Hello all,
So I purchased a buttonless PX5:
https://www.aliexpress.com/item/And...32849648099.html?spm=a2g0s.9042311.0.0.qvQ36y
However, none of the Android widgets or volume buttons work to control the volume.
Only the little button off to the top right corner does anything.
I feel like I'm going to crash my car, constantly hunting for that thing.
Is there anyway to patch/hack this thing to respond to something like a virtual volume slider like this?
https://play.google.com/store/apps/details?id=com.clownface.volumeslider
Thanks!
Why do you need onscreen volume? Didnt you have a CAN and steering wheel controls? The volume control on HU is not the same as on smartphones. It has controlled by MCU board where android board sends special commands from the headunit service.
My car came with a sport package, which meant smaller diameter steering wheel and therefore no wheel controls
That being said, the sound slider via settings menu is indeed able to control the volume via onscreen controls. It just doesn't seem to respond to the normal android media controls, is there a way to link the two together?
Then the simplest way is to use infrared remote control (if your HU has it) or to buy universal resistive SWC and connect it to Key-wires.
xtracrispy said:
That being said, the sound slider via settings menu is indeed able to control the volume via onscreen controls. It just doesn't seem to respond to the normal android media controls, is there a way to link the two together?
Click to expand...
Click to collapse
The only way is to create your own service or automation that will send volume control broadcast intents to mcu.
For my MTCB it may be even a shell commands:
Code:
am broadcast -a com.microntek.irkeyDown --ei keyCode XX
where XX - 19 (volume up) or 27 (volume down).
You need to find this commands for your MTCE here and you will be able to use Tasker for your own service creation.
The second way is to write service on java. But you need a skill for that.
Found xposed-mtce-utils do the job. It has "a strip of volume control at the bottom of the screen".
https://forum.xda-developers.com/showpost.php?p=72103289&postcount=2
aluver said:
Found xposed-mtce-utils do the job. It has "a strip of volume control at the bottom of the screen".
https://forum.xda-developers.com/showpost.php?p=72103289&postcount=2
Click to expand...
Click to collapse
Thanks for the link! I'll definitely give this a shot.
Do you have any experience entering recovery mode on a deck that has absolutely no buttons?
xtracrispy said:
Thanks for the link! I'll definitely give this a shot.
Do you have any experience entering recovery mode on a deck that has absolutely no buttons?
Click to expand...
Click to collapse
Don't have a MTC unit but try this,
Install Terminal Emulator app, enter "reboot recovery"
pretty big fails on the trying front.
I've managed to buy a MTCE deck that has neither buttons or SD card slot with which to install malaysk rom the prescribed way.
Has anyone had luck with a pure download -> flash approach? If so, any instructions online?
xtracrispy said:
Has anyone had luck with a pure download -> flash approach? If so, any instructions online?
Click to expand...
Click to collapse
I believe it must update from usb-flash drive.
Volume up/down codes for your MTCE: 273 and 281.
You can now use Tasker to draw your own Up/Down arrows and set the shell commands for them (w/root).
Or you can use any usb keyboard or other usb-hid device and set the volume commands for buttons you wish.
Other key codes here https://forum.xda-developers.com/an...tcd-5-1-1-xposed-compatibility-t3380468/page2
Volume control workaround on buttonless HU
Hi this should help you which I posted on Car Launcher thread.
Seems we have the same HU except mine was sold by XTRONS.
Like many of you on this forum, I love the simple efficient GUI of Car Launcher AG, amazing work from the developer ! yet I have come to the frustration of volume control on bare HU like mine : PE88CMPL from XTRONS which has absolutely zero buttons at all.
So I went on eBay and bought "Car steering wheel remote control buttons wireless android gps navigation", connected it to Key 1/Key 2, Ground and acc 12V.
Programmed the buttons to volume up down mute and other useful functions such as back/home/gps/answer call/hang up and shutdown.
These setups are in the Car Steering Wheel area in settings.
Those buttons are super small and come with a 3M double face on the back and can be properly installed on the console at arm/finger reach.
I saws that JOYING sells a larger one that fits in cups holder "JOYING SWC Steering Wheel Controller for Android Universal Car GPS Stereo Radio" if you prefer that design.
Enjoy
Hello, i now that issue isn't from this thread but i need some help for use an usb knob that dont make nothing on a MCU of Spreadtrum SC9853I.
This multimedia knob change only the sound level of notifications. It's possible to make it work on MCU.
Thanks
PaulBorges said:
Hello, i now that issue isn't from this thread but i need some help for use an usb knob that dont make nothing on a MCU of Spreadtrum SC9853I.
This multimedia knob change only the sound level of notifications. It's possible to make it work on MCU.
Thanks
Click to expand...
Click to collapse
you're in the wrong forum, suggest searching for "SC9853I" and ask the question of the knowledgeable joying people.
Hi. Sorry for my google english.
I have -Px6 DSP 9 " MTEC_CHS buttonless with Android Pie- and I couldn't find (if any) a "Knobby volume control style" apk for volume control. I can't put a link from Google Play.
The idea is to touch the screen with 3 fingers (anywhere on the screen) and rotate your wrist to bring up the volume control and increase or decrease the volume. Like a home amp. Do you know of any MTCE that has it since I suppose it should be integrated into the MCU or some apk ?.
Thank you all
Hello,
I guess my headphone jack button event is handle by msm8974 because the input event name is msm8974-taiko-mtp-snd-card_Button_Jack.
It does work fine if I use a headset which does match the following technical specifications: source.android.com/devices/accessories/headset/plug-headset-spec
But I want to use a headphone jack button. Unfortunanaly all smart headphone jack buttons without microphone doesn't work with my msm8974 module. I did messure them an find out that the mic resistence is missing. According to source.android.com/devices/accessories/headset/plug-headset-spec the mic resistence is required. I guess the implementation of my msm8974 module can't handle this.
I did monitor the events and the only thing I got during button press with GND and Mic 10 Ohm is a headphone pluged in event.
I have the following ideas to solve the problem:
put a 0603 SMD resistor between GND and MIC on the male jack. It's very tight there and my be possible if I could grind the jack a little bit. But soldering on the male jack surface would be very painful. Well, I could use an resistor on top of the plug, like this: youtube.com/watch?v=mn_xYEkDMDQ but I don't want to add so much fragile offset to my phone. I prefer the integrated solution: google.com/search?q=quick+button+jack&tbm=isch
put a resistor inside the phone on the flex cable of the female connector. I have enough room inside my phone for another resistor but it's really difficult to solder on the flex cable because the lines are very small and tight together. I would not able to do this without a microscope.
change the implementation of msm8974 headphone jack handling to make it able to find the button events even without mic. There are many phone out there which are compatible with this incorrect headphone jack button. Does anybody know how to find the according kernel module and how to alter it?
change the headphone event check intervall of msm8974. If the headphone detection would be a lot faster I could listen for headphone plugin events instead of key events. But currently it does take 1-3s until the event fires. Which means I need to hold the button 3 seconds to close the circuit long enough until the headphone detection event got detected.
do you know other ways to add another hardware button to the phone without try to fit an arduino into the phone?
My msm8974 device is a Sony Z3 Compact.
I hope some of you have ideas to solve this problem.
Hi, i'm looking for universal head unit, with preferably latest HW, or px5 at least, that is 7" so I can stick matte screen "protector" on it.
What I can find is unit that still has hw button for next/skip song and volume knob (NOT volume +/- buttons). Or support BT remote that I can put on my steering wheel. I have old car with no resistivity based neither can steering wheel controls.
S far only unit I found that at least remotelly looks usable is some sony with android auto, but I kinda wanted to go with chinese android unit as I can have apps directly on it etc. Thought no next song HW button or buttons instad of knob for volume are really deal breaker.
I know modern cars are full of touchscreen so chinese manufacturers are probably going that way, well I have old car so I obviously don't like that
Anyway do you know of any chinese HU with form factor I would like or with working support for bluetooth steering wheel remote at least?
I have a 2004 Ford that uses one wire resistor signal for steering wheel control. I wasn't able to get the AXXESS SWC-1 to work right so I tried removing it and just connecting the one wire from the steering wheel to the Key-1 wire. That made it work but for some reason i have to program the buttons more than once. I have three different programs for each of the 4 buttons. It's like there is some king of ground shift going on causing the radio to see a different resistance at different times. I have the SWC ground off the back of the radio connected to the same ground as the radio, should that be connected to the ground that feeds the steering wheel buttons?
It's not so much of a problem as it is an annoyance to keep having to assign the buttons again and again till i have all the possible scenarios covered.
I’ve got a PX6 12.1 screen for my ranger but the steering wheel buttons have been playing up with the volume down putting volume up and volume up skipping track it would sometimes be fine other times play now it’s permanently swapped to the buttons are doing the wrong thing. It’s had a new canbus module and no difference. Does it sound like a hardware fault? Are there any other setting that I can check. I’ve tried reprogramming the buttons in the steering settings but my unit doesn’t support that.