Lagging/slow

[RobbinB85]

Due to lack of help after my first message here, I went to the store and had my phone exchanged. I had not come longer than to the car when I wrapped up my new Better phone, and after 29 seconds I see that there are a BIG chunk of something just behind the lens protection glass. Went to store again, awkward. But i got a third one..

Now, I have problem with microlagging and sometimes bigger ones. Like when i surf around in market place, and in contacts. And when i draw my finger in the contacts on this A-Z bar to the right, it was 100% flow on the first one, the second one i dont know, didnt even start it. And with this one i kinda laggs..
My first was 100% flow, in everything. But this one laggs here and there..

I also having problem coming up to speed with wifi, i goes around 2mbit for a while and BOOM up to 50mbit, just like that, and after that it works ok for like 5 min, and after that back to "what is normal now", not normal.

[Uliwooly]

Re-install the latest update with SUS

Update Service (SUS)

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[Cartagenaphoto]

Mine also has dust behind the lens ;-(

[Sam]

For something of a hardware nature such as an object behind the camera lens, I would have to advise you to contact your local Xperia Care team so that they may assist in arranging the repair of your device.

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[biistu]

I'm having a slight delay (compared to opening apps etc) when pressing home and "open apps" buttons. I wonder if this is normal or should i go ahead and reset the phone with SUS?

[RobbinB85]

The dust/lens problem is solved, as i wrote, i got the unit exchanged, only owned the unit for a total of 30min.

I will test the reset after my vacation, will be home 31 may.

[RobbinB85]

A was so tired of the micro lagging so I did re reinstall today. No difference, if I swipe back and forth on the homescreen i can see that the lagging is coming in 5 second spaces. So its lagging every 5 seconds and is fine in between..
This is the 3rd phone and all have been faulty, what the **bleep** is happening? I dont know what to do?
I thought i was buying a premium phone.