Develop Bugs

Wifi turned off while screen off

Hey everybody,
i actually have the problem, that the wifi connection will turn off after the display is off for a while - reconnects when turning the display back again.
The advanced wifi settings are set to "wifi off in standby: never" and also the powersaving sattings are set to "normal".
So normally the wifi connection shall stay on while the display is off - but she doesn't.
Any hints? Any solution?
Firmware is the B111 and a factory reset was done after upgrading ...
PS: Excuse the maybe wrong spelled menu entries - my phone is set to german language.

Hi,
Maybe have you a soft installed like Juice defender or Green power?

peyob said:
Hi,
Maybe have you a soft installed like Juice defender or Green power?
Click to expand...
Click to collapse
Nope - i don't.
Just the pure stock ROM with the default powermanagement.
I just flashed the leaked B114 preliminary ROM - we will see if the problem is fixed

It's a bug of the first ROM-Versions... had the same since B104... need a hard-reset to fix this. Now i'm on B111 after hard-reset and everything is fine.

Just to clarify: Hard reset means a factory reset initiatet from the normal menu? This was done after the update to B111.
The B114 still shows the problem. (no factory reset after updating from B111 to B114)

Dunkelwesen82 said:
Just to clarify: Hard reset means a factory reset initiatet from the normal menu? This was done after the update to B111.
The B114 still shows the problem. (no factory reset after updating from B111 to B114)
Click to expand...
Click to collapse
I seem to have the same bug and when my WiFi is on it disappears like in nowhere, then I have to turn off and turn on WiFi again ...
I always do a hard reset after every new update (ROM).

Bug is in the B114 Rom too. I use Wi-Fi Matic, I hope so...
Sent from my HUAWEI P6-U06 using xda app-developers app

Beready said:
I seem to have the same bug and when my WiFi is on it disappears like in nowhere, then I have to turn off and turn on WiFi again ...
I always do a hard reset after every new update (ROM).
Click to expand...
Click to collapse
have the same issue on clean b114, didnt have it on b111
One guy here recommended turning off "wifi optimisation" in advanced wifi options. I turned it off this morning, so far so good.

have you tried under wifi and setting chech always on during sleep?

B125 resolve this issue for me..

primo14z said:
have you tried under wifi and setting chech always on during sleep?
Click to expand...
Click to collapse
Sometimes this is the cuestion

neodante said:
Sometimes this is the cuestion
Click to expand...
Click to collapse
Ever es ThE question when other options fails
Saludos monstruo!

Had the same problem on B111 but after updating to B125 worked like a charm.
But i have another problem with this phone: wifi keeps disconnecting while im browsing and mostly i have to go to Settings and connect it myself again.Had this problem both on B111 and 125.Any help with that?
Sent from my HUAWEI P6-U06 using Tapatalk

[Q] Data connection randomly disconnects (Carbon JB ROM)

Hello,
I have an issue that my data connection (internet) keeps disconnecting randomly and I either have to switch it off and on again, or turn airplane mode on and then off, or even restart the phone to get the data connection working again.
Is this normal for this rom? is there some fix for this? For a first few weeks everything was fine, but now it is intolerable.
I had this issue on stock rom too, but only a few times, when I completly lost signal, I had to restart the phone.
Help! i don't want to flash the rom again and start from scratch again
Thank you in advance!:laugh:

No one can help? Anybody facing the same issue?
Sent from my GT-I9195 using XDA Premium 4 mobile app

Hi, I seem to have the same issue. I deleted the other unused apns and now it seems to be better, but I just did this now, so in not too sure myself yet. Any help would be appreciated.
// didn't help

SOLUTION
hey there,
i think i found the solution, you need to install a KK modem (i assume you have a KK rom)
http://forum.xda-developers.com/showthread.php?t=2545784
hope that helps
Matekofski said:
Hello,
I have an issue that my data connection (internet) keeps disconnecting randomly and I either have to switch it off and on again, or turn airplane mode on and then off, or even restart the phone to get the data connection working again.
Is this normal for this rom? is there some fix for this? For a first few weeks everything was fine, but now it is intolerable.
I had this issue on stock rom too, but only a few times, when I completly lost signal, I had to restart the phone.
Help! i don't want to flash the rom again and start from scratch again
Thank you in advance!:laugh:
Click to expand...
Click to collapse

Calling issues SM-P605 4.4.2

Hello. I have only one issue after updating ROM from 4.3 to 4.4.2 and this is that when the device goes into sleep (for example after 1 min) then if somebody wants to call me he can not reach me as like if I have 3G off. When I turn device on (screen on and unlock) then it is normally working. I tried to reinstall cca 7 different offic 4.4.2 Roms but issue still here. With 4.3 everything worked well.. Any idea how to solve it? I'm out of ideas

vojta20vt said:
Hello. I have only one issue after updating ROM from 4.3 to 4.4.2 and this is that when the device goes into sleep (for example after 1 min) then if somebody wants to call me he can not reach me as like if I have 3G off. When I turn device on (screen on and unlock) then it is normally working. I tried to reinstall cca 7 different offic 4.4.2 Roms but issue still here. With 4.3 everything worked well.. Any idea how to solve it? I'm out of ideas
Click to expand...
Click to collapse
Hello,
i have the same problem!!
PS: in meantime you have solved the problem?
Thanks.

I did check calls receiving on my tablet and it's working flawlessly.
I have NF2 version of NEE firmware but CSC is set on XEO (Poland). But while moving from 4.3 to 4.4.2 I did factory reset afterwards to get 4G connectivity.

Hello,
i solved making downgrade, i followed this tutorial: http://forum.xda-developers.com/show....php?t=2768219
For now i solved in this way and i wait OTA update.
Regards.

Unable to start Wifi & Bluetooth

My LG G3 wifi & bluetooth stucked at turning on. Tried factory reset, flashed the ROM & use FXR wifi fix and rescue but still not working. Have not tried changing to another Kernel yet. Could it be hardware problem?

I don't think so... Maybe an app is in conflict with wifi & bt.
Inviato dal mio LG-D855 utilizzando Tapatalk

f.gritti97 said:
I don't think so... Maybe an app is in conflict with wifi & bt.
Inviato dal mio LG-D855 utilizzando Tapatalk
Click to expand...
Click to collapse
But I've already factory reset & flashed the latest stock ROM. Did not install any apps except the default apps.

fongkit82 said:
But I've already factory reset & flashed the latest stock ROM. Did not install any apps except the default apps.
Click to expand...
Click to collapse
I don't know how to hekp you then... That's pretty strange to me [emoji53]
Inviato dal mio LG-D855 utilizzando Tapatalk

Similar issue on my end - About a month ago, I opened a support ticket with LG. They returned as "repaired" and my phone worked for about three days before the issue returned.
Using Titanium Backup, I restored the bluetooth system software and it worked for about a day. Considering flashing my phone back to stock and starting over.
If anyone has experience on finding a permanent fix to this issue, I'd be all ears.

Try booting into safe mode and see

I'd be very interested in a fix for this too.
I've a completely stock unrooted D855 that last week seemed to over heat and shut itself down. On restarting it's eaten it's way through the battery in very short order, gotten hot and shut down again. Rince and repeat a couple of times. I've then factory reset and its continued to do the same thing.
Further investigation has shown the WiFi and Bluetooth "turning on" constantly without ever actually turning on. And I've then discovered that the MAC address (and Bluetooth equivalent) are missing.
Would appreciate any help possible

Seems like i'm not alone. Yup my phone auto restarted few days ago after turning on wifi & it keep rebooting if the wifi is turned on. Only stable after i flash the ROM but the WiFi & Bluetooth issue persists. Safe mode does not help.

Same issue started 2 weeks ago. Factory reset didn't fix and battery life being killed by constant searching for BT and wifi. Unlocked G3. Waiting for Marshmallow in the hope it fixes it.

You could also have broken firmware when i got my g3 wifi turned on and off and always dropped connections i ended up reflashing stock with flash tool and tot method and it fixxed i had a bad firmware download straight from lg

hmm so no one has a way to fix this issue?

fongkit82 said:
hmm so no one has a way to fix this issue?
Click to expand...
Click to collapse
Same problem here, wifi and bluetooth mac address unknown, return to stock with kdz files, 10a, 10f, 20, 21a, nothing work, .tot method also not work.
On 4.4.4 = boot loop, and for android 5 battery drain and wifi bluetooth issues.
Waiting for marshmallow

i found a post by someone else in another forum that fixed this problem. I followed some of his steps to reboot into safe mode to turn off the bluetooth & wifi but it didn't work so i turn on Airplane mode while i'm on safe mode & reboot again in safe mode & it works.
http://forums.androidcentral.com/lg-g3/595554-lg-g3-wifi-bluetooth-won-t-turn-why.html

Any fixes with Marshmallow ?

Would be good to know a fix as recently happened to me. Can now only use data for Internet and am getting through a battery in 3 and a half hours as the phone is constantly trying to connect the WiFi and BT. Tried Factory reset. Used LG Mobile Support to update software. Now finally have the lovely Marshmallow but the issue remains. Please help!

Has anyone found a solution to this problem?

Anyone found anything on it?

Same problem here. Wifi and bluetooth randomly stopped working. It works randomly sometimes..
Wifi mac address shows as 00:02:00:00:00:00

New Battery
Hey everyone, I had the same problem. After installing an OTA update, my D850 crashed. When it started up again, I had no WiFi/BT. I tried several factory resets, flashing multiple custom roms, tried unrooting and returning to stock. Was convinced it was a hardware problem. As a hail mary, I ordered a new battery off Amazon. I put the replacement battery in my phone, and WiFi and Bluetooth are now fully functional. Is it possible that everyone with this problem just has a bad battery? It's definitely worth a shot.

probably a hardware issue...
Hey guys,
if brysclar's hint about the battery (see right above) doens't help you, you might want to check out a detailed summary I've written about this issue here: http://forum.xda-developers.com/general/help/qa-wifi-stuck-mac-020000000000-g2-g3-g4-t3452133
Good luck!

Huawei mediapad M2 10.0 A0L1: missing wifi

Hi guys! first of all sorry for the poor english.
I have a Huawei mediapad M2 10.0 A0L1 said M2-A0L1 , 3 Go ram , 16 GB, 3G sim card, EMUI 3.1 android 5.1.1, Build : M2-A01LV100R001C233B011SP01-log.
Custom rom, no root, no bootload
I think it is a chineese modele.
Now the story:
I tried somedays ago to upgrade the mediapad with some huawei updater found on the playstore, as they say at my own risks. I tried to be as carefull as I could (updating/grading mediapad could be tricky as some models herbely differ from one another).
So I found one (mistook) and it perfomed the uppdate directly within the internal sd.
The update seemed to have suceeded but after the reboot nothing seemed to have changed, I even tried a second attemp but still nothing changed. I then wanted to connect to internet but no connection eventhough wifi toogle was on.
I gave a look to the settings and it appears that IP number is missing too.
I recently tried to upgrade via external sd to android 6 (europeen version) but failed once again.
Then performed a factory reset since the recovery reset ( power button + low sound button) did work for me. And even with all that done still no wifi
What should/could I do , that appart the tablet is running clean. I just need my wifi back.
THANKS FOR THE HELP and have a good day

nyoube said:
Hi guys! first of all sorry for the poor english.
I have a Huawei mediapad M2 10.0 A0L1 said M2-A0L1 , 3 Go ram , 16 GB, 3G sim card, EMUI 3.1 android 5.1.1, Build : M2-A01LV100R001C233B011SP01-log.
Custom rom, no root, no bootload
I think it is a chineese modele.
Now the story:
I tried somedays ago to upgrade the mediapad with some huawei updater found on the playstore, as they say at my own risks. I tried to be as carefull as I could (updating/grading mediapad could be tricky as some models herbely differ from one another).
So I found one (mistook) and it perfomed the uppdate directly within the internal sd.
The update seemed to have suceeded but after the reboot nothing seemed to have changed, I even tried a second attemp but still nothing changed. I then wanted to connect to internet but no connection eventhough wifi toogle was on.
I gave a look to the settings and it appears that IP number is missing too.
I recently tried to upgrade via external sd to android 6 (europeen version) but failed once again.
Then performed a factory reset since the recovery reset ( power button + low sound button) did work for me. And even with all that done still no wifi
What should/could I do , that appart the tablet is running clean. I just need my wifi back.
THANKS FOR THE HELP and have a good day
Click to expand...
Click to collapse
Hi, sorry to hear about your troubles from flashing an incorrect ROM. It may be that the ROM you flashed messed with the radio partitions on the device, or that your /system/phone.prop file is incorrect.
Here is the official Huawei ROM for B025 for the M2-A01L (M2-A01L, Android 5.1.1, EMUI 3.1, V100R001C233B025): http://download-c.huawei.com/download/downloadCenter?downloadId=78087&version=310901&siteCode=cn
You can try downloading and flashing this ROM after performing a factory reset on your phone. Hopefully this will flash the clean ROM onto your phone, fix your radio settings and cure your wifi problem. Good luck!
EDIT: Also, please note that some ROM versions have problems with Wifi if the Wifi router is configured to send out 5GHz "AC-Only" mode Wifi connection - you need to set your wifi router to "Mixed" or "N-only" mode on the 5GHz band to get wifi connectivity back.

Thanks beast.in.black I'll give it a try and let you know whether it works for me!
Cheers

Soooo it worked, wifi is back again thanks to you beast.in.black. Now do you think I can find and download the asian (chineese) marshmallow version ?
Thanks again

nyoube said:
Soooo it worked, wifi is back again thanks to you beast.in.black. Now do you think I can find and download the asian (chineese) marshmallow version ?
Thanks again
Click to expand...
Click to collapse
As far as I know, there is no Marshmallow that exists for this device (10.1 model)... Where did you find one? There is not a single thread in this forum that says that a Marshmallow ROM exists for this device

Hey sorry for the late answer but you are right there is none it was a mistake.
Have a good day