HW8227L-3.3-SW0-1.9 Head Unit - Always cold boot - MTCD Android Head Units Q&A

Hey, New here.
I bought a android head unit for my Mercedes, installed it fine, but there wherent any can-bus adapters with it, so I had to reroute the acc to the AC, so it gives out 12v on startup. That works perfectly, however, I am wondering why it cant be in standby mode for a wile, why it turns off? its ok that the ACC cable cuts the power to the screen, but I thought the direct line(BAT) would keep it alive and in standby.
Is there anyway to get around this?
Here is the link to the unit I bought: banggood.com/10_1-Inch-2-DIN-Android-7_1-WIFI-Car-Radio-GPS-Navigation-Audio-Stereo-Car-MP5-Player-p-1432315.html?rmmds=myaccout-bottom-alsolike__1&cur_warehouse=CN
Thanks for helping

Take a look into "extra settings" -> "Shutdown delay if ACC OFF". There you can set it to "Auto sleep".
After that the unit should be every time in standby mode. For me it works fine.

le_mi said:
Take a look into "extra settings" -> "Shutdown delay if ACC OFF". There you can set it to "Auto sleep".
After that the unit should be every time in standby mode. For me it works fine.
Click to expand...
Click to collapse
Thanks, but I cant find any "extra settings". Ive tried to use the car settings, factory settings etc, but nothing there either. And since its a MB, and the unit isnt "compatible" out of the box, the system dont have MB settings in the factory settings.
And one more thing, it is really slow. using google maps, apple music and the launcher at the same time, its horrible. it should be able to run those 3 things at once.

As I can see in the description of the seller it is a quad core with 2 gb ram. I had an unit like that too and it was really slow. This was the reason why I bought me a new px5 with 4gb ram and octa core. This is very fast.
Are you sure that you don't have an option called extra settings?
On my old PX3 which had the same conditions like yours there was the option available.
Can you post some pictures of your settings screen!?

YodaAlmighty said:
Hey, New here.
I bought a android head unit for my Mercedes, installed it fine, but there wherent any can-bus adapters with it, so I had to reroute the acc to the AC, so it gives out 12v on startup. That works perfectly, however, I am wondering why it cant be in standby mode for a wile, why it turns off? its ok that the ACC cable cuts the power to the screen, but I thought the direct line(BAT) would keep it alive and in standby.
Is there anyway to get around this?
Here is the link to the unit I bought: banggood.com/10_1-Inch-2-DIN-Android-7_1-WIFI-Car-Radio-GPS-Navigation-Audio-Stereo-Car-MP5-Player-p-1432315.html?rmmds=myaccout-bottom-alsolike__1&cur_warehouse=CN
Thanks for helping
Click to expand...
Click to collapse
same problem, mine is android 8 GO after just 12 second it powered in cold boot. does any one have a solution to this problem?
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Related

[Q] Browser screen sensitivty issue and Bluetooth pairing/connecting issue

I originally posted this in the SynergyROM section as that is current rom I am running, however I have experienced these same 2 problems on a couple other roms too so I do not believe they are rom-specific issues.
1. I cannot get my Pioneer (model DEH-6400BT) car stereo to pair or connect with my S3. When I try it says would you like to pair and I say ok and it says confirm the 6 digit pin on your device matches the pin on the stereo but it does not show any pin on either and then says Unable to Pair. I also tried wiping data and installing CleanRom and also MeanLeanJellyBean on my phone to see if it would pair on that rom, but it again failed. I had ZERO problems pairing/connecting with my HTC Thunderbolt so I don't know what the hell the deal is?? Should also mention that my SIII pairs and connects to my bluetooth headset just fine....
2. I use the browser A LOT for work and always have a long list of checkboxes to check off (see attached pic to see what I mean, volume slider on there cause i accidentally bumped it when doing screenshot so ignore that). I have found a few browsers that better display what boxes are checked, but when I go thru to check/uncheck boxes I find the screen sensitivity is TERRIBLE. Almost every single time it takes 3-6 attempts to check or uncheck a box. I have tried every major browser in the Play Store. Again, I had ZERO problems with this on my HTC Thunderbolt, always worked the first time, if it didn't check or uncheck it's because I just plain missed the box with my finger. How do I solve this? I use this everyday for work and don't have time to be spending that many attempts just to check a damn box, it's absolutely ridiculous. It blows my mind I am having this problem with such a high-end device as the SIII.
Thank you and Merry Christmas.
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1) Did you try the other way around and sync the phone to radio instead of the radio to the phone? or vice versa. My friends Pioneer deck did the same thing and switching which one was in discovery mode worked.
2) Dolphin browser is dumb, try zooming in a little then go down the line and check the boxes. Maybe try Chrome or my favorite, Boat Browser.?
x714x said:
1) Did you try the other way around and sync the phone to radio instead of the radio to the phone? or vice versa. My friends Pioneer deck did the same thing and switching which one was in discovery mode worked.
2) Dolphin browser is dumb, try zooming in a little then go down the line and check the boxes. Maybe try Chrome or my favorite, Boat Browser.?
Click to expand...
Click to collapse
No I didn't... Have my doubts butI ill try.
Sent from my SCH-I535 using xda app-developers app

Bluetooth creating constant notifications

So with bluetooth on, I get a constant notification whether a device is connected or not. This is all after the MM upgrade.
Steps already taken:
- Verified reminder is turned off in accessibility.
- Cleared cache.
- Removed all BT devices
- Factory reset.
PLEASE HELP
@jasong127
Try settings > wireless and networks > nearby device scanning > off.
Let me know if this works. It uses BT even when off. I turned mine off long ago. Never had your issue and unsure if this may solve it.
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That was already off. I think that when my car (chevy mylink) was connected, there's an option to "Allow Contact" or something like that. Problem is, when the truck is no longer connected, all the other options move to off, except this one.
Happens with one other device too (my home phone system). I have to unpair them and it stops. Pretty much seems like a bug to me.
I will have to test this on my ford transit the next time i use it. I do know it always resets the 911 link, which is annoying.
I'm having the same issues. Just did a factory reset and have not paired any bluetooth devices. But the minute I turn on bluetooth I start getting notifications. Help before I flush my phone.
Samsung Note 5 with Marshmallow update.
Soccerdad91016 said:
I'm having the same issues. Just did a factory reset and have not paired any bluetooth devices. But the minute I turn on bluetooth I start getting notifications. Help before I flush my phone.
Samsung Note 5 with Marshmallow update.
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Click to collapse
Did you have items at one time that were paired? The way I found out the solution is to unplug ever BT device in my house and start one by one. BTW, I have 1 home phone, 3 speakers, and a computer that all use BT. Turned out to be the home telephone that was the cause of it.

Xiaomi - "Sleep Timer" functions not working

Hi, I decided to post here because I'm facing a problem for a while and either the app developer knew how to solver. I'm talking about the Sleep Timer app, speaking of which I saw a post of years ago about it.
So, whats happening:
I use this app for years and it always worked well when I wanted it to turn off Spotify. Recently, I changed my phone and now I use a Xiaomi Redmi Note 5. Since then, the app doesn't work well. Sometimes it works fine, sometimes not. That's how I'm using it now:
- I connect my phone to my Tronsmart bluetooth speaker
- Start the music on Spotify
- Start counter on the Sleep Timer app. I set it configuration to turn off Spotify and turn off bluetooth, so the speaker can auto turn off too when dispair the bluetooth and saves the speaker battery.
I used the app almost every night, setted as "no restriction" in the battery configuration area, with my bluetooth speaker. Speaking of which, last night setted the app to turn off Spotify and bluetooth as always and I woke up in the middle of night and the music was still playing. So, I setted it AGAIN, and I woke up later still in the middle of night with the music still playing, AGAIN.
I made some tests in the daytime instead of before I sleep and the app did its functions. But, its how I said: sometimes works, sometimes not.. To test if the problem was the app, I downloaded another app with the exactly same purpose and functions, and the same missfunction happened. So, it's something to do with the phone configurations too.
What I want with this topic is to see if someone could help me with this problem or at least could indicate some app with these functions that works 100% fine in the Xiomi's phones.
Thanks to anyone who can help me with this!
Here there are some screenshots
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S21 bluetooth volume low

I have a galaxy s21. I just got a warranty exchange and I noticed my Bluetooth volume on my car stereo is not at loud as my old phone.
I have both phones in my possession and played the same song individually on each device and I noticed that the new phone's volume is lower than my old one. All the settings are the same on both phones.
Any clue what's going on? Thanks!
Gsiopis said:
I have a galaxy s21. I just got a warranty exchange and I noticed my Bluetooth volume on my car stereo is not at loud as my old phone.
I have both phones in my possession and played the same song individually on each device and I noticed that the new phone's volume is lower than my old one. All the settings are the same on both phones.
Any clue what's going on? Thanks!
Click to expand...
Click to collapse
I've heard this happen occasionally. Samsung browser sometimes triggers it. Eventually it resets spontaneously. Oddly I haven't seen this behavior for months now. Same load and app versions. It maybe a Developer option setting.
Check all settings again including volume limiting and bt settings in Developer options. Try toggling those, try turning off Disable absolute Volume. Use the master volume control and cycle from zero to 100% a couple times.
Try this as well if the device has this option, may only apply to Wearables:
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blackhawk said:
I've heard this happen occasionally. Samsung browser sometimes triggers it. Eventually it resets spontaneously. Oddly I haven't seen this behavior for months now. Same load and app versions. It maybe a Developer option setting.
Check all settings again including volume limiting and bt settings in Developer options. Try toggling those, try turning off Disable absolute Volume. Use the master volume control and cycle from zero to 100% a couple times.
Try this as well if the device has this option, may only apply to Wearables:
View attachment 5763499View attachment 5763501
Click to expand...
Click to collapse
I will try that! Thanks
Gsiopis said:
I will try that! Thanks
Click to expand...
Click to collapse
It can be quit the pain but it's almost surely a settings issue. There are apps that allow you to access the hidden settings that presumably also would give access to absolute bt volume. I haven't had to try that.
For best audio use the C port hard wire output.
Enable the UHQ upscaler in advanced sound settings.

On-Board computer display

Hello, is there an app or a modification on the hardware to cap the connection to the original build in on board computer display? Most time it only show "other".
I would prefer to see the time and the day like when the radio is disconnected
Nobody knows what your unit is.
Post details from Android system information including MCU version.
Teh crickets (as usual)
Px5
Android 8.0.0
Kernel 4.4.93+
Hal9k Mod v3.1
eng.hct.20181210.171007
MTCE_XRC_V3.01_1
Sorry, took me some time to update
And with the on-board computer display I intend this one
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You have an opel. The picture is showing the onboard trip computer.
You want those values on the headunit?
Or you want the fm radio to appear to that screen?
If it is the latter then if you have attached the odb box that came with your unit you should be able to see fm info on the screen.
You will see other when on Bluetooth call or when you play from youtube or anothe application.
I have not understand clearly wwhat you want to do.
If it is the 1st you want to do then you need a Bluetooth or usb odb adapter and an application called torque. You wont get the trip computer values into the head unit but you will be able to configure torque to measure the same values more or less.
I see the FM radio when I listen to the radio, and I see "other" when I use streaming apps.
But it would be nice if we could exchange the "other" with something more usefull, like the title of the song, or, because I know its very comlicated to realize that, instead of displaying "other", showing the date would also be nicer.
With the original radio, when its turned off, the onboard computer show the date also.
My idea was to somehow block the information send to the onboard computer and automatically the onboard computer should display the date, as if the radio would be turned off.
Maybe its a stupid request but this "other" always on that screen bothers me...
You must ask for this to the dev of every app that display other.
The app should send the data for that to the canbus.
Every app, except for the build-in (radio, media player, bluetooth) show other.
Please read my above post again.
The dev of that every application has to fix his application to transmit the name of what is playing.
At least that is what I know.

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