No picture on 360 with white dotted lines.

how many rings does it have. if it has one i got trick for u but if it has 3 it needs to b xclamped and reflowed

unplug all cords and reconnect them firmly should fix problem

This is likely due to Hardware Failure. Your GPU (Graphics Processing Unit) has likely overheated to the extent of artifacting which is when the device begins to have trouble rendering objects and images and crashes constantly. The only viable solution is to send it in if you still have warranty, Otherwise, you'll have to either buy a new Xbox 360 or send it in for repairs from microsoft.

Hope this helps.

-Gadorach

sounds like the graphics chip is on its way out might just be a cold solder joint normaly turns to 3 red lights when ppl mention this to me

check your game for deep scratches on the cd if there is none, then your best bet is shipping it back to microsoft or there is actually a company that fixes your 360 for a cheaper price. just google xbox 360 recall and if you look through the pages of signatures you will find an advertisement for 360 recalls go to that and call the #, i hope it works out for ya.

Hi i on u r screen white dotted vertical lines comming & if the no. is more than 6 the if the laptop is under warrenty then company will replace the LCD & if not under warrenty then to fix this issue u have to replace the LCD.

It willl need to be serviced. We can fix this for you. We are listed on this site for repairs.
www.videogamerepairservice.com

if its less than a year old phone Microsoft customer support.
if not it could be early signs of 3 red lights

right do the towel trick it works. wrap the 360 in 2 towels and leave it on for 15 mins. then go bk to your xbox un wrap it. put it near a window if possible ( i did and its working fine) due to it being near a window you will get no overheating and its well ventilated.

well then your tv is going out and you need a new tv