Copying over your wifi access points on Android
In case you have just bought a new phone, rooted it, and want to copy over all your wifi access points, there are a few options:
- Use the synchronisation to Google to have them keep a backup. Not my favourite, since it tends to restore just a bit too much (like all the apps you already removed before)
- Use a tool like Titanium Backup, but I’ve noticed that this doesn’t always work between phones. On the same one, sure.
- Manually copy them over. This is the way I usually go, and it works well.
First, copy the original files over: (do this for both phones)
- Plug your phone via USB, enable USB debugging in the setting (developer options) and make sure you have the Android SDK installed on your computer
-
Disable wifi on your phone. Really. Just do it. Open a shell to your phone, and copy the wpa_supplicant.conf file to your SD:
adb shell su cd /data/misc/wifi cp wpa_supplicant.conf /mnt/sdcard
- Pull the file to your computer somewhere:
adb pull /mnt/sdcard/wpa_supplicant.conf /tmp/wpa_supplicant.old
Repeat this for the new phone, but in the last step, you should pull it to/tmp/wpa_supplicant.new
.
Now, edit the /tmp/wpa_supplicant.old
file, and remove everything that doesn’t read
network={
ssid="mynetwork"
psk="mysupersecretkey"
key_mgmt=WPA-PSK
priority=1
}
network={
ssid="myotherfabnetwork"
key_mgmt=NONE
}
Next, we want to add this to the new file. Easy peasy: cat /tmp/wpa_supplicant.old >> /tmp/wpa_supplicant.new
.
The last thing to do is put the new file on the new phone, and reset it’s permissions:
adb push /tmp/wpa_supplicant.new /mnt/sdcard/wpa_supplicant.conf
adb shell
su
cd /data/misc/wifi
cp wpa_supplicant.conf wpa_supplicant.conf.backup
mv /mnt/sdcard/wpa_supplicant.conf .
chown system.wifi wpa_supplicant.conf
And you’re good to go. Rebooting your phone might not be necessary, but it’s recommended.
Comments