[Q] ONE X Wlan Bug topic

Hi guys ,
Yesterday my One X arrived which i bhought from eBay !
The seller said it has still a warranty till august 2014 , (he sent me a bill with the invoice number etc.)
then i wanted to root the phone , unlocked it via htcdev and get Android Revolution HD on it.
Now i noticed that my Phone is one of the first with the wlan antenna bug.
So now i want to go Back 2 Stock and let the Phone repair or something in a Vodafone store , do u think they will restore it despite the relocked bootloader ?
and how i go back to stock ? (or which is the best variant)

[Q] SM-N9005 WLAN Speed topic

Hello,
i'm runninig the KK-Version of the Note 8 Rom. I have a 100Mbps Internet Connection at home. With my laptop i get about 90Mbps.
With my Note 3 only about 32 Mbps. Do you have any soloutions, that i get the same connection speed as my laptop?
Thanks for any help.

[Q] WLAN Racing Game for android topic

I am looking for Local Multiplayer Racing games for android. I already know about Asphalt And Real Racing. But, my device is unable to run these games. I tried Slingshot Racing and Mini motor Racing, but the game view is not as like Asphalt or Real Racing(its like satellite view, you know, looking in the race track from the sky !!!) I read about Drift Mania Street Outlaw& Championship1,2 and installed them. All of them claim that they have Local Multyplayer mood. But, I saw only "Online" option in the Multiplayer, no "Local wifi" or somthing simillar to WLAN.

My question no-1 is, am I missing any settings or anything in "Drift Mania"? Or, its just online multiplayer game?
Quesiton no-2, is there any "Racing" games out there alike Asphalt or Real Racing which have WLAN mood? (Dont suggest Slingshot Racing or Mini motor Racing). If there is any game fulfilling my demand, please name it. I really need it badly.

Thanks in advance.

And, sorry for my bad English.