Hi, I've owned my Xperia U locked to Fido for over a year and been quite happy with it. Very recently, in the last couple months, I have noticed that the phone will lose the mobile data connection. I only notice this when running an app (Facebook, Gmail, Browser) that needs an Internet connection, it will then report No Data Connection. However, everything looks fine from the phone's side: the mobile data indicator is on, I have strong signal etc. The only way around this is to reboot the phone, which is very annoying. This never ever happened until recently. I am using a custom Launcher (Launcher 8), I could try switching back to stock launcher but don't see why that would make difference. I am using 2x battery to manage battery life which disconnects and reconnects mobile data connection when screen is off/on but... I've been using it for several months with no problems. However, I will listen to Fido counsel on this! I am very pleased with the phone otherwise, it's one of the only 4.0 phones with a small form factor, which I like. Really want to fix this as... have no idea that data is 'gone' when it happens and then don't receive emails, etc.
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