Database Users

Long startup delays still an issue?

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.
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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!

Sleep mode On or Off

Hi,
I just bought a new Android 8 S200 for my opel astra Station H.
Last week i had battery problems with the car after placement Today i placed a new battery (the other one was very old) and hopefully this ends the problems and the car continues to start without a jumpstart.
But i also want to make sure the new system doesn’t drains the battery.
But there is one question i can’t figure out in the settings menu. Sleep mode on or off
A video on youtube shows my setting, but i cant place a link as the new guy :angel:
It can be found: “s200 sleep mode power setting” from radio upgrade.
What i can’t figure out is what is means when turned ON or when it is turned OFF.
Can anyone explain this to me?
Thanks for the help!
Greet,
Weerz

It's fastboot. When turned on, it will remain on (sleep mode and drain a little battery) so when you turn your can on it will boot fast, usually a second or two in length vice the whole boot up. When this is enable make sure you drive the car daily or every other day so that the battery can recharge itself.

Xtrons Android head unit reboots on acc/ignition

Hey people,
I have a rather complicated question on which I like some kind of clarification or even a solution.
Some information about my car:
Chevrolet Aveo5 2010 model T250
The manual says it needs a 430CCA battery
I had a Xtrons te706pl px5 head unit installed in my car last summer. It worked great and always got out of the standby mode when starting the car.
Then when it got to the of September/start of october. It started cold booting for some reason.
I didn't think anything of it and thought it was a software related issue. So I bought a small subwoofer
(Kenwood ksc sw11). I then went back to the shop where I got it installed and they updated the unit to the latest Android 9 update at the time (this was mid November). And tested the car battery. Which showed to only have 330 CCA left. They told me that my battery was probably the reason it rebooted all the time. Since that sounded reasonably to me since the manual says I need 430CCA I bought a new battery last week. A 400A (EN) Bosch S3 003.
This actually changed did kind of fix the problem but I'm not sure.
If I drive and then leave my car for a short time and come back the radio will get out of standby fine.
(Which didn't happen with the old battery. That one would restart the radio if I only left my car for like 5-10 minutes)
However when I leave if for like an entire day or over night the radio still reboots.
Sleep setting is set to Auto btw.
I also tested this while disconnecting the subwoofer over night and it still rebooted. So it's not like the subwoofer is the difference.
I have multiple theories and I want to know which one is correct.
1.
The radio is software is broken which causes my radio to not stay in standby for longer than X amount of time even tho the sleep setting is set to Auto.
2.
The cars alternator is broken causing it to not deliver the constant 12v the radio needs.
3. (Which I think is the most plausible)
The car battery doesn't deliver enough Amps on ignition to turn of the engine as well as the radio. Basically cutting of the radio's energy causing it to dip below 10v and causing it to lose power.
The reason that in the summer the radio did turn on with a worse battery might be because the hot temps cause the car to need less Power to start which in turn means the radio isn't cut off of power. (This could explain why the old battery was able to start the radio out of standby modus with in between 330 and 430CCA.
If theory 3 is true then I would need a bigger battery so that even in the colder winter (-3 to 10 degrees Celsius) my radio still boots out of standby. In that case how much CCA and Ah do I need. Since I have a problem because of the ****ty nature of my car where the plus pole needs to be on the left when the poles are facing yourself. I haven't come across a car battery thats the same size as the Bosch S3 003 that I have now but have more than 400CCA)
Wider ones don't fit the plateau which holds the battery. And my connectors for the battery can't reach taller than the 190mm batteries.
If it's not theory 3 but either 1 or 2 then please give me some tips/advice about further actions I could take. Maybe a secondary battery or something I don't know.
Could anyone help me with this problem?
If you need more information I'm more then happy to give it.

There are some voltage stabilizers available on Aliexpress, you may benefit from one of those.

embalu said:
There are some voltage stabilizers available on Aliexpress, you may benefit from one of those.
Click to expand...
Click to collapse
What exactly does a voltage stabilizer do? And are they difficult to install?

Low Power Mode

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.
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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.
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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.
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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.

Standby battery drain

I recently installed an Android head unit type YT9216CJ and figured it sucks around 500mA of current constantly. So it only took 3 days for my car battery to run flat. It seems high standby battery drain is quite common amongst Android head units. Don´r really get why as my Android phone and tablet only use around 20mA or less in standby. I assume the Android head units don´t shut down the power amp and other units while in stand-by.
So my question is:
- Is there any way to reduce standby drain to reasonable levels - without having the head unit to shut down completely after ACC off?
- Are there Android head units that have decent standby drain and wonßt such the battery dry within days?
Thanks

Either headunit has been incorrectly installed (such as swapping b+ and ACC) or the unit is defective.

TruePlaya1977 said:
I recently installed an Android head unit type YT9216CJ and figured it sucks around 500mA of current constantly. So it only took 3 days for my car battery to run flat. It seems high standby battery drain is quite common amongst Android head units. Don´r really get why as my Android phone and tablet only use around 20mA or less in standby. I assume the Android head units don´t shut down the power amp and other units while in stand-by.
So my question is:
- Is there any way to reduce standby drain to reasonable levels - without having the head unit to shut down completely after ACC off?
- Are there Android head units that have decent standby drain and wonßt such the battery dry within days?
Thanks
Click to expand...
Click to collapse
Well, if you are able to measure the current, you also should be able to measure the power on clamp 15 and clamp 30 of your unit.
If you have a look at your installation guide, you should see the battery plus and the ACC.
Your measurement shows clearly that you need to swap the yellow and the red wire on your connection.
In deep sleep, the unit should not take more than around 12-15mA. A really good one just takes 7mA. It clearly shows, that your unit get rid of the battery plus and keeps Android awake. This is the clear picture I see.
500mA is the Android board without any other stuff. If the PA would not get of, the current would be more than 2A instead of 500mA.
So check the connection in the installation guide and measure the pins with and without ACC.

rigattoni said:
Well, if you are able to measure the current, you also should be able to measure the power on clamp 15 and clamp 30 of your unit.
If you have a look at your installation guide, you should see the battery plus and the ACC.
Your measurement shows clearly that you need to swap the yellow and the red wire on your connection.
In deep sleep, the unit should not take more than around 12-15mA. A really good one just takes 7mA. It clearly shows, that your unit get rid of the battery plus and keeps Android awake. This is the clear picture I see.
500mA is the Android board without any other stuff. If the PA would not get of, the current would be more than 2A instead of 500mA.
So check the connection in the installation guide and measure the pins with and without ACC.
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Click to collapse
I am using the vendor provided harness for my Ford Focus MK2. ACC an BAT+ are correctly wired. I can simulate ACC and BAT+ with my bench supply and I get the same picture. display and music turns off after ACC loss but power draw ist constantly around 500mA. I rather think that either sleep mode is implemented sloppy or some system components are not put to standby at all.
A quick google reveals that a lot of people experience the same problem with their Chinese Android head unts. So I assume this must be a construction flaw. Hence my question are there head units that go into standby correctly? Maybe some name brands?

TruePlaya1977 said:
I am using the vendor provided harness for my Ford Focus MK2. ACC an BAT+ are correctly wired. I can simulate ACC and BAT+ with my bench supply and I get the same picture. display and music turns off after ACC loss but power draw ist constantly around 500mA. I rather think that either sleep mode is implemented sloppy or some system components are not put to standby at all.
A quick google reveals that a lot of people experience the same problem with their Chinese Android head unts. So I assume this must be a construction flaw. Hence my question are there head units that go into standby correctly? Maybe some name brands?
Click to expand...
Click to collapse
So even on bench testing, without connected external Amp and other stuff, shows up with 500mA in standby?
It takes about 1min to reach deep sleep, but I guess you waited that long for sleep mode.
500mA should be the exact consumption the Android system would take without screen, just in operating mode. Screen, music and all this stuff is NOT controlled by Android, it´s controlled by the system-board.
I just think that the screen backlight is switched off, so you just think it´s off. Check that.
Check the CAN settings.
I just know installations which are not done correctly, so Clamp 15 and 30 wrong, or CAN settings incorrect. I never heard of any unit which had a hardware issue which leads to this high current.
There are a lot of different supplier who sell better units.
Joying as example and the derivatives. --> https://forum.xda-developers.com/f/fyt-android-head-units.12445/

rigattoni said:
So even on bench testing, without connected external Amp and other stuff, shows up with 500mA in standby?
It takes about 1min to reach deep sleep, but I guess you waited that long for sleep mode.
500mA should be the exact consumption the Android system would take without screen, just in operating mode. Screen, music and all this stuff is NOT controlled by Android, it´s controlled by the system-board.
I just think that the screen backlight is switched off, so you just think it´s off. Check that.
Check the CAN settings.
I just know installations which are not done correctly, so Clamp 15 and 30 wrong, or CAN settings incorrect. I never heard of any unit which had a hardware issue which leads to this high current.
There are a lot of different supplier who sell better units.
Joying as example and the derivatives. --> https://forum.xda-developers.com/f/fyt-android-head-units.12445/
Click to expand...
Click to collapse
Yes exactly, just the unit on its own with GPS-antenna connected. I´ve waited for half an hour and still around 500mA draw. No CAN bus adapter on my unit. It´s a real pity as I do like the unit generally. But no use if battery gets depleted within 3 days.
I am wondering if anybody else took standby drain measuements on their units. And what the findings are.

TruePlaya1977 said:
Yes exactly, just the unit on its own with GPS-antenna connected. I´ve waited for half an hour and still around 500mA draw. No CAN bus adapter on my unit. It´s a real pity as I do like the unit generally. But no use if battery gets depleted within 3 days.
I am wondering if anybody else took standby drain measuements on their units. And what the findings are.
Click to expand...
Click to collapse
I can say for myself, as I measure all new head units before they get installed in the car.
...and even one is always connected to my power supply which shows the numbers in mA.
That badest one was a PX5 from 2018/19, don´t remember exactly, but this one took about 26mA in sleep mode.
The PX6 which I am using now eat up 4mA in deep sleep. That I am not using a Joying is just model-related, as they don´t provide the screen-movement like I wanted to have.
Checked that with my oscilloscope.

TruePlaya1977 said:
So my question is:
- Is there any way to reduce standby drain to reasonable levels - without having the head unit to shut down completely after ACC off?
- Are there Android head units that have decent standby drain and wonßt such the battery dry within days?
Thanks
Click to expand...
Click to collapse
have you see this?

dedalos91 said:
have you see this?
Click to expand...
Click to collapse
Yes I have. My unit did not come with a CAN bus adapter as my steering controls are old fashion resistive type.

rigattoni said:
I can say for myself, as I measure all new head units before they get installed in the car.
...and even one is always connected to my power supply which shows the numbers in mA.
That badest one was a PX5 from 2018/19, don´t remember exactly, but this one took about 26mA in sleep mode.
The PX6 which I am using now eat up 4mA in deep sleep. That I am not using a Joying is just model-related, as they don´t provide the screen-movement like I wanted to have.
Checked that with my oscilloscope.
Click to expand...
Click to collapse
OK thanks for the info. Good th know there are units out there with decent standby drain. My unit was quite cheap so I am guessig reason for its low price is that it comes with some issues. Will investigate further on my bench. For now the old stereo went back into the car

what MCU version is in the system? I have a 3-year-old 9218DH and an old MCU 3.1, and the sleeper works fine. Even though the car was parked for a whole week, the unit was put to sleep. After turning the key, it started up in about 1-2 seconds and remembered everything when I stopped the car. It should be updated to MCU 4.0, but there is no time. The truth is that I have canbus connected. Sleep controls the mcu

I´ve found a solution that lets me choose if I want the head unit to go to sleep mode (standby draw around 15mA) or shut down (standby draw around 1mA).
Here is a short description on how to change sleep mode settings in Android Head Unit:
1. Go to Factory Settings in Car settings
2. Enter Password "8888"
3. Select "Engineering Test Debugging"
4. Enter Password "26959910"
5. Select which mode suits best
5.1 User Mode = Only screen goes off after ACC loss, standby power draw is around 500mA
5.2 Direct sleep mode = phone goes to sleep after ACC loss, standby power draw is around 15mA
5.3 Sleep then restart mode = phone goes to sleep after ACC loss (dont know difference to Direct sleep mode), standby power draw is around 15mA
5.4 Direct shutdown mode = Powers down head unit after ACC loss (will do cold boot after ACC on), standby power draw is around 1mA
6. Press OK and leave factory settings
This did it for me.