Wireless problem with laptop

[Loop333]

Hi everybody. I'm having troubles with my laptop wifi driver.

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Network controller: Realtek Semiconductor Co., Ltd. ---> RTL8723BE <---

The ethernet port works fine, but I cannot detect any wifi signal from the Network Manager. This seems to be a common problem with this driver:

https://forums.lenovo.com/t5/Linux-Disc ... true#M6275

http://askubuntu.com/questions/457341/w ... -rtl8723be

I've found that Kernel (3.15+) supports this driver:

rtl8723be is a PCI-E driver for RTL8723BE devices (3.15+).

My current Kernel version is 3.10:

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== BEGIN rpm -qa kernel\* | sort ==
kernel-3.10.0-123.6.3.el7.x86_64
kernel-3.10.0-123.el7.x86_64
kernel-devel-3.10.0-123.6.3.el7.x86_64
kernel-devel-3.10.0-123.el7.x86_64
kernel-headers-3.10.0-123.6.3.el7.x86_64
kernel-ml-3.16.0-1.el7.elrepo.x86_64
kernel-tools-3.10.0-123.6.3.el7.x86_64
kernel-tools-libs-3.10.0-123.6.3.el7.x86_64
== END   rpm -qa kernel\* | sort ==

I've installed Kernel 3.16 from elrepo (http://elrepo.org/tiki/kernel-ml). Howewer, I'm not able to access to my CentOS desktop. This seems normal, kernel configures the boot loader to boot the new version but it does not boot the new kernel by default (correct me if I'm wrong). An error message appears in the screen telling that I need to load kernel first (so I boot the system from Kernel 3.10). Being a newbie, this is beyond my skills. I need your help.

Thanks in advance =]

PS: The Wifi works fine with Windows 8

[Loop333]

I've not been able to use this laptop these last weeks due to my wireless problems. All I need to do is to find the way to boot from the new kernel (3.16 this time, installed from elrepo). The problem still remains, the system is refusing to boot from the new kernel, a GRUB error appears: "you need to load the kernel first". I'll really appreciate any help with this problem.

Thanks in advance.