as coinsequence I have been obligated to reinstall all BT devices (car, 2 headest, laptop)
It worked well (as in the past) for few days but now I have the same issue : I cannot switch on the audio phone !!!
Below the picture:
I could not find any other solution than to wipe the ROM and reinstall. I am now running viper 6.0. no problems. If you are not soff, you may want to ruu it. If you are soff you may want to wipe and install again whichever ROM you are running.
Keith
keithspg said:
I could not find any other solution than to wipe the ROM and reinstall. I am now running viper 6.0. no problems. If you are not soff, you may want to ruu it. If you are soff you may want to wipe and install again whichever ROM you are running.
Keith
Click to expand...
Click to collapse
I am S-On and completely stock
I cannot wipe my smartphone (it is a company smartphone)
I fixed the problem with a simple soft reboot
Inviato dal mio HTC One M9 utilizzando Tapatalk
I am also having the exact same issue. I still have not been able to track down which app is the one causing this conflict. I have also done a factory restore and that seems to have worked for a time but the issue started again. It may be unrelated but... Have you changed the themes? I think that's one of the last things I did before it stopped working. Also restarting the phone "fixes" the issue for one connect/disconnect, but after the bluetooth is disconnected it will no longer allow to use phone audio. I have gone into the settings for the "Paired Bluetoth devices" and I am unable to check "Phone audio". It is not grayed out but it doesn't work either. This issue is driving me crazy, I hate to have to restart the phone every time I get in and out of the car just because the bluetooth wont sync. That being said, I have another clue into the issue. Today I was using the bluetooth in the car while on a phone call and transitioned to my Jawbone Icon when I exited the car flawlessly. I turned off the car, turned on Jawbone (so there wouldn't be a conflict of the Jawbone trying to connect to the phone while it was still connected to the car) Immediately the Jawbone connected and I was able to carry on with the conversation. I was really happy about this. However, when I was done with my phone call I turned off the Bluetooth and turned off the Jawbone. About an hour later I received a video through Whatsapp and when I played it there was no volume. When I pressed the volume button on the phone the volume bar had the Bluetooth symbol!!! The Bluetooth had been off for quite a while now and there where no Bluetoth devices present.
Hopefully this gives some insight into this issue that will help resolve it. Thank you very much!
I have also tried the soft reset and the issue persists.
HTC One M9 Not Rooted
Android 6.0
Patch Lvl Dec 1, 2016
Sense 7.0
Software # 3.37.605.19
This is currently happening to me too. No fix yet. I tried this on other bluetooth devices that are hands-free capable like my portable speaker, and the same issue occurs.
HTC One M9
Android Revolution HD 20.0
Android 6.0
Sense 7.0
S-off
I am having the same issue
HTC One m9
Viperonem9 5.1.0
I have tried wiping / reflashing and still haven't resloved the issue.
this is super annoying I hope someone finds a fix soon
The issue is randomically annoying me too but , as I said few time ago, fortunately I am fixing always doing a restart
Inviato dal mio HTC One M9 utilizzando Tapatalk
I have recently had this problem on my stock ROM HTC 10. The HTC Australia website online chat actually gave me a solution which worked (!)
Settings > Apps > ... (menu) > Show system > Bluetooth Share > Storage > Clear Data
New findings on my phone.
I have an M9, rooted, unlocked and s-off. It has a stock ROM. I have had this issue for a while now. I don't know when or how it started. Everything used to apparently work fine. Could have been some update or an app I added at some point in time that possibly we all share. I had been restarting the phone as well to get the "phone audio" to work. That became excruciatingly tedious. I did find that, on my phone at least, placing the phone in airplane mode, waiting a moment for that to kick in, then starting up the Bluetooth, brought it up with "phone audio" checked. Then I would just turn airplane mode off.
Still a ridiculous way of getting it to work correctly. However, if this technique works for others as well, then I am thinking that airplane mode is disabling a service or something that is keeping it from connecting correctly. I will be looking into this as I hope some more savvy folks will be as well. If someone does figure it out, please share.
---------- Post added at 11:24 AM ---------- Previous post was at 10:30 AM ----------
I found another thing that might be causing the issue by reading other forums. I made the adjustment on my phone this morning and I believe it to be working at this time. (For now anyway). I think it might be related to location services accuracy settings. There are a couple of ways to get there. In Bluetooth settings when the Bluetooth is off, you might see a link to it on the initial Bluetooth page. Otherwise, I found them under, Settings/Location. I have my mode set to "Battery Saving". But under the triple dot should be Scanning. Here I turned off Bluetooth scanning and things seem to be doing okay thus far. Just seems like it takes a few seconds longer to connect to my devices. However, so far, no issues. I may be speaking too soon. If I find it didn't work, I will correct myself in another post.
Best Regards,
Lyndon
Same problem. Either after using my Fiat Car bluetooth system, or after my BLT bluetooth headset, my Phone audio stops and I have to restart my phone.
On my bluteooth headset I only use the "media" audio.
I am using a Samung galaxy 3 watch also.
Huib
Thank you!
[/COLOR]I found another thing that might be causing the issue by reading other forums. I made the adjustment on my phone this morning and I believe it to be working at this time. (For now anyway). I think it might be related to location services accuracy settings. There are a couple of ways to get there. In Bluetooth settings when the Bluetooth is off, you might see a link to it on the initial Bluetooth page. Otherwise, I found them under, Settings/Location. I have my mode set to "Battery Saving". But under the triple dot should be Scanning. Here I turned off Bluetooth scanning and things seem to be doing okay thus far. Just seems like it takes a few seconds longer to connect to my devices. However, so far, no issues. I may be speaking too soon. If I find it didn't work, I will correct myself in another post.
Best Regards,
Lyndon[/QUOTE]
Thanks - I believe this has fixed the issue for me!
Brett
Late post, but just ran into the same problem with my One M8 with final Viper ROM and my newly installed Pioneer BT head unit. Turning off BT scanning on the M8 worked for me as well.
Bluetooth audio and or media check boxes can't be checked
I was able to resolve the issue on my HTC One M9 by turning WiFi scanning and Bluetooth scanning off, updating the Bluetooth checkboxes for audio and media (both of which were unchecked and wouldn't allow me to check them), and turning the scanning back on.

"Unknown artist" on car bluetooth connection after Marshmallow update

Hi folks,
I frequently stream NPR / This American Life or similar apps in my car (2015 Toyota Highlander), via bluetooth to the car's audio. Until today, the name of whatever title I was streaming would show up on the car's screen. Basically metadata... name of the show, name of the episode, time... that sort of thing.
Today I updated my G3 (D851) from Lollipop (20g) to Marshmallow (30e). Immediately after finishing the update, any streamed content shows on the car screen (head unit) as "Unknown Artist" and similar blank entries instead of the name of whatever is streaming.
That's really annoying. How can I fix this? Again, it's definitely a Marshmallow thing. Never once did this on Lollipop.
TIA!
Frankenscript said:
Hi folks,
I frequently stream NPR / This American Life or similar apps in my car (2015 Toyota Highlander), via bluetooth to the car's audio. Until today, the name of whatever title I was streaming would show up on the car's screen. Basically metadata... name of the show, name of the episode, time... that sort of thing.
Today I updated my G3 (D851) from Lollipop (20g) to Marshmallow (30e). Immediately after finishing the update, any streamed content shows on the car screen (head unit) as "Unknown Artist" and similar blank entries instead of the name of whatever is streaming.
That's really annoying. How can I fix this? Again, it's definitely a Marshmallow thing. Never once did this on Lollipop.
TIA!
Click to expand...
Click to collapse
what app are you using, I think the protocols are set by the app not the OS. I know some of my music players support A2DP and others don't. Try different apps, you can also try forgetting the pair and repairing, or checking the settings of the pair to make sure everything is enabled. I had a giltch once where when i paired my phone to my car it only had a basic connection but nothing else worked and i had to repair. If you are using stock roms then I doubt it's Rom related. Some other things you could try is powering down the phone pull battery and reboot, just to fully reset all hardware, or a hard reset of the rom just incase there was an issue during the update process. Just some thoughts.
The two apps I use are the NPR News app and the This American Life app. Been using them for years. They both fine yesterday morning, but immediately after the update to Marshmallow the car screen reports Unknown Artist etc. Forgetting the connection on both ends and re-pairing doesn't fix it. The ROM is the stock 30e Marshmallow ROM from LG.
I've done a battery pull; didn't help. I heard early Marshmallow builds in general had some bluetooth issues but figured they would be worked out by the time a second release was made for our phones.
I will check the pair settings... haven't actually done that yet. Maybe there's some new option in there that's off by default.
Thanks to all for any other thoughts.
So, for a test I deleted ALL Bluetooth profiles on both the car and the phone, then pulled the battery on the phone, turned off the car, restarted the car, and rebooted the phone. PRior to this I checked the profile settings; all the boxes were checked.
That done, I re-paired the phone to the car.
I then played something from the This American Life app. Blank info showed up on the car screen. Tried the NPR app, playing a story from there. Blank info. In a fit of pique I poked back and forth between the car's home screen and it's audio selection screen, and returning to the home screen lo and behold there was the info about what was playing! How strange.
I switched back to This American Life, and the info on the car screen did not change... it stayed as the info from the program I was playing before. Went into the car's audio settings and back out to home screen. Now the info refreshed.
My current hypothesis is that under Lollipop, the phone "pushes" the metadata to the car, and it picks it up instantly. Under Marshmallow, it seems the car has to pull the data, and the screen gymnastics I was doing accomplished this.
I will test the theory by installing the apps on my Lollipop tablet, and trying to play them on the car, and seeing what the results are.
Marc
Okay. I tested on my now-marshmallow phone and my lollipop tablet.
Anytime I play from an app like this American life which I used as my test platform from my lollipop tablet, it immediately displayed on the cars home screen the metadata for the show.
Anytime I used my marshmallow phone to do the same thing with the exact same version of the app the metadata did not show on the home screen no matter how long I waited, however if I went into the program details on the car by pushing the section on the screen where the details should be it would then display the details. If I back out to the home screen again the metadata remains visible there.
It's very clear because this change in how it works on my phone happened immediately after upgrading to marshmallow that this is a difference between how marshmallow and lollipop handle the data. It seems that under lollipop data is automatically pushed out to the car upon starting playback where as under marshmallow the car seems to have to refresh or pull the data from the phone.
Again, this works the same way for several apps... not just This American Life.

PX5 no sound after wakeup

Hi guys,
I bought andoid car system Wondefoo with PX5 (octacore) + 4GB/32GB with DSP chip for Ford.
I have serious trouble with this car system - after switch-off car radio went sleep, but sometime when I switch-on car and radio wake-up, system beeps are working, but player, or FM radio cannot work - I have to push reset button and after reset it works until radio going to sleep and wake-up.
Did anyone simillar problem with PX5 radio??
Hi, I have similar no sound problem with Wondefoo PX5 4GB/32GB DSP unit (for VAG). This problem happens only when system wakes up from sleep, never after a cold boot. In my case, system beeps are working but otherwise there is only increased amount of white noise from the speakers. I haven't found a solution, except for disabling sleep to force a cold boot every time.
Another annoying problem with my unit is that Wifi and Bluetooth are often unavailable after a cold boot. Wifi adapter MAC address is set to value 02:00:00:00:00:00 when this problem happens. Rebooting fixes also this problem, and after a successful boot Wifi and Bluetooth work fine unit next shutdown. So , I think it could be a software bug in initializing the radio chip. Have you seen this issue with your unit?
What is the software version on your unit? My radio has MTCE_XRC_V2.89_2 and px5-userdebug 8.0.0 OPR5.170623.007 eng.hct.20180706.161540 test-keys.
have either of you guys found resolution to this problem? I don't have an issue with the audio, but after waking up from sleep my Wi-Fi and Bluetooth no longer are available. My unit is a seicane model, but it has exactly the same build number and MCU version. Their support or telling me that I should replace my Wi-Fi module, but seeing as others are having the same issue I would think this is a software problem. I have about 10 days remaining on my ability to return it to Amazon. And I'm leaning heavily towards doing that. Unfortunately I really like their custom faceplate match to my vehicle.
erkme73 said:
have either of you guys found resolution to this problem?
Click to expand...
Click to collapse
I haven't found a solution to the Wifi+BT problem. I tried upgrading system software to the newer version that is made available in this post but it did not fix it.
I have started thinking that perhaps the Wifi+BT issue could be related to bad electrical connection between the motherboard and the radio chip. Now that the weather is colder, Wifi and BT never work when starting the car in the morning. Anyways, this is pure speculation. If I have time, I will open the radio and have a look.
That's a very interesting observation. I live in Middle Tennessee and it's recently started getting colder, and I've noticed that I have to do a restart twice sometimes. there have been enough random post about Wi-Fi and Bluetooth not working after waking up on various threads at different forms that I thought for sure this was a software issue. The manufacturer has offered to send me a new Wi-Fi module, and I declined mainly because it wouldn't arrive before my return window closes
Did you have any issues with being able to sideload apks? I can't do that. No errors it just blinks and goes back to the directory screen. I also don't have contacts or calendars listed as sinkable items in my account sync settings. Each of these individual issues aren't enough for me to return the device, but when taken as a whole it's a bit too frustrating.
Set sleep timer in > SETTINGS > CAR > EXTRA SETTINGS >
Set it to 1HR
AndroidAutoShop said:
Set sleep timer in > SETTINGS > CAR > EXTRA SETTINGS >
Set it to 1HR
Click to expand...
Click to collapse
I can't speak for the original two posters, but that doesn't address the problem after sleep. The max time is 1 hour, but obviously by morning, it's been longer than that, and the problem arises again.
FWIW, I just initiated a return of my Siecane unit (thanks Amazon) and have ordered a replacement. If it's a hardware issue, this should put it to bed. If the problems remain, it's going back and I'm trying Joying or Pumpkin (or anything other than Siecane). Thank God I bought this on Amazon and not through AliExpress. Certainly worth the higher retail price to have that protection.
Have the exact same issue with my BT an WLAN and also the no sound Problem. Annoying. First few months the unit works great without the problem with WiFi and BT. Now the whole radio sucks like hell without any Connection. I will try order a new BT WiFi Module for a few bucks from AliExpress. Search WLAN px5 there.
I have the issue with white noise after wake-up from sleep mode on my Eonon unit PX5, Android 8. No sounds, just white noise and beeps when I touch the screen.
I installed Malaysk ROM but the problem persists. On cold starts, the sound is normal.
I'm having the exact same issues as described by you guys. PX5. Android 8. Hal9k Mod v3.1. Newest MCU flashed.
No sound after fast boot no matter what. Sound works perfectly after a cold boot. I will donate $10 to the whoever can fix this issue or find a good workaround via paypal.
Fredik said:
Hi guys,
I bought andoid car system Wondefoo with PX5 (octacore) + 4GB/32GB with DSP chip for Ford.
I have serious trouble with this car system - after switch-off car radio went sleep, but sometime when I switch-on car and radio wake-up, system beeps are working, but player, or FM radio cannot work - I have to push reset button and after reset it works until radio going to sleep and wake-up.
Did anyone simillar problem with PX5 radio??
Click to expand...
Click to collapse
mkuka said:
Hi, I have similar no sound problem with Wondefoo PX5 4GB/32GB DSP unit (for VAG). This problem happens only when system wakes up from sleep, never after a cold boot. In my case, system beeps are working but otherwise there is only increased amount of white noise from the speakers. I haven't found a solution, except for disabling sleep to force a cold boot every time.
Another annoying problem with my unit is that Wifi and Bluetooth are often unavailable after a cold boot. Wifi adapter MAC address is set to value 02:00:00:00:00:00 when this problem happens. Rebooting fixes also this problem, and after a successful boot Wifi and Bluetooth work fine unit next shutdown. So , I think it could be a software bug in initializing the radio chip. Have you seen this issue with your unit?
What is the software version on your unit? My radio has MTCE_XRC_V2.89_2 and px5-userdebug 8.0.0 OPR5.170623.007 eng.hct.20180706.161540 test-keys.
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AndroidAutoShop said:
Set sleep timer in > SETTINGS > CAR > EXTRA SETTINGS >
Set it to 1HR
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erkme73 said:
I can't speak for the original two posters, but that doesn't address the problem after sleep. The max time is 1 hour, but obviously by morning, it's been longer than that, and the problem arises again.
FWIW, I just initiated a return of my Siecane unit (thanks Amazon) and have ordered a replacement. If it's a hardware issue, this should put it to bed. If the problems remain, it's going back and I'm trying Joying or Pumpkin (or anything other than Siecane). Thank God I bought this on Amazon and not through AliExpress. Certainly worth the higher retail price to have that protection.
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sambadii said:
I have the issue with white noise after wake-up from sleep mode on my Eonon unit PX5, Android 8. No sounds, just white noise and beeps when I touch the screen.
I installed Malaysk ROM but the problem persists. On cold starts, the sound is normal.
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foto55 said:
I'm having the exact same issues as described by you guys. PX5. Android 8. Hal9k Mod v3.1. Newest MCU flashed.
No sound after fast boot no matter what. Sound works perfectly after a cold boot. I will donate $10 to the whoever can fix this issue or find a good workaround via paypal.
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Hello All
Here is the solution
I had the same problem since the beggining. The only solution was that i put the settings at SETTINGS > CAR > EXTRA SETTINGS > 30 sec
It did do the job but as you guys mentionned the radio was always starting after deep cold instead of sleep. It was still pretty fast but hey who doesn't want the screen to appear right away.
Like the last post, I did update to Hal9k Mod 3.0 . I did try again, same issue.
I was told to update the mcu. So I did to the mtce_gs_v1.94
And here is when everything was possible .
I know that the issue we have is because of the Amp of the bose system that for some reason is not starting after or something like that (don't remember exactly since i read that months ago)
So by updating the MCU, after restarting I had no sound but white noise (like when you listen to radio but there is no channel)
This is when you have to go to Hal9k mod settings.
then in manage applications. then you gotp applications that do not close when sleep and you choose ''amplifier''
and voila
hope it helps. I did try 6-7 times now and no problems anymore.
So have fun and thank you for the donations
Let me know if need some pictures
What you're saying makes sense to me but I don't have an "Amplifier" app to chose. I've even selected every possible app from the dropdown list and still nothing.
It might be because I have the MTCE patch form here https://forum.xda-developers.com/android-auto/mtcd-software-development/mod-cs-x-mod-mtcd-e-mcu-firmware-t3816042
I'll try with another firmware to see if it works. I have the XRC system btw.
Just in case those of you that are on this thread haven't found the solution to the wifi/bt when cold, look here: https://forum.xda-developers.com/an...o-wifi-bluetooth-waking-t3852206/post78313081
It's a long thread, and the solution appears around page 7-10. It is a hardware issue - an incompatible IC that needs to be replaced (or main board needs to be swapped). Resellers have fixed this for some that are still under their year warranty.
Jkteam said:
Hello All
Here is the solution
I had the same problem since the beggining. The only solution was that i put the settings at SETTINGS > CAR > EXTRA SETTINGS > 30 sec
It did do the job but as you guys mentionned the radio was always starting after deep cold instead of sleep. It was still pretty fast but hey who doesn't want the screen to appear right away.
Like the last post, I did update to Hal9k Mod 3.0 . I did try again, same issue.
I was told to update the mcu. So I did to the mtce_gs_v1.94
And here is when everything was possible .
I know that the issue we have is because of the Amp of the bose system that for some reason is not starting after or something like that (don't remember exactly since i read that months ago)
So by updating the MCU, after restarting I had no sound but white noise (like when you listen to radio but there is no channel)
This is when you have to go to Hal9k mod settings.
then in manage applications. then you gotp applications that do not close when sleep and you choose ''amplifier''
and voila
hope it helps. I did try 6-7 times now and no problems anymore.
So have fun and thank you for the donations
Let me know if need some pictures
Click to expand...
Click to collapse
Try Hal9k mod settings and make not close when sleep and you choose ''amplifier" after few times hu go to sleep again no sound bug happened
Sent from my G8141 using Tapatalk
Still no solution to this problem found. Bump.
Hello guys. I bought px3 hu with Android 8.1 i have same issue with HU. After deep sleep wakeupno sound from HU only solution to get back sound is restart of HU. Who can says what is here a problem,software or hardwer. I have warranty for HU if i just get another its help?
rseke said:
Hello guys. I bought px3 hu with Android 8.1 i have same issue with HU. After deep sleep wakeupno sound from HU only solution to get back sound is restart of HU. Who can says what is here a problem,software or hardwer. I have warranty for HU if i just get another its help?
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Hi, try putting the ACC shutdown timer on 30 minutes. see if it helps.
the setting is located in Settings > car > extra settings>

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