Thinkpads Forum

I would love to upgrade from Intel Wireless-N 1000 to a AC wireless standard like the Intel® Dual Band Wireless-AC 7260 802.11ac, dual-band, 2x2 http://www.intel.com/content/www/us/en/ ... tooth.html

but I'm aware of it will demand modding the bios white list.
Don't understand that Lenovo have ad at least one AC wifi adapter with an FRU.

My question is can I use the Intel Centrino Ultimate-N 6300 (60Y3193) that I think is the second best option to the new AC wifi?
I can't find it under the part list. Or do one of you have an better solution, or experience with AC wifi and the correct bios mod?

Thanks

If you get the Intel 6300, you have to make sure it also has a Lenovo FRU number on the label for it to work with the BIOS whitelist. The 6300 is also a 3x3 card, which means it can provide even better performance when connected to a 3x3 router (usually the routers with 3 antennas). I upgraded 3 of my ThinkPads to the Intel 3x3 (1 5300 and 2 6300's) in my signature below.

Like you said, the 6300 is not listed as a choice for the L420, so I cannot be absolute certain that the 6300 card will work in the L420. The 6300 cards with Lenovo FRU on the label typically run from $30-40 USD on ebay, so you wouldn't be out a ton of money if it turned out that it doesn't work.

The documentation does list the Intel 6205 (60Y3253) dual band card, which is an improvement over the Intel 1000. Perhaps that would be a safer choice, like this one: http://www.ebay.com/itm/171183784863

Thank you for your excellent response. Yes we totally agree Intel 6205 would be a safe choice and it can be found at a very reasonable price with Lenovo FRU numnmer (thanks for your link)

But I'm just still not satisfied, soon all routers with AC wifi standard. So I think I'll try to test with an Intel Dual Band Wireless AC 7260th
I have a bios update the whitelist removed. If that does not work I have to accept Intel 6205th

Register and check on this forum for a Slic BIOS with Whitelist removed: http://forums.mydigitallife.info
See for L420 here: http://forums.mydigitallife.info/thread ... ts/page293
Ask there for a fresh link as the Sendspace file is gone.
Once installed, you can use ANY wifi card.