Wifi & Bluetooth not turning on. - Xperia Z2 Q&A, Help & Troubleshooting

Hi guys and gals,
I've had a problem for a week or so, neither my wifi or Bluetooth will turn on. I originally started getting intermittent errors such as "Unfortunately, Bluetooth Share has stopped" in connection with Android wear app. These errors started to roll over to new roms following *complete* wipes.
I've re-locked my bootloader, repaired to complete stock 23.4.A.1.264 with no joy. I'm at a loss now and I'm wondering where to go next, could someone advise me before I return for a warranty repair?
Cheers!

D_JWhite said:
Hi guys and gals,
I've had a problem for a week or so, neither my wifi or Bluetooth will turn on. I originally started getting intermittent errors such as "Unfortunately, Bluetooth Share has stopped" in connection with Android wear app. These errors started to roll over to new roms following *complete* wipes.
I've re-locked my bootloader, repaired to complete stock 23.4.A.1.264 with no joy. I'm at a loss now and I'm wondering where to go next, could someone advise me before I return for a warranty repair?
Cheers!
Click to expand...
Click to collapse
I had the same problem before.In my case,wifi chip burned off.They will give you a new motherboard.Just wipe everything and leave no evidence it was rooted or that it has any other customisations which voids warranty.My advice,dont wait for a fix.there is none.

goaway1234 said:
I had the same problem before.In my case,wifi chip burned off.They will give you a new motherboard.Just wipe everything and leave no evidence it was rooted or that it has any other customisations which voids warranty.My advice,dont wait for a fix.there is none.
Click to expand...
Click to collapse
Thanks for the heads up. In my case, I got wifi yesterday, but only briefly. I found that on other phones (nexus) there's what's known as a persist partition, and this can sometimes become corrupted.
Logcat says my Bluetooth and wifi are still there, just there's something going on at the software level that I can't figure out. I'll try the method above today then it's back to Sony for a warranty repair.

Related

Wi-Fi 'stuck' then can't disable or re-enable Wi-Fi

Hi all,
I've started to have an issue with my HTC One X+ where it won't automatically connect to (any) Wi-Fi.
If I then go to settings, Wi-Fi appears as 'Disconnected' but the slider button says 'On'.
If I try and turn it off, it wont turn off. Then 'settings' ends up hanging.
The only way around it is a reboot, but this happens every day now, seems to normally happen when I return home and expect it to drop 3G and connect up to my homes Wifi (as it always has done?).
I really don't want to do a factory reset... I can't say that I've changed anything to cause this...
Does anyone else have the same issue and have you been able to resolve it?
Thanks
I'm having the same problem, but for me I know it didn't start happening until after I did the update. Not sure how to fix either.
Are you both on stock ROM?
I had similar problem after OTA update from AT&T. It was worse than yours since I wasn't able to enable WIFI at all, it just stuck on the "turning on" state. I was able to fix the problem by re-flashing the boot.img following this post:
http://forum.xda-developers.com/showthread.php?t=2235248
Btw my phone is rooted but running the stock rom.
Hope this helps.
KH_Lionheart said:
I'm having the same problem, but for me I know it didn't start happening until after I did the update. Not sure how to fix either.
Click to expand...
Click to collapse
Yes I'm stock and locked right now because I have some problems I need to return the phone under warranty for, and I have the problem where it is just stuck trying to turn on. Thanks for the link, but until I switch this one under warranty I don't want to do any modifications to void the warranty. As soon as I get the new one I will be unlocking and rooting it immediately, not doing so is killing me right now.
Well just reboot in bootloader mode and flash the correspondent RUU. You know how to find the good version?

L9 P760 Wi-Fi stopped working.

Hi, i bought l9 from orange romania 3 months ago. since then, in the first month i managed to update it to official Jelly bean, unlock bootloader, install CWM, and then ofcourse, root. everything went fine except until yesterday when the Wi-Fi suddenly stopped working. When i tried to turn it on it was stuck at Turning Wi-Fi on. I even tried installing CyanogenMod 10.1 on it, with no luck.
After my unsuccesful attempt with cyanogenmod, I also tried restoring a rooted CWM backup of a stock rom. Same problem, wifi doesnt start at all. What should i do?
Thanks in advance!
I had the same problem but I don't remember how I solved it exactly. I have done something in service menu or installed brand new one with kdz.
Try this: http://forum.xda-developers.com/showpost.php?p=41486538&postcount=3
It didn't work. Same problem. Wi-fi hanging at "Turning Wi-fi on". Also, wi-fi mac address , under settings is "unavalaible" and i can't even turn on Wi-fi tethering. Flashing Original KDZ is my last chance. I'll be back with a response as soon i'm done.
L9 stuck "turning wi-fi on"
ccs16rocks said:
It didn't work. Same problem. Wi-fi hanging at "Turning Wi-fi on". Also, wi-fi mac address , under settings is "unavalaible" and i can't even turn on Wi-fi tethering. Flashing Original KDZ is my last chance. I'll be back with a response as soon i'm done.
Click to expand...
Click to collapse
I also have an L9 and started having the same problems last night around the time of your original post. The only difference is that I haven't rooted the phone. There have been recent android updates, however. Any more suggested solutions?
Thanks.
Well, i think there is nothing left to do other than sending it to warranty. I'm still open for suggestions.
ccs16rocks said:
Well, i think there is nothing left to do other than sending it to warranty. I'm still open for suggestions.
Click to expand...
Click to collapse
kdz didn't work?
take a look what logcat is saying
This is what logcat is saying. Another question. It is safe to flash v20.kdz using offline method for fully returning to stock?
Sent from my GT-I9300 using xda app-developers app
LE for users having the same problem. After sending it to warranty they changed the "faulty" motherboard. Now wi-fi is working just fine. Seems that i've got a problematic unit in the first place. Even though i unlocked the bootloader they changed it under no fees.

[Q] GSM Radio hardware

My GSII I9100 got pretty wet in the rain recently - I was so stupid!
I was running CM10.1 nightly on it.
After this, it was working fine for a few days and then started to loose network quite often. So I decided to factory reset to see if that fixes it. I also flashed the latest nightly when I did the reset. This got me in to a boot loop, which did not get resolved by another wipe data. So I flashed a Stock JB 4.1.2 via Odin. This also resulted in a boot loop but got resolved when I did a wipe data. At this point, I lost my IMEI.
My next action was the biggest mistake of all - I deleted the EFS without a backup so finally ended up with a generic IMEI.
I already know the solution for this problem - I took it to the service center; they tried to flash the software etc., and finally said this can be fixed only by a motherboard replacement.
Following are the questions that I have for the experts:
1. I cannot receive or make calls but I get HSPAP as well as EDGE data. Does getting EDGE connectivity means that my Radio hardware is working fine?
2. Are there any Apps or API calls that can indicate that the Radio works fine? I don't want to replace the entire motherboard without an actual hardware problem.
3. Are there anyone in the forum who has/knows people with a box to get my IMEI repaired? I'm from Chennai, India.
I thank you all for a patient reading. Looking forward to your advice.
Take it to a local phone shop they will be able to sort imei out pretty cheap compered to a mb replacement.
--------------
alliances+siyah

[Help] Lost IMEI after update to , and downgrade

Well, received my Sony Xperia Z Ultra C6833 a couple of days ago.
Received a notice on the OTA, upgraded to 14.1.B.2.257
I encountered random restart issues whenever Wifi is activated, so I thought, fine.
I finally have access to my computer, installed the PC companion, it prompt me with a new 14.2.A.0.290 update.
Again, I updated my phone, hoping it'll fix the Wifi problem.
After restarting, I did a test, as usual. Wifi problem persists, and what's worse, a new problem. Wifi and Playstation 3 SixAxis controller connected using bluetooth didn't play nice, caused my phone to reboot.
I know a lot of people downgraded the firmware back to the previous version, with NAN backups etc.
And some even managed to restore their IMEI back to normal.
But for my case, I haven't root my phone, attempt to downgrade it using Flashtool, lost my IMEI.
Seems that I have no choice, but to return it back to 14.2.A.0.290 praying that it works, and I still can't see my IMEI.
No, I don't have a NAN backup. That's the part which gave me a headache. I've messed around with HTC one X (a year ago), never had this problem problem before, and it's something new I've learnt from you guys today.
Tried cyangenmod's boot.img, doesn't do me any good.
Anyone managed to recover their IMEI here?
Otherwise I might have to get it back to the dealer for a replacement.
Update: Thanks to krabappel2548's guide, I've managed to flash it to 14.2.A.0.290 again and got my IMEI back, but SixAxis still won't play nice with Wifi, and the problem with random reboots while Wifi is ON still persists.
we have the same issue, mine happened during the old update, after ota wifi gets stuck, wont turn on and reboots the device. upto now its still not fixed. 3 updates have passed and still the issue persist. hope you find a fix it will help me too. tried everything from downgrading, flashing custom rom,kernel, upgrade, unlock, relock but still cant fix it
I guess i'm not the only one then. I can live with the wifi issue for the time being as long as i stick to using data. But i fear it's going to affect tethering should i need that.
Please take a look at this post, it may help you. --> http://forum.xda-developers.com/showthread.php?t=2573349
nopponm said:
Please take a look at this post, it may help you. --> http://forum.xda-developers.com/showthread.php?t=2573349
Click to expand...
Click to collapse
Read it the moment I discovered that my IMEI is missing.
I tried reflashing excluding the baseband, doesn't work for me, right after i realized i have a missing IMEI.
Read up on the android emulator, but haven't tried it, as my computer is kinda old, took forever to run it. Will try it once I get my hands on a faster computer
Bah. Crashed when I tried to use my qx100 which i've just received. Haha. Anyone else has any fun with qx100 and z ultra combo? The Z ultra almost reminds me of my ex-girlfriend.
Meanwhile, I can't wait for kit Kat, and hope they really squash these bugs
The best thing would be to contact Sony and make them aware of this bug. Losing your IMEI by simply updating should never happen and it's quite a serious bug.
Actually i lost it after downgrading. Downgrade is simply because of phone keeps rebooting after I turn Wifi on.
LordManhattan said:
The best thing would be to contact Sony and make them aware of this bug. Losing your IMEI by simply updating should never happen and it's quite a serious bug.
Click to expand...
Click to collapse
let's hope this is the answer : p
New build 14.2.A.1.114
abuihsan said:
let's hope this is the answer : p
New build 14.2.A.1.114
Click to expand...
Click to collapse
I certainly hope so too.
Hope it fixes the rebooting issue with WiFi enabled.
Or the Google Play Edition port if it does fix the problem too
Anyone tested the new update yet? Does it fix the wifi issues with crashing/rebooting?
ok so i purchased my phone on amazon and got it somewhere around feb 25th, i got a message on the phone to update software so naturally i did, then i discovered what rooting does and i decided to follow some youtube instructions to flash my phone to an earlier firmware the link wasnt working so i found another which was C6802_14.1.B.0.475_GENERIC Hong Kong.ftf after flashing this i lost my imei its all zeros and i then tried flashing C6802_14.1.B.1.526_M3dD0g.ftf with no luck so im trying to find out what the updated software was that i must have downloaded when i first got the phone given the date i had recieved it im thinking that the 14.2.A.1.142 is the correct one that i must have updated to, i was running version 4.3 jelly bean before all this happened i also have this problem where everytime i turn off the phone and turn it back on it is in the chinese writing again and asks me to select my language again anyone know what to do short of return the phone while i still got time my internet is extremely slow im tired of it taking 4 hours to load a new ftf just to find out its not the right one ive heard some where hving success with the 290 getting their imei back but im thinking thats the software they started with or updated to to get it back so i have no idea which one i started with or which one i updated to all i know is the date i got it and that possibly its the 14.2.A.1.142 looks really familiar im downloading that one now so we will see what happens and i also read something about flashing excluding the basebands so if that is part of it please make it as clear as possible im obviously a noob but im learning quick
Pleas dont ask the same question in multiple threads.
See my reply to the other thread you necromanced

WiFi module won't even turn on

Hi guys,
I have a serious problem on my Z4 Tablet LTE. It's running latest 6.0, but from some time I am having problem with wifi module. It simple doesn't turn on, it freezez on "Turning on..." screen. I've tried almost everything from factory reset to Xperia Companion Firmware recover. Unfortunately, nothing fixed the problem.
I am thinking of downgrading to lollipop, is it possible without root? I don't want to root the device, since if downgrading doesn't fix the problem, I will have to send the device to warranty.
After some research on the topic, I've found out that It's more common issue on Z4 tablet, someone has even recorded how the issue looks like. However in my case tablet doesn't reboot. Here is the link:
LINK
UPDATE:
It was an hardware problem. I've got my Z4 tablet replaced on warranty.

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