I find some suggest to fix this problem but it not work.
I change Permission of wifi folder and wp_supplicant.conf
But after reboot it become
Some one help me please!
why would you change wifi permissions to that?
How they are after reboot is correct - the file and folder should be rwxrwxrwx - anything else you are risking it saying error when you turn on wifi
because you are seeing wifi networks its unlikely you are using the wrong wifi driver as that would mean it would just say scanning and not show wifi networks
I assume you can select a wifi network and enter in the key
I will also assume that you are actually entering the correct wifi key
I will alsso assume that it gets stuck obtaining ip address
Therefore you have six choices
1 - To reflah the kernel
2 - To change kernels and see if that makes any difference
3 - To set a static ip address to see if its a dhcp problem (you can get ip address details from the router settings or a computer connected to the network)
4 - Remove droidwall if you have it
5 - Change the permissions of system/etc/dhcpcd/dhcp-run-hooks to rwxrwxrwx (turn wifi off then back on again)
6 - Delete the file data/misc/dhcp/dhcp_list (then restart phone)
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