I have a problem after updating my (tab 2 Wifi-3G 10.1) to Android 4.2.1. the tablet was working so well while and after updating, but after that I wake up and I had anoyning problem. the problem is when I click on the setting and try to turn on the wifi it shows only (turning wifi on...) and nothing happening. it feels like the wifi cannot start or establish the connenction, therefore no available wifi routers or Hotspots can be listed.
What happened the last two days, I tried to check if the tablet will work again after 2 weeks no charge and drain all the battery, SO IT REALLY WORKED BUT ONLY FOR 5 MIN and the problem came back again.
I downgrade to Android 4.0.4, tried fix apps like "FIX MY WIFI" it says (cannot enable the Wifi -unknown issue), also download the patch file " wpa_supplicant" and changed the wifi setting for standby policy to (allways on), all these steps did not really helped or fixed this problem.
XDA and google didnt really gave me the good answer and there are many android tablets with similer problem.
I hope someone knows about this problem and could share the solution