It was not happening before, but recently, every time i turn on the key, head unit does full reebot sequence instead of turning on immediately whicht was the case before. It did full reboot, only if i did not turn the car for couple of days. Olso, sometimes when i turn key just one step - it turns on - and when i turn ignition on - it again goes to reboot cycle But recently, all the time it just does full reboot even I was not in car for couple of minutes
Is there ans solution/setting for this, what should i do? Its anoying waiting full cycle all the time
There are only 2 possible reasons:
- Bad battery: It is winter and when starting your car your battery voltage drops too much thereby "under powering" your unit which causes a reboot.
- You installed an app that keeps a wake lock or you installed a badly written, badly behaving app. The screen switches off almost immediately. The android part of the unit is switched off after 4 minutes to do it "clean". If the unit detects after 20 minutes that it can't stop Android because some app "keeps it alive", the power is simply cut off to prevent that your car battery is drained in 2-3 days.
So check them both.
Tnx Surfer.
I have extremly low number of apps, so i ll check it and uninstall one i might no need.
First reason you mentioned occured in my mind, but i could not be sure low temperature is a reason.
Whatever causes it, its really anoying.
Tnx one more for ur eply.
I contacted Chinese people , thay gave me some latest update to install but it did not help, problem still occurs, neither full factory reset which came with that update.
Anybody else have an idea what could cause this? Its really anoying to go out of the car for 2 minute and than wait 20 seconds again for Head unit to go on
Related
Hi All,
I'm experiencing a major issue with my HD. it will self shut down or switch off after entering standby mode, ranging from few minutes to few hours (3 hours to be precise, the last time). Is there anyone having the same issue? if yes, is there anyway to solve this?
please help.
regards,
sanchez
Check if the battery is properly fixed. I mean, that it doesn't move. If it doesn't a perfect contact, as soon as you move or touch the device a bit harder than usual, it can turn itself off.
quote: Check if the battery is properly fixed. I mean, that it doesn't move. If it doesn't a perfect contact, as soon as you move or touch the device a bit harder than usual, it can turn itself off.
i did and still it shuts down.. it shuts down randomly in standby mode, ranging from few minutes to hours (maximum 8 hrs so far). the seller refused to replace mine because
1) the phone didnt shut off in standby mode when they were checking it
2) they refused to test it for a longer time
I have the same problm. Every now and then it will shut down and reboot. Annoying when the phone wakes me up in the middle of the night (htc boot-sound)
quote: Every now and then it will shut down and reboot.
yours actually reboots itself? mine only shut down / switch off by itself. my only self found solution is by deactivating standby mode, so the phone will go the stage of switching backlight off but screen is still visible... its draining the battery =(
It's not that strange that the phone reboots, that is what happens if a program crashes.
If your seller won't test it for a longer time, try going to an HTC point.
helijon said:
I have the same problm. Every now and then it will shut down and reboot. Annoying when the phone wakes me up in the middle of the night (htc boot-sound)
Click to expand...
Click to collapse
Actually that was what happened with my Diamond. Even hard-resetting the phone did not help.
I sent it back for repairs twice, but the problem persisted.
You device might be faulty, if a hard-reset does not solve the problem.
Hello all,
I bought my iconia tab last Tues. I am a big fan of android. But I have used an I pad since they were released. Now I'm not going to make comparisons, but I'm thinking I may have received a bad unit. Or maybeothers can verify my findings.
Battery life is horrible.
I barely get 4 hours of use before I need to go running for the charger.
Random shutdowns and reboot.
Unit will shutdown at random, even when I'm using it. And it reboot any time it loses a wifi source. Ex. I have a mobile hotspot. If I shut the hotspot off, the iconia will reboot when it loses the signal.
Screen on/off all day.
When I put the unit in standby, the screen turns on and off about evey 2 minutes.
Laggy keyboard.
Even as I type this, the keyboard is extremly laggy.
I am running this unit stock now, nothing extra has been installed.
I even did a factory reset and hard reset.
Ii have not received any updates, although I check all the time. I'm still on the 1.104. Build.
Any suggestions? Thanks.
from your description, yeah, you should probably return this unit...
just return my device is not that bad, battery last 1 day with normal use, never random shut down
the only thing i got troubled with is screen on/off , that is solved by pressing powerr button several times, very annoying actuallly
I've gotten 2 days of moderate use, I usually charge every night but unless I'm playing games for hours at a time I'm usually @ 40% before I plug in.
If the tab is rebooting on a frequent basis, particularly if you can do it on demand, definitely return it.
The screen random on should be fixed by the .141 update
I don't want to start anything but when i read "Should I return it?" and your posting it in this forum, then most likely the person posting it (if you found this forum) knows a little about it. But to read, it shuts off, battery life is terrible, etc..
I dont use it all day but i will use it with lowest brightness, 1 min timeout, and i dont use twitter or play movies, but get like 5-8 days on a charge.. NOW, one key thing, i turn the power OFF when done using it and does hold the battery much better (I never tried airplane mode)..
Never mind, got off on a rant from the thread...unrelated, there are some very cool news apps that are out now for HC.
Ok. Returned it for a fresh unit. Letting it get a full charge before I do anything with it.
Fyi. Previous unit only gave me 4 hours. Regardless if I was using it or it was sitting in standby.
Does anyone know of a way to get the 141 update without rooting?
Sent from my DROIDX using XDA App
BadGrim said:
Ok. Returned it for a fresh unit. Letting it get a full charge before I do anything with it.
Fyi. Previous unit only gave me 4 hours. Regardless if I was using it or it was sitting in standby.
Does anyone know of a way to get the 141 update without rooting?
Sent from my DROIDX using XDA App
Click to expand...
Click to collapse
For the first time since I bought it I haven't used my device for a day. In around 22 hours of standby it lost 3% battery.
So draining in 4 hours in standby sounds completly defective to me.
when I got mine
battery was at 50%
I used it during the day, and when the battery was arround 5% I did a full charge
- regular usage : 1day ++
- working usage : 8 hours (web apps dev...)
4 hours, use it or not it's awfull...
Wish you got better now
interqd said:
just return my device is not that bad, battery last 1 day with normal use, never random shut down
the only thing i got troubled with is screen on/off , that is solved by pressing powerr button several times, very annoying actuallly
Click to expand...
Click to collapse
What kind of screen problem? Is it turning on randomly while in stand by or the other way around, turning off while in use?
And for my future reference, how do you do returns in Indonesia? Do you take it to the store or to the service center (or either)? Thanks in advance!
iqbalbaskara said:
What kind of screen problem? Is it turning on randomly while in stand by or the other way around, turning off while in use?
And for my future reference, how do you do returns in Indonesia? Do you take it to the store or to the service center (or either)? Thanks in advance!
Click to expand...
Click to collapse
Yes, the screen would randomy turn on/off while in standby.
The other. The tablet would actually power off while i was using it, not just th screen, the entire thing.
iqbalbaskara said:
What kind of screen problem? Is it turning on randomly while in stand by or the other way around, turning off while in use?
And for my future reference, how do you do returns in Indonesia? Do you take it to the store or to the service center (or either)? Thanks in advance!
Click to expand...
Click to collapse
its turning on randomly while standby, usually i have to pres power button 3 or 4 times before it went off without turning on again...
i think its not possible to return to the store here, just take to the service centre... but i dont know if they will give new device.. as i know here only apple , blackberry and samsung that will give new device if found defective ..
My problem is a little different from what I've mostly read. I use my N10 about an hour a day, then let it sit for 23 hours. About half the time when I turn the screen on, I find that it shut itself down at some point. Sometimes there's no notification light, and sometimes the notification light is actually blinking (weird).
I turn it back on, it boots up, life is good. It doesn't freeze while in use. It also doesn't keep time well. Between the time and the shutdowns I can't use it for an alarm, which would be nice.
Anyway, should I try to return it, reset it to factory defaults (I believe I did this a couple months ago), or is this normal?
mobbom said:
My problem is a little different from what I've mostly read. I use my N10 about an hour a day, then let it sit for 23 hours. About half the time when I turn the screen on, I find that it shut itself down at some point. Sometimes there's no notification light, and sometimes the notification light is actually blinking (weird).
I turn it back on, it boots up, life is good. It doesn't freeze while in use. It also doesn't keep time well. Between the time and the shutdowns I can't use it for an alarm, which would be nice.
Anyway, should I try to return it, reset it to factory defaults (I believe I did this a couple months ago), or is this normal?
Click to expand...
Click to collapse
Sounds like the problem I worked on for two months, commonly called sleep-of-death. I ended up RMAing mine, and the new unit did not have this problem. I suggest you RMA, even though its a bit of a hassle.
do you have to hold the power button longer than usual? typically with sod the unit is on (hence the notification light) but will not wake the screen. have you tried a factory reset? checking for any rogue apps? downloading a new image from Google and flashing it may do the trick as well.
I had an AutoPumpkin RK3188 in my last car that I recently sold. I loved the HU, but I could not stand the 30-second startup time. An aftermarket radio should be like the stock one, instant-on.
The last time I *****ed on here about it, I was told "well, that's a normal amount of time for an Android device to boot." I call BS that the head unit should have to 'boot' at all, except when power is first applied. I can put my phone, with a tiny battery, on standby and get 7+ days of standby time, and still get instant-on as soon as I press the power button. With a car battery to draw on, the Android units should be able to go into low power for months without draining the battery. It's just a matter of turning off all the accessories like amplifiers and radios when the unit stands-by (say, by internally powering them from the ignition line instead of the always-hot line, or via a relay triggered by the ign).
So, has any manufacturer gotten to the point where the Android standby mode is properly implemented, and turning on the key brings the unit out of standby immediately? I've been looking through some threads and it looks like it's more of the same, even here more than a year later.
i dont think anyone has that. Someone on here made a ROM for the S160 from RoadNavi that I think shaves the time down to close to 20 seconds, but that is about the best. The new Ownice claimed to have like a 48 hour standby, but I dont know that anyone actually tried it.
I have a Joying MTCD, and I just use my Remote Start as I'm walking up, so it is up and running when I get in
Look at the flyaudio carstereos. There are YouTube video's about it. These carstereos Run @ a snapdragon processor and can Go in to a Sleep mode for days / weeks.
Mine having an MCU: 2016-04-25 10:38:12 KEQ_60_C6R_7706_5006_CAN(DaZhongWC)_Newlap
Starts almost instantaneously. The most wait time I had to make is about 10 seconds prior to boot. And that only occurs when I've left the car for days. If I'll use the car overnight there's no wait time even.
Tumke32 said:
Look at the flyaudio carstereos. There are YouTube video's about it. These carstereos Run @ a snapdragon processor and can Go in to a Sleep mode for days / weeks.
Click to expand...
Click to collapse
Those don't look like Android headunits, though. That's important to me.
Thanks all, it looks like they're getting closer but not quite there yet. I'll be patient.
Yep, it's exactly 36 seconds for me. Of course you can set it up how long to stay in stand-by mode so that it comes up instantly, but the limit is 2 hours. This does not bother me so much ever since I installed a backup camera. It doesn't need to wait for the unit to boot to work. Since I always back out of my garage, this shaves off about 10 seconds out of the wait time.
You can always get a Win8 unit - it does not have this long boot time. But the bigger problem is that it is Win8!
Does anyone know if there's an app or some trick to make my Joying HU go into low power mode immediately after shutting the car off and losing ACC power instead of it taking steps down in power consumption over the 6 minutes or so it normally takes?
It interferes with my Lincoln's alarm system. I can lock the car with the remote and even hear the alarm chirp but the lights don't flash and the alarm LED on the dash does not blink to indicate it's active. I have to wait the 6 minutes the unit takes to power all the way down to sleep mode before it works again.
LunaEros said:
Does anyone know if there's an app or some trick to make my Joying HU go into low power mode immediately after shutting the car off and losing ACC power instead of it taking steps down in power consumption over the 6 minutes or so it normally takes?
It interferes with my Lincoln's alarm system. I can lock the car with the remote and even hear the alarm chirp but the lights don't flash and the alarm LED on the dash does not blink to indicate it's active. I have to wait the 6 minutes the unit takes to power all the way down to sleep mode before it works again.
Click to expand...
Click to collapse
No, you can't. It is in the MCU that controls this "go to sleep" process.
The only thing you can do is to switch off the deep sleep and let it go completely down. It means you will have a startup time of around 40 secs every time you switch on ignition.
Damn. There has to be some way I can work around it without having the unit power off completely.
BTW, Surfer, I've noticed the forum sections for MTC units and was reading the WIKI on them. I suspect I don't have an MTC unit since under the MCU section I don't have an MTC prefix in it anywhere even though it shows a JY designation in it which is apparently one of the MTC types too.
Am I correct that my unit is not an MTC unit?
Select AUTO SLEEP in AUTO settings, if available in your HU.
With my PX5 HU the power drain falls to 0,01 AMP within 20 secs after ACC is off. The HU enters a standby state like a PC, and resume immediately after ACC is on.
Tested on my bench.
themissionimpossible said:
Select AUTO SLEEP in AUTO settings, if available in your HU.
With my PX5 HU the power drain falls to 0,01 AMP within 20 secs after ACC is off. The HU enters a standby state like a PC, and resume immediately after ACC is on.
Tested on my bench.
Click to expand...
Click to collapse
I'm pretty sure that's already enabled by default since it starts up immediately whether the car's been off for a minute or all day. The problem is it has at least two step downs to get to sleep mode from what I've read elsewhere on xda and it seems to coincide with what I see my unit doing. If it's any length f time before six minutes my alarm won't arm but if it's after the six minutes I've seen it takes for these to go into full sleep then my alarm works normally.
LunaEros said:
Damn. There has to be some way I can work around it without having the unit power off completely.
BTW, Surfer, I've noticed the forum sections for MTC units and was reading the WIKI on them. I suspect I don't have an MTC unit since under the MCU section I don't have an MTC prefix in it anywhere even though it shows a JY designation in it which is apparently one of the MTC types too.
Am I correct that my unit is not an MTC unit?
Click to expand...
Click to collapse
No, you have a FYT unit, not an MTC unit.
themissionimpossible said:
Select AUTO SLEEP in AUTO settings, if available in your HU.
With my PX5 HU the power drain falls to 0,01 AMP within 20 secs after ACC is off. The HU enters a standby state like a PC, and resume immediately after ACC is on.
Tested on my bench.
Click to expand...
Click to collapse
That is an MTC unit. On a FYT unit on a Sofia 3GR and a PX5 it takes 4 minutes before the unit is completely down. power drain is 0.8 A after ignition off and 0.01~0.02 after 4 minutes.
On a FYT SC9853i this time is much shorter than 4 minutes.
If a program holds a wake lock the unit will stay on for about 20 minutes. Then it will be completely powered down by the MCU.
LunaEros said:
I'm pretty sure that's already enabled by default since it starts up immediately whether the car's been off for a minute or all day. The problem is it has at least two step downs to get to sleep mode from what I've read elsewhere on xda and it seems to coincide with what I see my unit doing. If it's any length f time before six minutes my alarm won't arm but if it's after the six minutes I've seen it takes for these to go into full sleep then my alarm works normally.
Click to expand...
Click to collapse
Exactly. Android is down in 2-10 secs. It is the head unit hardware (Amp, Radio chip, etc.) that takes longer.
But 6 minutes is really very long. Especially the SC9853i FYT units should be "down" within a minute.
Please check if one of your programs holds a wake lock thereby keeping the unit awake for much longer.
surfer63 said:
Please check if one of your programs holds a wake lock thereby keeping the unit awake for much longer.
Click to expand...
Click to collapse
Hmm. Not sure how to check that, Surfer. Can you give me an idea how to check if an app is holding a wake lock?
**Bump**
Surfer? How to check if an app's holding a wake lock?
I also went through all the settings and it seems there's not even an option to turn off the fast reboot all the time. Seems the only way I can is to use the pulldown on the navbar and make it reboot manually.
So I can't turn it off even if I wanted to, apparently.
LunaEros said:
**Bump**
Surfer? How to check if an app's holding a wake lock?
I also went through all the settings and it seems there's not even an option to turn off the fast reboot all the time. Seems the only way I can is to use the pulldown on the navbar and make it reboot manually.
So I can't turn it off even if I wanted to, apparently.
Click to expand...
Click to collapse
Please think.
Did you even google? or simply type wakelock in the play store?
Try the wakelock detector from the play store.
surfer63 said:
Please think.
Did you even google? or simply type wakelock in the play store?
Try the wakelock detector from the play store.
Click to expand...
Click to collapse
Ok. Thanks.
Sorry to bug you but like I said, I'm an amateur when it comes to Android.