Anybody exchanged their phone with their carrier since the JB update?

[Galaxynote_guy]

I'm losing the will to live

Like many, my phone has gone all spastic since the JB upgrade and despite trying everything that I can find on the subject to sort it out, it still hangs like a bitch, sometimes freezing for 60 seconds or so while it does whatever it is doing. It is almost unuseable, I press the screen and have to wait while it decides what to do. I'm left standing there wondering if it's processing or whether it's missed the demand. Sometimes I press again and yes, you've guessed it, it opens twice.
Anyway. I was considering sending it back to EE so that they can send me a replacement. The question is this.
Has anyone done this yet and did it help?
You may recall, I recently changed my phone due to a charging issue and the handset I received as a replacement was not brand new and had ICS loaded. Consequently, as I was going through the config stages, I updated the software.
Is it possible that it is just the phone that is the problem. i.e it's probably an old refurb and the guys that are running JB successfully have got "newer" GT-N7000's
OR will I get a new handset and within a few days the problem will re occour
I hope that makes sense

 

[Galaxynote_guy]

I changed my handset... it was fine for 3 days. Now it is exactly how it was. It was a futile exercise....... The GT-N7000 through Orange.... cannot handle 4.1.2
End of chat. Before anyone says anything along the lines of "Turn this off, turn that off" etc. By having to do that means it doesn't work.
Time for a new phone I think.....

 

[Galaxynote_guy]

I just moved my apps from my SD card over to my phone and removed the SD card. Rebooted and for now it's flying...... If that's all it is I'll be amazed. It might just be the fault of a 12month old SD card. Maybe it's a class 4 or something.... I'll let you know how I get on