I bought Broadcom 4322 mini-pci (half) wifi module on ebay. Previously I checked "compatibility" list for my laptop. I've downloaded "HP Pavilion dv7 Entertainment PC
Maintenance and Service Guide". And found this table:
But my laptop number is 4325 and it isn't fits to "5000 through 5099" and "4000 through 4299". But that is the document I've downloaded from official page. So the best from this list was Broadcom 4322. I got it very fast from China - 2 weeks. Module costs 8$ and delivery for 2$.
Now installing to laptop. That's pretty easy. But laptop says ERROR. Remove incompatible wifi module. That's because HP laptops have "whitelist" for compatible parts, and Broadcom 4322 isn't in this whitelist. All we need now is to download and install "patched" BIOS which will remove that "limits" for us. But it can be risky. My BIOS named "F.29" and file has name "sp55299.exe". I looked in google "bios f.29 whitelist" and found patched version named "sp55299_NWL_ByCamiloml.exe". After 10 minutes of thinking about risk to make a brick from my laptop I patched my BIOS. Laptop rebooted and works. I changed wifi card and it WORKS! Laptop shows "ERROR message" on startup for 1 second but still booting windows 8.1. And all I can say - speed of WiFi internet is boosted up.
UPDATE!
My laptop is a "brick" now. I turned on it yesterday's evening and not plugged AC adapter. When laptop shuts down because of empty battery - it turn on but all I can see is a BLACK SCREEN. OS don't boot. Be careful. I'm sad now.
UPDATE ONE MORE!
I turned my laptop to life! Thanks to this manual:
http://forums.mydigitallife.info/threads/35272-HP-Insyde-BIOS-recovery-steps
Thanks those guy!
Previously I removed BIOS battery for a 10 minutes and changed WiFi card back to Braodcom 4313. And after USB stick was ready to USE, I got this image and was very happy:
IT'S ALIIVEEEEEEEE!!! :D |