找到原因了硬件问题。。。

楼主，请问是哪里没焊好
我也遇到类似问题了，不知是不是硬件问题

insmod /usr/lib/r8723bs.ko

[ 121.627005] r8723bs: module is from the staging directory, the quality is unknown, you have been warned.
[ 121.643436] RTL8723BS: module init start
[ 121.647518] RTL8723BS: rtl8723bs v4.3.5.5_12290.20140916_BTCOEX20140507-4E40
[ 121.654562] RTL8723BS: rtl8723bs BT-Coex version = BTCOEX20140507-4E40
[ 121.662217] pnetdev = c290c800
[ 121.707152] RTL8723BS: rtw_ndev_init(wlan0)
[ 121.712879] RTL8723BS: module init ret =0

ifconfig wlan0 up

[ 136.167597] rtl8723bs: acquire FW from file:rtlwifi/rtl8723bs_nic.bin
[ 136.175284] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 136.182358] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 136.188864] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 136.195182] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 136.201996] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 136.208431] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 136.214741] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 136.221460] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 136.227850] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 136.234130] ====>_BlockWrite 92 i:19
[ 136.237742] ====>_WriteFW 177
[ 136.241884] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 136.248292] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 136.254576] ====>_BlockWrite 92 i:19
[ 136.258188] ====>_WriteFW 177
ifconfig: SIOCSIFFLAGS: Operation not permitted

ifconfig

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

ifconfig -a

eth0 Link encap:Ethernet HWaddr 02:02:1C:1A:FA:AB
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:38

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

usb0 Link encap:Ethernet HWaddr BA:CE:40:7E:3A:B0
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

wlan0 Link encap:Ethernet HWaddr 34:C3:D2:FB:F1:87
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

ifconfig wlan0 up

[ 183.062637] rtl8723bs: acquire FW from file:rtlwifi/rtl8723bs_nic.bin
[ 183.070281] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 183.077340] sunxi-mmc 1c10000.mmc: data error, sending stop command
[ 183.083664] ====>_BlockWrite 92 i:19
[ 183.087360] ====>_WriteFW 177
ifconfig: SIOCSIFFLAGS: Operation not permitted