Bluetooth developer settings don't stick - Google Pixel 3 XL Questions & Answers

I've noticed when trying to change the Bluetooth developer settings on my phone for things like the codec, sample rate, etc. do not remain applied. I can set them, exit to the previous settings screen and go back and they've reverted to the defaults again. No matter what I try whether setting them and restarting the phone, having Bluetooth enabled or disabled while setting them they never stick and always revert to the defaults. Any ideas why? Google searches show users from almost every device having this issue and no fixes seem to be presented or found.

rspkt said:
I've noticed when trying to change the Bluetooth developer settings on my phone for things like the codec, sample rate, etc. do not remain applied. I can set them, exit to the previous settings screen and go back and they've reverted to the defaults again. No matter what I try whether setting them and restarting the phone, having Bluetooth enabled or disabled while setting them they never stick and always revert to the defaults. Any ideas why? Google searches show users from almost every device having this issue and no fixes seem to be presented or found.
Click to expand...
Click to collapse
Same here, I'm trying everything I can think of. No one online seems to know why. My car audio supports LDAC but the android settings won't stick. I wish I could find where they're located in the file system, edit the values, and make them read-only.

Related

[Q] Reflashed CM 10.1.3 And Lost Sound when Choosing

I had done probably one or two too many dirty flashes, so this morning I decided to go ahead and flash and wipe data/cache. The performance increase is pretty noticeable so I'm glad I did it.
I've got about everything back the way I had it and went back to begin setting my sound profiles back up. At first, I went to set my phone ringtone setting and it wouldn't play. I found the problem was that it had kept my old profiles and found a post on XDA developers that said to delete and recreate them. So I did that and now the phone ringtone selector works perfectly.
However, now I'm going in and trying to set the notification sounds. Setting them works flawlessly (in that when the application has a notification, the correct sound plays) but there's no preview (when the list is open and I select the sound from the list- it won't play). I have set one and tested a notification from the app group and it works, but I was hoping to change some and can't listen to them.
I've cleared both caches and run fix permissions hoping for something easy but no go.
Any ideas?

Bluetooth "Phone Audio" turns off and cannot turn back on

I believe I have narrowed it down to the phone as the feature works after I reboot the phone. I noticed this when I got in the car and only the Media Audio led was lit on the receiver. When I go to the bluetooth menu on the phone and select the paired device (car receiver), Phone Audio is unchecked and I cannot re-check it. I have tried deleting the phone from teh car receiver and also the device from the phone and repairing and setting it up. It will connect and cannot select 'Phone Audio'. I also noted that after a reboot, bluetooth feature is turned off and needs to be turned back on. Once I turn it back on and click the gear on the BT device, I can turn on and off the Phone Audio and it will work for a while.
This is an 'all of a sudden' development as I have been running the same firmware and ROM for 9+ months. I am S-off and am running firmware 3.35.401.12 with the ViperOne 4.3 ROM. I have upgraded programs from the play store, but cannot figure out what might be causing this. Can anyone here help me fond a solution?
Thanks!
Keith
So just to clarify, you're using BOTH phone and media Bluetooth connections to the one single bluetooth media AND voice enabled head unit in the car?. One receiver?.
Do you have any apps running that will disable things when battery power gets low, like snapdragon battery guru?. Does your rom have any such features built in?.
Make sure both devices bluetooth lists are clear of old devices that no longer have access on resonable terms. Just to make sure its not scanning for another device as a primary.
Make sure you car audio system is running the latest firmware. It can usually be updated via cd/dvd/sdcard.
As mad as it seems, make sure the time is correctly set on both devices.
Beamed in by telepathy.
Yep, yep and yep.
Battery is full , I do not have battery guru installed. I did not change anything. It just now needs to be rebooted before it will connect to BT Phone Audio. Medial Audio connects and works properly, just as it always has.
I have a single Pioneer Premier head unit that I have used for years with multiple phones. If I reboot the phone before it tries to connect, it will connect and Phone Audio works. When it is 'locked out' (my term), I cannot select the block on the that is labeled 'Phone Audio' to check it. As the screenshot shows, it is 'unchecked' and no amount of touching it will check it. The only way to 'check' it is to reboot the phone. Oddly, it reboots with bluetooth turned off and when I turn it on, usually, it is already enabled (Phone Audio).
Thanks for the help,
Keith
After a little research it would appear that, apart from being right about the max enroled devices allowed is 3, "discoverable mode" is required.
Did you connect the phone to the radio or the radio to the phone?. Which discovered which for pairing?. Try pairing the other way from the way you did.
Can you access any options by holding or tapping on any of the fields in the picture above. Something to do with pbap if you can find it and turn it off, most likely under contact sharing. If not, dont worry.
Try turning contact sharing off or see if the stereo will copy them and store them so you can turn that feature off.
Other than that it could just be an incompatibility between the devices. It is not unknown for car audios to be crap hardware.
Beamed in by telepathy.
I am on teh same page of keithspg
I recently resetted my HTC M9 and as coinsequence I have been obligated to reinstall all BT devices (car, 2 headest, laptop)
It worked well (as in the past) for few days but now I have the same issue : I cannot switch on the audio phone !!!
Below the picture:
I could not find any other solution than to wipe the ROM and reinstall. I am now running viper 6.0. no problems. If you are not soff, you may want to ruu it. If you are soff you may want to wipe and install again whichever ROM you are running.
Keith
keithspg said:
I could not find any other solution than to wipe the ROM and reinstall. I am now running viper 6.0. no problems. If you are not soff, you may want to ruu it. If you are soff you may want to wipe and install again whichever ROM you are running.
Keith
Click to expand...
Click to collapse
I am S-On and completely stock
I cannot wipe my smartphone (it is a company smartphone)
I fixed the problem with a simple soft reboot
Inviato dal mio HTC One M9 utilizzando Tapatalk
I am also having the exact same issue. I still have not been able to track down which app is the one causing this conflict. I have also done a factory restore and that seems to have worked for a time but the issue started again. It may be unrelated but... Have you changed the themes? I think that's one of the last things I did before it stopped working. Also restarting the phone "fixes" the issue for one connect/disconnect, but after the bluetooth is disconnected it will no longer allow to use phone audio. I have gone into the settings for the "Paired Bluetoth devices" and I am unable to check "Phone audio". It is not grayed out but it doesn't work either. This issue is driving me crazy, I hate to have to restart the phone every time I get in and out of the car just because the bluetooth wont sync. That being said, I have another clue into the issue. Today I was using the bluetooth in the car while on a phone call and transitioned to my Jawbone Icon when I exited the car flawlessly. I turned off the car, turned on Jawbone (so there wouldn't be a conflict of the Jawbone trying to connect to the phone while it was still connected to the car) Immediately the Jawbone connected and I was able to carry on with the conversation. I was really happy about this. However, when I was done with my phone call I turned off the Bluetooth and turned off the Jawbone. About an hour later I received a video through Whatsapp and when I played it there was no volume. When I pressed the volume button on the phone the volume bar had the Bluetooth symbol!!! The Bluetooth had been off for quite a while now and there where no Bluetoth devices present.
Hopefully this gives some insight into this issue that will help resolve it. Thank you very much!
I have also tried the soft reset and the issue persists.
HTC One M9 Not Rooted
Android 6.0
Patch Lvl Dec 1, 2016
Sense 7.0
Software # 3.37.605.19
This is currently happening to me too. No fix yet. I tried this on other bluetooth devices that are hands-free capable like my portable speaker, and the same issue occurs.
HTC One M9
Android Revolution HD 20.0
Android 6.0
Sense 7.0
S-off
I am having the same issue
HTC One m9
Viperonem9 5.1.0
I have tried wiping / reflashing and still haven't resloved the issue.
this is super annoying I hope someone finds a fix soon
The issue is randomically annoying me too but , as I said few time ago, fortunately I am fixing always doing a restart
Inviato dal mio HTC One M9 utilizzando Tapatalk
I have recently had this problem on my stock ROM HTC 10. The HTC Australia website online chat actually gave me a solution which worked (!)
Settings > Apps > ... (menu) > Show system > Bluetooth Share > Storage > Clear Data
New findings on my phone.
I have an M9, rooted, unlocked and s-off. It has a stock ROM. I have had this issue for a while now. I don't know when or how it started. Everything used to apparently work fine. Could have been some update or an app I added at some point in time that possibly we all share. I had been restarting the phone as well to get the "phone audio" to work. That became excruciatingly tedious. I did find that, on my phone at least, placing the phone in airplane mode, waiting a moment for that to kick in, then starting up the Bluetooth, brought it up with "phone audio" checked. Then I would just turn airplane mode off.
Still a ridiculous way of getting it to work correctly. However, if this technique works for others as well, then I am thinking that airplane mode is disabling a service or something that is keeping it from connecting correctly. I will be looking into this as I hope some more savvy folks will be as well. If someone does figure it out, please share.
---------- Post added at 11:24 AM ---------- Previous post was at 10:30 AM ----------
I found another thing that might be causing the issue by reading other forums. I made the adjustment on my phone this morning and I believe it to be working at this time. (For now anyway). I think it might be related to location services accuracy settings. There are a couple of ways to get there. In Bluetooth settings when the Bluetooth is off, you might see a link to it on the initial Bluetooth page. Otherwise, I found them under, Settings/Location. I have my mode set to "Battery Saving". But under the triple dot should be Scanning. Here I turned off Bluetooth scanning and things seem to be doing okay thus far. Just seems like it takes a few seconds longer to connect to my devices. However, so far, no issues. I may be speaking too soon. If I find it didn't work, I will correct myself in another post.
Best Regards,
Lyndon
Same problem. Either after using my Fiat Car bluetooth system, or after my BLT bluetooth headset, my Phone audio stops and I have to restart my phone.
On my bluteooth headset I only use the "media" audio.
I am using a Samung galaxy 3 watch also.
Huib
Thank you!
[/COLOR]I found another thing that might be causing the issue by reading other forums. I made the adjustment on my phone this morning and I believe it to be working at this time. (For now anyway). I think it might be related to location services accuracy settings. There are a couple of ways to get there. In Bluetooth settings when the Bluetooth is off, you might see a link to it on the initial Bluetooth page. Otherwise, I found them under, Settings/Location. I have my mode set to "Battery Saving". But under the triple dot should be Scanning. Here I turned off Bluetooth scanning and things seem to be doing okay thus far. Just seems like it takes a few seconds longer to connect to my devices. However, so far, no issues. I may be speaking too soon. If I find it didn't work, I will correct myself in another post.
Best Regards,
Lyndon[/QUOTE]
Thanks - I believe this has fixed the issue for me!
Brett
Late post, but just ran into the same problem with my One M8 with final Viper ROM and my newly installed Pioneer BT head unit. Turning off BT scanning on the M8 worked for me as well.
Bluetooth audio and or media check boxes can't be checked
I was able to resolve the issue on my HTC One M9 by turning WiFi scanning and Bluetooth scanning off, updating the Bluetooth checkboxes for audio and media (both of which were unchecked and wouldn't allow me to check them), and turning the scanning back on.

Bluetooth Resets Every Time It's Turned Off

So lately, every time I turn my Bluetooth on and pair it with something like my speaker or car, every time I turn it off and then back on again, all my pairings are gone. Also, I rename my phone's "Bluetooth name" from the default "Pixel XL" to my name - even this reverts back to the default.
I've tried isolating the issue by disabling Tasker, factory resetting, trying out other ROMs and kernels, with no luck. I've also tried disabling battery optimization for Bluetooth Share and Bluetooth MIDI Service and clearing out data, still no luck.
I've been Googling a ton as well, and I've found a bunch of results with people saying their Pixel's Bluetooth just turns off. I'm not having this issue, mine stays on, but when I manually turn it off and back on, all my pairings are deleted.
Has anyone else experienced this issue? If so, any potential fix would be greatly appreciated!
rickysidhu_ said:
So lately, every time I turn my Bluetooth on and pair it with something like my speaker or car, every time I turn it off and then back on again, all my pairings are gone. Also, I rename my phone's "Bluetooth name" from the default "Pixel XL" to my name - even this reverts back to the default.
I've tried isolating the issue by disabling Tasker, factory resetting, trying out other ROMs and kernels, with no luck. I've also tried disabling battery optimization for Bluetooth Share and Bluetooth MIDI Service and clearing out data, still no luck.
I've been Googling a ton as well, and I've found a bunch of results with people saying their Pixel's Bluetooth just turns off. I'm not having this issue, mine stays on, but when I manually turn it off and back on, all my pairings are deleted.
Has anyone else experienced this issue? If so, any potential fix would be greatly appreciated!
Click to expand...
Click to collapse
Your BT issues are by far exceeding the norm.
have you manipulated your phone in any way?
O DP install or another ROM by chance?
Have you performed a clean install of a factory image and setup BT first before anything could possibly tamper with settings?
parakleet said:
Your BT issues are by far exceeding the norm.
have you manipulated your phone in any way?
O DP install or another ROM by chance?
Have you performed a clean install of a factory image and setup BT first before anything could possibly tamper with settings?
Click to expand...
Click to collapse
Thanks for the reply!
The most I do in terms of 'manipulation' is use Tasker to turn Bluetooth off after a few minutes, if nothing is connected. But as mentioned in the OP, I tried disabling it and was still facing the same issue.
Never installed O DP. As for other ROMs, I've tried Pixel Dust, Screw'd, DU, RR, and PureNexus. The issue was happening on Pixel Dust, PureNexus and RR. I just flashed DU again this morning, and so far it's been behaving normally, but I'll definitely be monitoring it, to see if the issue comes back.
Edit:
Update on the issue:
I haven't had this issue happen again, not sure what caused it in the first place but I'm glad it's gone!

Can't setup internet after factory reset (stock MM H815T)

I had been playing with some settings in the hidden menu and developer options sometime before this problem began but AFAIK I returned everything back to default and the phone was working fine for a while afterwards. So I am not sure exactly why the Wifi and bluetooth stopped working. When I dragged down the notification bar to toggle the Wifi icon it just flashes like a strobe light and never turns on. If I go to toggle the slider in the Settings menu, it's either greyed out, or immediately slides back to Off. Discovered that the bluetooth also did the same thing, but Data connection still worked. Also for some reason the phone now took a solid 60 seconds to boot up when it used to take 30 or less.
I did a factory reset in case I had overlooked changing some option back to default, and when that didn't work I flashed stock ROM H815-20g-00-1023 (I'm ~ 95% sure it was running 20g to begin with but it might have been another letter instead) with LGUP. But the problem still persists --- I can't complete the LG setup process because the page for setting up the internet connection is either completely blank or if it does come up the checkbox for Wifi is greyed out... and even if the mobile data option is able to be selected the setup wizard will not let you proceed without Wifi.
Any idea what might be the problem and how to fix?
Many thanks!
I've looked every which way on Google for possible solutions but none of them match the scenario I'm describing. Is this really a problem that no one else has ever had? :-O

Disable Android Auto

I have a OnePlus 7 pro phone, with Android 10, and my car is has an XTRONS head unit running the Malaysk rom with Android 9.
Does anyone know how to disable android auto from starting every time I connect via Bluetooth? None of the posts (solutions) online work, or are even available for me to try (menus aren't there, etc.).
Help?!
how did you even get it to work via bluetooth to start with!
Great question! I didn't do anything specifically to enable it. But every time I Bluetooth connect to my head unit, it starts Android Auto on my phone. DRIVING ME NUTS.
Is this a OnePlus-specific feature?
In XTRONS the Android Auto is called MultiPlay. There is a way to disable MultiPlay. settings -- car -- Factory settings(126) -- other -- car play --Choose "no"--apply-- Exit -> reboot by holding rst hardware button for 10s.
Klussenpunt said:
In XTRONS the Android Auto is called MultiPlay. There is a way to disable MultiPlay. settings -- car -- Factory settings(126) -- other -- car play --Choose "no"--apply-- Exit -> reboot by holding rst hardware button for 10s.
Click to expand...
Click to collapse
Its still not Android auto...
Are you sure that Android Auto is starting? My Xiaomi Mi 10T only starts some kind of a welcome message "Android Auto is available in this car, do you want to connect?" when I am linked to the bluetooth...
marchnz said:
Its still not Android auto...
Click to expand...
Click to collapse
Ok, could be, but in my Xtrons headunit it's acting like Android Auto though it's called MultiPlay, and working fine. Android Auto, as an app is not visible in the app-overview. Why should that be this way?
@Klussenpunt - Thanks for the insight! I found the setting under Factory Settings, and turned it off, but my phone still does the same thing. I have taken these (extreme) measures with no luck:
Disabled the factory setting (as you pointed out)
Unpaired my phone and deleted it from the head unit
Booted my Android head unit into recovery, wiped EVERYTHING and restarted
Verified that the factory setting is still set to No/Off
Re-paired my phone
I still get Android Auto launched on my phone when I connect. UGH.
Does anyone have any other thoughts on why this keeps happening?
adidas28 said:
@Klussenpunt - Thanks for the insight! I found the setting under Factory Settings, and turned it off, but my phone still does the same thing. I have taken these (extreme) measures with no luck:
Disabled the factory setting (as you pointed out)
Unpaired my phone and deleted it from the head unit
Booted my Android head unit into recovery, wiped EVERYTHING and restarted
Verified that the factory setting is still set to No/Off
Re-paired my phone
I still get Android Auto launched on my phone when I connect. UGH.
Does anyone have any other thoughts on why this keeps happening?
Click to expand...
Click to collapse
Have you tried removing the cache and memory from the Android Auto app in your phone, after that you can disable Android Auto making contact with new Android Auto requests.
@Klussenpunt - That idea (removing cache/memory) was what got me to my final answer. It dawned on me that if I could find the "app" in my android settings (because Android Auto doesn't show as a normal app, it is hidden) then I could disable it.
Sure enough, I was able to get to the list of apps and services installed, found it, and did two things:
Removed all cache and storage
Disabled the service
Boom! Now when my phone connects via bluetooth, the Android Auto mode does not start up.
Thanks soooo much!
adidas28 said:
@Klussenpunt - That idea (removing cache/memory) was what got me to my final answer. It dawned on me that if I could find the "app" in my android settings (because Android Auto doesn't show as a normal app, it is hidden) then I could disable it.
Sure enough, I was able to get to the list of apps and services installed, found it, and did two things:
Removed all cache and storage
Disabled the service
Boom! Now when my phone connects via bluetooth, the Android Auto mode does not start up.
Thanks soooo much!
Click to expand...
Click to collapse
What was the app name? Multiplay or Android Auto?
pijes said:
What was the app name? Multiplay or Android Auto?
Click to expand...
Click to collapse
On my Samsung Note 9, the app is just listed as Android Auto in the normal apps. Depending on your device, you may have to check the option to view all system apps in order to see and disable it?

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