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A2DP / AVRCP wakes up device after screen toggle off?!

(This was posted in the Titan forum, but since I beleive it is not device specific, I'm re-posting it here... )
I love using a2dp in my car stereo... sound quality is great, and I love carrying my tunes wirelessly from my WM6 PPC (HTC Titan) to the car speakers (Sony BT25000 stereo head unit installed in car).
Only problem is that I try to keep the screen off to save battery power, but everytime I press a command on my stereo (pause, next, previous, etc...), it wakes up the phone and I need to screen toggle it off again each time!
This is very annoying, so I was wondering if anyone had any experience with this problem, and is there a workaround?
I was thinking of writing some sort of MortScript to constantly check if the screen is on, and if so apply a screen toggle command, but it seems like this may create the problem of an infinity loop when I DO want to use it (turn on device, mortscript turns off screen off right away, repeat). Any suggestions?
Thanks!

Dishe;1453299the screen off to save battery power said:
I have the same problem with my Hermes. With WM6 I can finally play music in suspend mode, but as you say as sson as I use AVRP it wakes up..
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Click to collapse

jompao said:
I have the same problem with my Hermes. With WM6 I can finally play music in suspend mode, but as you say as sson as I use AVRP it wakes up..
Click to expand...
Click to collapse
I have noticed that when I use Core Player, the screen wakes up for a split second when a command is received and then does back to sleep. Of course, you would have to go through the menu of core player to activate the 'screen off' feature. This was tested on a X7501 running WM6.

Nokia BH-214 BT headset error

I've got BT headset Nokia BH-214, described also in this forum, but not in Nexus part -> LINK.
I have problem, because the pause/play button doesn't work corectly. The phone reacts to this button press only time to time, eg. after a few presses. I checked logs, and I found, that there is no system reaction on this button. When phone reacts - system stops a2dp.
Here you are pastebin with logs.
The headset is fine, because I tested with Nokia phone. I found by Google, that this headset should work fully with Android. Could you advice me, what's is going on? How to fix it?
I have CM-7 RC1.

[Q] galaxy tab 7.0 on car like stereo system

hi all,
i think i need help from you guys.
i am working to install our tab as stereo car. it work very well !!!!!!!
my question is, there is a way to power on the device without use power button? i plan to connect it to my notebook.
this, for me, make big difference in making the mould for the car dashboard.
thanks indeed and happy new year!!!

giangishanghai said:
hi all,
i think i need help from you guys.
i am working to install our tab as stereo car. it work very well !!!!!!!
my question is, there is a way to power on the device without use power button? i plan to connect it to my notebook.
this, for me, make big difference in making the mould for the car dashboard.
thanks indeed and happy new year!!!
Click to expand...
Click to collapse
If you want to take the case apart you could remove the power button and wire in a short throw solenoid that is activated by the car's internal 12 volt power. This would trigger the tablet's power button automatically when the car started.
You'd need to root the device to install a power off button on the homescreen through so you could power it off via the touch screen.

Skipjacks said:
If you want to take the case apart you could remove the power button and wire in a short throw solenoid that is activated by the car's internal 12 volt power. This would trigger the tablet's power button automatically when the car started.
You'd need to root the device to install a power off button on the homescreen through so you could power it off via the touch screen.
Click to expand...
Click to collapse
thanks man,
about root and install power off button i already done it, no problem, and i am working with "smart screen on" and "off ".
about your suggestion, i am not sure if i am able to follow your idea with my poor knowledge. i will appreciate if you can give me a little step by step guide.
eventually.... let's say that i dont want to remove the power button..........
if the device for some reasons will shut down (not just the screen, i mean total power off) is there a way via pc to power on again without use the power button?
maybe adb command or other way?
thanks again to all, i have almost finish all the work so that i am ready to assebly it on the car.......
cheers

Well you can't use adb to power on the device. That deffinately doesn't work.
What I was talking about was using a solenoid that runs on 12 volt power. Basicly a solenoid lets one electrical circuit influence another electrical circuit without the two circuits connecting.
The car's DC power would activate the solenoid which is basicaly just an electromagnet. When it has power the electromagnet activates and a little piston inside it completes an electrical connection for the circuit you want to power.
Learn more here
Even easier to wire, you could also move the power button. Just take out the one that's in the tablet and run two wires from the existing leads to another power button that you remote mount somewhere else. This won't be automated to start when the car does, but it will let you use a remote mounted button that functions exactly like the existing power button.
The only down side is the difficulting in installing those lead wires. The power button in the tablet is wired with a VERY TINY ribbon cable. It's basicly two copper lines embedded in a single flat plastic wire. It's very delicate work to cut those and soilder in new wires. It can be done, but it takes a delicate hand with surgical precision.
If you do it right though, it will work like a bloody charm. And you can put a power button on your dashboard somewhere that's easily accessible.
The 3rd option, that's the least high tech, is to fabricate something that lets you press the existing power button. Perhaps a hole in the dash bezzel that surrounds the tablet that lets you stick a finger in under it and hit the button. That's guarenteed to work. It just involves careful fabrication to make it look nice.
Also, for the application you're trying to use the tablet for, read through this message board....
http://www.mp3car.com/vbulletin/
It's a message board dedicated to in car computers. I built a Windows 2000 based PC to run GPS and audio in my car and that forum was absolutely invaluable. If there's another sollution to remote mounting smartphone power buttons it will be there with how to guides. It's a great community for getting help doing the kind of project you are working on. They will probably have good software ideas for you too to get the best use out of the tablet for your purposes.

Skipjacks said:
Well you can't use adb to power on the device. That deffinately doesn't work.
What I was talking about was using a solenoid that runs on 12 volt power. Basicly a solenoid lets one electrical circuit influence another electrical circuit without the two circuits connecting.
The car's DC power would activate the solenoid which is basicaly just an electromagnet. When it has power the electromagnet activates and a little piston inside it completes an electrical connection for the circuit you want to power.
Learn more here
Even easier to wire, you could also move the power button. Just take out the one that's in the tablet and run two wires from the existing leads to another power button that you remote mount somewhere else. This won't be automated to start when the car does, but it will let you use a remote mounted button that functions exactly like the existing power button.
The only down side is the difficulting in installing those lead wires. The power button in the tablet is wired with a VERY TINY ribbon cable. It's basicly two copper lines embedded in a single flat plastic wire. It's very delicate work to cut those and soilder in new wires. It can be done, but it takes a delicate hand with surgical precision.
If you do it right though, it will work like a bloody charm. And you can put a power button on your dashboard somewhere that's easily accessible.
The 3rd option, that's the least high tech, is to fabricate something that lets you press the existing power button. Perhaps a hole in the dash bezzel that surrounds the tablet that lets you stick a finger in under it and hit the button. That's guarenteed to work. It just involves careful fabrication to make it look nice.
Also, for the application you're trying to use the tablet for, read through this message board....
http://www.mp3car.com/vbulletin/
It's a message board dedicated to in car computers. I built a Windows 2000 based PC to run GPS and audio in my car and that forum was absolutely invaluable. If there's another sollution to remote mounting smartphone power buttons it will be there with how to guides. It's a great community for getting help doing the kind of project you are working on. They will probably have good software ideas for you too to get the best use out of the tablet for your purposes.
Click to expand...
Click to collapse
you are really the man,
thanks indeed cause u spend time to help me, i already found some quite good stuff, but i'am not satisfy.
i will follow your suggestion, i will learn more and i will let you know about.
thanks a million again and keep in touch
cheers, happy new year!!!!!

I have one in my dodge magnum. If your looking to have your tablet turn on with the ignition you can try a program called tasker.
I have power supply attached to my ignition and when I turn on engine my tablet wakes up. I have a ton of things automatically start when it recieves power. Everything pauses when it doesnt recieve power.
Or you could also try tablet talk and maybe those nfc sticker things. You have a lot of options of you dont want to open up the tab.
Sent from my SAMSUNG-SGH-I317 using xda premium

intruda119 said:
I have one in my dodge magnum. If your looking to have your tablet turn on with the ignition you can try a program called tasker.
I have power supply attached to my ignition and when I turn on engine my tablet wakes up. I have a ton of things automatically start when it recieves power. Everything pauses when it doesnt recieve power.
Or you could also try tablet talk and maybe those nfc sticker things. You have a lot of options of you dont want to open up the tab.
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
thanks for your help too
but i think you are talking about to wake up tablet, right?
my question was about to power ON the device without to press power button, not just wake up. about this i have already manage it with smart screen on/off from the play store...........
cheers

giangishanghai said:
thanks for your help too
but i think you are talking about to wake up tablet, right?
my question was about to power ON the device without to press power button, not just wake up. about this i have already manage it with smart screen on/off fom the play store...........
cheers
Click to expand...
Click to collapse
Did you get that app working well? I couldn't make it work at all.
The whole idea sounded neat even though Im not doing a car install.
Sent from my GT-P5110 using xda app-developers app

Skipjacks said:
Did you get that app working well? I couldn't make it work at all.
The whole idea sounded neat even though Im not doing a car install.
Sent from my GT-P5110 using xda app-developers app
Click to expand...
Click to collapse
hi man,
yes, i have installed smart screen off (that can also wake up the device) and it work very well.
i am using two wave to let the screen off and two wave to wake up. all other setting as default.
Smart Screen Off 2.0
let me know if i can help you in some way.
cheers

I second the Tasker solution. Also, since you're mounting in the car anyway, i would look at an app called Torque. A cheap bluetooth OBD2 interface can be used, and Torque can be set to put the device in standby when ignition is turned off or when tab isnt "plugged in" (because power to tab is switched by ignition).
Using Tasker, you can wake the device when the ignition is on, then start the apps you use while driving (pandora, maps, nav, my tracks, etc). There's a bit of a learning curve with Tasker, but spend a bit of time with it, and you will start to see its potential!

Yes. Tasker is a great app. I use that in my og galaxy tab I have installed in my car. I wouldn't worry about powering the device on and off. If your trying to save power, you won't lose much even on really hot or cold days. Tasker has a lot of options that you can set to help save power.
Sent from my HTC EVARE_UL using xda app-developers app

Weird behavior when headphones are connected

Hello guys, first post here.
So I have this problem with my Z1c: When my headphones are connected, the notification volume goes all the way up and when I am listening to music, the volume of it randomly goes up and down (without me pressing any buttons). Also, the power button stops working, I can't turn the screen off.
I think my phone is recognizing my headphones as a headset (Smart Connect says so) and it thinks I am pressing some non-existent buttons.
I have tried disabling Smart Connect and even factory resetting my Z1c. Neither has solved the problem. Is the headphone jack busted?
By the way, the problem exists with both my in-ears and over-ear headphones.
I haven't found anything online about this particular problem.
Thanks,

Wouter Vork said:
Hello guys, first post here.
So I have this problem with my Z1c: When my headphones are connected, the notification volume goes all the way up and when I am listening to music, the volume of it randomly goes up and down (without me pressing any buttons). Also, the power button stops working, I can't turn the screen off.
I think my phone is recognizing my headphones as a headset (Smart Connect says so) and it thinks I am pressing some non-existent buttons.
I have tried disabling Smart Connect and even factory resetting my Z1c. Neither has solved the problem. Is the headphone jack busted?
By the way, the problem exists with both my in-ears and over-ear headphones.
I haven't found anything online about this particular problem.
Thanks,
Click to expand...
Click to collapse
Haven't ever used smart connect myself, but there's obviously bugs with it, (quick search turns up pages of complaints on Sony forums). Seems like one of those things they just didn't get right, in general. Since it's persistent after hard reset, my guess is hardware, but just to be clear - when you did a factory reset, it still did the same thing right off the bat, without you adding or tweaking anything, right? Also did you just factory reset, or did you reflash the rom? If it's a problem with the system flash, a reset won't change it.
I would try to reflash system, and see if the same. Also, are you rooted? You can try removing smart connect app, etc. (make a backup)...
Also, have you seen this - https://play.google.com/store/apps/...key&pcampaignid=APPU_1_kgNwWerXJYbf-QHv8Jy4Aw

levone1 said:
Haven't ever used smart connect myself, but there's obviously bugs with it, (quick search turns up pages of complaints on Sony forums). Seems like one of those things they just didn't get right, in general. Since it's persistent after hard reset, my guess is hardware, but just to be clear - when you did a factory reset, it still did the same thing right off the bat, without you adding or tweaking anything, right? Also did you just factory reset, or did you reflash the rom? If it's a problem with the system flash, a reset won't change it.
I would try to reflash system, and see if the same. Also, are you rooted? You can try removing smart connect app, etc. (make a backup)...
Click to expand...
Click to collapse
Thanks for your reply levone,
Smart Connect was working flawlessly for me since i got the phone which was a couple of years ago, but unfortunately these last few days I have run into this problem. My phone isn't rooted, so I can't remove it. (it's a system app)
I just did a factory reset, not a reflash, and it did the same thing right off the bat. I don't know how to reflash, so I'll have to research that if the problem persists.
I will try the Smartkey app, thanks for that.

Alright, I tried Smartkey, the problem is still there. Next I tried reflashing the ROM, the problem is still there .
Next I tried disabling Smart Connect and installing Smartkey on the reflashed phone, just to see if it did anything, it didn't.
So, this must be a hardware problem, right? Headphone jack busted in some way?
Appreciate your thoughts,

Hello,
i had also issues with the headphone jack. In mine were fluffs (lint, dust - not my native language, so sorry for using bad words).
after removing there weren´t any issues.
Greetings

I had the same problem. Replacing the headphone connector was the solution, in my case of course. But you could first try to clean connector. If problem persist you have to change definitely the connector.

Garmin Speak Test / Diag Mode

Hi there,
I didn't find any discussion to the Garmin Speak deivces.
I thought they could be nice for investigating any possible software modifications.
The device is equipped with a MT6630 chipset.
I bought a unit from the US and I am using this in Germany. The device is alexa powered but unfortunatley doesn't support any other languages then English yet.
Therefore using alexa and navigation is working but not as comfortable as it could be.
I'm no dev at all, therefore rather helpless
What I found is a test /diag mode that can be activated on the device.
It's a bit tricky to get there: While turning on, hold lower button (not the mic button) until GAMIN icon flashes ~5 times. Then release button and hold mic button.
The ring will be colored in pink and a "loading..." screen appears.
After that I released the mic button again and then kept holding both buttons for some secons until the pink ring disapperead.
What you get are modes like this:
https://www.youtube.com/watch?v=k43U4sNFkAk
https://www.youtube.com/watch?v=wQOL5Ky28as
That's not a lot and lot especially helpfull.
While testing, I realized that the deivce was recognized as a "Garmin USB device" (not as "Garmin Speak" in between - but just for some seconds.
I wonder if there are possibilites to get into a bootloader/fastboot/adb mode.
Anyone know if the recive runs a android base? Any experience with that?
Christian