Database Users

Noise Issues - Pumpkin HU

Hello,
I got a very annoying problem with my pumpkin head unit. Theres a noise, like when you place a smartphone close to speaker, which I hear all the time coming out of my car speakers.
Sometimes it's quiet and sometimes I hear that noise.
Is there any way to fix that?
My HeadUnit is (Description from Pumpkin Website):
Pumpkin 7 Inch Quad Core Android 4.4 Car Stereo DVD Player for Opel Vauxhall 2 Din support DAB+ AV Output MirrorLink 3G WiFi OBD2 DVR Steering Wheel Control
I run Malaysk Rom, but had this issues even with the standard ROM.
Would be happy if anybody could help me.
Regards
Ben

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No ideas?

Any ideas
I would be happy if someone could help me with my Problem

It's likely noise from the screen. Try turning the screen off and see if it goes away. It won't be easy to fix. Make sure all your grounds are as good as possible and make sure they are as direct to the battery as you can get. Noise like this is from a bad circuit design. It's the difference between an expensive well-engineered board and some POS from China. Yeah, I got one too, the Lollipop unit (self-rooted w/Viper).
If you only get the noise when the car is running it could be noise from your alternator or plug wires. That's harder to fix. You could use one of the crazy capacitors they make for car audio, but if you aren't running a 1000W, they can be overkill. I would try 1000uF cap across the 12V battery supply to ground, as close to the head unit as you can get it. Make sure the cap is rated at least 15V or so (it will see more than 12 from a car!). It will be electrolytic, so make sure you obey polarity. I'll be doing this myself later today.

May be worth a try running a wire from the negative of the battery post to the radio ground...I would just do it quick and easy in the driveway before trying to route it through the car.

Thank you for your support on that...
Unfortunately that sounds not that easy. I thought this might be a common problem with those head units :-/

I have a sound coming thru the speakers as well kinda sounds like a hard drive reading data when its booting up but goes away once its booted & running.
Might try running a better ground see if that helps.

Dasaita 10.2" Android 6.0 head unit - Audio Issue

Hello, I recently installed the above Android unit into my 2014 Mitsubishi EVO with Rockford system. It came with the can bus decoder MT-SS-03 for 2014 Outlander. I set everything up in the factory settings menu but I'm having a major audio problem that sadly is ruining an otherwise awesome experience.
If I listen to any music at high volume all system audio cuts out completely for 5-10 seconds at a time. I've found this problem is directly related to the volume. The louder it is, the quicker the audio will cut out. I've double and triple checked all wiring and pins, updated to the latest MCU 2.59, Android system (8-3-2017), etc.
I'm out of ideas on what to try next but hoping someone here can shine some light on the situation. Thanks in advance and looking forward to putting an end to this issue!

do you have proper canbus?

Yes I do, according to them. I did get a red one though which was labeled for 2014 Outlander which I understand to be the newer can box for 2014-2015 EVO but the pictures I've seen show a black box and mine was red but labeled as the newer one. I thought the older 2008-2013 units were red. Not sure if that makes a difference or not but I do have sound from all speakers so it works it just cuts out at high volume. However, the amplifier settings on the Android unit do respond a bit strange. The sub slider seems to change all speaker output and not the sub directly and has a pretty minimal effect. The fader seems right at least as far as the channels go.
In the meantime I did contact the seller on Amazon about the issue. They told me the issue is caused by the high power protection of the factory amplifier. To fix the issue they want me to re-install the factory radio, turn the volume sliders down to the "middle part" and then install the Android unit again. This seems a bit strange to me but it could be the factory radio interfaces with the amp in a different way and is able to control the gain of the sub and the Android unit cannot. With the newer Android unit I noticed the max volume is much louder so maybe I'm hitting some sort of over current protection causing the amp to momentarily shut down. Has anyone ever heard of this?
What I'm not sure about is when this procedure would be needed. Is it because I had the amp slider on factory unit is set too high before I removed it or is it because I disconnected the battery and the amp defaults to a higher setting that only the factory unit can adjust? It would be a real shame if every time power is cut from the amp I need to repeat the process. I fear that may be the case because I'm not sure the amp has an internal EPROM or non-volatile memory that's saving the settings and I did in fact disconnect the battery.
Either way I'll be happy to finally get to the bottom of the issue and I'm sure I'll find out whether or not I'll need to swap the radios again. Until then I'll keep the factory unit closeby. Luckily it's very easy to swap out so fingers crossed this fixes the problem. It's going to be a few days till I pull the radio out since I'm also waiting for a replacement USB harness since one of mine is inop due to a damaged wire.
Please let me know if anyone has any input about this. Thanks again.

Ditto - did you try swapping back and lowering the volume, if so, did it resolve the issue?
I have only had mine for 3 days, Dasiata HA2106-S720 with Dasaita CB003 Canbus harness in a 2013 Mitsubishi ASX with Rockford Fosgate. I would agree that the volume seems higher, so there could be some truth in the Sellers theory.
By the way my experience with Subwoofer control also matches yours - adjusting the lowest frequencies on the Graphic Equalizer seems to affect the main speakers more than the subwoofer, and I am not getting the same 'punchy' bass as the OEM Head Unit.

TSimone said:
Hello, I recently installed the above Android unit into my 2014 Mitsubishi EVO with Rockford system. It came with the can bus decoder MT-SS-03 for 2014 Outlander. I set everything up in the factory settings menu but I'm having a major audio problem that sadly is ruining an otherwise awesome experience.
If I listen to any music at high volume all system audio cuts out completely for 5-10 seconds at a time. I've found this problem is directly related to the volume. The louder it is, the quicker the audio will cut out. I've double and triple checked all wiring and pins, updated to the latest MCU 2.59, Android system (8-3-2017), etc.
I'm out of ideas on what to try next but hoping someone here can shine some light on the situation. Thanks in advance and looking forward to putting an end to this issue!
Click to expand...
Click to collapse
You made also the Car Settings to work well ? Things like keyless operations, windshiel wipers operation, lights time out, auto fold mirror, etc ? Thanks.

Android head unit sub woofer level control? WHAT!?

Hi,
So I just want a simple answer to what the logic behind the "subwoofer level" setting is on the head unit. I am now onto buying my 3rd head unit as the first one was a JOYING 10.1inch which was actually perfect but I had to sell it on due to buying another car and not wanting such a big screen.. Needed something that would fit the interior properly so I had to sell the head unit (Wish I didnt as this headunit didnt have a single flaw).
Now the issue starts! I then bought a JOYING 8inch VW headunit with android marshmallow on it and I then installed a subwoofer to it. What I dont understand is this new "Feature" where the sub woofer volume/frequency is controlled seperately from the rest of the speakers which are controlled with the volume knob. Which idiot thought of this!? The problem starts when you turn the volume knob down but oh wait, the sub woofer is still booming really loudly. You then have to go into the subwoofer level setting and adjust that to the volume you want.. and then when you want to put the volume louder, you have to readjust the sub woofer level again!!! Why would you bloody want this when you have sub woofer controllers you can install easily which do the same job!? I then thought okay maybe it is a flaw with the head unit so I sold my brother the headunit and of I went to look for another one.. I thought not going to get another joying again so this time just yestarday I saw the EONON GA8153A octa core android 7.1.1 and I thought WOW I have to buy this.. So I emailed the company to ask about this stupid subwoofer level feature and fingers crossed they didnt have this same feature built in to their head units but so do they!? It would be fine if it actually worked properly but everytime you turn your volume down, you have to adjust the subwoofer level as well and turn it down or if you dont, you have a car which is playing no highs or mids but a crazy amount of bass. It is stupid! Long story short.. I did ask them if they could create a custom android 7.1.1 firmware which will control the sub woofer volume together with the the rest of speakers but its not possible for them yet all these single din head units you see, SONY, PIONEER etc etc have this implemented properly.. Someone please enlighten me on this situation? Any software guru's out there who know how to modify the firmware and make this change possible? Rant over.
Thank You.

This issue must have been introduced on Joying's head units with 7.x ??
My single-din 6.0.1 version JY-UMS03N2 with 7" screen controls all 5 outputs correctly. As far as I know, they also do the same head unit with 8" & 10" screens ?
Might be worth a post on the Joying forum. They do seem to respond occasionally.

pwood999 said:
This issue must have been introduced on Joying's head units with 7.x ??
My single-din 6.0.1 version JY-UMS03N2 with 7" screen controls all 5 outputs correctly. As far as I know, they also do the same head unit with 8" & 10" screens ?
Might be worth a post on the Joying forum. They do seem to respond occasionally.
Click to expand...
Click to collapse
They are not calling it an issue.. I contacted joying themselves who said it was a feature and the head unit I purchased yestarday from EONON have also said that this is what the customers asked for yet it doesnt make sense why the customers would ask for this.. I understand the fact that yes you can adjust subwoofer for whenever you dont want it playing then okay understood HOWEVER it also has its negatives where when you do have subwoofer on, you cant control the volume at the same time as when controlling the speaker volume too which makes no sense.
The issue/feature is not with all type of head units because I had a 10.1inch which you have just the bigger screen and that was fine and all outputs adjusted at the same time but the one I am looking for which is this http://www.eonon.co.uk/upload/product/Gallery/GA8153A/GA8153A-01.jpg seems to only adjust the outputs seperately which makes no sense. I will write it on the JOYING forum and see if they come up with a solution but I have already emailed them and they said no solution.
Thanks.

It seems these manufacturers have separated the subwoofer gain from the volume control. Nice to know before I buy. Definitely NOT a feature.

Help me choose a new Android Head Unit - What I have now vs What I am looking for

Hi All - I've had a Joying Sofia 3GR head unit since March 2017. I need to replace it. I currently have a 2008 Nissan 350Z without Bose or navigation, if this helps in the discussion. I like, but certainly do not love my Sofia unit, overall the experience has gotten far, far too frustrating not to replace this head unit. So here's what I do not like about the unit, and what I'd like to fix with new hardware.
1 - Right off the bat, the unit doesn't fit into any double-din dash kits I have found for this car. I've tried Metra and Scosche kits for the 350z, and the unit is a few mm too wide and too tall for it. Given the way the Z's center stack is designed, going with a unit where the display sticks out and is wider and taller than double-din likely won't work as I only have about 10mm of wiggle room before it touches the HVAC controls or prevents me from opening the center console compartment.
2 - I'm looking for a new unit with capacitive or no buttons. My Joying unit's NAVI button mechanism has failed, so it's stuck in. In addition, the volume encoder randomly adjusts the volume without me touching it. I'll be driving and all of a sudden the volume rises quickly and drastically, I can't have that obviously, it's too large of a distraction. Ideally, I'd like to get my factory steering wheel volume controls back. This has proven difficult as the standard aftermarket steering wheel control modules in the industry are frustrating and there's little documentation about it at all, and I don't believe my car has a CANbus or anything similar. I don't want to stick a BT remote on the wheel, that's silly.
3 - GPS randomly dies completely and bringing it back is luck of the draw. If I go into the Car Settings app or any GPS utility app, it cannot reach satellites. Ever. I've tried a reboot, I've tried manual A-GPS refreshes, I've tried making sure the date/time is correct, I've tried factory resetting it. Nothing, absolutely nothing fixes it with consistency, factory resets have gotten it back sometimes, but not always, and not currently. I guess this could be hardware, I just don't know. Navigation is a big part of why I decided to get one of these units in the first place.
4 - Poor performance. I'm trying to have to interact with the unit as little as possible. I'd like to be able to quickly set the music I want to hear, or the navigation destination of my choice, and have it work as reasonably well as say, my phone does. Currently, the Sofia unit hiccups, gets stuck, crashes, sound glitches, etc often. Usually at least once a day.
5 - Poor sound quality. It just doesn't sound as good as my factory CD player did. Not even close. I was able to get it sounding great with Viper4Android, but that takes up too much CPU headroom, so everything else will glitch, heat up, etc so it's not viable. Also since the 6.0 update, I can't use the EQ function in Viper, which is a large reason of why I was able to get it sounding good previously.
Does anyone have an Android unit that they love, and that actually works with consistency?

I wrote up a review here [Review] ATOTO A6 Install in Subaru WRX, but the bottom line is that i'm happy with ATOTO A6 Pro. I wont repeat the details here, but it addresses most of your needs and I was able to get the steering wheel controls working in my older car.

Review of PX6 Android 9 head unit -too high expectations? Return or exchange?

I ordered a PX6 4 /64 GB (MTCE_CHS) head unit with 720 p display and Android 9 for my Mercedes-Benz W211. I found a seller at AliExpress with great reviews so I felt safe to order from them.
This will be a short review which I hope can help someone who is looking for info before buying a Android Head unit, but I am also very thankful if someone has ideas how I can solve my problems.
Pros:
- Very sharp display with good viewing angles.
- Reverse cam works great in good lightning conditions.
- Fast startup from standby.
- Useful equalizer which makes it possible to get a great sound experience.
- Custom ROM, root, Tasker and FCC Launcher make it possible to customize the head unit in many ways.
- Very good GPS performance when connected to original powered GPS-antenna in car.
- Apple CarPlay works and looks generally very good, but has problems with sound mixing which makes it useless.
Cons:
- Handsfree sound quality sucks so much it's useless. Sound from the other persons is bad and they can't barely hear me. Tried with external microphone also.
- No auto brightness and max brightness is low in sunny conditions.
- General audio quality, there is constant background noise and interference from wifi, bluetooth and USB devices makes it worse.
- The head unit was supposed to be plug and play but I had to modify my car and use an dremel multi tool to cut the plastic in the car, which makes it difficult to go back to original head unit. This is normal according to seller but no info before buying.
- Android apps does not display well in a car head unit. Even when adjusting dpi it is difficult to find a good setting. Text and objects will be too small or too big, sometimes frustrating and dangerous to control music and navigation apps when driving.
- Android Auto is displayed in low resolution and looks bad, it also has problems with sound mixing which makes it useless.
- FM radio reception is bad, even though I use the original powered antenna in the car.
- General sound mixing problems in different apps.
- I had dust debris inside the display, which is visible with both display off and on.
Problems:
- I have an intermittent problem with a "popping" sound and at the same time the display goes to night mode for a second and reset the clock to 0:00. Tried to disable auto night mode in factory settings but no difference.
- Sometimes when opening a door or turning on the ignition there is a loud high pitch sound from the speakers, very uncomfortable, almost hurts the ears and scares the passengers.
- Sound mixing, when using Android Auto och Apple CarPlay, it will automatically lower music volume when giving navigation directions, but will not increase volume afterwards. So when you manually increase music volume again, next time the voice will be so high it almost destroy your speakers and ears. The navigation voice in Waze Android app gets cut 0,5 - 1,0 seconds to early.
When speaking to the seller they have problems understanding my issues, and just tell me to wait for MCU update (I already have the latest). Seems like they just want to delay so the time when it is possible to open a dispute will end.
What would you recommend me to do? Demand an exchange of my head unit and canbus decoder and hope it will solve the problems? Demand a refund and buy a Sony or Kenwood Android Auto / Apple CarPlay head unit?
Just accept the problems and issues and try to forget that I paid A LOT of money for the head unit and all the accessories?

There are dozens of different manufacturers and hardware types using PX6.
Post MCU type so people can know the manufacturer and type of unit being reviewed.

marchnz said:
There are dozens of different manufacturers and hardware types using PX6.
Post MCU type so people can know the manufacturer and type of unit being reviewed.
Click to expand...
Click to collapse
Sorry, it is a MTCE_CHS, I added the info to the first post.

I think that this highlights a general problem with the chinese android head units: They just aren't "consumer-ready". Don't get me wrong, they provide fantastic bang for your buck, but they all have their problems (many of which can be solved through help from this forum) and they all lack any decent support. Having said that, I also have a PX6 4G/64G unit in my car, and I just don't have any of the problems you mention. It's not without its annoyances, and I have had to work through several problems to get it sorted, but after just a few months I am very happy with what I have ended up with. The sound quality is fantastic to my untrained ears, and it all works fairly smoothly. I got a massive upgrade in functionality in my 21 year old car for not much money.
In your case, there seem to be too many problems that appear to be related to the hardware. I don't think that an MCU update is going to fix the issues that you list, and so If it were me, I would be returned the unit asap, and trying a different manufacturer, either another chinese manufacturer or one of the proven japanese manufacturers.