[SOLVED] Changing MAC Address: Ideos U8150-D - Android Q&A, Help & Troubleshooting

SOLVED SOLVED SOLVED SOLVED
Hi there,
After flashing new ROMS to my 3 Huawei Ideos u8150 devices (gingerman v7) I found that the ips that were dynamically obtained and the MAC addresses were all identical. This means that two of the devices must be turned off for the third to be able to access the internet. So I was wondering how to change this so that the three devices can work independently?
Cheers Qwertyuiop23
EDIT:: Yup I narrowed the problem to conflicting MAC adresses and have the original mac addresses found also. Now I am trying edit the nvram.txt file with these new addresses. However, I am trouble moving the file to the SD card has I do not read write permissions tot he sd card and when I try to mount it the file cannot be found in the procs/mnt folder.
EDIT 2: Now solved see last post for solution.

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Ok I solved the problem and now all three devices are working correctly.
The problem was that when I flashed the gingerman v7 to all 3 devices I flashed the same MAC Address to them all. This meant that if two of the devices were trying to access the market/internet at any one time they connection would fail as the router could not distinguish between the 2 devices (and therefore assign different IP addresses). So obviously this was the problem to be solved.
These are the steps that I took to sole the problem (obviously assumes you have root and busybox):
1. Turn WIFI OFF!! Open up terminal
2. Type
Code:
su
3. Type
Code:
mount -o remount,rw /system
. This allows you to read and write in the system directory.
4. Type
Code:
mount -o remount,rw /mnt/sdcard
. This part caused me a lot of trouble as I at first couldn't find the sdcard mount as in gingerbread it has CHANGED from /sdcard to /mnt/sdcard (I think).
5. Type
Code:
busybox cp /system/etc/firmware/nvram.txt /system
. This is making a backup of the file, just in case.
6. Type
Code:
busybox cp /system/nvram.txt /mnt/sdcard
7. Exit the terminal and connect the phone to the computer using USB cable then allow USB storage.
8. Open up the nvram.txt file on the sdcard on the computer USING NOTEPAD++ (VERY IMPORTANT TO DO THIS as the regular notepad stuffs up the encoding)
9. Edit the line the has mcaddr = to the MAC address needed. Make sure it has the same format as the current one, ie xx:xx:xx:xx:xx:xx where the x's represent numbers/letters.
10. Now remove the USB cable
11. Open terminal backup
12. Type
Code:
su
13. Repeat steps 3 and 4.
14. Type
Code:
busybox mv /mnt/sdcard/nvram.txt /system/etc/firmware
15. Exit terminal and turn WIFI on.
16. Your MAC adress will now have changed. To check go to Wifi settings -> (press options button) -> advanced and check MAC address.
Troubleshooting:
- If you can't read/write to sdcard MAKE SURE THERE IS AN SDCARD!!!!!!! (I did this)
- For the Huawei Ideos u8150-D the MAC Address is under the battery
- I know there are a lot of steps but that is only because I have tried to break them down as much as possible so they are easy to follow.
And that's how I solved my problem. I also had problems flashing clockworkmod so if you have problems give us a shout and I'll help you out.
Cheers
Qwertyuiop23