Develop Bugs

Bluetooth problem with TP2 and Acura HFL

I have a Sprint Touch Pro2 running stock 6.5 ROM and a 2005 Acura TL. When I got the phone a few weeks ago, I was able to pair the two without problems and it persisted reliably. I was able to shut BT off and turn it back on and the pairing would take place immediately.
Four or five days ago, though, the pairing would drop periodically, forcing me to re-pair, and now, the pairing will disappear almost immediately if I'm able to get them to pair at all. Most of the time I can't get the phone to 'see' the car.
FWIW, I use my own 4-number PIN, and when the phone sees the car, I'm able to enter that PIN and pair them.
I of course was installing a lot of stuff on the phone, although nothing that one would expect might affect the BT, so I flashed back to the stock 6.5 ROM last night to see if it helped (it didn't- same prob today).
Before I take this thing back to Sprint and smash it on their counter, anyone have any ideas about settings I might not be aware of that could affect this?
Thanks in advance for any help.
PS: I'm going to be testing my old phone (Treo 800w) on the car later to see if it still pairs to eliminate the car as the problem.

Bluetooth stops working intermittently

I just got my Sprint GN a few weeks ago, and love using the bluetooth to connect to my car audio, but every 3rd or 4th time I get into my car I notice the bluetooth doesn't pair, so I take out my phone and look and the bluetooth icon is gray (instead of blue, indicating it has connected), I toggle the bluetooth off, and then when I try to turn the bluetooth radio back on it just sits there saying "bluetooth is turning on...". Bluetooth stops working until I reboot my phone
Does anyone have any incites into this or anyone else experiencing this?

I have the same issue. It's no solution but you can enable/disable Flightmode to get Bluetooth up and running again (but quicker then reboot).
Sent from my Galaxy Nexus using Tapatalk 2

I'll give that a try (again) next time.. I am 100% certain I had tried that, though, unfortunately.

Yeah, I tried your solution again, and it just keeps saying "bluetooth is turning on..." even after I've turned *on* airplane mode.

Need some more information to be able to help you properly >_>
Stock ROM or Custom?
Rooted/Unrooted?
Or alternatively (Because it sounds like you're running a stock Galaxy Nexus...) ave you tried unpairing, and the repairing the devices?

Hi Zach,
Completely stock & unrooted (so far)
I actually did a complete factory reset a couple days ago, and the problem has yet to resurface, so I'm crossing my fingers and hoping it's gone, but the issue was intermittent so there is no way to be completely sure it won't show up again.
If it does, I'll try your suggestion, thanks

[Q] Bluetooth Won't Turn On

When I try to turn on bluetooth, the icon and text indicates that the system is trying to turn it on. However, it never actually turns on and after a few minutes reverts to indicating that BT is shut off. This problem used to occur sporadically and sometimes seemed to be cured by rebooting. However it is now at the point that it just won't turn on no matter what. I did the requisite googling and found nothing very definitive. It looks like I may have to do an exchange on the unit but I would rather not go to the effort of unrooting this unit and rooting the replacement.
Any suggestions of things to try beyond what I have indicated above?

TomSilverSpring said:
When I try to turn on bluetooth, the icon and text indicates that the system is trying to turn it on. However, it never actually turns on and after a few minutes reverts to indicating that BT is shut off. This problem used to occur sporadically and sometimes seemed to be cured by rebooting. However it is now at the point that it just won't turn on no matter what. I did the requisite googling and found nothing very definitive. It looks like I may have to do an exchange on the unit but I would rather not go to the effort of unrooting this unit and rooting the replacement.
Any suggestions of things to try beyond what I have indicated above?
Click to expand...
Click to collapse
Are you using an experimental ROM or stock rooted?

Jedi Mind Trick XI (although the problem has been growing worse and has happened across the last several JMT versions). I will give a stock rooted ICS a try.

I just tried a stock rom and the problem persisted.

I have the same problem
I have scoured the net looking for an answer, any answer, to this problem. It seems that a few people are having the same issue. But before it is ever answered, some dip$#!t always jumps in and says "I have the same problem, my phone won't connect to my car." Then the conversation goes off into other people that can't connect their bluetooth to their car or their headset- or their cat... That is not the same problem!!!
I cannot turn my bluetooth on unless I soft reset the phone. Even after I've gotten the bluetooth working, if I restart my phone the bluetooth turns off and when you try to turn it on, it says "Turning on Bluetooth..." It cycles for about a minute and a half and then goes back to "To see devices, turn on Bluetooth."
I bought this phone on Amazon for what appeared (at the time) to be a reasonable price. Since then, I believe that I have read at least one of the seller's post about bluetooth not coming on (no proof, just an educated guess). The seller probably got rid of the phone because noone could or would give an answer to this problem. Heck, it's possible that every post that I've read so far is by someone who owned this phone at one point or another. :silly:
I am sending this post to XDA because even the adminstrators on android forums say that you guys are the smartest and most responsive forum available. (Okay, they didn't say smartest- it was implied). Please help me resolve this issue.
I rooted this phone the moment that I pulled it out of the box. In other words, I don't know if the bluetooth issue is caused by the root, or if the previous owner didn't root the phone and also couldn't get the bluetooth to work. I believe that, because the phone is rooted, I should be able to remove and reinstall the app that bluetooth is based upon.
I am not a techie, the only reason I know anything about root is because I was complaining to someone about my old phone and how all of the bloatware that seems to constantly run eventually kills my battery. He told me about rooting, and it was easy enough - the rest is history. In other words, if you ask me for more information- I promise that I can give it to you. Yet, have patience with me if I ask you a question that you believe that any person that has rooted their phone should know.
I really hope that you guys can help me without bricking my phone. I truly appreciate any suggestions or thoughts on this matter.

jzxpw6;34880517I cannot turn my bluetooth on unless I soft reset the phone. [/QUOTE said:
I may have figured out what is going on, although I can't understand why it is (maybe someone more versed with processes can help me figure this out).
Using Titanium Backup, I first froze the two bluetooth items (Bluetooth Share and Bluetooth Test). Of course, that didn't remove anything, but I wanted to make sure that I could. Then I wanted to see how Bluetooth Share would react without Bluetooth Test. I unfroze Bluetooth Share.
I was then able to turn on and off Bluetooth fine. I restarted the phone and Bluetooth came in just like it did on my old phone. I guess I want to know:
1) Is the Bluetooth Test the cause of my problem?
2) Why is it there?
3) If I uninstalled it, would I experience a major hiccup?
There is still the possibility that this was simply a fluke, and very soon I will go back to the old bluetooth soft reset problem.
There is, however, one distinct difference between this phone and the last and may be the "drop out" that everyone else seems to be having. I have a Chevy Malibu with bluetooth in the stereo. On my old phone, when I started the car and got going, the word "Bluetooth" would appear on the digital display for about 10 seconds, which means that the vehicle detected and connected the bluetooth pairing. Yesterday, as I was driving in the car, every 5 minutes or so, "Bluetooth" would appear on the digital display.
This leads me to the conclusion that Bluetooth is dropping out and being picked up continuously by my vehicle. Does anyone have any thoughts on this? I'm okay with that as long as when I am talking to someone for more than 5 minutes I don't have to keep calling them back. I simply want to know what you guys think about this issue.
Click to expand...
Click to collapse

I am beginning to think that the problems I have had are related to the condition of the battery contacts.I have several third party batteries with contacts that are somewhat damaged from the pins on an external charger that came with them. I seem to experience a variety of problems when I try to use them.my original factory battery seems to work most of the time. I have several new Samsung batteries on order and will post again if they seem to solve the problem.
Sent from my SGH-T989 using Tapatalk 2

i had the same problem and it started with JMT so I switched roms countless times and the problem kept coming back. It would work for a little bit but when i turned it off it would not turn back on. I decided to go back to stock to see if the problem was still there and it was gone. Since then I have rerooted and once again flashing diff. rom every other day and bluetooth works just fine.

Well it seems no answer was found. I'm having the same issue as stated above. In my case, my bluetooth (custom ROM) keeps trying to turn on with the message "Turning On Bluetooth" until I soft reset the phone, after that it works fine.

enveous said:
Well it seems no answer was found. I'm having the same issue as stated above. In my case, my bluetooth (custom ROM) keeps trying to turn on with the message "Turning On Bluetooth" until I soft reset the phone, after that it works fine.
Click to expand...
Click to collapse
Was having bluetooth crashes for months using CM 10.1 on a T989 (no custom kernels)
Would crash anytime I tried to connect to car BT audio, or would simply not start up.
Flashed this yesterday.... and no crashes!
http://forum.xda-developers.com/showthread.php?t=2174100
For flash: Wiped dalvik/cache, flashed, fix permissions, reboot, start BT, deleted all devices, re-add.
No BT crashing of any sort for 36 hours now.

aaronchili said:
Was having bluetooth crashes for months using CM 10.1 on a T989 (no custom kernels)
Would crash anytime I tried to connect to car BT audio, or would simply not start up.
Flashed this yesterday.... and no crashes!
http://forum.xda-developers.com/showthread.php?t=2174100
For flash: Wiped dalvik/cache, flashed, fix permissions, reboot, start BT, deleted all devices, re-add.
No BT crashing of any sort for 36 hours now.
Click to expand...
Click to collapse
Hey thanks! I switched to JMT JB4 and it's not happening (much) now, I'll try to flash it and see if it fixes something :good:

Android auto disconnecting

My pixel 3 xl will connect to Android auto via USB.... Work for a few minutes then randomly disconnect. Never happened with my pixel 2.
Any suggestions??...I have tried new USB cable.... Still does same thing.
Sent from my Pixel 3 XL using Tapatalk

I have had occassional issues with Android Auto as well -
When I first got the Pixel XL I was able to connect fine via USB and even wirelessly to my Kenwood headunit - but the other day, after connecting to Android Auto, when I tried to make a phone call, Blue Tooth was not connected and I could not get it to connect. I eventualy toggled on and off Airplane Mode - and after that
it connected fine. Havn't had an issue since (knock on wood)
for your situation, have you made sure that USB Debugging i turned off? It won't work with that turned on....

Same problem here.
Never had an issue with my Pixel XL, Pixel 2 or Pixel 2 XL. Yesterday I received my new Pixel 3 XL and Android Auto keeps disconnecting. Sometimes it does last a few minutes, sometimes it does so after a few seconds. It doesn't matter if an app like Spotify or Maps is being started or if I just connect the cable. Android Auto doesn't stop on the phone but only disconnects.
As you can't deinstall Android Auto I already tried wiping cache, wiping data and deactivate. I even tried three different cables.
When I connect my work phone Pixel 2 I don't see this problem. The connection is kept as usual.
I'm getting grey hair over this.

Has anyone found a solution or workaround for this issue?

I've tried absolutely everything, even rolled back to a nano SIM after started with an eSIM.
Gonna RMA this week and cross my fingers.

I wonder if it's a hardware issue or software. Unfortunately I don't have another phone that runs pie so I can't test it. My v30 running nougat works fine. I'm kinda waiting for the next pixel update to see if it fixes it.
If you do rma your phone let us know if that fixes the issue.

Turn off adaptive battery and see if that helps you

Nope, that doesn't help. As I mentioned I have every previous Pixel and all of them work flawlessly with my head unit. All preferences are the same.
There's only one obvious difference: Android Auto is pre-installed on the 3 XL.
Unfortunately I don't know anybody with Android Auto in the car nor owning a Pixel 3 XL to check out if it's something with my head unit.
In a German forum 2 people say they have it working properly...
One of the most frustrating parts is that - for me - it sometimes it works 10 minutes. After I switched back to nano SIM yesterday on my drive home I connected, listened to great music, whatsapped my wife that it is working and boom...disconnect and from then on the known behavior started again.

Did the new rma device fix the issue?

Just send it today and because I bought from provider I've a couple of days for the new one. Used my good ol' Pixel XL today working like a charme...
I'll update when the replacement has arrived.

Experiencing same issue with Pixel 3 non-xl and 2016 Honda Accord. Android Auto disconnects anywhere from 20 minutes to just seconds after I've connected.
I've tried the following:
-Variety of brands of USB-C > A cables
-Disabling all power saving options (whole phone, specific apps)
-Setting screen to stay on when charging (solved AA disconnect issues on my LG V20)
-Re-pairing bluetooth with car
-Re-pairing AA with car
-Resetting car head unit
-Resetting phone

I've had no issues with disconnects, but I use wireless connection with Pioneer headunit.

I got my replacement today and for now the problem looks to be solved but I only sat 20 minutes in the garage messing around with it but that are 19:50 more than my last attempt with the old one.
But I already installed both Android Auto app updates that came in the last couple of days.
/me is crossing his fingers
I'll drive about one hour in the evening and hope everything stays how it is now

It's a pixel 3 software issue. Big thread in the Android Auto support forums. Google doesn't seem to be in a hurry to fix it. Said the November update should, it did not.

Anyone ever find a fix for this? I'm having the same issue, but now cannot connect at all. (Was working. Stopped the car, went into Starbucks, came out and AA won't connect.) My Pixel 2 XL works fine, but I want to sell it.

Like I said I RMAd it and it works flawlessly ever since.

Android Auto Closing Out on Pixel 3
Did anyone find a fix for this? I'm having same problem with a new Pixel 3 (not XL). It will project to the car screen/monitor temporarily, but then disconnect and close out of Android Auto. Sometimes it will automatically switch back in a few seconds. Other times I need to disconnect the USB cable from the car and reconnect to get it to project the screen again. It closes out Bluetooth and stops playing from the phone too. This seems to be an issue with the phone, as I've had this problem in multiple cars. My only solution is to run AA on the phone and not project it. Is Google doing anything about this?

Wahoodean said:
Did anyone find a fix for this? I'm having same problem with a new Pixel 3 (not XL). It will project to the car screen/monitor temporarily, but then disconnect and close out of Android Auto. Sometimes it will automatically switch back in a few seconds. Other times I need to disconnect the USB cable from the car and reconnect to get it to project the screen again. It closes out Bluetooth and stops playing from the phone too. This seems to be an issue with the phone, as I've had this problem in multiple cars. My only solution is to run AA on the phone and not project it. Is Google doing anything about this?
Click to expand...
Click to collapse
My phone connects fine to AA. It stays connected with the cable. Perhaps try a new cable to connect it. I'm on stock rooted.
Sent from my Pixel 3 XL

Soft Boot/Soft Lock When Driving

I've been having an issue since at least January. I was hoping either the Feb or March update would fix it, but it hasn't. My Pixel 2 XL has been acting strangely, but only when driving. When I drive, the device will either soft boot (states that PIN is required after restart, but opening terminal and checking uptime shows it hasn't physically booted) or soft lock (black screen that won't come on until hard booted). When it happens, my music will stop and my car's screen will go black. After a period of time, it'll ask me to reconnect the phone, either due to the device being encrypted until the PIN is entered after the soft boot or because it's simple no longer responding in the case of a soft lock. I've tried:
Removing the bluetooth connection for the car
Removing all known cars from Android Auto
Clearing cache
Uninstalling a few driving-specific apps
I was hoping maybe someone had an idea of anything to try besides a factory reset. I really hate reconfiguring my device from scratch (or even from TiBu backups).

I ended up trying multiple different kernels (Elixir and Evira) with the same results, so I broke down and did a factory reset. I reloaded apps and data from Titanium Backup. I'm no longer having the soft boot issue, but a different one instead. Now, randomly, my phone seems to disconnect from Bluetooth, audio it was playing plays through the phone speaker, and my car's display blanks out. I noticed my watch also shows that it has been disconnected from my phone. After a few moments, Android Auto returns to my car's display, but upon selecting anything (for instance, the music I had been listening to), it shows that the device is not compatible.
If I check the phone at this point, every app that had been running has been stopped. My notification bar is empty, and it usually has a few permanent notifications. The phone hasn't hard or soft booted, as it doesn't request the "PIN after restart". It just killed literally everything that was running. I have set both Android Auto and my music apps to not be battery optimized, as I assumed that might have been a problem, but with no better results. If I unplug and plug back in the USB cable, the phone operates normally. I haven't had any especially long trips to see if the issue occurs a second time. I'm lucky enough that my trips to work take 8-10 minutes.
Has anyone seen this or have any suggestions on things to try?

Well, your first post sounds a little similar to this thread: https://forum.xda-developers.com/pixel-2-xl/help/alert-using-adguard-private-dns-causes-t3896243 , Having tried dns.adguard.com private dns on my phone, that setting also survivied a factory reset. No idea about the second post. Shot in the dark.

cliff6056 said:
Well, your first post sounds a little similar to this thread: https://forum.xda-developers.com/pixel-2-xl/help/alert-using-adguard-private-dns-causes-t3896243 , Having tried dns.adguard.com private dns on my phone, that setting also survivied a factory reset. No idea about the second post. Shot in the dark.
Click to expand...
Click to collapse
It was similar, but I wasn't using Adguard. I had been using 1.1.1.1 for DNS, but when I stumbled on that post, I removed custom DNS settings without success. Thanks for the thought, though!
In all my years with Android, I haven't had such an infuriating issue. It's almost enough to make someone go to *gasp* iPhone! ... Not really.

For what it's worth, while you mention bluetooth audio and your watch disconnecting, of which I don't use either, I did have somewhat similar issues with Android Auto which it sounds like you also used as you mentioned plugging in. Sometimes AA was disconnecting, sometimes the phone not being recognised when plugged in. It's been a year so can't remember all the symptoms, but at the end of the day, it was the charging port that was malfunctioning, and which Google nicely replaced for me. This also caused adb and fastboot to be intermittent, and not see "devices" which also confirmed the charging/data port. Again, just another shot in the dark for you to consider.

Well, I went on vacation a few hundred miles away last week. On the way up, the phone freaked out repeatedly. I had my wife try to disable WiFi. Same issue. I had her try to disable Bluetooth. Same issue. Both disabled. Same issue. While at our resort, the phone freaked out a few times on the drive to breakfast (literally a 2 minute drive).
On the way back, I decided to disable Location services and revoke all Location permissions. I drove 50 miles with no problems. I had my wife enable Location and drove 30 miles. No problem. I had her tick on apps that I felt needed Location permission, one by one, every 10 miles. No problems at all. I ended up with all of the apps that I feel need Location turned on and haven't had a problem since. So something was choking on Location data, but unfortunately, I have no idea what app it was. I think it might have been Action Services, but I can't be sure. I'm just glad it's fixed, frankly.
I know this is an older post, but I wanted to get my "fix" posted, just in case someone else runs across a similar issue. At least they'd have something to try.