Managed to fix my wifi mac address problem with some info read in this thread:
forum.xda-developers.com/showthread.php?t=1131649
all performed using linux,
connect phone to pc using in terminal
adb shell
dd if=/dev/block/mmcblk0p3 of=/sdcard/filename.img (stored image of block on sdcard)
exit
exit
disconnect then reconnect phone to pc this time allowing access to sdcard.
in terminal mount the image for editing
mount -o loop /source/filename.img /destination/
using a hex editor modify '/wifi/wlan_mac.bin' with wanted address
save
unmount /destination/
the filename.img has now been modified and needs to be returned to the phone
remove the phone then reconnect and using 'adb shell'
su
chmod 777 /sdcard/filename.img
dd if=/sdcard/filename.img of=/dev/block/mmcblk0p3
reboot
now after the reboot connect your phone to the wifi and it will be using your new address
Original question below:
got 2 of these Atrix phones.
i have rooted both following this guide
wiki.cyanogenmod.com/wiki/Motorola_Atrix_4G:_Full_Update_Guide
now my one has this installed:
cm-7-20121014-NIGHTLY-olympus.zip
the wifes is still stock.
now we both have been experiencing wifi problems, which i have traced to both phones having the same wifi mac code
98:4B:4A:5D:8D:4C. Resulting in the router not being able to distinguish between them, a right mess.
i have tried following this guide to change my mac address
pocketnow.com/tweaks-hacks/motorola-atrix-4g-how-to-change-wi-fi-and-bt-mac
but changing the address in this file has no effect, its as though the mac address above is a spoof. Not the address stored in /pds/wifi/wlan_mac.bin
i have also tried from terminal 'busybox ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx'
this also does not change my address.
others mention to change the contents of nvram.txt here:
/etc/wl/nvram.txt
this also has made no change
the 2 file locations mentioned contain different mac addresses from the one above.
which file contains this code '98:4B:4A:5D:8D:4C' ?
How do i change the mac address?
i think mac address related to hardware so you can't change it. I have flashed several roms but the mac address is constant, the only change is device name.
Sent from my MB860 using xda app-developers app
lambcutlet said:
which file contains this code '98:4B:4A:5D:8D:4C' ?
How do i change the mac address?
Click to expand...
Click to collapse
/pds/wifi/wlan_mac.bin looks like the right place. But be aware that messing up your PDS could mean quite bad consequences for your phone.
I'd probably dump the entire PDS partition into a file and back it up somewhere if I were you.
voncount said:
i think mac address related to hardware so you can't change it. I have flashed several roms but the mac address is constant, the only change is device name.
Click to expand...
Click to collapse
Nope, wrong.
It's true a MAC is a hardware address, but it's not true it cannot be changed.
ravilov said:
/pds/wifi/wlan_mac.bin looks like the right place. But be aware that messing up your PDS could mean quite bad consequences for your phone.
I'd probably dump the entire PDS partition into a file and back it up somewhere if I were you.
Nope, wrong.
It's true a MAC is a hardware address, but it's not true it cannot be changed.
Click to expand...
Click to collapse
pds backup was performed. My address is different in the 'wlan_mac.bin' file, probably the original F8:7B:7A:xx:xx:xx. i did manage to change its contents but still it appears to be over-ridden by '98:4B:4A:5D:8D:4C'
its weird that both phones have the same mac address
also noticed the bluetooth address is different 00:11:22:33:44:55
there is a program somewhere on my phone over riding the original addresses.
does anyone know what it could be?
has anyone else used the same guide as me to root the phone and ended up with the same mac and bt addresses?
Related
I noticed after loading the cm7 alpha that my NT's MAC address had changed. I'm speculating that we're all using the same one rather than something unique. At this stage in the game it doesn't matter much unless someone has two devices on one network. But if I'm correct it's something that should be dealt with eventually.
This is my "new" MAC, 08:00:28:12:03:58. What's yours?
LordGibson said:
This is my "new" MAC, 08:00:28:12:03:58. What's yours?
Click to expand...
Click to collapse
Yep, the same as yours.
This thread on the Kindle Fire discusses the issue some.
I am using the SD Card version of CM 7 and do not believe I am experiancing this issue. I' m not 100% sure but I use MAC Address filtering on my wifi router and had no problem connecting when running the ROM.
I'm on stock right now and do not have the SD handy but I will verify later.
Obviously if my mac address had changed I shouldnt have been able to connect without adding the "new" mac to the router config.
Edit: Confirmed that I am NOT affected by this when running off the SD Card.
Land Master said:
I am using the SD Card version of CM 7 and do not believe I am experiancing this issue. I' m not 100% sure but I use MAC Address filtering on my wifi router and had no problem connecting when running the ROM.
I'm on stock right now and do not have the SD handy but I will verify later.
Obviously if my mac address had changed I shouldnt have been able to connect without adding the "new" mac to the router config.
Click to expand...
Click to collapse
Agreed. It sounds like it didn't affect you. That's how I noticed - had to authorize the new address on a dozen networks this week
LordGibson said:
This thread on the Kindle Fire discusses the issue some.
Click to expand...
Click to collapse
Later in that thread they talk of using the stock wlan_loader to restore the original MAC. I gave it a go but that didn't work. It didn't fail but didn't restore the MAC.
Figured I give the NVS stuff a try. I was able to create nvs_map.bin using the instructions from this thread but no matter where I put the edited file the driver stated: "No Nvs, Setting default MAC address".
For those with a single Nook this isn't a problem but as soon as two are on the same network problems will ensue.
LordGibson said:
This thread on the Kindle Fire discusses the issue some.
Click to expand...
Click to collapse
Quick Workaround: Use the instructions in the mentioned Kindle Fire thread. You will need to save the calibration file as /system/etc/wifi/WifiBackupCalibration. Make sure the permissions are correct.
Details: The wlan_loader program is called by /init.omap4430.rc with the option to load the eeprom calibration file but that file doesn't exist (simple typo WifiBackupCalibration versus WiFiBackupCalibration, capital F). If wlan_loader can't find that file it uses the default MAC address. I'm not sure what the long term fix is because it looks like our two options are the default MAC or one that you hex edit into the calibration file. I let the development team know of the typo. Hopefully they have resources on how to give a distinct MAC to each.
I still had my old MAC from a previous dhcp lease file and it is now working great with the stock Nook MAC.
EDIT: This is only for those using the initial CM7 alpha as it is already fixed in the next version.
jeffml said:
Quick Workaround: Use the instructions in the mentioned Kindle Fire thread. You will need to save the calibration file as /system/etc/wifi/WifiBackupCalibration. Make sure the permissions are correct.
Details: The wlan_loader program is called by /init.omap4430.rc with the option to load the eeprom calibration file but that file doesn't exist (simple typo WifiBackupCalibration versus WiFiBackupCalibration, capital F). If wlan_loader can't find that file it uses the default MAC address. I'm not sure what the long term fix is because it looks like our two options are the default MAC or one that you hex edit into the calibration file. I let the development team know of the typo. Hopefully they have resources on how to give a distinct MAC to each.
I still had my old MAC from a previous dhcp lease file and it is now working great with the stock Nook MAC.
Click to expand...
Click to collapse
I posted a link to this thread in the Alpha ROM thread, I'm also going to PM Celtic later today and see what he says about it - this a pretty strange bug but it probably has a very easy fix.
Hello.
I used the ubuntu restore from AdamOutler. It worked like a charm to restore my borked Nook tablet. But for what ever reason it picked up a serial number that doesnt match the one that is registered to me and my tablet. Is there a adb command or something along those lines that i can restore my serial with? I changed the serials via root explorer but it always defaults back to the wrong serial. I know it must be something I did along the line of trying to fix it but it bothers me it doesnt match to my account. It wont let me register it again. Thank you for any help...
markbird1 said:
Hello.
I used the ubuntu restore from AdamOutler. It worked like a charm to restore my borked Nook tablet. But for what ever reason it picked up a serial number that doesnt match the one that is registered to me and my tablet. Is there a adb command or something along those lines that i can restore my serial with? I changed the serials via root explorer but it always defaults back to the wrong serial. I know it must be something I did along the line of trying to fix it but it bothers me it doesnt match to my account. It wont let me register it again. Thank you for any help...
Click to expand...
Click to collapse
Since no one has answered I'll give it a try. The place I find the serial number is
/rom/devconf/SerialNumber it is 16 bytes and permissions are r--r----- or
440. Since you didn't say where you were making the change this may not help.
also for info you will find /system/xbin/setserial hope this limited info may help.
Good luck!
Forgot something. I believe you can register multiple devices with google and use the same account. Mine is registered two different ways. I am registered as
Bn Nook Tablet
and
Barnes&Noble BNTV250
both are the same unit just different builds.
I'm glad im not the only one that this happen to there nook.
i sent Adam a PM last week about it and he told me that he will be making an app for that so let's hope he didn't forget.
In the mean time any help will be greatly appreciated.
Hello again,
I found two places where the serial is stored both in the rom folder. One is the "Serialnumber" file and the other is label "deviceID". Changing both will not outlast a system reset. There must be a hidden backup file where this number is stored also.
markbird1 said:
Hello again,
I found two places where the serial is stored both in the rom folder. One is the "Serialnumber" file and the other is label "deviceID". Changing both will not outlast a system reset. There must be a hidden backup file where this number is stored also.
Click to expand...
Click to collapse
Interesting!
serial number change
The same thing happened to me. Please prod Adam to make that app or post any other solution that is found!
no news yet =/
Any solution yet ??
sailerph said:
Any solution yet ??
Click to expand...
Click to collapse
Try this link.
http://forum.xda-developers.com/showthread.php?t=1610069&highlight=serial
Good Luck!
tobdaryl said:
Try this link.
http://forum.xda-developers.com/showthread.php?t=1610069&highlight=serial
Good Luck!
Click to expand...
Click to collapse
I tried this method, but for some reason, I kept getting errors when trying to write from the unmounted SD card with DD, and, when trying with the device mounted, it would continue to write the .img file, (3-4 gig before I realized why it was taking so long.)
However, once I had the "ROM" sd card, and modified the files as necessary, I booted a CM7 SD card with my nook, installed one of the many "Root" filesystem managers, and replaced the edited DeviceID and SerialNumber files on my Nook's internal ROM.
This worked -- to an extent. B&N's default software now shows my proper Serial #, however, my B&N will still not pass registration.
I'm thinking that perhaps there's something more to the registration process, MAC address perhaps?
((UPDATE))
So, I took the plunge, cracked open the back of the nook, and found the MAC address on a sticker inside, handy that, eh?
However - This still will not pass B&N registration, so there's something that I've managed to mess up beyond that. I'm guessing this particular NT will never be able to use stock ROM's again. Oh, well, not a huge loss IMHO.
((END UPDATE))
I'm probably not going to poke at it further, as I dont acutally plan on using B&N's default software, I purchased my NT with the express intention of rooting. My only worry is warranty, however, I purchased the Best Buy "Accidental Damage" warrenty, so, if it does break. I just need to "drop" it so the screen cracks! LOL!
Nook Tablet Serial Number Restore & MAC Address restore
Thanks to all for the help with repartitioning/rebuilding Nook Tablet. Here's my input to help others on their way.
Serial Number and MAC Address restore.
You will need to install a hex editor to your laptop - one like "Free Hex Editor Neo".
We will find every instance of the serial Number and of the Mac Address in Partition 5 and change them to the correct values.
This also will automatically correct the DeviceID.
Write down your incorrect values and your correct values for Serial Number and MAC Address
Now we will modify an existing rom image for Partition 5
-if you have an existing image for Partition 5 in your laptop make a copy of it and put it in C:/download.
. -skip to step 9
-otherwise do the following:
Get the image for partition 5 from your Nook Tablet and copy it to your laptop.
1. adb shell
2. ~# mount sdcard
3. ~# dd if=/dev/block/mmcblk0p5 of=/sdcard/blk/mmcblk0p5.img
..-this copied the rom image to the sd card. It is about 48MB.
4. ~# exit
5. cd /
6. adb pull /sdcard/blk/mmcblk0p5.img /download/mmcblk0p5.img
..-this copies the image file from the SD card to your laptop. Places it in the C:/download subdirectory.
7. adb shell
8. rm /sdcard/blk/mmcblk0p5.img
..-this deletes the image file from the SD card
Edit the image file
9. Open Free Hex Editor Neo
.......-file, open file, C:\download\mmcblk0p5.img
10. Search for the old incorrect value for the serial number
11. click on the right side of the hex editor (on the ansi script)
.......-do a replace
...............-type in correct serial number
...............-replace every instance of the serial number in the file
12. Do the same operation to find/replace the MAC address
13. save the file. remove the “.img” file extension from it.
14. put it on the sd card in the root directory (either push it or place the SD card in your laptop)
15. adb shell
16. ~# mount sdcard
17. ~# dd if=/sdcard/mmcblk0p5 of=/dev/block/mmcblk0p5
18. ~# exit
19. remove sdcard, reboot internal.
Cheers.
markbird1 said:
Hello.
I used the ubuntu restore from AdamOutler. It worked like a charm to restore my borked Nook tablet. But for what ever reason it picked up a serial number that doesnt match the one that is registered to me and my tablet. Is there a adb command or something along those lines that i can restore my serial with? I changed the serials via root explorer but it always defaults back to the wrong serial. I know it must be something I did along the line of trying to fix it but it bothers me it doesnt match to my account. It wont let me register it again. Thank you for any help...
Click to expand...
Click to collapse
Do you have the serial number, and mac address that it changed yours to?
Hi!
How do I change the WiFi mac address of an Amaze phone?
I got two Amaze phones that I put Sport's CM10.1 on them.
Problem is both have the same (well known!) mac address. Seems like either CM10.1 picks a fixes address, or perhaps the process or rooting it cause the mac address to be reset?
I tried searching for ways to change it. Some posts require using busybox, however, that's temporary.
Some posts refer to change it in an nvram.txt data somewhere in /data/misc/ (or similar, don't have it handy), however, I do not have that file in any of the phones. I do not know what format I would have to put it in if I were to venture to do it. I found one example of a different phone and it was a rather complex file with all sorts of settings, which makes me cautious about even trying something and possibly breaking the format of the nvram on the phone.
Thanks!
[/COLOR]
ihama said:
Hi!
How do I change the WiFi mac address of an Amaze phone?
I got two Amaze phones that I put Sport's CM10.1 on them.
Problem is both have the same (well known!) mac address. Seems like either CM10.1 picks a fixes address, or perhaps the process or rooting it cause the mac address to be reset?
I tried searching for ways to change it. Some posts require using busybox, however, that's temporary.
Some posts refer to change it in an nvram.txt data somewhere in /data/misc/ (or similar, don't have it handy), however, I do not have that file in any of the phones. I do not know what format I would have to put it in if I were to venture to do it. I found one example of a different phone and it was a rather complex file with all sorts of settings, which makes me cautious about even trying something and possibly breaking the format of the nvram on the phone.
Thanks!
Click to expand...
Click to collapse
flash any sense 4.x rom on any of your device,i heard that sense 4.x roms change the mac adress of your device,dont knw what is the reason though...read it alnog yor research and readings...
http://forum.xda-developers.com/showthread.php?t=2201216
hatim_rajput said:
[/COLOR]
flash any sense 4.x rom on any of your device,i heard that sense 4.x roms change the mac adress of your device,dont knw what is the reason though...read it alnog yor research and readings...
http://forum.xda-developers.com/showthread.php?t=2201216
Click to expand...
Click to collapse
Thanks for the reply, however, this is not a great solution, as it's rather invasive. I'm also finding that this image I am on is stable and yields good battery and it has the latest 4.2.2, so I am trying to avoid major changes like a rom from a different device might be (I'm new to this too ..).
Here is what I have tried:
brute-force search on the zip file that Sport posted
brute-force search on the phone itself via a root shell
searching various other files and forums
the brute-force search on the phone found the mac address. This is what i did:
find -exec grep -iH '00:d2:8b:43:9f:fd' '{}' \;
which yielded:
/sys/devices/platform/msm_sdcc.4/mmc_host/mmc3/mmc3:0001/mmc3:0001:2/wl12xx/ieee80211/phy1/macaddress:00:d2:8b:43:9f:fd
/sys/devices/platform/msm_sdcc.4/mmc_host/mmc3/mmc3:0001/mmc3:0001:2/wl12xx/ieee80211/phy1/addresses:00:d2:8b:43:9f:fd
/sys/devices/platform/msm_sdcc.4/mmc_host/mmc3/mmc3:0001/mmc3:0001:2/wl12xx/net/wlan0/address:00:d2:8b:43:9f:fd
However these files are in a "/proc/-like" mounted device that is read-only. These files look like status files from the OS, so even if I had been able to change them, it looks like the changes would vanish after reboot, and even if that would not be the case, it would not have changed anything.
Any ideas?
This is the solution for permanently changing the MAC of the WiFi in the Amaze (ruby) phone:
su -
mount -o remount -o rw /system
cd /system/etc/firmware/ti-connectivity
calibrator set nvs_mac wl1271-nvs.bin 00:d2:8b:XX:YY:ZZ
cd /
mount -o remount -o ro /system
change the XX YY ZZ to any other (hex) numbers as you please.
(The assumption is that you are connected with adb shell)
I'm looking for some help verifying a few bits of information before I take a leap and risk bricking my phone. I need to change my bluetooth address. With any luck back to my original hardware address. I do have the original address, as "btnvtool -p" outputs a different address than is reported in 'about phone' -> 'status'. I problem is that both my wife and I have the same phone with the same ROM history, and now we both have the same improper mac address.
By way of links provided by another helpful users I have partial information in Russian. http://4pda.ru/forum/index.php?showtopic=420801&st=6840#entry28414922 post 6853. I think I understand what to do via google translate and my partial understanding of how this works. The post points me to the /misc partition but I can't find any useful information about the partition for this phone that would backup the claims. Also the specific location that the post references, offset 4000, contains a string "ANDROID-BOOT!". While "ANDROI" is hex of 414E44524F49 which matches my incorrect mac address, the fact that it says "BOOT" makes me worry about changing it.
I'm hoping someone can help me any verify that this string isn't part of the boot process, or that the /misc partition isn't required to boot recovery. I feel fairly confident that I could create a flashable zip to restore a backup of this partition if needed. Below is my cleaned translation of the Russian post. If anyone with an e970 and a proper BT address could complete the first half, dd the partition to a file and check out the contents in a hex editor, I would feel much better about doing the rest.
Code:
Hello, using this method you can restore your original Bluetooth addresses. The active mac address is in raw MISC partition at hex offset 4000, it is not spelled out or anything.
perform the following (root is required)
ADB shell
su
dd if=/dev/block/platform/msm_sdcc.1/by-name/misc of=/sdcard/misc.img
and get at the file on the SD card and in a HEX editor zero the MAC address starting at hex offset 4000, save the file. Save the changed file to your phone:
su
dd if=/sdcard/misc.img of=/dev/block/platform/msm_sdcc.1/by-name/misc
reboot
After rebooting the details in the “About Phone” should show the real MAC BT.
----------
So I found a little corroborating evidence to this post. I found this post about the LS970(Sprint LGOG) stating that "All rooted LGOG Bluetooth MAC addresses are 41:4E:44:52:4F:49". Reading the thread a bit, I found a link to a "BT MAC FIX" script found with this kernel.
Looking at what the file does, it uses btnvtool to get the real mac and writes it to byte 16384 ( hex 4000 ) of the misc partition. Seeing as this file has people confirming it works, I took the leap. It worked. Problem solved.
Sound like to me this is a problem as old as unlocking with freegee. Could be wrong but that seems like the common denominator to me from the posts I was reading. And yes for the record, now the dump of the misc partition now reads "******D-BOOT!" *s to hide my real mac.
***Warning, 2015-01-12, This Fix as is doesn't work and causes problems with CM12 on the E970. Will post in thread with details.
I have the exact same issue with mine and my wife's phone. I tried this, and it seems like it should work, but after I reboot my phone, the contents of misc revert to the original (ANDROID...). Any thoughts?
mindstormsguy said:
I have the exact same issue with mine and my wife's phone. I tried this, and it seems like it should work, but after I reboot my phone, the contents of misc revert to the original (ANDROID...). Any thoughts?
Click to expand...
Click to collapse
I believe everyone that used freegee to root/unlock have the corrupted BTmac address. I also believe that it is only an issue when two of these devices try to use BT in close proximity, but you never know what device the person beside you will have.
I had not done anything about my BT until just now. The .zip just puts a script in the userinit.d folder. The script is run every boot. I do not recall what my BTmac address was, but the script does change it from the default.
I deleted the script and rebooted. My BTmac address reverted back to the default. I restored the script and my BTmac address changed back. This shows that the change is not permanent, and the script needs to be run every boot.
Did you flash the .zip, or just extract and run the script?
I've recently upgraded my E970 to CM12 nightly. Just like previous roms the BT Mac address is corrupted and results in my pairing being invalid. My mac address currently reports in "About Phone" as 00:00:00:00:5A:AD. Clearly this is incorrect.
When I tried to install this fix. The init.d script was placed properly, but did not repair the mac address as it did previously. This might be a one off case, but after the script was installed, my phone started acting funny, over heated, and completely drained the battery. The charger I regularly use, an iPad 2.1 amp failed to charge the phone. All it would do was turn on the red notification light solid. I was still able to use the computer usb ports to enter download mode, and start entering the off-charge mode. This port didn't give enough power to fully enter the off-charging mode. The phone made it to the first icon and then shut off, no progress was made.
I needed to switch to a lower output charger before I could gain charge to 5% and boot. As the OS booted it reported 0% charge. I was able to enter airplane mode and reboot. After the reboot the phone functioned well enough to use Solid Explorer to delete the script file from /data/local/userinit.d . After deleting the file my phone was back to functional with the bad mac address.
As I find info I will post it here.
2015-01-13 Update -----
Running the steps of the script file manually, results in a error "dd: stdout: Illegal seek" . Trying to read (if) instead of write (of), I get the same Illegal seek. Might this be part of a new protection with lollipop? I tried editing a dump of the partition as I suggested originally and writing the whole 16mb back. This completes without error, but when I read the partition again the modification was not saved.
Either way my BT Mac address with CM12 doesn't match the expected 41:4E:44:52:4F:49 to match the ANDROID from the file dump, so where is the OS picking up the new address?
Still works for CM11
I noticed my phone and my wifes also had the same bluetooth address. This was messing up my car link. I ran the script and now it shows that I have a different address. I will keep an eye out and make sure nothing else gets messed up. Thanks. I was looking for a fix for some time....
Hello everybody i am not usually posting because most of my problems are always solved in already existing threads.
But in this case:
i have an anonymous TV dongle.
model: gxt_dongle_3188
android version: 4.4.2
rooted: with Kingo Root
Busybox is installed
I need to change my wifi-mac address from 54:e4:bd:9f:bd96 to 00:22:f4:f0:12:88, i know that the first 3 sets are vendor's indicator but i dont care for the possible conflicts that the change may create.
I started trying to use all the mac changing apps from playstore and i had any result, then i used terminal as SU with busybox and in my iplink show list i had not eth0, only wlan0 and p2p0 that looks like having MAC addresses.
Then i used ifconfig wlan0 hw ether [my mac] command and had no errors but in the status option i could not find any changes
I used also similar command sequences i found online.
also i found that i dont have the "efs" folder in my folder system and as i show in many tutorials this folder contains files about mac addresses.
Had anyone a problem like this so he/she can give me some help?
thank you in advance .