I went to London the other day, and had some most bizarre issues with my Samsung Galaxy S II.
I took my charger with me, and kept it plugged in on the train (which has sockets). I used the web all the way up - it was on H+ with full signal bars.
When I got to London, it started playing up. I'll bullet point the faults.
- It started "beep boop"ing continually, as if it were being plugged into USB (it said this on the screen, too).
- When I shut it down to rectify this error, it rebooted. Every time.
- I removed the battery. Remember, this was at 100%.
I went to an auction. Hours later, I put the battery back in the phone. The battery had sat on its own on top of my bag, and was cool to touch.
- The phone refused to boot, showing a picture of a battery with a thermometer!
Replacing the battery again fixed this error. However....
- The phone warned me it was going into power saving mode, as the previously fully charged battery that had remained out of the phone was below 50%!
- I then discovered that the Internet wasn't working for apps. It seemed fine for Web pages. I could access Twitter's web page, but not the app.
I thought that it might be a glitch, so disabled data.
- The H+ symbol remained at the top of the screen, even 5 minutes later.
Rebooting fixed this - it then enabled and disabled.
I went to Starbucks to see whether connecting to their wireless would rectify the problem.
- It didn't.
I thought that perhaps it was a network error. I've had issues in London previously. And then....
- It stopped working on apps or web pages, via wireless, too!
I decided to text my friend. Being an Android phone, it texts much like the iPhone - with speech bubbles.
- I sent the text off. It did the animation, but the speech bubble with what I said DIDN'T APPEAR!
I then received a reply from my friend. I saw the notification at the top of the screen, where I could read it. My envelope icon had 1 over it.
- I clicked the envelope. My friend wasn't at the top of the list, as he should have been when I receive a text from him. He was at the bottom.
- I checked his messages - the one he sent wasn't there!!
We texted each other several times. Still, this behaviour persisted.
Then, most strangely, I got to the first station that is (well) out of London. The last station before home. The second we left this station, Facebook gave me a new notification. I checked - it worked! So I texted my friend to let him know. MY SPEECH BUBBLE APPEARED! He replied - his bubble appeared, too!
Conclusion - it couldn't have been a network fault, as this surely wouldn't stop texts that I composed going to my sent list. My phone MUST just hate London!!
(That, or they're doing some weird tests in London - perhaps preparing for disaster at The Olympics?! Or maybe Katy Perry, who was in Leicester Square, carries a jammer?)