Develop Bugs

[q] #*help changing the mac address!!

hi, i tried a lot of ways to change the mac address for my samsung s3, i am able to change it but for the wifi wont work until i restart it, and then my mac address changes back to original..(Sorry For My Bad English)!!

[Q] Changing Mac Address

Hi, is there a way of changing the mac address of the s4 mini (gt-i9195)?
I am on Stock Rom 4.2.2 and tried some apps from the Play Store ( MacMan, Mac Address Ghost) but every time I change the Mac Address I can't connect to my router anymore. I always get "authentication error"

junkyde said:
Hi, is there a way of changing the mac address of the s4 mini (gt-i9195)?
I am on Stock Rom 4.2.2 and tried some apps from the Play Store ( MacMan, Mac Address Ghost) but every time I change the Mac Address I can't connect to my router anymore. I always get "authentication error"
Click to expand...
Click to collapse
Backup your EFS. Next you can edit the file under efs which holds Mac adress info.
Not tried, just a suggestion
Edit: The file is "/efs/wifi/.mac.info" on my device.

thank you very much. It worked :good:

[TUTORIAL] How to Change MAC Address of the Nexus 5X

Hey guys!
I have created an app that can conveniently change your MAC address and a lot more! I strongly encourage you to use it instead:
nMAC - Nexus MAC Changer
Code:
[B]/persist/[/B]
bdaddr.txt : interface 0 (main) MAC address
wlan_mac.bin : interface 0-3 MAC addresses
Code:
[B]/system/etc/firmware/wlan/qca_cld/[/B]
WCNSS_qcom_cfg.ini : lines 46-50; interface 0-3 MAC addresses
WCNSS_cfg.dat : nothing I could find
Note that the addresses in WCNSS_qcom_cfg.ini are "Assigned MAC Addresses - will be used until NV items are in place".
To change your MAC, change the first interface in wlan_mac.bin.
Click to expand...
Click to collapse
Thanks to @Thargorsson for pointing out that this method indeed worked!
Enjoy

Nobody interested at all?

Would be interested with how you end up resolving the problem

Ej guy just some notice.
First if you change you're MAC address your Router won't recognize your phone anymore. You have to give in you're password once more otherwise it won't work.
Second take a look at the persist and efs image in your /dev folder more correctly.
OK after all i want to make an executable for that process (I've done it on my s3 neo successful) and create a topic in the general forum. You will also be credited

Thargorsson said:
Ej guy just some notice.
First if you change you're MAC address your Router won't recognize your phone anymore. You have to give in you're password once more otherwise it won't work.
Second take a look at the persist and efs image in your /dev folder more correctly.
OK after all i want to make an executable for that process (I've done it on my s3 neo successful) and create a topic in the general forum. You will also be credited
Click to expand...
Click to collapse
Do you mind explaining further? I didn't find anything in the EFS image (from first glance, at school). I also did put my password again for the WiFi, the phone just can't connect to anything. How did you succeed doing this on your phone? I'm really curious to get it working on my 5X. Thanks!

ViRb3 said:
Do you mind explaining further? I didn't find anything in the EFS image (from first glance, at school). I also did put my password again for the WiFi, the phone just can't connect to anything. How did you succeed doing this on your phone? I'm really curious to get it working on my 5X. Thanks!
Click to expand...
Click to collapse
I can confirm that it is working on my Nexus 5X.
But you cannot use any MAC address you think of.
The mac address is calculated by an algorithm from the kernel and youre wireless router also won't accept any Mac address that isn't compatible with any pattern it has. For example 00:00:00:00:00:00 won't work. (Tested it).
Try to change one or two numbers/letters of your max address and check if it works.
I think you're fault is that you have changed the Organizationally Unique Identifier. (OUI)
That cause you're router (my router does idk if yours too) don't recognize your phone.
Try this mac: 88:9b:39:12:a9:2e
I hoped that helped.

Thargorsson said:
I can confirm that it is working on my Nexus 5X.
But you cannot use any MAC address you think of.
The mac address is calculated by an algorithm from the kernel and youre wireless router also won't accept any Mac address that isn't compatible with any pattern it has. For example 00:00:00:00:00:00 won't work. (Tested it).
Try to change one or two numbers/letters of your max address and check if it works.
I think you're fault is that you have changed the Organizationally Unique Identifier. (OUI)
That cause you're router (my router does idk if yours too) don't recognize your phone.
Try this mac: 88:9b:39:12:a9:2e
I hoped that helped.
Click to expand...
Click to collapse
I changed only the last one digit of my original MAC and I couldn't connect anywhere. The OUI is the first 3 digits AFAIK. How exactly did you make it work?

I did this:
copied the wlan_Mac.bin from /persist to sdcard.
Changed one number. Pushed it back.
Rebooted phone.
Actually I'm on dirty unicorns ROM.

Thargorsson said:
I did this:
copied the wlan_Mac.bin from /persist to sdcard.
Changed one number. Pushed it back.
Rebooted phone.
Actually I'm on dirty unicorns ROM.
Click to expand...
Click to collapse
Wow, indeed it worked! I have no clue what I had messed up last time when I did the same thing...
A phone reboot is not needed, you can just toggle airplane mode on then off.

After a full day of coding an app is now ready: http://forum.xda-developers.com/nex...-nmac-nexus-mac-changer-t3374430/post66746231

will this work for bluetooth address change?

Hi, your app does not change my mac at all. The app seems do what it does when change button is pressed. Display the set mac address. Change the bin file (i looked at it) but the WIfi MAc address in settings is still 02:00:00:00:00:00. DO you know anywhere else i could have messed up my 5x on 7.0?

arviverona said:
Hi, your app does not change my mac at all. The app seems do what it does when change button is pressed. Display the set mac address. Change the bin file (i looked at it) but the WIfi MAc address in settings is still 02:00:00:00:00:00. DO you know anywhere else i could have messed up my 5x on 7.0?
Click to expand...
Click to collapse
Which rom? Kernel ?

Thargorsson said:
Which rom? Kernel ?
Click to expand...
Click to collapse
Kernel: 3.10.73
Build: OPM3.171019.016
Pretty much stock oreo.

Happen to my 5x. It works fine at 6.0.1. but at newer room mac address shown like that and wifi toogle wont turn on but searching bar move

(Need "more" help) WIfi mac address still stuck to 02:00:00:00:00))

Hi,
I have read almost everything that this forum gave me and some solution from the rest of the internet and STILL my wifi mac address is still stcuk at 02:00:00:00:00:00
Wifi won't turn on and it won't display available wifi
I can't remember exactly what caused it but i'll try to share my recollection
I vaguely remember that i was able to connect to the wifi before trying to fix it. Can't recall what really happened
I fixed the random rebooting nexus 5x by using unblod fix
I think i tried rooting it and succeeded with a twrp recovery
I vaguely remember flashing a zip custom rom with wrong version and brought it into a soft brick. Cant find the file anymore.
I reflashed it with flash all batch file from stock firmware
the phone is bootlooping
Fixed it again using unblod exe using the stock firmware's boot.img
Wifi wont turn on
mac address is 02:00:00:00:00:00
Tried on android 6.0, 7.0, 7.1.2, 8.0 and 8.1.0
Other solutions tried:
Nil Mac app. Seems to work app wise but mac is still stuck at 02:00:00:00:00:00 on settings. Wifi wont turn on
Manually edited, placed *.bin file in /persist, and /etc/firmware/wlan/qca_cld/
WIfi mac changer apps from appstore (they dont work)
Some root apps that mess with the phone's setting (cant find anything that seems to deal with wifi mac address)
p.s.
I also tried bricking the phone using TWRP wipe and checking all the wipe locations to eliminate remnants from previous mods
I cant seem to do anything. Still stuck at 02:00:00:00:00:00
Any more suggestions on where to look?
Or is android not getting the real mac address and revert to 02:00:00:00:00:00 and wont let wifi turn on during flash all script?
Thanks in advance.

Recent Android hides the MAC address to prevent tracking. 02:xx:xx:xx:xx:xx means a site-local MAC address.
Try using "ip link" and looking for the wlan0 entry. eg.
Code:
22: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 3000
link/ether 2c:59:8a:xx:xx:xx brd ff:ff:ff:ff:ff:ff

nowster said:
Recent Android hides the MAC address to prevent tracking. 02:xx:xx:xx:xx:xx means a site-local MAC address.
Try using "ip link" and looking for the wlan0 entry. eg.
Code:
22: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 3000
link/ether 2c:59:8a:xx:xx:xx brd ff:ff:ff:ff:ff:ff
Click to expand...
Click to collapse
HI,
thanks for the reply. I already did that and i got a mac address that is not 02:00:00...
then i tried to change it using if config just to see if it changes using the command.
I got an error saying wlan0 not found (not exact words)

Is there a different MAC address in Settings -> System -> About phone -> Status ?

nowster said:
Is there a different MAC address in Settings -> System -> About phone -> Status ?
Click to expand...
Click to collapse
No, it is 02:00:00:00:00:00.

arviverona said:
No, it is 02:00:00:00:00:00.
Click to expand...
Click to collapse
Did this ever get fixed? I'm facing the same issue. However, the steps I did was trying to spoof a MacAddress using Busybox and a terminal emulator.
Just using that would not allow me to connect to wifi, but wifi was turned on. Then I read to change the wlan.bin file in the persists folder.
After I changed that file and did a reboot wifi would not turn on.
I tried:
1. factory reset
2.Changing the wlan.bin back to what it was
3.Sideload android 8.0
4.Flash OEM back to factory
Nothing seems to work. Settings->about->status MacAddress says "unavailable", but
wifi -> preferences -> advance shows MacAddress 02:00:00:00:00:00
Any help would be great,
-realkewl

Try AMC, its the only MAC Address Changer app I could find that worked on my 5x. That was without a screwed up MAC address to begin with, but It might work for you.
I downloaded it from the play store, but now its not there. Here's the apk from my phone:
https://sqerk.com/pythonlimited.amc.apk
Looks like AMC was forked from nMAC :
https://forum.xda-developers.com/android/software-hacking/app-nmac-nil-mac-changer-t3391283

sqerk said:
Try AMC, its the only MAC Address Changer app I could find that worked on my 5x. That was without a screwed up MAC address to begin with, but It might work for you.
I downloaded it from the play store, but now its not there. Here's the apk from my phone:
https://sqerk.com/pythonlimited.amc.apk
Looks like AMC was forked from nMAC :
https://forum.xda-developers.com/android/software-hacking/app-nmac-nil-mac-changer-t3391283
Click to expand...
Click to collapse
Thanks, but I figured it out. I was trying to flash with the same version 8.0...and for whatever reason that did not work, so I tried a costume ROM and it brought back my MAC address, so then I flash again to android 8.1 and my MAC address problems are fixed. Not sure why flashing with the same version did not fix it.
Thanks,
realkewl

realkewl said:
Thanks, but I figured it out. I was trying to flash with the same version 8.0...and for whatever reason that did not work, so I tried a costume ROM and it brought back my MAC address, so then I flash again to android 8.1 and my MAC address problems are fixed. Not sure why flashing with the same version did not fix it.
Thanks,
realkewl
Click to expand...
Click to collapse
What Custom ROM did you use friend? I have the same exact issue with my Nexus 5. Maybe finding your previously installed Custom ROM, I can fix the issue too. I saw a lot of threads says that installing Custom ROMs or downgrading then upgrading OS using OTA updates given from their Android System fixed the issue. MAC address is important and controls everything that has to do with wireless connections in your device. Maybe this can help be fix my issue too. I am almost convinced to buy a brand new smartphone. It's almost my limit here... If this doesn't bother you, please, can you tell me what is the ROM you used?

S20 android 11 change mac address (root) how?

Hello!
In work we have white list of mac addresses for wifi. Otherwise we can't connect to wifi.
Thats why i was always changing my mac address. I have few of them which are in white list.
-------------------
In android 10 (root) it was working like that.
Root/sys/wifi/mac_addr
Opening mac_addr and edited it. After that turn on/off and wifi address was changed.
Now:
Exynos s20 (g980f) android 11 (root)
With android 11 i do same, i change address in mac_addr file ,but it wont change.
Still stays orginal....
Is there maybe some other way how to change it?
Thanks a lot!