Wifi and Bluetooth shows as disabled? - Nexus 9 Q&A, Help & Troubleshooting

Tried doing a factory reset and wiping cache from recovery. Tablet functions perfectly fine after reset except for any attempt to turn on wifi or bluetooth just leaves it spinning still it goes back to off. On the settings screen it just has disabled under both.

InspecterJones said:
Tablet functions perfectly fine (after reset) except for any attempt to turn on wifi or bluetooth just leaves it spinning still it goes back to off. On the settings screen it just has disabled under both.
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I am having the exact same problem but without the reset. One day WiFi and bluetooth just turned off without any changes to the software. I just couldn't turn the Nexus on after a couple of days on the charger, screen was black. I switched it on by long pressing the power button, it booted and there was no more WiFi or bluetooth.
I tried different ROMS (Slim, Lineage) and also went back to stock with factory image, still cannot turn on WiFi or bluetooth.
Did you find a solution or is it a hardware fault?
Best, Bernhard

InspecterJones said:
Tried doing a factory reset and wiping cache from recovery. Tablet functions perfectly fine after reset except for any attempt to turn on wifi or bluetooth just leaves it spinning still it goes back to off. On the settings screen it just has disabled under both.
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I'd reflash the ROM. Usually, this happens if the kernel doesn't match the ROM or if you dirty flash ROMs

Related

[Q] GPS Not working (Can't connect to satelites)

Hi All,
I have a problem with my Hero, and i am hoping some one could help, here goes:
I had my hero for about 6 month working perfectly including GPS with Waze.
Yestderday i decided to try out some new roms, i backed up my stock (with root) firmware 1.5 with nandroid. i installed Villainrom V12 everything worked exept Waze, it kept giving me messeges that there is no satelite reception (which is not possible cause i always used to get reception there). So i went back and restored my backup and now it's the same, no satelite reception . . .
Did i some how fry my GPS component ? or is it fixable.
Thanks in Advance
Can't really help you with a fix but last sunday I didn't get a sat fix at home, drive 50 miles to London, still no fix, tried turning the phone on and off, gps on and off still wouldn't get a fix all the way there. Stayed in London for three hours, turned gps on when I left and got a instant fix! Been working fine ever since!
I've had very similar problems with my GPS. It worked great on stock, but when I installed a custom ROM, I started having intermittent issues. I'm using VillainROM 12 and the most recent radio, and sometimes I get a fix right away, and other times I don't get a fix at all. When I can't get a fix, rebooting the phone almost always gets it working again. I had the same problem with an older radio and VillainROM 10. I do remember seeing a tentative workaround somewhere in these forums, but am having trouble finding it again...
I spoke to soon, I tried it with gps status last night, wouldn't get a lock, drove 6 miles, still no lock, left in on for an hour, still no lock. Did a hard reset last night, got an near instant lock with gps status. I've tried it about 4 times today, got a lock everytime. I'll test it all week and see what happens.
Well i had kept my stock radio , maybe i should try updating that and see what happens.
@marky33 When you say hard reset what do you mean ? did you take the battery out ?
Hard reset is just shut down the phone and turn it on again (rather than soft - i.e. reboot using buttons). This can fix GPS issues but in most recent ROM's it should be fixed by default. It can also be a radio issue - get the latest and you shouldn't have a problem.
Ive had this problem with villainrom 12, the fix used to be to switch on the gps before a reboot, and then after rebooting ( with the GPS switched on) it would work and find satellites.
I havnt had this problem since switching to Radio 63.18.55.06PU_6.35.15.14
Radio I used which had this problem with villainrom was 63.18.55.06JU_6.35.09.26
btdag said:
Hard reset is just shut down the phone and turn it on again (rather than soft - i.e. reboot using buttons). This can fix GPS issues but in most recent ROM's it should be fixed by default. It can also be a radio issue - get the latest and you shouldn't have a problem.
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Haven't you got hard and soft the wrong way round?
solarporing said:
Well i had kept my stock radio , maybe i should try updating that and see what happens.
@marky33 When you say hard reset what do you mean ? did you take the battery out ?
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Like this below, wipes all user data
Power the unit off (removing the battery if necessary)
Hold down the Home and Back keys
Press the power button whilst still holding down the Home and Back keys
After a few seconds a message will be displayed on the screen prompting you to press the Menu button to confirm the reset process.
Release all buttons, then press the Menu button to hard reset the device
marky33 said:
Haven't you got hard and soft the wrong way round?
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No, a hard reset is usually a reset which removes all power from a device and then starts again - i.e. resetting the hardware itself by removing power
A soft reset is a software reset - i.e. rebooting the software of the phone
marky33 said:
Like this below, wipes all user data
Power the unit off (removing the battery if necessary)
Hold down the Home and Back keys
Press the power button whilst still holding down the Home and Back keys
After a few seconds a message will be displayed on the screen prompting you to press the Menu button to confirm the reset process.
Release all buttons, then press the Menu button to hard reset the device
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Click to collapse
What you're talking about is probably a "factory reset" which should reset the device to factory defaults (i.e. just been sent from HTC's manufacturing factory). But i have never seen it referenced to as a fix for GPS issues - or any issues involving custom rom's for that matter.
I stand corrected about hard and soft
Just wanted to let the people know that the problem was solved after doing the same thing as nijnvy, the second i updated i am getting gps lock in seconds.
Thanks to every one

wifi won't turn on

So I noticed the other day that my wifi will not turn on. When I go to settings and tap the slider it says "Turning on..." but never does. I've been running DIET ICS 7.20.12 and recently 7.22.12. Just tried a complete wipe and re-install and it still won't turn on during the initial phone setup. I think I'll try flashing back to the stock rom and maybe see if that works? Or is it even rom related.

[Q] Bluetooth problem.

I have this problem on my samsung galaxy s3 (i9300) when I try to start the bluetooth it stays in the state turning on for a while and then it stops trying and goes off. Do you guys have any suggestions?
Bump.
Factory reset, then flash latest stock firmware with Odin.
If still the same then it is hardware.
Hi guys.
I have a similar problem. I already tried a bunch of different ROMs and even stock that came with the phone and cant seem to make it work.
It paired successfully with a headset but it doesn't connect to it at all. When I turn discovery on it stays on for 10-15 secs and than bluetooth turns off and back on.
Sending files is a no-go also.
Is there any way to make sure its hardware issue? Is it really common that bluetooth chip dies?
I found the solution. I had tried factory reset, flashing other roms and clearing cache none of this stopped my bluetooth from turning off by itself.
I have to turn off wi fi go to task manager clear cache and then I can start bluetooth normally. I think this is a hardware isaue becouse the wifi and bluetooth are in 1 chip. This is just a workaround so you can use your bluetooth
mitko25522 said:
I found the solution. I had tried factory reset, flashing other roms and clearing cache none of this stopped my bluetooth from turning off by itself.
I have to turn off wi fi go to task manager clear cache and then I can start bluetooth normally. I think this is a hardware isaue becouse the wifi and bluetooth are in 1 chip. This is just a workaround so you can use your bluetooth
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Hi. I have the same issue. Wireless is working but Bluetooth cannot be started.
Can you tell me where you cleared the cache? (step by step?)
Can it also have something to do with the Kernel?

Wifi being stuck on or on/off troubleshooting

So I know this topic has a few posts many a year or so old but I'm looking for a possible work around for this issue. Here's a background of what happened:
I have a rooted note 4 originally running cm12, I wanted to return to a stock build and when I did something happened (can't remember what) and my wifi stopped working it would click on them immediately off my first thought was kernel so I flashed a new one but didn't help I tried a different stock build 5.0.1 instead of 5.1.1 but still same issue. I went back to the cm12 and that seemed to work fine still, I looked for another stock build because I'm stubborn and flashed a different kernel than the previous ones I've tried. This seemed to fix my wifi issue at least for a day then back to the same issues. Anyway here's what I've been messing with to try and figure this out.
I'm focused around the file wpa_supplicant.conf as I've tried restarts and all that but that won't do anything. What I have noticed recently is when I don't have any networks saved in that file I can toggle airplane mode and try toggling wifi, after a few sometimes dozen attempts it comes on and works fine so long as it stays on. If I turn it off I have to restart my process of going into wpa_supplicant.conf>deleting my saved network>toggling airplane>then spamming wifi. As I'm able to repeat this it leads me to believe it's not hardware related, slim chance on loose cable, But if there's a way to prevent the system from auto saving a password that might help with a workaround. I've tried changing that files permissions as well as the ones in the system>etc>wifi folder but they get changed back
Anyway I'm still working on finding the root cause but will update if I find anything also tried deleting the wpa file and that works to after a restart but issue comes back and so does file which doesn't seem to me that its a corruption issue
Update:
So I somehow crashed my Samsung messenger app switch to hangouts and then back so decided to wipe my phone and refresh the OS. I factory reset then advanced wiped cache, dalvik, system and data. When it rebooted I tested the WiFi in the system setup and it worked fine I could turn it on and then off normally so I decided to continue setup once fully setup and no other apps installed I retested the WiFi. It worked fine I connected to an access point and it stayed connected I then forgot the network cycled wifi and tried again and again still worked so I let it sit and would test it throughout the day. About an hour or so later the problem reappeared which was odd. I did my old workaround deleting wpa_supplicant.conf and toggling wifi until it turns on. I got it to turn on and connect to my home WiFi and left it, so far I've kept my wifi on and it's stayed active for 24hours now and reconnects fine to my home router when I'm in range and back to lte when I'm away so right now it seems I can have wifi if I don't toggle it off. Still not sure what's causing this issue as since I'm currently using wifi to write this I don't see it as a hardware issue. After trying multiple kernels I don't see that as the cause either, although possible. Will keep messing around and update if I find anything further
Update 2: so far I've been able to keep my wifi working great as long as I keep it on and don't toggle it off. Doing this has kept it active and auto connecting to my home wifi for a week straight. I make sure to keep wifi I during sleep so it won't disconnect but it also seems to stay active through restarts which is great. This still leads me to believe it's software related and not hardware but not sure where the issue is.
Update 3:
So far I've just kept my wifi on while trying to find the issue. The only other issue I've come across was since my wifi is on 24/7 and auto connects if I want to use my lte instead i have to either turn off wifi or forget my home network which neither is an option. But I have found a solution:
I was able to add a shortcut to my home screen that actually disables the current wifi connection without disabling wifi and forgetting the password. To do this you must have Tasker just create a new task in second tab, I named mine disconnect wifi, click the plus sign and select "net", next select "wifi net" there is an option that says disconnect. Have that selected then go back and thats it,add in icon on bottom right to use as a shortcut. I've tested this and it works great one tap and it disconnects the wifi but keeps wifi turned on and if I want to re connect just go into WiFi settings and choose the one to connect to

G3 backlight turns off after booting.

I got an old G3 VS985. At first it seemed broken beyond fixing but then I realized the backlight turns off after the Android logo comes on. It will be on when off and charging as well. Using a flashlight, I managed to navigate the menu and factory reset. The backlight stayed off throughout the reset and I forced it to shutdown when it started setup and asked for the language because I still couldn't see. But when I turned it back on, it was working properly. However, after a while it went to sleep and when I tried to use it again it was back to the issue. I managed to boot I to the recovery menu and cleared the cache. After that, it rebooted and the screen worked again. I pressed the power button to shut the screen off and back on a few times and it still worked. I left it for a few minutes and it's back to no backlight. I was going to try and reset from the recovery menu but I was only able to get into the menu that one time for some reason. Maybe the instructions I've found are wrong but I tried a few things and can't get back to it. I also checked for updates and it said there aren't any. It's just an old phone that someone didn't want that I thought I could give to my kid to play games with, so not activated or anything. I don't know if it's a hardware issue but it doesn't seem like it because it works for a bit after reset. Any ideas? Also, how can I get into recovery mode every time?

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