Root CM10 changed my mac address.

iBananakiller · Oct 19, 2014

I flashed my two LG Motion yesterday and their wifi performance was incredibly slow. Spent a whole day to figure out what' going on. Turned out cm10 changed their mac addresses and now the mac addresses are same. If I turn one device offline then the other will have no wifi problem. But they can't connect to same router same time.

Any fix idea?

parylizer · Jan 25, 2015

Hello, were you able to fix this issue? I also flashed CM10 on two LG Motion's and having the same issue now.

iBananakiller · Jan 25, 2015

parylizer said:
Hello, were you able to fix this issue? I also flashed CM10 on two LG Motion's and having the same issue now.

Yes I did.
The mac address has been written in system/ect/firmware/wlan/prima/wcnss_qcom_wlan_nv.bin. Edit the file to assign a new mac address.

parylizer · Jan 25, 2015

iBananakiller said:
Yes I did.
The mac address has been written in system/ect/firmware/wlan/prima/wcnss_qcom_wlan_nv.bin. Edit the file to assign a new mac address.

Wow, thanks alot! I have been looking for days where it is stored and couldn't find it. What did you use to edit the file?

iBananakiller · Jan 25, 2015

parylizer said:
Wow, thanks alot! I have been looking for days where it is stored and couldn't find it. What did you use to edit the file?

Because the mac address is hexadecimal, a hex editor such as ultraedit can do it.

parylizer · Jan 25, 2015

iBananakiller said:
Because the mac address is hexadecimal, a hex editor such as ultraedit can do it.

Where in this file is the mac?

iBananakiller · Jan 25, 2015

Can't remember. You gotta find it yourself. Check your motion, get the mac, check with the file. It's in hexadecimal.

parylizer · Jan 25, 2015

iBananakiller said:
Can't remember. You gotta find it yourself. Check your motion, get the mac, check with the file. It's in hexadecimal.

Hmmmm I have looked through the whole file and does not seem to be in there

parylizer · Jan 25, 2015

iBananakiller said:
Can't remember. You gotta find it yourself. Check your motion, get the mac, check with the file. It's in hexadecimal.

Found another thread saying you have to edit the line 0000000a but my files does not have this line

iBananakiller · Jan 25, 2015

parylizer said:
Found another thread saying you have to edit the line 0000000a but my files does not have this line

Your file will have a line which is exact same with your current mac address. You have to view and edit it with a hex editor. That all I can help.

parylizer · Jan 25, 2015

Tried editing the file in hex editor app instead of on pc and worked! Thanks

(There was no line with my mac when I copied the file to my pc and tried editing)

seitys · Jan 27, 2015

I have the same issue except on CM11. The hex editor in the play store kept crashing. I managed to edit the file in windows but when I tried to replace the old file with the newly edited file, I got permission denied.

iBananakiller · Jan 27, 2015

seitys said:
I have the same issue except on CM11. The hex editor in the play store kept crashing. I managed to edit the file in windows but when I tried to replace the old file with the newly edited file, I got permission denied.

Change permission in file explorer is easy.

seitys · Jan 27, 2015

iBananakiller said:
Change permission in file explorer is easy.

Yes I see. All I had to do was press the menu button and select root for ES File Explorer. New permissions allowed me to replace the file.

RaZi7294 · Apr 19, 2016

Plz help me friendzz:-
How to edit wcnss_qcom_wlan_nv.bin file...I searched every single letter with hex editor... I got nothing related to my Mac address's.....Plz explain the editing process in full details.......plzzzzzzzzzzzzZ

Root CM10 changed my mac address.

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