Is it possible to turn the Android head unit (px3 my mtce, malaysk 5.2 ROM) completely off so I can turn it on manually only? I have this problem that my car even when it's off, sends periodical signals to canbus and my radio turns on due to that input, it stays on for 15-20 seconds, sometimes more, sometimes less. But over a few days, if I don't turn my car on, it has a massive impact on my car battery, even to the point that sometimes I can't turn the car on (especially in this winter temperatures when it takes more power to turn it on).
I'd like to have the ability to turn device off (if I know I won't be driving for a few days) and to know it will stay off till I get to my car again.
See my post here:
https://forum.xda-developers.com/showpost.php?p=82106405&postcount=4
themissionimpossible said:
See my post here:
https://forum.xda-developers.com/showpost.php?p=82106405&postcount=4
Click to expand...
Click to collapse
That doesn't solve my problem, radio still boots periodically.
Tux2609 said:
That doesn't solve my problem, radio still boots periodically.
Click to expand...
Click to collapse
Head unit power on is exclusively controlled by voltage on the ACC wire. If your car periodically activates ACC, then the only possibility might be to put a manual switch on the ACC wire.
It might be possible the your ACC signal doesn't come directly from the car ignition switch but from another source (canbus?) which might be periodically powered on by the car control unit.
So another possibility to stop the problem could be to check the ACC wire source and possibly set up a direct wiring from the car ignition switch.
themissionimpossible said:
It might be possible the your ACC signal doesn't come directly from the car ignition switch but from another source (canbus?) which might be periodically powered on by the car control unit.
So another possibility to stop the problem could be to check the ACC wire source and possibly set up a direct wiring from the car ignition switch.
Click to expand...
Click to collapse
That's also what I was thinking about. It does go through canbus. I made a physical button switch on the acc wire. I hope that's it. If battery drain continues then it's something else, although there's nothing it could be except the radio.
Some years ago in a previous car (an old model) I derived the ACC signal directly from one of the lights in the dashboard that lightens and remains so all the time when the car was on.
The ACC wire doesn't actually provide current to the head unit, it's only a test signal the head unit checks to know when powering on and off.
Tux2609 said:
That's also what I was thinking about. It does go through canbus. I made a physical button switch on the acc wire. I hope that's it. If battery drain continues then it's something else, although there's nothing it could be except the radio.
Click to expand...
Click to collapse
Any luck with this? Did it solve the problem?
Barreto said:
Any luck with this? Did it solve the problem?
Click to expand...
Click to collapse
Still inconclusive. I left my car off for a few days but I forgot to turn the switch off So I charged the battery again and I'll monitor battery voltage level over the next few days.
The switch I made is between canbus and the HU, now I'm thinking I should of had made it before the canbus module (in case canbus is responsible for the drain).
Tux2609 said:
Still inconclusive. I left my car off for a few days but I forgot to turn the switch off So I charged the battery again and I'll monitor battery voltage level over the next few days.
The switch I made is between canbus and the HU, now I'm thinking I should of had made it before the canbus module (in case canbus is responsible for the drain).
Click to expand...
Click to collapse
I also did that. But I connected it to a fuse that I know it gets no power when the car is OFF so it (supposedly) cuts power to the canbus when the car is off.
Unfortunately, I still have power drain issues... The HU disconnects instantly when I turn the ignition OFF (before it would show a "Shutting down" screen for 2 or 3 seconds), but there seems to be something still draining power.
If it works for you, let me know. And if possible, post some pictures (I'm not really sure I cut the right wire.......)
Barreto said:
Any luck with this? Did it solve the problem?
Click to expand...
Click to collapse
Barreto said:
I also did that. But I connected it to a fuse that I know it gets no power when the car is OFF so it (supposedly) cuts power to the canbus when the car is off.
Unfortunately, I still have power drain issues... The HU disconnects instantly when I turn the ignition OFF (before it would show a "Shutting down" screen for 2 or 3 seconds), but there seems to be something still draining power.
If it works for you, let me know. And if possible, post some pictures (I'm not really sure I cut the right wire.......)
Click to expand...
Click to collapse
ACC wire triggers radio on/off, B+ wire is a constant 12V from car battery.
So, SITREP: Yesterday I had 12.7V on battery when I left the car. Today it's 11.8V. Something is still draining the battery.
I changed the auto sleep settings to 1h and I'll check tomorrow if that makes any difference.
If that doesn't help I'll try disconnecting the radio completely just to make sure (even if I'm quite positive) it's the real reason of battery drain.
Tux2609 said:
ACC wire triggers radio on/off, B+ wire is a constant 12V from car battery.
So, SITREP: Yesterday I had 12.7V on battery when I left the car. Today it's 11.8V. Something is still draining the battery.
I changed the auto sleep settings to 1h and I'll check tomorrow if that makes any difference.
If that doesn't help I'll try disconnecting the radio completely just to make sure (even if I'm quite positive) it's the real reason of battery drain.
Click to expand...
Click to collapse
No luck. Drain continues... I tried to measure drain in amps on battery but no luck. Multimeter shows 0.
Maybe you have the rear camera always on...
themissionimpossible said:
Maybe you have the rear camera always on...
Click to expand...
Click to collapse
Only if there's some fault on the HU. Even then, the camera would feel warm to the touch and it doesn't.
I'm beginning to think this thing might not be caused by radio. If that's the case, it will be damn hard to determine what the cause really is
Do you have side cutters.
marchnz said:
Do you have side cutters.
Click to expand...
Click to collapse
Yes....
So... I disconnected the radio from constant 12V and the drain is gone. Now I made a switch on the B+ wire so I can disconnect it when I leave my car off for a few days. I know it's not the fix but it will allow me not to have to charge the battery every few days. I'm still perplexed with what could be causing the drain within the radio itself though...
Related
hey guys.
i just want to know if you guys can replicate a problem i found and see if the problem i have is isolated or not.
so i've been charging my phone today and noticed that when i try and power down the phone while it is charging, the phone hangs at the shutdown circle and freezes.
when i unplug the charger (wall charger), then the phone immediately turns off.
at first i thought it was because of low battery ( i ran the phone until it died).
then i thought it was because i had no wireless connection (was in building-no signal).
when there was enough juice, i shut down the phone (not charging this time) and the phone powers down.
if this has been already covered, i apologize...
sorry for the bad grammar/punctuations. im feeling lazy. lol
40 views and no comments?
defective NS?
My phone powers down while plugged in just fine. I just checked for you.
It takes about 30 seconds of the spinning shutting down message, then the screen switches to the battery charge icon for a few seconds, then the screen goes black.
A quick press (don't hold) of the power button brings back the battery charge icon for another 10 seconds or so.
Thanks for the reply. What is weird is that I tried the test at my local best and their demo phone was exhibiting the same thing. Maybe I'm not letting it shut down long enough.
okay, i've powered down again while charging. stuck on power down screen.
been over 2 min.
looks like i'm replacing this today.
anyone else want to chime in on this?
predation said:
okay, i've powered down again while charging. stuck on power down screen.
been over 2 min.
looks like i'm replacing this today.
anyone else want to chime in on this?
Click to expand...
Click to collapse
Since you're going to have to do a factory wipe/reset for privacy/security to exchange the phone anyways, can I suggest that before you assume the phone is bad that you perform a factory reset on it and then test again?
For all we know, you've got some rogue app that is causing the problem. I'd hate to see the NS returned as bad hardware when it might possibly just be bad software you've installed...
distortedloop said:
Since you're going to have to do a factory wipe/reset for privacy/security to exchange the phone anyways, can I suggest that before you assume the phone is bad that you perform a factory reset on it and then test again?
For all we know, you've got some rogue app that is causing the problem. I'd hate to see the NS returned as bad hardware when it might possibly just be bad software you've installed...
Click to expand...
Click to collapse
exactly what i plan on doing. gonna do a factory reset first.
But i think it will still happen because the demo unit at bestbuy was a clean install with no apps on there.
But i will update as soon as i restore!
thanks distorted!
wanted to add that when i shut down the phone while it was usb connected to the comp, it shut down properly and i saw your battery icon you were mentioning.
edit:
now i tried other wall plugs, usb cords and such and it all shuts down.
very weird.
It looks like it was the micro usb charger that i was using that was the problem.
I was using one that came with my blutooth charger.
I double checked all the information of the BT plug and compared with the ones that worked. the bluetooth cable was rated a .7 amps (just like the one that came with the nexus s). other cables were rated at 1 amp (which shut down the phone fine).
oi! saved me the trip to best buy.
i tested before and after factory reset.
all good except for the BT charger.
I can confirm that this is an issue. I have a spare micro-usb cable, and when I connect that to the computer, it charges fine, but the usb-debugging or usb-drive options never appear.
While it's in this state, and I go to shut down, the Power off - Shutting Down... screen will in fact freeze until the USB cable is unplugged. It does not do this with the stock usb cable.
When this "bad" cable is used with the stock wall charger, the same thing happens.
Hmmm... I wonder what can be causing this. Anyone else have this happening?
My best guess is that maybe there's something different with the pins and they are shorting/not aligned right in some cables.
chadrockey said:
My best guess is that maybe there's something different with the pins and they are shorting/not aligned right in some cables.
Click to expand...
Click to collapse
that is what im thinking.
at least i know my NS isn't defective!
Hi there,
So just some observations...
When I use the wireless charging pad (TYLT VU) the phone will constantly BEEP BOOP and the screen turns on to say wireless charging paused it will then turn off after a few seconds.
I've read in other forms this could be due to overheating etc.... but in touching the phone it's not hot.
This is annoying... And... no current fix I can find to stop it.
Borrow another wireless charger (or go to a Starbucks or something) to see if it's the device.
If not, you might have a damaged charging pad.
I've been getting a lot of "wireless charging paused" messages as well. I have my phone on my desk, streaming audio, and it occasionally turns on and that messages comes up, and then it immediately starts charging again...hmmm...
I have 8 pads around my house, all the Nokia D900s that they gave away with the Lumia 920s. Last night I experienced this for about... 15 seconds or so. I readjusted the phone and it worked fine thereafter. Sucks that the beeping woke us up at 5am though.
I don't think it's my pad, it happens on both.
I think positioning could be part of the cause?
Oh well...
Again, just observations I'm seeing.
h20wakebum said:
I don't think it's my pad, it happens on both.
I think positioning could be part of the cause?
Oh well...
Again, just observations I'm seeing.
Click to expand...
Click to collapse
I'm having the same problem on my S6 Edge. I have a couple TYLT chargers and they work perfectly fine with my Nexus 5, Nexus 6 and Nexus 7's... both work flawlessly with those. But they both fail to work properly with the S6.
I'm pretty disappointed with this. Anyone got any ideas or know of a similar shaped charger that works with the S6? I really don't want to go back to my Nexus 6 due to the size, but having the phone beeping and flashing all night trying to charge is unacceptable.
My regular S6 was doing this last night. I wonder if it has something to do with the camera sticking out and not letting the phone lay flat?
I don't like charging it with the USB because I know the frame will get all scratched up eventually.
Running into the same problem with my T-Mobile S6. After setting it on a new 3 coil charging pad, the phone looks to be taking the charge, then once the screen times out and turns off, it will vibrate, turn back on, and display "Wireless Charging Paused".
jayr04 said:
My regular S6 was doing this last night. I wonder if it has something to do with the camera sticking out and not letting the phone lay flat?
Click to expand...
Click to collapse
On my Qi-infinity stand, it actually does lay flat as the charging pad ends just below the camera, so I don't think that's the case here.
Update: So I've managed to solve my problem by changing the wall adaptor from an old 1A Motorola plug to a 1.5A version and it's currently charging without troubles. Switch back just to confirm and within seconds, it starts giving me trouble again. I guess the S6 is picky about the power levels? *shrugs*
h20wakebum said:
Hi there,
So just some observations...
When I use the wireless charging pad (TYLT VU) the phone will constantly BEEP BOOP and the screen turns on to say wireless charging paused it will then turn off after a few seconds.
I've read in other forms this could be due to overheating etc.... but in touching the phone it's not hot.
This is annoying... And... no current fix I can find to stop it.
Click to expand...
Click to collapse
I was having the same issues. It turned out I was getting my monies worth out of the $5 walmart special I was using. I ended up getting a 3 coil charging pad and now it charges just fine. Nary a hiccup.
Link to 3 Coil Charger I'm using
everyone remember to use a 2A (possibly 1.5 amp input is also okay) charger. the output will be ~1A. This was the solution to many of the cheaper wireless chargers on ebay/amazon. Just one more thing to check!
http://bobmckay.com/i-t-support-net...charging-problems-charging-paused-repeatedly/
CHECK THIS LINK GUYS
Best Solution
In the last solution, turning on Daydream will let the phone's screen on unless you turn it off.
Another better solution is to enter developer mode and turn ON StayAwake. Same effect of daydream but without the annoying on screen.
Cheers
I have searched on forums and other places and i can not find a solution. When i have the phone plugged in, the GPS and compass are just not accurate. but when i disconnect it, it fixes itself within 10 seconds.
i tried using the gps status and toolbox app, and it should a good signal when plugged in or not. it just seems odd that 1 app works fine, and the others freak the hell out.
any help would be appreciated.
I tried turning on just GPS only. turning izat off, and nothing seems to work.
zanson said:
I have searched on forums and other places and i can not find a solution. When i have the phone plugged in, the GPS and compass are just not accurate. but when i disconnect it, it fixes itself within 10 seconds.
i tried using the gps status and toolbox app, and it should a good signal when plugged in or not. it just seems odd that 1 app works fine, and the others freak the hell out.
any help would be appreciated.
I tried turning on just GPS only. turning izat off, and nothing seems to work.
Click to expand...
Click to collapse
Your compass can act up while charging because of the electricity coming through creating an electromagnetic field. Nothing you can do there. Now for your gps, use google maps for awhile. Thats gonna be the most accuarate and compatible app. Try it for a while. If it doenst even work properly, then you may have a broken antenna or faulty OS
Shadow Assassin said:
Your compass can act up while charging because of the electricity coming through creating an electromagnetic field. Nothing you can do there. Now for your gps, use google maps for awhile. Thats gonna be the most accuarate and compatible app. Try it for a while. If it doenst even work properly, then you may have a broken antenna or faulty OS
Click to expand...
Click to collapse
yea, maps and pokemon go don't register me moving or if it does it's very jumpy (every 100-200 yards) when plugged in. once i unplug it moves almost instantly to where i am and is very smooth.
zanson said:
yea, maps and pokemon go don't register me moving or if it does it's very jumpy (every 100-200 yards) when plugged in. once i unplug it moves almost instantly to where i am and is very smooth.
Click to expand...
Click to collapse
What phone do you have and what android version are you running?
ATT LG V10 (hence the sub form)
android 6.0.0
i did a bit more testing and it seems to get worse with quick charge running (got one for my car charger) regular charge is not as bad, but when not charging its perfect.
I still find it hard to believe that the charging is giving off that much interference.
also tested gps toolbox, and it worked great standing still in any state, but once i start moving, the GPS satellites just drop like flies with any kind of charging.
Pokemon go when charging never puts me in the right place and when moving dosnt register the move for at least 100 yards, and sometimes never until i either unplug or reload the location toggle off and on.
zanson said:
ATT LG V10 (hence the sub form)
android 6.0.0
i did a bit more testing and it seems to get worse with quick charge running (got one for my car charger) regular charge is not as bad, but when not charging its perfect.
I still find it hard to believe that the charging is giving off that much interference.
also tested gps toolbox, and it worked great standing still in any state, but once i start moving, the GPS satellites just drop like flies with any kind of charging.
Pokemon go when charging never puts me in the right place and when moving dosnt register the move for at least 100 yards, and sometimes never until i either unplug or reload the location toggle off and on.
Click to expand...
Click to collapse
It may be an os issue. Have you tried a factory reset?
Shadow Assassin said:
It may be an os issue. Have you tried a factory reset?
Click to expand...
Click to collapse
will try next weekend. i will not have a chance until then. i'll report back when i try it.
I'm experiencing the same issues with my V10. I'm currently on a road trip and I cant use my GPS for Google maps while the phone is plugged in. As soon as I plug the phone in to the charger the GPS loses signal after about 30 seconds. I have to unplug the phone for about 10 seconds before the GPS starts working again. I know for a fact that my phone didn't do this when I first bought it. It is frustrating to say the least. I'm wondering if the upgrade to Android 6.0 may have broke something. I did read on another site multiple users having the exact same issue.
ReganH22 said:
I'm experiencing the same issues with my V10. I'm currently on a road trip and I cant use my GPS for Google maps while the phone is plugged in. As soon as I plug the phone in to the charger the GPS loses signal after about 30 seconds. I have to unplug the phone for about 10 seconds before the GPS starts working again. I know for a fact that my phone didn't do this when I first bought it. It is frustrating to say the least. I'm wondering if the upgrade to Android 6.0 may have broke something. I did read on another site multiple users having the exact same issue.
Click to expand...
Click to collapse
Ill see if i can work up an app to counter your accuracy issues.
Hi, last week I installed MTCE PX5 unit and OBD module, I enabled auto sleep and about 6 days car worked good, but yesterday I must use cables to start it, so I did one hour ride to charge it, but today it happened again... I have Peugeot 407, my battery have 74 Ah and I have wiring right, because installation was easy plug and play. There was not any space for do some mistake. Also when car engine is running, radio shows income voltage is 14,4, which should be normal and there shouldnt be problem with alternator.
What is best solution now? should I buy car battery charger and try to charge it? Or my battery can be damaged?
Thanks
Maverickky said:
Hi, last week I installed MTCE PX5 unit and OBD module, I enabled auto sleep and about 6 days car worked good, but yesterday I must use cables to start it, so I did one hour ride to charge it, but today it happened again... I have Peugeot 407, my battery have 74 Ah and I have wiring right, because installation was easy plug and play. There was not any space for do some mistake. Also when car engine is running, radio shows income voltage is 14,4, which should be normal and there shouldnt be problem with alternator.
What is best solution now? should I buy car battery charger and try to charge it? Or my battery can be damaged?
Thanks
Click to expand...
Click to collapse
See an auto electrician.
I have almost the same problem. I just posted a new topic without realizing someone else has the same problem. My car is Renault Megane III coupe. I noticed that even while car is off, the radio periodically starts by itself and turns of after a short while, but over a few days that's enough to drain the battery. I changed the battery, bought a new one and it's still happening.
Maverickky said:
Hi, last week I installed MTCE PX5 unit and OBD module, I enabled auto sleep and about 6 days car worked good, but yesterday I must use cables to start it, so I did one hour ride to charge it, but today it happened again...
Click to expand...
Click to collapse
Try not using auto sleep but a fixed power off interval.
The head unit will take longer to start but probably it shouldn't use battery power when car is off.
Obd port is always on. So might be that draining the car battery.
Hope this helps.
Tux2609 said:
I have almost the same problem. I just posted a new topic without realizing someone else has the same problem. My car is Renault Megane III coupe. I noticed that even while car is off, the radio periodically starts by itself and turns of after a short while, but over a few days that's enough to drain the battery. I changed the battery, bought a new one and it's still happening.
Click to expand...
Click to collapse
You mean it turns on also screen?
birdspcs said:
Obd port is always on. So might be that draining the car battery.
Hope this helps.
Click to expand...
Click to collapse
I hope this is it, because I dont want to go to service, I took OBD module off and testing it now and so far so good.
I also have this problem. It's worse now that I don't use the car so often (quarantine and such...).
The first time this happened (after a 1 week vacation away from the car) I had the OBD module installed and I blamed it on that so I removed it and swapped the battery because it wasn't receiving enough charge. But this week (after 12 days without moving the car) the battery is completely flat. Can't even unlock the car with the remote, have to do it with the key.
I tried a lot of hacks (even have the can-bus powered from a fuse that I know it disconnects when I turn the car off), but I still have battery drain problems...
I will probably disconnect the radio when I know I'm going to leave the car off for big periods of time...
Barreto said:
I also have this problem. It's worse now that I don't use the car so often (quarantine and such...).
The first time this happened (after a 1 week vacation away from the car) I had the OBD module installed and I blamed it on that so I removed it and swapped the battery because it wasn't receiving enough charge. But this week (after 12 days without moving the car) the battery is completely flat. Can't even unlock the car with the remote, have to do it with the key.
I tried a lot of hacks (even have the can-bus powered from a fuse that I know it disconnects when I turn the car off), but I still have battery drain problems...
I will probably disconnect the radio when I know I'm going to leave the car off for big periods of time...
Click to expand...
Click to collapse
Your car needs to be started al least on 3 days interval, 12 days is to much even if you do not have installer an audio system like this.
There are things that are draining your batter also like de security sistem on your car.
Hi all,
I have modified my T295 to run directly off of the 12V in my car.
Basically I got a Buck LM2596 3A Step Down converter and dialed it in to exactly 4.0V to mimic a almost fully charged Li-Ion battery and hooked it up directly to the battery terminals, skipping the tiny board that comes with the battery. In other words, straight to the mainboard.
The tablet works perfectly as a car stereo connected to the Bluetooth Amp and doesn't have any problem, but once every 3 days or so it suddenly shuts off. Sometimes I enter in my car and it's already off and sometimes I'm driving, it suddenly gets a completely black screen and then shuts off. I can turn it on immediately after, but sometimes I need 2-3 tries.
Maybe it's kernel related and triggers some sort of brownout? But this doesn't make sense to me, since I can stress it and it doesn't turn off.
It's Android 9, rooted, debloated and decrypted in case this helps
Thanks for any advice!
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