I just up loaded the update to 4.3 on to my Galaxy s3 and now the wifi is not working properly. Keeps saying wifi is unstable or slow and switches to data plan when all was working properly before the up date. Also the battery is needing to be recharged way too soon. Before I could go a day and half now half a day before needing to recharge. Also the internet use is unstable and is locking up will drop or just freeze up. I'm glad I did not up date my wife's s3. I see that this is a problem across the board. When will a fix be there for us to up load?