Bluetooth wont turn on after going back to stock from Lineage OS - OnePlus 7T Pro (Regular & McLaren) Q & A

hi,
need some help here. I was on stock OOS 10.0.5 rooted and bluetooth was working fine. I flashed lineage OS and bluetooth was still working. I decided to go back to stock and now my bluetooth wont turn on. i even tried going back to 10.0.4 and still no Bluetooth. if i flash lineage os then bluetooth works but not on stock rom
any help will be appreciated.

just update again with ota

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Just flashed new rom and bluetooth still won't work

Hi, all, it's me again.
So I flashed the new rom, installed both radioss correctly and now my only issue is that my bluetooth earpiece still won't connect with my phone.
Any ideas?
This the Rom I flashed:
http://forum.xda-developers.com/showthread.php?t=1312201
And the MR3.5 Radios

Wifi does not turn on

So today I wanted to return to stock 4.4.2, so I flashed the file via odin successfully, but after rebooting etc the wifi does not want to turn on at all? The wifi works fine on other roms, but does not turn on on stock rom and toggle remains grayed out.
It is strange because when I flashed the file the first time everything worked perfectly, but when I trei
tried it now did this?
How to fix?
Make sure the modem/ baseband is updated too. Flash the stock rom again.

Bluetooth not working on H850 with Fulmics

Hello! I need some help, I installed the newest Fulmics on my G5, amd now my bluetooth does not work. Whenver I switch it on, it immediately crashes. I really need it to work, as I use BT headsets to take calls and need it to connwct to my car as well. Please help!
Vevovaro said:
Hello! I need some help, I installed the newest Fulmics on my G5, amd now my bluetooth does not work. Whenver I switch it on, it immediately crashes. I really need it to work, as I use BT headsets to take calls and need it to connwct to my car as well. Please help!
Click to expand...
Click to collapse
Latest version of Fulmics was released at the end of December 2017... It's probably the most stable ROM on this page. If your Bluetooth is not functioning why not post there?
However it's very unlikely that it had anything to do with the ROM itself. But something else you flashed... Another mod, or perhaps you are coming from an aosp based ROM and didn't properly wipe before flashing. Or maybe it's somehow not flashing correctly with the latest (or older) version of TWRP. It maybe you coming from a newer version of stock...
Fulmics 5.5 having Bluetooth issues would have been mentioned and repaired long ago if this were a widespread issue...
The point being the ROM is likely the last thing you need to troubleshoot in this case.

Vibration stopped working suddenly Redmi Note 4

Hi guys
My mido vibration stopped working a week back abruptly. I didn't flash anything new back then.
Tried diagnosing it with change of vibration motor (with a technician) as well but the new one didn't work either. He did attempt a temporary replacement of its underlying chip as well but again it didn't resolve the issue.
Attempted clean reflash RR. Then clean reflashed Havoc 2.9 build as well.
After reflash in both the builds, didn't install Magisk (just to be sure some version could have been conflicting with the motor may be)...No solution
Attempted firmware upgrade to notably stable versions 10.2.3 and then downgraded to 9.6.3 as well. No solution still....
Could anyone advise what I could attempt next..?
Current environment: Havoc 2.9
No magisk installed as of now.
Nothing works.
Magisk 20.1 was installed but removed now... Still doesn't work...
Please help.

Phone runs very hot in official lineage os 17.1

So, I install lineage os every one's and a while to test it and see if it is ok for me, I always revert to stock but that's not the point, one problem that I have is that the phone gets VERY HOT. One day I installed lineage and when I finished the setup process, the phone was so hot I couldn't hold it comfortably, while when I finish the setup on the stock rom the phone is just warm. Is there any way to make the phone run cooler? Is the phone getting hot because the software is too much for the processor? . I haven't installed lineage os for about two months now so I may try it again at some point. Is anyone else having the same problem?
No that's not normal, it's not supposed to heat up much.
Maybe you you didnt flash it properly, it's recommended to install it like this.
forum.xda-developers.com/lg-g5/development/rom-unofficial-lineageos-17-1-g5-t4039807/post81972297#post81972297
Also check before flashing if your camera works on the stock lg rom,
If it doesnt you have to downgrade to stock marshmellow, and then upgrade back to oreo to fix it.
dylank said:
No that's not normal, it's not supposed to heat up much.
Maybe you you didnt flash it properly, it's recommended to install it like this.
forum.xda-developers.com/lg-g5/development/rom-unofficial-lineageos-17-1-g5-t4039807/post81972297#post81972297
Also check before flashing if your camera works on the stock lg rom,
If it doesnt you have to downgrade to stock marshmellow, and then upgrade back to oreo to fix it.
Click to expand...
Click to collapse
Thanks for answering,
This is how I install it. The camera on stock oreo is working normally so I don't need to install stock Marshmallow. So, I firstly unlock the bootloader and then install lineage os 15.1 with no gapps. After that I upgrade to lineage os 16.1 again with no gapps. Now I uninstall lineage 16.1 and I am doing a clean install of official lineage os 17.1 WITH gapps. The reason I do this is because if I install lineage 17.1 instantly the cameras and sensors don't work. Unfortunately I don't remember the temperatures that I got but I remember that one day I woke up with 20 C and after 15 minutes of some web browsing and social media it went up to 40 C (there's a slight chance that I'm wrong since I don't remember the exact temperatures as I said)
Strange i didn't have those problems when flashing properly,
Do you also use nano/pico opengapps?
You could also give crDroid Android 5.12, a try maybe that will work well, but it's android 9 instead of 10.
I think you need to flash it in the same way as lineage.
dylank said:
Strange i didn't have those problems when flashing properly,
Do you also use nano/pico opengapps?
You could also give crDroid Android 5.12, a try maybe that will work well, but it's android 9 instead of 10.
I think you need to flash it in the same way as lineage.
Click to expand...
Click to collapse
I originally used nano opengapps but I started using stock because I use most of the gapps anyway but I will try crdroid 5.12 at some point to see what happens.

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