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As right now there is a transition to Nougat on many phones (AOSP 7.1 and CM 14.1 are released, many custom ROMs are released on Nougat platform...) be aware that there is confirmed bug in Nougat BT stack: no connection / disconnections even if HU is paired with your phone.
While it is not only MTC* specific (http://bgr.com/2016/09/29/iphone-7-bluetooth-problem-bmw-ford-kia/) I can confirm it is present (I installed CM 14.1 e.g. Nougat based ROM and BT connection is not working - it pairs, it connects and disconnects in a second saying "no phone").
Existing fixes and workarounds posted here on this forum (like changing init.qcom.bt.sh file etc.) are useless.
Google confirmed bug and it is expected that fix be with next AOSP release (expected in early December) but until we see it we cannot be sure it will fix connection issues with our HUs.
Anyhow, if anyone whish to try and experiment (I dont, I wait for fix by Google first) you may try what was used to fix very similar issues on MM a year ago: changing setprop ro.bluetooth.hfp.ver 1.7 to ver 1.6 (pay attention that Nougat does not have that proprerty set at all, so the file init.qcom.bt.sh is not at same location nor the same content in N as it was on MM - but you may try with build.prop if you like to experiment).
Search the net by keywords I hinted above for links and post your results if you experiment. It may be helpful for others.
EDIT: Issue is fixed in 7.1.1 build (and CM 14.1 nightly also)!
I am suffering from the same annoying bug.
Hope that bug will be solved ASAP in the next AOSP.
Same boat.
Sent from my A0001 using XDA-Developers mobile app
me too
for me last cm14.1 version (01/12/16) from cyanogenmod site is fixed and BT is works perfect (oneplus 3)
Fixed
Latest 7.1.1 fixed bug (work also with latest CM 14.1 nightly build)
Yestarday i updated my Nexus 6p to Android 7.1.1 OTA.
After that i am having problem with my Bluetooth Car stereo Connectivity, it's connect for a second and then disconnect, It's seems to be only with my android 4.4 RK3188 car head unit, i tried a several other Bluetooth devices and i success to connect, don't know why only with my car it's not working although it works until yesterday before the 7.1.1 OTA update...
fectivi said:
Yestarday i updated my Nexus 6p to Android 7.1.1 OTA.
After that i am having problem with my Bluetooth Car stereo Connectivity, it's connect for a second and then disconnect, It's seems to be only with my android 4.4 RK3188 car head unit, i tried a several other Bluetooth devices and i success to connect, don't know why only with my car it's not working although it works until yesterday before the 7.1.1 OTA update...
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Click to collapse
It looks like Nexus specific issue. It may be problem with release of 7.1.1 they used for OTA.
For instance, CyanogenMod nightly fixed exactky that issue for me. Still now WiFi Hotspot is not working, but CM just fixed that bug and I hope it will be fine with next nightly. That is why I like CM! they listen, they recognise and they fix a bug in a single day. Google is on opposite side. Exactly why I don't use Nexus and I install CM based ROM first day I get new phone
Title is a little mis-leading MR P.K..
Hate to rain on your parade, but as you have been so quick to jump into other peoples threads and hand out the B.S..
You start a thread then tell people to go and do thier own research and attempt a fix you yourself have not verified will work.. tut, tut.. is this not the mark of a good software developer..
Anyway.. on the new Huawei P9 and have stayed on A.6 as for now everything is working fine for me on the big M's Rom..
Love the way you bag Google development.. of course CM is going to Cherry pick the fixs as they are a small nimble team focused on fixing and pulling apart what has been released..
They haven't released Forward versions of Android under thier own steam as yet as they just follow what has been put out..
You still got to take your hat off to Google for going toe to toe with Apple and windows to bring to the massss what we take for granted.. and might I add.. putting up billions to grab the Motorola patients so that Android continues to be free..
Looking forward to your Bluetooth stack fix's P.K so I can upgrade to A.7 ?
Sent from my EVA-L09 using Tapatalk
PK..
Light Reading off topic.
​Cyanogen to shut down services by year's end
https://www.cnet.com/news/cyanogen-to-shut-down-services-by-years-end/
Sent from my EVA-L09 using Tapatalk
Issue fixed for Nexus 6P
Hey guys,
Just a note for the ones that have Nexus 6P (no rooted) and guess Pixels phones that the BT issues are fixed when you upgrade to Nougat 7.1.2
If you have a Nexus phone (like me) just enroll to the Beta program and upgrade to 7.1.2 Just tested and BT issues with my HU is fixed.
Cheers!!!!
how do you enroll to the Beta program? Never mind. Figured it out (https://www.google.com/android/beta) and up grading my Nexus non-rooted 6P to 7.1.2 (beta program enrolled pushed OTA 7.1.2) fixed the bluetooth issue with my phone (media worked voice calls would keep dropping the bluetooth connection) to my headunit (pumpkin RK3066 MTCB-JY-v2.86 running Malaysk ROM RK3066 800X480 version 44)
un-pairing and re paring + reset car's Bluetooth - didn't solved it...
I remember that 6.1 had this problem too until monthly security fix it...
Any suggestions to fix this?
Sorry, no suggestions to fix it. Just confirming that I have car BT connectivity issues as well since 7.1.1.
I can connect the device, but the BT connection keeps dropping and coming back every few seconds.
Thanks for confirming this, tried the pixel 7.1 rom back in October and had the same issue, been waiting to hear if they fixed this on the official 5x rom but looks like they haven't, so sticking with 7.0 until they do.
I have no issues connecting, but I am using the PN 7.1.1 rom, not stock.
I'm on PureNexus, too, and had no problems, neither on 7.0 nor 7.1.
Yep here. Problem is with stock rom. Cm and purenexus works just fine. I wrote to google and they were suggesting 1:1 support which I can't use because of my country.
Sent from my Nexus 5X using Tapatalk
Also having this BT carkit connect issue since 7.1.1 update. It connects/disconnects every few seconds. I am on stock ROM.
Best shot is to wait for google to hopefully fix this, which I highly doubt.
I currently have a 7.1.1 rom running on my SGH-M919 (w/TWRP), but I am curious which 7.x.x rom you guys think is (subjectively) the best.
I know 7.x is new and there will be more development in the future, but as of now - most liked/stable/etc?
Nik1703 said:
I currently have a 7.1.1 rom running on my SGH-M919 (w/TWRP), but I am curious which 7.x.x rom you guys think is (subjectively) the best.
I know 7.x is new and there will be more development in the future, but as of now - most liked/stable/etc?
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Click to collapse
I am very happy with the SlimRom 7.1.1. I had problems with the RR Nougat based and went right back to Slim. The Slim downside: video camera and MMS do not work. Also we have no developer.
edit: I have no use for the video and MMS, so the SlimRom is my favorite. I would recommend it.
Im using lineage OS jftlexx and has a bunch of problems 7.1.2, using baseband m919nuvufok3....
First and worst ongoing problem is network drop, modem drop due to kernel issues on 3.4.112 kernel.
other are minor, headphone jack routes phone call audio but cannot hear the party on the line. reinitiating the call fixes it,
bluetooth reconnects every 1 hour... by itself...
no audioFX or Xposed Modules
Rellik2323 said:
Im using lineage OS jftlexx and has a bunch of problems 7.1.2, using baseband m919nuvufok3....
First and worst ongoing problem is network drop, modem drop due to kernel issues on 3.4.112 kernel.
other are minor, headphone jack routes phone call audio but cannot hear the party on the line. reinitiating the call fixes it,
bluetooth reconnects every 1 hour... by itself...
no audioFX or Xposed Modules
Click to expand...
Click to collapse
Did you try in any other baseband? Because in the latest fqa1 baseband the SIM card and some sensors do not work in the LineageOS..
I noticed a couple days ago I was getting really slow hotspot speeds. So for the last day or so, I've been testing ROMs and flashing ROMs.
Roms I have tested are:
Omni ROM 8.1 Oreo - hotspot does not even work
Nitrogen run 8.1 Oreo - hotspot does not even work
Freedom os 8.0 Oreo - very slow speed 1-3Mbps
Freedom os last nougat version - very slow speed 1-3Mbps
Stock oxygen os 8.0 Oreo stable - very slow speed 1-3Mbps
Beta 30 oxygen os Oreo - very slow speed 1-3Mbps
Beta 24 nougat oxygen os - hotspot works normal and speeds are normal
Given all these roms and flashing I've done it boils down to this in short...... If I use the beta 24 nougat, it works fine, of I use last stable nougat or above it either doesn't work or works very very very slow.
Everything phone side works fine, speeds are great. Any of the os above, be it nougat, 8.0, or 8.1 works fine without issues, no app closes nothing, but hotspot is just utterly painfully slow.
Carrier is T-Mobile. This isn't a carrier issue or hardware issue otherwise it would do the same on all roms and it does work on the one nougat oxygen os.
So my question is, what changed from the one nougat, to the other nougat and above? APN? Modem? Both?
I'm at a loss as to what is going on.
Any ideas I can try?
easyrider77 said:
I noticed a couple days ago I was getting really slow hotspot speeds. So for the last day or so, I've been testing ROMs and flashing ROMs.
Roms I have tested are:
Omni ROM 8.1 Oreo - hotspot does not even work
Nitrogen run 8.1 Oreo - hotspot does not even work
Freedom os 8.0 Oreo - very slow speed 1-3Mbps
Freedom os last nougat version - very slow speed 1-3Mbps
Stock oxygen os 8.0 Oreo stable - very slow speed 1-3Mbps
Beta 30 oxygen os Oreo - very slow speed 1-3Mbps
Beta 24 nougat oxygen os - hotspot works normal and speeds are normal
Given all these roms and flashing I've done it boils down to this in short...... If I use the beta 24 nougat, it works fine, of I use last stable nougat or above it either doesn't work or works very very very slow.
Everything phone side works fine, speeds are great. Any of the os above, be it nougat, 8.0, or 8.1 works fine without issues, no app closes nothing, but hotspot is just utterly painfully slow.
Carrier is T-Mobile. This isn't a carrier issue or hardware issue otherwise it would do the same on all roms and it does work on the one nougat oxygen os.
So my question is, what changed from the one nougat, to the other nougat and above? APN? Modem? Both?
I'm at a loss as to what is going on.
Any ideas I can try?
Click to expand...
Click to collapse
Idk mate, but I'm from the UK and I have the exact fkin problem for the past year. I haven't found any explanation or fix for this. I'm on Three UK. My only theory was that maybe my carrier is intentionally slowly down my speed, indirectly telling me that I have to buy hotspot allowance.
Nope I just did a test. I reverted back to a beta of nougat, beta 24. When I test that I get around 24Mbps, when I jump to the last nougat update, or anything Oreo, and this is with any rom even stock, I get crap speeds. I am SO pissed right now, because this same issue in 2016 plagued the 3t, and now it plagues the 3 as well as the 5, don't believe me go check 1+ forums it's littered with the same exact issue. So.... This issue was back in 2016, and they still can't fix it???!!!??? WTH.
Attached are pics..... Anything you see with high speeds is that nougat stock room. Anything slow speeds is Oreo or the last stock nougat. Any rom be it stock or custom that is like nougat 7.1.2 and above on up to anything Oreo, results in the same exact thing
I've tested this for almost 2 days with the exact same result so considering I have a strong signal and it works on that stock 7.1.1 nougat oxygen os, tells me they either screwed something up, forgot something, or changed something which results in slow speeds and hotspot speeds.
Un freeking belivable they still have not fixed this after 2 damn years.
I might also add that the screens of the laptop are hotspot of corse, and the ones that show different are from the speedtest app on my phone and screenshots of that (the ones that show a dial)
I was wondering if am only facing the bad call reception over jio network on very Treble-roms .The reciver is unable to hear me , he said a lote of noice is there , it happens only for Treble-roms .
JIT05 said:
I was wondering if am only facing the bad call reception over jio network on very Treble-roms .The reciver is unable to hear me , he said a lote of noice is there , it happens only for Treble-roms .
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Click to collapse
I have the same exact issue.
Which Roms work for you?
I am currently using Jaguar pie - non-treble rom along with boot image is from xtended pie- non-treble rom as it because it supports spectrum profiles and thus pubg is better with gaming profile set on spectrum.
Never faced any such issues with Treble or Non Treble ROMs. Yes, there are specific ROMs or a single version of some ROM may end up having any bug or issues but it would be unfair to term entire TREE as problematic !!
Couple of weeks ago, I was with Pixel Exp 10, and that particular release was having this said issue. I have just updated to the latest release of PE10, so will check in next few weeks if the issue is still there or not. But certainly I can confirm, tried many Treble Oreo & Pie, I personally never faced any issues in those regarding Voice call issues.