Android M 6.0 and now Bluetooth Low Energy has stopped connecting - G3 Q&A, Help & Troubleshooting

Hi,
I have an LG G3 D852 which I just upgraded OTA last week.
Initially the BLE was disconnecting and reconnecting frequently and now it will not connect at all.
Has anyone heard of Marshmallow frying the BLE portion of the Bluetooth hardware?
In settings I am seeing "Unavailable" beside Bluetooth Address, but nothing is currently connected.
Regular Bluetooth is connecting to my wireless speakers without issue, but my Fitbit and Withings watch will not connect anymore.
I performed a hard reset (Volume down and Power buttons) and this did not fix the problem. I am forced to use my old Nexus 4 to connect to my devices.
Any thoughts?

Related

Getting Bluetooth Audio to autoconnect.

I have used my SGS3 for a while now with the built-in bluetooth phone connection in my car. The first time I used it I had to go through the pairing process, ever since then it automatically connects as soon as I turn on the car. I don't have to touch anything, as long as I have bluetooth turned on it connects.
So, I added a Logitech bluetooth audio receiver to the car http://www.amazon.com/Logitech-Wireless-Speaker-Bluetooth-980-000540/dp/B004VM1T5S
This unit paired with the phone fine, and remembers the pairing. Only problem is every time I turn it on, I have to go to the bluetooth menu on the phone and tap the entry for the logitech adapter to get it to connect. It's a few more steps that I'd like to make this work.
Can anyone suggest a way to my phone to auto connect this pairing?
I know it's uncool to bump your own post, but really........nobody?
Really unsure but try deleting the device from your phone reboot and pair again. All I can think of.
Transmitted with a portable device using Xparent Blue Tapatalk 2
I have the same problem and I have not been able to solve the problem. I am using a Blackberry Bluetooth Stereo Gateway. It would auto connect just fin to my Evo 4G. It will not auto connect on the SIII. If I look at the Bluetooth settings I will see it briefly show Connecting before dropping off when I power up the gateway. It has been this way since I got the SIII. I have only tried the stock ROMs. I am thinking about trying an AOSP ROM to see if it makes a difference.

Bluetooth sync

Anyone having issues with their bluetooth not auto syncing with their automobile? Im coming from a galaxy nexus and it would always sync with the car as soon as i turn it on.
Lsantana954 said:
Anyone having issues with their bluetooth not auto syncing with their automobile? Im coming from a galaxy nexus and it would always sync with the car as soon as i turn it on.
Click to expand...
Click to collapse
None here. I do get random drops in Pandora while driving.
this is getting really frustrating, especially when my old galaxy nexus would auto connect with no issues. I've cleared the cars phone book and the previously paired phones and i unpaired and paired the phone several times and still wouldn't auto connect after its initial pairing.
Lsantana954 said:
this is getting really frustrating, especially when my old galaxy nexus would auto connect with no issues. I've cleared the cars phone book and the previously paired phones and i unpaired and paired the phone several times and still wouldn't auto connect after its initial pairing.
Click to expand...
Click to collapse
I have the exact same issue. I too am coming from a Galaxy Nexus which would auto connect to a GOgroove FlexSMART X2 Mini in my car. Unfortunately I am unable to get my Verizon LG G3 to auto-connect. I am able to manually toggle it to connect. What is weird is that it will auto connect to a Logitech Mini Boombox that is also paired to the phone.
well it seems to be working now. Took care of some errands this morning and so far its been auto syncing every time i get back in the car. I didn't do anything to the phone. The battery did die over night and i fully charged it this morning while it was off prior to me leaving.
spoke to soon! after a while the phone stopped auto syncing. Seems the fix is the restart the phone and then all is well, i cycle the car off and on several times after restarting the phone and it would auto sync with no problems. I hope they fix this issue with the next software upgrade
Did some more troubleshooting and discovered something interesting. On certain paired bluetooth devices (e.g. Logitech Mini Boombox) it doesn't matter if the device is powered on before the phone's bluetooth is turned on, the device will auto-connect to the phone. On the other hand, other paired bluetooth devices (e.g. GOgroove FlexSMART X2 Mini), if the device is on before the phone's bluetooth is on it will not auto-connect but if the phone's bluetooth is on before the device is powered on they will auto-connect.
Mine is auto syncing with my Merc (Comand Online) but the G3 keeps having a popup message saying "headset disconnected" every 5 seconds...
But I can make extensive calls and everything is synced (call history, sms, contacts).
Any idea how to get rid of the annoying popup ?
Ok, found out by myself
Apparently the G3 tried to connect to bluetooth audio streaming mode... It's off by default on my car kit. I disabled the latter in the G3 bluetooth parameters for my car kit and now I don't have this annoying popup anymore !

BT problem with AppRadio

Hi,
I have some problems with the following combination:
LG G4 as Phone connected to my AppRadio (BT)
Pioneer AppRadio3
Android Box with 4.4.1 which is connected by HDMI to mirror the Android screen to my AppRadio. (Touch screen by ARUR with BT)
If I connect my G4 by BT to my AppRadio, it´s not possible to connect my Android Box for working with ARUR to get touch screen working.
If I kill the connection with my G4 it works as expected and I´m able to use the touch screen on my AppRadio.
I switched from HTC One M7(Android 5.0.2) to my new G4 (5.1) and I had no problem to connect my M7 and the Android box with my AppRadio to get both working, so this issue seems to be phone related.
Do you guys have any idea how to fix this issue?
It´s not really usable as is now...
No ideas at all???

Bluetooth Not Connecting - Worked Previously

OK, so I got everything working on my unit back in November. Bluetooth worked fine and connected with my phone and OBD device (OBDLink LX).
Suddenly within the last couple of weeks, it's stopped connecting. I have tried rebooting the radio, unplugging/replugging my bluetooth OBD, unpairing the phone, repairing, etc... Nothing seems to work for more than a few minutes. Sometimes it will work for one trip, but then the next trip it's back to REFUSING to connect to either bluetooth device. Remember - BOTH worked before, and I didn't change anything.
Since it's happening with both my Phone and my OBD device, it appears like it is a fault in the stereo. I really don't want to do a full factory reset as that would entail many hours sitting in the car wasting gas idling while I reinstall/reconfigure EVERYTHING only to not even be sure it won't do this again.
Anybody have any tips on something I can do to fix this? There does not appear to be any kind of "unpair" option in the bluetooth settings on the radio itself. I'm wondering if there's a way I can manually reset just all of the bluetooth settings - blow them away and start over without resetting the whole device.
This is a pretty big deal - one of the #1 reasons I bought this device was for OBD datalogging. If that feature does not work, I will rip it out of my dashboard and ebay it. PERIOD...
Adcice?
Nobody?
I tried changing the bluetooth device name, changing the PIN and re-pairing my devices. They work intermittently, but 90% of the time won't connect, or if they do, they won't stay connected.
This is turning my radio into an expensive piece of garbage...
lotherius said:
I tried changing the bluetooth device name, changing the PIN and re-pairing my devices. They work intermittently, but 90% of the time won't connect, or if they do, they won't stay connected.
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Click to collapse
Try keeping wifi on all the time (even if not actually connected to any network).
themissionimpossible said:
Try keeping wifi on all the time (even if not actually connected to any network).
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Click to collapse
I do have Wifi on all the time. I have an LTE Hotspot I keep in the glovebox of my car that powers up as soon as the car powers on. So there's 100% wifi coverage for my stereo no matter where I'm at.
I can randomly get it to connect, but it won't stay connected. When I'm in the bluetooth menu, the devices will actually disappear from the paired devices list. Both paired and available will go blank just suddenly as the devices drop off. Then they'll reappear on their own. So it appears to be the bluetooth stack is crashing - but I'm not sure why.
It is a KLD RK3188 unit. Running latest MCU (came preloaded, just bought it in November - I haven't put a new MCU) and recent firmware, which is a stock firmware, not MalaySK (MalaySK doesn't support the digital display below the screen on my unit)...
At this point this unit is trash if I can't keep Bluetooth working more than 10% of the time.
Sent from my OnePlus One.
lotherius said:
I can't keep Bluetooth working more than 10% of the time.
Click to expand...
Click to collapse
Some smartphones might show an incompatibility with the radio's BT stack. To be sure try with another smartphone.
I would see if it pairs reliably with just one device at a time. My phone has issues connecting with the HU if I first connect my BT headset to the phone but works fine if I do it after. Also the construction of these seems to be sub-par and it could be the bt device or antenna in yours was not connectec/mounted well and you hit a pothole and now its not attached/broken/loose. It may be worth opening and looking inside for something that broke off or is loose. Finally, I have had (well still have) my factory settings change randomly and have to go in and reset. There are settings in the for BT module and it may be worth looking to see if yours are correct.
I also have problems with mine but I'm running Marshmallow in my OPO. As soon as i go back to Lollipop (CM 12.1) it works again.
stormlabs said:
I also have problems with mine but I'm running Marshmallow in my OPO. As soon as i go back to Lollipop (CM 12.1) it works again.
Click to expand...
Click to collapse
Turns out I think it's the OPO. Mine has issues even with 12.1. I think it's based on Modem version not firmware version. Your modem may have been changed when you went back to 12.1.
For me changing modem versions is something I really want to avoid. I hunted forever for a modem version that didn't constantly drop WiFi and LTE, finally found one, and I think that's when the Bluetooth issues started. Every time I flash a modem to the OPO it becomes a nightmare. That phone really does not want you messing with the firmware which is not what I expected when I bought it.
For now I'm back on my old Nexus 5. No problems. I may just sell the OPO and never stray from Nexus again.
Sent from my Nexus 7 using Tapatalk
Hmmm.
My OPO doesn't connect to the headset but my chinese BT OBD dongle connects fine and works.
I have the same problem with my unit but phone working.Only obd2 adapter some times not connecting.Have you find any solution?
I have a similar issue with the Pixel XL.
Previous I was on a Nexus 5 Bluetooth worked perfectly every time without fail, could make calls, listen to music and sync address book no issue.
Now since moving to the Pixel XL I have an issue connecting to the head unit. The head unit shows as a connected device, but then flashes green then grey, green, grey showing connected, disconnected... I can still stream music from my phone over Bluetooth, but voice is not achievable.
Like suggested it's likely to be the BT stack in the handset rather than the head unit as works fine with Nexus 5. Highly frustrating and likely no fix unless it can be patched by software update
I'm also having the same problem as you noodlemctwoodle on a Nexus 6P with 7.1 developer preview.
I've un-enrolled from the beta program this morning, waiting for the ota to come down, as soon as it does will re-test and let you know if it's working, as I suspect it is a problem with the bluetooth stack in 7.1
MTCD MLT (Xtrons TD618AS) Bluetooth and OBD Reader
I have had issues with the Bluetooth on the MTCD MLT V1.76_1 (Xtrons TD618AS).
I found a work around which allows me to use the OBD reader successfully. I downloaded an Android Bluetooth App and toggled off the Bluetooth. Once the Bluetooth was toggled off I was able to access the OBD reader by using the "Piston" OBD app. I tapped on the car picture and waited for the app to think about things. Once the app finished thinking I was able to start capturing the live OBD data by pressing the play picture. I am only speculating, but I feel as though perhaps the firmware engineers goofed. This is even the OBD reader that Xtrons promoted as compatible with the TD618AS stereo I bought with it at the same time. Not to mention that I continually lose FM radio even though the stereo was professionally installed and no wires were cut. I was very excited, and now only depressed.
mr.hackerly said:
I have had issues with the Bluetooth on the MTCD MLT V1.76_1 (Xtrons TD618AS).
I found a work around which allows me to use the OBD reader successfully. I downloaded an Android Bluetooth App and toggled off the Bluetooth.
Click to expand...
Click to collapse
Which Bluetooth app did you download?

Bluetooth pairing problems

Hello, I am getting weird problem when using bluetooth devices with my HTC 10 (stock rom)
I bought a bluetooth device with aux-in for my car radio.. That way I only enable BT on my phone and devices connect without problems.
But I also have a small Bluetooth speaker I use when I renovate the apartment (JBL GO).
The problem is when I paired car bluetooth device so it can connect automatically and after that also connected bluetooth speaker this one does not want to connect. If I unpair car bluetooth device, the speaker connect normally.. also if speaker connect and I come down to my car and try to pair to car bluetooth device, it doesnt want to connect/pair... Again if I remove BT speaker from paired devices, car bluetooth device connect normally...
Why is that, anyone knows a solution? Why can I have only one BT device paired with my phone?
Thank you for answers
i have this problem too.
Had this problem myself.
Updated to the latest firmware, rom and kernel.
Currently using cleanslate.
Turn on the BT device, make sure no other BT devices are in the near radius which may confuse it, no wireless devices (I know hard in this day and age)
Turn on BT on your phone, hold it up clearly (not laying down) close all apps, and open the Bluetooth menu.
Click the Bluetooth device to make sure it's ready to pair. Then scan on the phone.
Should start picking it up.
Repeating this and turning the BT device on and off periodically, allowing for several attempts at a time before switching off..
Even really it'll work, perhaps a different rom or kernel combination may help..
I have had this problem, once connected it'll always work and work well. It's odd
Same issue somewhat..I really want to keep this device...i dooooont want to go back to the s7. But on the S7, i could have my Gear S2, Sync and LG Tone all paired at the same time...If i got a call they would all ring and i could answer on whatever device...now if i have the LG on, sync wont find the device. or the phone wont allow for sync to use the Phone, because the S2 is using that feature...what gives? just me?
CrazyCypher said:
Hello, I am getting weird problem when using bluetooth devices with my HTC 10 (stock rom)
I bought a bluetooth device with aux-in for my car radio.. That way I only enable BT on my phone and devices connect without problems.
But I also have a small Bluetooth speaker I use when I renovate the apartment (JBL GO).
The problem is when I paired car bluetooth device so it can connect automatically and after that also connected bluetooth speaker this one does not want to connect. If I unpair car bluetooth device, the speaker connect normally.. also if speaker connect and I come down to my car and try to pair to car bluetooth device, it doesnt want to connect/pair... Again if I remove BT speaker from paired devices, car bluetooth device connect normally...
Why is that, anyone knows a solution? Why can I have only one BT device paired with my phone?
Thank you for answers
Click to expand...
Click to collapse
Do you have another device to try it with? i have had a similar problem, but its just my terrible bluetooth rockford deck causing me grief, and an ebay pill. But it did it with a lg g3 and xperia phone as well. so i chalked it to that
Seems like HTC only allows one bluetooth profile at a time. Like it will only allow one device to use the phone profile or one device use the media profile.
I have to turn off my tone for Sync to connect. Sucks.
I've had this problem since purchasing the HTC 10 about a month ago. My Bluetooth earphones work without issue, but I've been unable to connect to my car or portable speakers (pairs but never connects).
After reading this thread, I unpaired the earphones, cleared all devices, and I was finally able to connect to my portable speaker. So glad I found this topic.
Still, I'm hoping for a fix. I don't want to bother with pairing and unpairing just to connect to a different Bluetooth device.
Similar problem
Hello !
I am having a similar issue!
I have been trying to register and pair my phone with my car's Bluetooth.
Every time I try to pair with my car an error message pops up saying "couldn't pair with Hands Free System because of an incorrect PIN or passkey" except it never even prompted me to enter the passkey...
Things I have already tried:
Resetting network settings
rebooting phone
Factory reset phone
Also , I do not have any other devices paired with my phone.
Any suggestions??
AmandaLS1991 said:
Hello !
I am having a similar issue!
I have been trying to register and pair my phone with my car's Bluetooth.
Every time I try to pair with my car an error message pops up saying "couldn't pair with Hands Free System because of an incorrect PIN or passkey" except it never even prompted me to enter the passkey...
Things I have already tried:
Resetting network settings
rebooting phone
Factory reset phone
Also , I do not have any other devices paired with my phone.
Any suggestions??
Click to expand...
Click to collapse
Had exactly the same problem htc10 would not pair with car bt. changed my passkey on car to 0000 still a valid code and phone paired straight away It was driving me insane trying to make it work. Worth a punt if you can change passkey
hamish707 said:
Had exactly the same problem htc10 would not pair with car bt. changed my passkey on car to 0000 still a valid code and phone paired straight away It was driving me insane trying to make it work. Worth a punt if you can change passkey
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Click to collapse
Thank you, I will give that a shot!

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