[Q] Root Access and MAC address - HD2 Android Q&A, Help & Troubleshooting and Genera

So, just NAND flashed my HD2 over to DFT's .2 release of Android. This gave me the infamous MAC address issue of 00:11:22:33:44:55. Now according to a long searched for forum post if you go to:
/system/etc/ find file calibration and open it as view in text editor
in first line you will see the mac address
put your desired mac address,save and exit.
Now, for this you need Root Explorer. So I downloaded and installed Root Explorer. However when I run it, the program tells me I haven't granted the program super user access. Exact text: " Root access could not be obtained because su failed with the following message: permission denied Make sure you granted root permission when requested by SuperUser. If you did then try re-rooting your device. Root explorer will not continue in non-root mode." When I check in super user the page is BLANK. No programs have even requested super user access for me to give permissions to. I'm at a loss, either the version of Android isn't rooted, or the app isn't requesting SU access like it should. Either way I can't fix the MAC address issue. So, does anyone have an idea on how to fix either Root Explorer not getting SU access or the MAC address issue that doesn't require me to edit that file?

Download a program called "Z4Root" and run a Permanent Root, about 15 seconds after "Rebooting..." appears, restart your phone and try Root Explorer again and Allow it SuperUser Permissions

Got that to work last night actually! Now I'm just waiting to see what file should actually be edited as the calibration file isn't in system/etc.

My friend got the same problem (he got MAC adress like 00:00:00:00:00:00). Now i'm trying to find "adress" file in /sys/devices/virtual/net/eth0/ but nothing..

Related

SU access thru terminal but not through GUI apps?

Specs: Droid, running Android 2.0.1, rooted
su works but apps still say I don't have root?
I'm an IT Professional not a newb, but not super great on Linux either.
I've followed the rooting steps, after updating manually to 2.0.1
The issue is, I can go: su using a term emulator on my phone and it says "access granted courtesy of magicandroidapps" (something like that). and I can do root things. But when I do anything that requires root and has a GUI I get errors and messages that I don't have root access
I can do things through the term emulator, but for some reason when I download apps that require root and try to use them it still says I don't have root access? What gives? I couldn't even rename a file in /etc/bluez using ROOT EXPLORER (a file manager).
It's like root works on term emulator but not through GUI apps? Am I missing something?
Edit/Delete Message
Disregard, problem solved
Apparently the latest droid root technique works. For some reason the original technique didn't seem to work. This is what worked for me...
http://areacellphone.com/2009/12/motorola-droid-rooted-howto-root-droid/
Much simpler too. No adb stuff.

root explorer problem switching mount ro/rw

hey,
I am trying to do the WPA suplicant file swap but I cannot get swap to stick. I paste the new file over the original but nothing changes. The file still reads Oct 14th when the new one should read nov 28.
The problem seems to be the inability to change mount r/o to mount r/w/. I can only click the Mount rab when I am in the first folder. As soon as I click on the System folder the Mount button greys out and does nothing.
When I try to delete the original WPA file it comes back as soon as I leave the folder, if I copy the new one over the old one the old one remains.
any ideas?
btw: sprint Tab
Exact same problem here, Root Explorer had served me well on other Android devices but this time, no go. There must be some extra protection on the tab, not sure how to defeat it...
I presume you are rooted, and the Superuser app shows that Root Explorer has been granted root privileges?
Regards,
Dave
^ Thanks for for tip.
I have been experiencing the same problems with my Captivate...couldn't get Root Explorer to mount as R/W. Took a look at Superuser and sure enough Root Explorer was not being granted the permissions. So went into recovery and re-rooted and after reboot it was good to go...Root Explorer was listed as one of the apps in Superuser that had been granted permissions and I was able to mount as R/W.
I know that I have a Captivate and not a Galaxy Tab, but this is subject related and just wanted to share my learning experience and appreciation for the help from others even when searching outside of my device forum.

Need help. Need temp root/SU access.

So I have tried searching some and my case might be a little different so I thought I would just ask.
I have a G2 that i am trying to retrieve data from. Specifically the SMS database file. I have found that in android, the sms messages are not kept on the sim car or the SD, its kept in a .db file in the internal memory. Unfortunately these files are restricted without root/su access.
From what I have read, the only way to root right now is to downgrade the OS to a previous version to obtain root. Unfortunately, doing that would erase the .db file and would be counter productive.
I have tried using ADB to obtain root/su access to extract a copy of the DB to no avail. I tried visionary and z4 to temp root and neither seemed to allow me to su in the terminal.
Again, all I need is SU access for a short ammt of time to copy out a file in a section that is restricted. Does anyone know any way to do this? Though backups? copying the whole file system to my cpu hdd? Temp root program that does work?
Any ideas?
Go to this guide
Follow the 'Gaining Temp-Root' and '
Temp-Rooting to Backup' sections.
-Nipqer
Why do you need su to copy a file from /system?

[Solved] 2+ Kindle Fires on Same Wifi Router Disrupt Each Other

Me and my best friend both have Kindle Fires now. I rooted & flashed the latest MIUI onto both of them successfully over the past week, so we're running the latest version available. What we've found is that when we both try to attach to his wireless router, they seem to disrupt each other or confused the router and eventually our wifi goes bye-bye on our Kindles. When just one of us is trying to attach to his router, it goes through fine & seems to stay connected well without any issue.
Can anyone offer any recommendations on how to perhaps customize the wifi connection on either the Fire or the wifi router to try and resolve this issue?
Thanks much for your help in advance! Please ask any questions if I left out any details that could help : ]
Does MIUI have the MAC address problem? That'd be the first place I'd check. THen I'd check the router and see exactly what they're trying to do. My thoughts:
Either they have the same MAC, same name, or are vying for the same IP.
http://forum.xda-developers.com/showthread.php?t=1406845
Thanks for the feedback, guys! And thank for that related thread link! I reviewed that post and I have to admit, I'm a lil lost with where to start or what to do with that. I have a feeling both devices may be running the same MAC address, but I'm in the process of confirming that today. I also tried forcing a static IP on the Fire when connecting, but that didn't seem to resolve the problem.
Anyone have any, dare I say, more simple instructions for how I might go about altering my devices MAC address with MIUI? I'm not sure that the information in that post is fully applicable to the MIUI rom, so I'm hesitant to begin trying to give it a go, and plus, I might need something a little more noob-friendly... I could use a little more handle-holding with this, as I'm fairly fresh to rooting & flashing ROMs (but fairly computer literate).
look at post #24 in the linked thread - seems to be a easier solution
Oh, thanks! ... That does look much more manageable Now to just figure out where to get the file from the stock ROM and replace it. I did a backup of my stock stuff via TWRP prior to flashing MIUI, so does anyone know where I can locate this file from the stock amazon ROM after I've completed a backup of stock via TWRP?
I then assume that after locating the stock version of the file, that I would just replace the file in the root directory/system/bin right on the Kindle when it's attached to my PC via USB.
Yah.. I'm a noob, but trying! : \
Stock file I need to find: /system/bin/wlan_loader
there is one attached 2 or 3 posts after #24 - that should do it for your needs
Great! Thanks again!!!
This part of the post gets me a little lost. I assume I need to purchase & download Root Explorer ($3.99 in Market). As for performing the same thing this person did, I'm not quite sure how to go about doing that. One question I have is: Is Root Explorer absolutely necessary to perform this file replacement? It seems a little more involved than just simply replacing the file on the device while it is plugged in to my PC via USB.
I used root explorer, mounted as r/w, made a copy of the original JIC, overwrote the existing file within /system/bin and modified the permissions to appear as the original (rwxr-xr-x) rebooted leaving the system as r/w
Sure enough mac address is the same as when I was in 6.1 Kindle Fire OS.
Click to expand...
Click to collapse
Specifically, here are the things I'm not 100% clear on:
1) 'mounted as r/w' - I assume this means mounting as read/write; is this performed via Root Explorer?
2) 'made a copy of the original JIC' - I do not understand what is meant by 'JIC'
3) Can file permission changes as described above be performed in Root Explorer?
I greatly appreciate any insight! This appears to be the solution to my problem, not it's just a matter of execution on my part. Thanks, guys!
would use file explorer from the market - no cost and does the same
if you activate "root explorer" and "mount as root" in the settings all at the bottom
here the link:
https://market.android.com/details?id=com.estrongs.android.pop&feature=search_result#?t=W251bGwsMSwyLDEsImNvbS5lc3Ryb25ncy5hbmRyb2lkLnBvcCJd
1) 'mounted as r/w' - I assume this means mounting as read/write; is this performed via Root Explorer?
Click to expand...
Click to collapse
file explorer does this with the above settings automatically
2) 'made a copy of the original JIC' - I do not understand what is meant by 'JIC'
Click to expand...
Click to collapse
would mean he means the file to exchange
3) Can file permission changes as described above be performed in Root Explorer?
Click to expand...
Click to collapse
you can also do with file explorer - long tap on file - properties - change permission
Awesome - b63 - you're excellent
Ummmm... But I have to ask a really stupid question. I can't seem to find the /system directory on my Fire. I already had ES File Explorer... and I'm in it now, and I can only look around on my SD card it seems... Is the /system directory on the main internal storage of the device, or on the 'SD card?' Any help in finding this directory on my device would be appreciated! Sorry for the nooby questions n such
are the root settings made in the settings of es ?
then you can set your start directory to / somewhere in the settings
or simply go one directory up
when you are on / then you see the system directory like all the others (sdcard also)
OK... I'M SO CLOSE!
I got up to the root directory ( / ) and found the /system/bin directory... I have the new (well, old stock version) wlan_loader file from the linked thread that I downloaded on my Kindle on the SDCard ready to overwrite the existing file.
I definitely have Root Explorer on in ES File Explorer - it prompted me to allow and I did every time it asked. I then tried to copy the stock version of the file over my current version in /system/bin, but it said that the copy failed. I then went and tried to delete the existing file in /system/bin, but it said something like 'this file cannot be deleted' I'm not sure what is keeping the file locked. Do I need to modify the permissions of the file to be writable or something?
I hard-pressed on the file and tried to play around with it, but the only close option I have is 'Properties,' which didn't seem to allow me to change anything about the file though. So, I'm stuck : \ Help!?
OK, I got it! I didn't flip the 'Mount /, /system as writable option after switching on Root Explorer :\ My bad! But I was able to overlay the file now Let's test my MAC address now after rebooting.
looks promising ...
GET-R-DONE!
Yahoo! I got it!
I rebooted and everything seems to be functioning just fine - I'm connected to Wifi like normal, no big deal... AND, my MAC address is totally different than what it was before, so I think this did the trick!
Now to test it concurrently with my best friend's Kindle to ensure we can sit on the same network / router together. If it doesn't work, then I'll look to replace his wlan_loader file as well
Thanks for all your persistent assistance b63! I really appreciate it : ]
Was fun, and I learned a lot : ]
but take care if you change his one as well not to end up with the same mac again ...
and as allways - glad to help ...
please mark the subject of the topic (edit first post) with [Solved]

[ROOT] How to change MAC address of the OnePlus 5T

TL;DR: (story in second post)
As always, everything you do is at your own risk. I'm not responsible for your phone running away or any nuclear wars.
1. Edit the content of /persist/wlan_mac.bin using a file manager with root access (e.g. Solid Explorer) and change the first two lines to your desired MAC. It's a good idea to keep the first 3 bytes (the OUI), or bad things may happen.
2. Using a terminal emulator (e.g. Termux), execute the following commands:
Code:
su
chattr +i /persist/wlan_mac.bin
And done! You may have to switch airplane mode on and off.
I just got my new OnePlus 5T, and of course, one of the first things I want to do is to change my MAC address. I immediately spotted the file:
Code:
/persist/wlan_mac.bin
But even if I hadn't, tools like my overseer can find it automatically for us.
So the file is in a standard directory for Qualcomm chips. Using Solid Explorer (with root access), I modified the file's content to change the first two lines to my desired MAC address. I then switched airplane mode on and off and..... it didn't work? I quickly checked the file content again - it had reverted back. Ouch.
To combat this, I ran my overseer tool, but to no avail. There was no obvious file containing our MAC, only symlinks to this one. I then figured that maybe the system caches the value somewhere, and restores it when I toggle airplane mode (spoiler: it doesn't).
Well, the next attempt is mainstream: write-protect the file (set it to immutable). Using a terminal emulator (e.g. Termux), I executed:
Code:
su
chattr +i /persist/wlan_mac.bin
Airplane mode on and off... and it works! I restarted the phone and verified our success. Now, one last question burdened me. Was the system caching the MAC address? I removed the immutable attribute after the restart (so the new MAC would have been cached) and after I switched airplane mode -- original MAC was restored! So the system is doing something else to stop us.
Anyways, the current method works flawlessly and I shall refrain from digging any further just now.
Good luck!
i did whatever you mentioned here. after i set it to immutable, wifi wasn't working, mac address was 02:00:00:00:00:00 . i couldn't even edit the file because i set it to immutable. so i had to remove the immutation by using -i command. i still wanna know how to change my mac address. please help me out
aneesh12 said:
i did whatever you mentioned here. after i set it to immutable, wifi wasn't working, mac address was 02:00:00:00:00:00 . i couldn't even edit the file because i set it to immutable. so i had to remove the immutation by using -i command. i still wanna know how to change my mac address. please help me out
Click to expand...
Click to collapse
Hey,
You have to edit the file before you set the immutable flag, otherwise you'll get access denied just like you observed. Unless you messed up the content of the file I see no reason you are getting an invalid MAC. Make sure you preserve the first 3 bytes (the OUI) when setting a new MAC.
ViRb3 said:
Hey,
You have to edit the file before you set the immutable flag, otherwise you'll get access denied just like you observed. Unless you messed up the content of the file I see no reason you are getting an invalid MAC. Make sure you preserve the first 3 bytes (the OUI) when setting a new MAC.
Click to expand...
Click to collapse
is there no way to change the whole Mac address(including the OUI)?
aneesh12 said:
is there no way to change the whole Mac address(including the OUI)?
Click to expand...
Click to collapse
Sure you can, as long as you use a valid OUI. While using a made-up OUI won't affect you in the short-term, some (public) hotspots could block you.
okay, by your method, i could change the mac address but not completely, only the last 4 digits. i searched for woan_mac.bin . this is what i found. these files might be causing for you to reverting back to the original mac address after removing the immutation.
I tried to change mac address of my OP5T completely to my laptop's(lenovo thinkpad) mac address
system is reading that address in reverse fashion.
eg. i put Aa:Ba:Ccd:Ee:Ff at the first line of wlan_mac.bin then system is showing Ff:Eed:Cc:Bb:Aa as mac after airplan mod on/off

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