knob/sound problem - MTCD Android Head Units General

I have a knob/sound problem with my HU (MTCE px5 Android 8 with 3 buttons and a knob) and i strongly believe that is a software issue, as it always happens at 10-20 first minutes, then everything is fine.
I start the HU everything running fine, but NO SOUND, turn knob or steering volume buttons volume bars appear but no sound. If I wait 5-10 minutes usually the sound starts suddenly. Now i ve been to a high level to trick the sound to awake, so find out jumping from app to app may awake faster. The weirdest trick I found is to turn the knob and immediately in the touch screen with my finger to the volume bar left right usually works. When the sound awakens, for some minutes the volume does not smoothly go up or down, but there are big gaps and steps!
Everything starts while the HU has the factory ROM. I 've done factory reset twice, nothing. Now i have installed Malaysk 3.5 (which is great), hoping to solve the issue, but not.
Any idea, maybe knob mapping, or knob resetting or anything else?

Anyone??

Send it back for warranty service? What else have you tried and what does reseller suggest?

Related

Navigation button problems... Any1 else having them?

I don't know if it's coincidence, but ever since I upgrade to WM5 and went back to WM2003SE, my navigation button has not worked the same.
For example, a lot of times I can go right, but can't go back left even after multiple presses, and then most of the time the middle or 'Enter' button doesn't do anything. Itz become extremely annoying because I have lost my 4th stylus by now, and I haven't received my new ones yet. Oh, and I can't play MorphGear right anymore.
Is it just hardware? Cuz I first went to ROM v.1.42 and then went to 1.40 to see if it was a problem with the new ROMs, but I still have the same problems. Any one else having these issues, and has any one fixed it??
UPDATE: WTF!! Now it went from bad to worse. Yesterday, when I left my BA at home, once I returned from work I noticed that PIE was constantly opening over and over again. Then some of the buttons wouldn't respond like the POWER to turn it off. The backlight pretty much stayed lit the whole time because it looked like the keys were stuck. I upgraded to WM5 derived from the Himalaya today and now the START menu comes up almost every 5-8 seconds, followed by a real quick succession of multiple "clicks", and my 'Start' button doesn't seem to be responding.
Can anyone help? Has my BA gone to the state of retardation? Is there a way to bring it back??
How did you go with this problem.
Mine is doing similar ever since a low battery problem.
DLC
I am experiencing the same kind of problem... and it happend after upgrade to WM5. But the problem likely to be caused by hardware.
I had problems with my phone opening up the start menu, opening IE, and closing programs immediately after opening them, Of course I had dropped the phone halfway in a cup of ice water, but immediately after tossing it in water (after hanging up, I simply dropped the phone into the cup-holder I have mounted below my stereo which happened to be occupied by a glass of ice-water I placed there without remembering) I shook the water out of the phone, and for about as much as i could stand the heat, I put a hair-dryer to the end of my phone which i pryed open after removing as many screws as i could. After a day of quirky behavior, and a night of having the battery seperated from the phone, my phone is back to its old self with the water-damage seal unnaffected after missing the line of water by just a few milimeters. I suggest going to Settings>Buttons and making every button perform no function at all followed by going to Settings>System>Button Lock and having all keys locked except your power button. Hope this helps!
Having somewhat the same issue. Only the "Down Navigation button" isn't working. Although, I'm still using Windows Mobile 2003 SE. Is there a DIY fix for this?
bump...
any suggestions?
Navigation Up/Down
Mine isn't working either - is this a hardware fault?
trying pressing down a bit harder. coz when i did that for mine, the "down" button works. normal applied pressure as for the rest of the buttons(left/right/up) does not seem to work with the "down" button, but a bit more force would make it work.
this happens to my IIs.. mebbe u can try.
Button problems
After no trauma or dunks in water several of my buttons have gone awry. My green phone button, red phone button and navigation buttons all open contacts. The green phone button activates voice command at the same time that it opens contacts. I've never switched from WM2003SE. I've checked the buttons settings and they are the same as always. Most bizarre of all is that my battery is quickly discharging. I suspect some software process is running hard but don't have any idea where to start to fix this. Soft resets have not helped.
buttons gone crazy
A hard reset fixed the problem but was a typical pain to get everything back going. Sprite backup works great until the first attempt to ActiveSync with your PC.

[Q] Volume goes up automatically, power button doesnt work

Hi,
I have a Blue Angel (XDA IIS) that has been flashed with WM6.1. I have been using it for a few years until recently that I got this weird problem.
While the phone is idle, suddenly the volume increases automatically by itself, as if some one pushes the volume slider up, and keeps pushing it. As a result, the speaker keeps beeping as the volume already hitting the max.
After awhile, it will then stop. For a short while later, it starts again. While this is happening, I cant turn off the phone using the power button on the top. But I can turn off the backlight by doing a long-press.
I have tried to reflash the firmware and also did a hard reset, but it doesnt solve the problem.
Anyone has encountered this weird problem? The buttons seem to work fine when not in that weird condition. If it is not software problem (since I reflashed it) and hardware (buttons work fine in normal situation), what else could it be?
Any idea anyone? Really appreciate some advice.
Rgds,
CH

Q: Volume acting like it's being pressed?

Hello, a few hours ago my Nexus 7 suddenly started acting as if I was continuously pressing the volume down key. I could not even power down. Thinking I got a nasty software bug, I installed an app from play that let me reboot. It immediately rebooted into recovery though, just as if I had been holding down the volume key while it booted.
I have slimkat installed with twrp v2.7.0.0. I installed a recovery from before the skimkat installation (stock with root and twrp). But it too rebooted into twrp again (as if I was tapping volume down while it rebooted). So I tried to reboot into the bootloader to see what that would do (it allows you to use the volume keys to make selections). I got to the bootloader and sure enough, it was cycling through the options like I was tapping volume down over and over.
Help? Any ideas? I have pulled off the back cover and cleaned around the volume and power keys. It does not appear anything is wrong with them. Is it a software issue? Hardware? Any help would be appreciated.
Ok just one update on this issue. I think this is likely a hardware issue. I managed to disconnect the side key cable for the volume and power keys while it was booting, and it booted up just fine.
I am not sure what is wrong with the keys, but the fact that the tablet will boot into system when they are not attached tells me I probably need to replace them. Just FYI for the unlucky person who might also behaving this problem.
I am also experiencing volume problems. Mine is software related I think. The problem I have is that all volume and sound will disappear as if I have muted all sound. I have no touch sounds, no YouTube sound, no music audio, nothing at all from the speakers or the headphone jack. A reboot will fix it, but after say 10 minutes of use the sound goes again. The volume controls do nothing. Completely stock 4.4.3.
Does anyone else have this issue?

Xtrons PB7839BP Hal9K PX5 Strange wake up behavior

My Xtrons system running Hal9K 3.2.1 with MCU version MTCE_GS_V3.01_2 is reacting very strange during wake up.
Most of the time it all goes wel. As soon as I turn my car key system wakes up within seconds and runs normally. Even after days of not using my car.
On the other hand, sometimes, system starts up, but now showing the Android and Car logo. This means system did shutdown instead of go to sleep when leaving the car.
But since a couple of weeks I am having a new issue.
As soon as turn the key, all the lights on head unit go on, but screen does not light up.
Pressing the left button on the unit does not do anything.
Only thing that works is pressing the reset button. This morning , even pressing the reset button did not wake up the unit.
After several attempts , reset and power button, finally system woke up and run normally.
Wonder what this problem could be?
Why does the unit one day wake up fine, an other it restarts ? And what could cause the problem that lately i need to use the reset button?
Hi,
I am experiencing a similar issue. As soon as it gets around 0°C the unit does a full reboot. I guess it has something to do with the power supply circuit. I am also running the Hal9k ROM but on a Witson device with a different MCU version.

What turns on a head unit ?

I have a 1 yr old LM px5 with boot issues.
I used to have on auto sleep but the damn thing would never wake up. Even pressing the on off button.
Now I have it on sleep after 1/2 or so which was a little better, and reverse cam worked if I have to re-start.
Once on it works and runs fine and has never turned itself off, so I dont suspect any lose power wires.
However I have briefly had issues with my canbus due to a faulty alarm unit. Since repaired but ever since steering controls have sometimes been erratic . That I can live with but its the not turning on thats the problem.
To me it seems like its (sometimes) not getting the 'turn on' command.
Can anyone advise please, because this unit 'should' work without canbus - yes ? If so how can I turn on without canbus, when its getting power.
It always turns off fine when I press the button but will never turn on just by the button. Even if car is running.
Answer: Whisper sweet nothings
Really ? ... ?

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