Database Users

WiFi issues Unable to turn on/unable to scan for networks

Hello, I'm having an issue, I'm rooted with the nand unlock method. I was on flipz .1d but have now moved to .2. I've had this issue a number of times now specificly the "unable to turn on" which seems to be caused by the owner of the /data/misc/wifi/wpa_supplicant.conf file changing to root. but I am not sure what causes the unable to scan for networks to happen.
Some of the things I have done that seem to be a part of the cause: I ran flipz vanilla lock screen fix and I team douche menu unlock, both seem to make changes to /system/framework/
anyone that might know where to look to fix the scan issue? I've searched the forum and have seen a few people have the problem but no solutions yet.

Was having the same problem (came across your post from a Google search).
I got a hint from code.google.com (can't post the link). I renamed the /data/misc/wifi/wpa_supplicant.conf to /data/misc/wifi/wpa_supplicant.bak (rather than delete it), rebooted and all is well.
Seems you can just delete the file, and it'll be respawned on a reboot.

I am having this problem, but on a vibrant that has not been rooted yet.
I cant seem to find the wpa_supplicant.conf, I have tried browsing for it using the built in file manager and using ASTRO, but the data directory is always empty.
Is there a way to fix this without rooting the phone?

if your phone has not been rooted then that means your phone is f**ked up and might need to be exchanged. but this is the evo forum not vibrant. the only way to mess with system files is to be rooted

Appreciate info*, worked in a heartbeat, saved from reloading everything from scratch, which was my way out last time. Witstech A81E Froyo 2.2
*renamed the /data/misc/wifi/wpa_supplicant.conf to /data/misc/wifi/wpa_supplicant.bak

Good eye there mate!!!!
InstantKarma said:
Was having the same problem (came across your post from a Google search).
I got a hint from code.google.com (can't post the link). I renamed the /data/misc/wifi/wpa_supplicant.conf to /data/misc/wifi/wpa_supplicant.bak (rather than delete it), rebooted and all is well.
Seems you can just delete the file, and it'll be respawned on a reboot.
Click to expand...
Click to collapse
I was experiencing the same issue and read this and it works, good looking out.

same issue on mytouch 4g
i used root explorer renamed tried no good the file stays renamed but the conf. appears under it after i try to enable wifi again help plz?

Who But BilL$ said:
i used root explorer renamed tried no good the file stays renamed but the conf. appears under it after i try to enable wifi again help plz?
Click to expand...
Click to collapse
It just recreates the file when your phone gets rebooted. My Thunderbolt is having the EXACT same issue. Ive tried renaming this and deleting as well and still no luck. Im now kicking over any rocks that I can find to get my wifi working.

I have exactly the same problem.
With Root Explorer deleted the file 'wpa_supplicant.conf' but no changes.
WiFi starts up and closes down again with the famous line: "unable to scan for networks"
anyone?

shoppy said:
I have exactly the same problem.
With Root Explorer deleted the file 'wpa_supplicant.conf' but no changes.
WiFi starts up and closes down again with the famous line: "unable to scan for networks"
anyone?
Click to expand...
Click to collapse
I actually ended up having to get a whole new phone. My insurance company couldnt fix it.

joeavery2 said:
2. I've had this issue a number of times now specificly the "unable to turn on" ......... but I am not sure what causes the unable to scan for networks to happen.
anyone that might know where to look to fix the scan issue? I've searched the forum and have seen a few people have the problem but no solutions yet.
Click to expand...
Click to collapse
I had the same problem. I installed the software from the sony erikcon website to my computer, and then followed the process for updating the phone software. That did not work, since I had the latest software already. So then, I tried to REPAIR my phone software, and after that was done, my phone was functional again, and the wifi works without any problems.
Requirements:
* A PC connected to the Internet (preferably broadband)
* USB phone-to-PC connection. Please see the accessories compatibility list for your phone.
1. Run the software on the computer after it is installed.
2. Follow the procedure for UPDATE or REPAIR (if you already have the latest version).

SOLVED WIYH THIS D12r a33_8723-8703_v11_0312 20141211.IMG
joeavery2 said:
Hello, I'm having an issue, I'm rooted with the nand unlock method. I was on flipz .1d but have now moved to .2. I've had this issue a number of times now specificly the "unable to turn on" which seems to be caused by the owner of the /data/misc/wifi/wpa_supplicant.conf file changing to root. but I am not sure what causes the unable to scan for networks to happen.
Some of the things I have done that seem to be a part of the cause: I ran flipz vanilla lock screen fix and I team douche menu unlock, both seem to make changes to /system/framework/
anyone that might know where to look to fix the scan issue? I've searched the forum and have seen a few people have the problem but no solutions yet.
Click to expand...
Click to collapse
I SOLVED WITH FLASH THIS: D12r a33_8723-8703_v11_0312 20141211.IMG

People still use this phone?

Major issues with Wifi & Bluetooth failure

Hi Guys, I have been having major issues since upgrading the firmware from the Kies software as a standard firmware upgrade....
Just no wifi or bluetooth as soon as you click on the buttons it reboots sometimes several times....heres a link of whats been done so far from a guy that has been helping me on the Vodafone eforum.....
http://forum.vodafone.co.uk/t5/Sams...nger-update/m-p/761803/highlight/false#M16520
Currently running
I now have Firmware 2.3.4
Baseband I9000XXJVP
Kernel 2.6.35.7. XXJVP
Gingerbread XXJVP
I hope someone can help as I am lost without my phone because thats how I get my work...
Regards Lee

Ok found this how can I put these settings on my phone.
Error initializing Wifi scan
Symptom: trying to enable wifi shows scan initialization error message.
Solution: Requires root. Remove /data/wifi/bcm_supp.conf - the file contains wifi access points definitions and will be regenerated. You'll need to re-enter pin codes for known networks.
[edit] GPS lock problems

Come on guys some one must know the answer to this, you lot can hang bells and whistles on your phones and hack NATO

find 3 file froyo tith your csc flash it via odin with pit and pick desired csc
then flas 2.3.4 from samfirmware - any problems should be gone

That's exactly what I done over the weekend went back to 2.2 and installed 2.2.1 then 2.3 etc..
Its seems to be the same faults, someone has suggested its the Antenna that's at fault

adb logcat c:\logcat.txt
produce the bug and so it restarts
ctrl+c to stop writing logcat and pm it to me

I have sent you the logcat txt as an email as it was far to big to send as a pm and I was unsure what parts were not needed...
The wifi is not mentioned but path to bus for bluetooth is a constant failure
( E/BluetoothEventLoop.cpp(125): get_adapter_path: D-Bus error: org.freedesktop.DBus.Error.ServiceUnknown (The name org.bluez was not provided by any .service files)
06-14 11:27:15.546 E/BluetoothEventLoop.cpp(125): get_adapter_path: D-Bus error: org.freedesktop.DBus.Error.ServiceUnknown (The name org.bluez was not provided by any .service files)
I tried to get the wifi to log but everytime the phone locked up
Thanks for taking a look at this for me...

fast google search revealed two fixes for bt:
- hard reset - *2767*3855# - this will wipe your phone stats but most probably will fix both wifi and bt
- http://blog.pfuender.net/?p=61 - this will fix bt alone
also note that adb logcat c:\logcat.txt will log everything till you stop it or phone shuts off so produce wifi bug let it do its reboot or whatever and then ctr+c

- hard reset - *2767*3855# - this will wipe your phone stats but most probably will fix both wifi and bt
Tried these already before and after I put the new software on and have just tried again no difference at all problems still exactly the same...

so pick option #2 and report

It wont connect to my pc to run catlog.
I had to download via 3G and run it on the phone from there so I can not use Ctrl+C unless you know how to bring up a window with in the samsung.
I only got the log by sending it via 3G as an email....to my desktop then copy and pasting to a notepad doc

why cant connect to pc ?

Mine works fine and the one of a friend of mine works fine too wifi and bt on xxjvp

Dont know just finishing my chores around the house and will get onto it!

as an additional after moving file mentioned in article you might want to do 'fix permissions' in cwm recovery

I am also having the same issue:
E/BluetoothEventLoop.cpp( 469): get_adapter_path: D-Bus error: org.freedesktop.DBus.Error.ServiceUnknown (The name org.bluez was not provided by any .service files)
However, my wifi does work. I have a Bell Samsung Galaxy S I9000M. The XXJVP modem didn't work for me (no HSDPA), so I flashed the UGJK3 modem and my connection was back. I followed the instructions on blog.pfuender.net/?p=61, blog "Android/Milestone bluetooth not working", but my '/data/misc/bluetoothd/' directory is empty, thus cannot perform the following step:
‘mv /data/misc/bluetoothd/XX:XX:XX:XX:XX:XX/sdp /data/misc/bluetoothd/XX:XX:XX:XX:XX:XX/sdp.bak <ENTER>’
I will continue to research this issue. I only realized it this morning as an app I am working on requires Bluetooth, and logcat went nuts with error logs (shown above). I will also keep this thread updated with whatever I find.
Cheers,
vinpa.

huh that was htc desire fix =)
lulz understand this - bt should be working out of the box and is working on stock - i can also confirm that it works on cfroot as i use it flawlesly
if you got bt not working now think about what else can be not workign that you do not notice...
imho best way is to make a PROPER system install
basicly youre misising bt deamon or a start link for it = broken system
i am out of this thread, consider yourselfs helped (install stock+cfroot)

Got it working...
I first made a backup with CWM, then flashed PIT512, CODE_I9000XXJVP..., GT-I9000-CSC..., and my original modem.bin.
After it rebooted, I skipped through the setup and rebooted once more into Download mode, flashed CF-Root and then restored. Bluetooth is now functional.
Cheers,
vinpa.

hi, i have updated to 2.3.4 jvp from js3 telenor
all is fine, battery usage is much much better, no laggs, and no FC/FR..
i have turned on the bluetooth once set the name, and turned it off....
after i rooted and brought backups back,i cant use BT anymore. it just stands and turning on for a min or two, and than goes to TURNED OFF state...
any help? any ideas?

Just got a text to say my phone is ready for collection.....
Bet it's not repaired properly and it has to go away again for the same faults..

Evervolv-Perdo-2.1.0p12-passion wifi issue

I noticed some people had issues with wifi with this update in the Evervolv's Aosp TexasIce Cream Sandwich thread below (unfortunately I cannot post there until I get to 10 posts):
http://forum.xda-developers.com/showthread.php?t=1366897
I had the same issue initially, then choose the Forget network option, did a reboot, and then added the network manually (I had to anyway with my hidden network).
Then the network did its thing. Hope this helps

shodan2011 said:
I noticed some people had issues with wifi with this update in the Evervolv's Aosp TexasIce Cream Sandwich thread below (unfortunately I cannot post there until I get to 10 posts):
http://forum.xda-developers.com/showthread.php?t=1366897
I had the same issue initially, then choose the Forget network option, did a reboot, and then added the network manually (I had to anyway with my hidden network).
Then the network did its thing. Hope this helps
Click to expand...
Click to collapse
I will copy your message and bring it to the other thread on your behalf

Thanks!
I cant find the wifi forget option though.
In my case it won even turn on the wifi and therefore it cant find any.
Was searching for the wifi forget option in the wifi settings -> advanced, but could not find it.
Really curious of what to do exactly to make it work again.
Thanks in advance.

KJS021 said:
Thanks!
I cant find the wifi forget option though.
In my case it won even turn on the wifi and therefore it cant find any.
Was searching for the wifi forget option in the wifi settings -> advanced, but could not find it.
Really curious of what to do exactly to make it work again.
Thanks in advance.
Click to expand...
Click to collapse
In my case it started to work after I installed tiamat kernel back after p12 installation wthout wipe. But since rotation and ksm in tiamat do not work yet, I decided to make wiping. So after fastboot -w, and clean install of p12 it works again.

dolphin77 said:
In my case it started to work after I installed tiamat kernel back after p12 installation wthout wipe. But since rotation and ksm in tiamat do not work yet, I decided to make wiping. So after fastboot -w, and clean install of p12 it works again.
Click to expand...
Click to collapse
Did a clean install and reflashed tiamats kernel and nothing worked.
Some people say that comming from p11 and straight away to p12 works just fine.
Thanks though.
---
This worked:
1. Wipe everything 3 times - reformat sd card
2. Install p11 - start it up
3. Install p12 right over it, dont wipe anything.
4. Enjoy the wifi

Thanks for the forward taodan. Hopefully won't be long until I can post there.
KJS021: When you're in the WiFi settings, press & hold on a connected network & then you get the option to either 'Forget network', or 'Modify network'.
Other info:
I started fresh with p11 (ran it for a couple of weeks), then updated to p12 without wiping anything.
I had wifi enabled with the icon appearing, but my network couldn't connect.
Google stuff played up, so next reboot was with gapps reinstalled.
Then I tried the network again & with wifi enabled I couldn't even get the icon appearing. I tried to re-add the network but still no luck. That's when I chose to 'Forget network' & give it a reboot. Then I added the network manually & mysteriously the network connected and the rest is history..
Other weird things that have happened in p12:
Google Maps crashed. A pop-up every few seconds kept informing me of this. I uninstalled Maps (which gave me factory Maps, before the update that is), then I cleared data just because.. Reinstalled from the market & all was good again.
Gallery wouldn't launch from my shortcut. Thought there was an issue, but found the gallery working through another app. Removed the Gallery shortcut, re-added it & that did the trick.
1 random reboot early in the piece, as well as 1 screen lockage I couldn't break out of. It's been good all day today though.
Misc Rants:
Also running A2SD (really needed with this rom) with 1GB ext4. One of the biggest issues I've had to deal with. Formatted my damn card various ways and just wouldn't seem to mount. Still not sure how I exactly got it working, but it wasn't long after I upgraded to the CWM recovery in texasice's downloads (CWM 5.0.2.7), even though I formatted the card elsewhere.
Other Specs: Radio: 5.12.00.08, everything else was done as in the OP of the proper thread.
Loving the rom so far, most things have been running fairly slick for me.
Waiting on the camera/video stuff to be fixed, and also pinch zoom to be smoothed out.

[SOLVED] Wi-Fi MAC Address changing every time wifi goes off/on or with reboot

A brief history of what I've been through before this issue:
My Pro came with 2.2 Froyo from verizon, then flashed Vanilla's CM7 v8 (which is the absolute best ROM I've tested for this phone); no wifi mac address problem here. Then I messed up by installing another recovery, semi-bricked, and forced to SBF to stock Verizon 2.3.3 gingerbread. Then rooted with Pete's Motorola Root Tools, flashed recovery, kernel, wiped, and once again to Vanilla's CM7 v8.
After all this mess, my Wi-Fi MAC address is changing every time wifi goes off/on or reboot, and this is pretty inconvinient for me since both my workplace and home networks have MAC address filter, and changing the router configuration every time I'm forced to reboot my phone is not an option.
YES, I've flashed the Kernel that the developer provides with the ROM.
YES, I've tried reflashing both the rom and the kernel the way the diveloper suggests, doing system/data/cache wipes in between.
NO, this was not happening the first time I've flashed this ROM.
Any suggestions?
Please help!!
SOLVED READ BELOW!

Fix found
Here's the MAC address fix for your Pros running CM7. If you have had an issue connecting to wifi, it's probably because each time the device's wifi is restarted, a new MAC address is generated which will clog up your router as you can easily run out of IP addresses to lease to each and every new MAC address that's generated each time your device's wifi is restarted. The link can be downloaded here. The instructions are simple:
1. Flash CM7MAC.zip (attached) in clockwork no need to wipe anything
2. "Activate it" by going into the terminal emulator app, typing "su" (without the quotes) then typing "mac-address-fix.sh" (without the quotes). A bunch of weird symbols should come up, but that's normal.
What this does is it auto-generates and writes your permanent MAC address to a file called called nvs_map.bin under /data/misc/wifi/nvs_map.bin. It will remain there and your MAC address will remain the same unless you wipe your /data whereas you will simply have to redo it
Note: if you get an error message in the terminal after doing the fix, make sure your Wi-Fi is turned on and you're connected to a network
For CM7, download -->

hi!
my phone does the same, each time WIFI is turned on it generates a temporary MAC address, but the file you mentioned (nvs_map.bin) can't be found in /data/misc/wifi...
could you help me please how the map_gen file is generated? i don't have CWM so i can't flash the zip file, but i have a terminal and two hands
thx

Do we have anything for Android 4.2?

negro_acdc said:
Here's the MAC address fix for your Pros running CM7. If you have had an issue connecting to wifi, it's probably because each time the device's wifi is restarted, a new MAC address is generated which will clog up your router as you can easily run out of IP addresses to lease to each and every new MAC address that's generated each time your device's wifi is restarted. The link can be downloaded here. The instructions are simple:
1. Flash CM7MAC.zip (attached) in clockwork no need to wipe anything
2. "Activate it" by going into the terminal emulator app, typing "su" (without the quotes) then typing "mac-address-fix.sh" (without the quotes). A bunch of weird symbols should come up, but that's normal.
What this does is it auto-generates and writes your permanent MAC address to a file called called nvs_map.bin under /data/misc/wifi/nvs_map.bin. It will remain there and your MAC address will remain the same unless you wipe your /data whereas you will simply have to redo it
Note: if you get an error message in the terminal after doing the fix, make sure your Wi-Fi is turned on and you're connected to a network
For CM7, download -->
Click to expand...
Click to collapse
Note: if you get an error message in the terminal after doing the fix, make sure your Wi-Fi is turned on and you're connected to a network
** How can I turn on Wi-Fi when there's no mac-address? No mac-address, no network! **​

Hi,
I tried running this shell script but seems like its not executed successfully ... reason i believe so is ...
1. i dont see any wierd symbols coming up ... just a pause for a couple of seconds.
2. i dont see the "/data/misc/wifi/nvs_map.bin' file in the said location.
Please help.
thnx

Mac addrs and imei problm
Hi, in my gionee ctrl v4s the problem is two types, i have seen after i was updated lollipop , one problem is tht, whn i reboot my phn thn my mac address automatically changed everytime.. And 2nt problem is tht my imei also erased whn i updated lollipop so plz help me...

this is the best solution
https://www.youtube.com/watch?v=8ejnFB5i5o8

Is there a solution for this in Marshmallow?

yes this is the best solution
Thanks. This process worked well on my lenovo s650 cyanogenmod 13 custom rom. But could someone explain what is really happening through this solution?

my oppo f1s 64gb, it was dead, recovered working fine, but each restart it changes mac id, and remove all wifi stored connections
is there any solutions?

Seems its pretty common for MediaTek chipsets.
Thanks for the video link!

Phone blocked on unlock phase.

Hi,
This last days I have stranges things with my phone, and it is the first time that happened.
When I reboot after install magisk modules or adaway file host, my phone cannot be unlocked.
I type the pin code for unlock my sim card, and after the pin code for unlock the phone.
At this moment I have a black screen and I must retype my code ever and ever.
Nothing to do, just reinstall all the rom. Unable to use a clean backup, this is the same problem.
If anybody knows this issue and can save my life, you're welcome.
Thanks a lot, cordialement

I found the issue.
I can install magisk and reboot normally.
But when I install modules everything is locked.
If anyone have infos?

Lethalben said:
I found the issue.
I can install magisk and reboot normally.
But when I install modules everything is locked.
If anyone have infos?
Click to expand...
Click to collapse
Hello, I am updating my mom's phone and saw your post.
Unfortunately that bug has been around for a few months, I have a quick temporary fix for you but unfortunately the bug will return, if you can live without a screen lock that may be you only solution for now.
Lock Screen ( delete the lock)
Boot to Recovery
Go to Recovery File Manager
Navigate to the /data/system folder
locate and delete the file called : locksettings.db
Now you no longer have a screen lock and you can easily get into the phone.
FYI : If you want the lock again , simply create a new key or pattern
This issue could be anything such as corrupted permissions, It seems that it pops up after installing audio mods and substratum. But I don't think it is caused by either one.
If your phone gets hot while experiencing this issue flash the thermalfix 7 file, located on the thermals thread https://forum.xda-developers.com/showpost.php?p=78717015&postcount=18

This morning I've formated my phone to be sure is not an error from me. I will try your solution if it happens again.
Thanks for your response my friend!

Is it possible f2fs formating data partition is the issue?

Lethalben said:
Is it possible f2fs formating data partition is the issue?
Click to expand...
Click to collapse
It's very likely that this is the origin of the problem. It happens to me too, and have F2FS formated data too.

Forsaken75 said:
It's very likely that this is the origin of the problem. It happens to me too, and have F2FS formated data too.
Click to expand...
Click to collapse
I'm go back to ext4 and everything is OK.
I saw a magisk module who's made for stop this issue.
If there is a magisk module for that I think the problem is f2fs!

Lethalben said:
Is it possible f2fs formating data partition is the issue?
Click to expand...
Click to collapse
I don't think so because I only use Ext4

Well, I think I finally found the true origin of this problem: Magisk Hide interferes with newer Webview implementations, as explained here:
https://www.didgeridoohan.com/magisk/MagiskIssues#
I also found several workarounds:
1) Disable Magisk Hide. I need some banking apps, so for me this is not an option.
2) Use Chrome Beta and select its engine as default Webview in Developer Options. Chrome Beta signature is not buggy, so it works as it should. This is the solution that I've chosen, by the way.
3) Ask our developers @codeworks @mosimchah and the others if they could include this commit that fixes invalid signatures in their future releases:
https://github.com/LineageOS/android_vendor_cm/commit/a3a76f5d1cc233ad8024ffdc74bb3a786e1605c3

Hi all:
Have you managed to solve the screen lock problem? I did not achieve it and I followed all the instructions you mentioned.
A greeting.

txiscoman said:
Hi all:
Have you managed to solve the screen lock problem? I did not achieve it and I followed all the instructions you mentioned.
A greeting.
Click to expand...
Click to collapse
It's some app compatibility issue with Android Pie/Webview for sure. In my case was my banking app, changing to Chrome beta fixed the problem (app still crashes from time to time, but I'm not having the damned screen lock problem anymore)
You can try using Webview component alone from Play Store (I notice that in my case it's working too) or do some research to find out which app is causing the issue and uninstall it (if you can live without it, of course)

Deleted