www.qianqin.de

I just got my new Android cell phone, the Motorola Milestone/Droid and I have to say Android is great! It’s so much better than Windows Mobile. A lot of the functionality comes from the Android Market. So while I was downloading Apps from it, I couldn’t find any tools for managing my analog dual-sim-adapter, so I decided to write one on my own. The Android SDK seemed to be very well documented, so I thought I give it a try. And guess what, I found the resulting program to be useful enough that I purchased a Market-Account for $25 and published it there. Find out more on the MultiSim section of my website.

Windows 7 is said to have great biometric support. Well, it does, if the Fingerprint Reader would be working. I own a Medion MD 85264 for years now and it was really problematic to setup, especially in XP and Vista. So I was really astonished when I plugged the Fingerprint scanner and Windows 7 installed the drivers right away. A quick look at the device manager revealed that the device was powered by an Authentec AES2501A. But if you tried to actually use it, Windows 7 complains that there is no management software.
Read more »

A few weeks ago, my T-Home Entertain VDSL 50 stopped working, for no reason at all. My VDSL modem, the “Speedport 300HS” suddenly couldn’t sync anymore. I thought T-Com is probably doing maintenance, so I waited for a day, but it still wouldn’t sync. So I called the T-Com, asking what the problem would is. They told me everything should be fine, but I can order a technician, who can come to my place to check the line. The only condition is, if my line isn’t broken, I’d have to pay €100 for the technician.
Read more »

During my last semester, I participated at a seminar. My topic was “Games on the cell phone”. I’m putting the text I wrote online. It’s in German, but if someone is interested, feel free to have a look.

Spiele auf dem Handy (PDF)

I never thought that something like this would happen to me, but when I arrived at Beijing International Airport a few days ago to travel to Nanning to visit my relatives, I couldn’t believe my eyes. I got out of the car, took both suitcases out of the trunk and start looking for my backpack. OMG, my passport is in my backpack, how am I supposed to fly without identification? I looked at my watch, 12:35, my plane is taking off at 14:00. That’s less than one hour to return home, run up to the 15th floor, get my backpack, run back down and race back to the airport. Did I mention that the traffic in Beijing is incredibly dense?

Read more »

Li-Ion batteries are practically everywhere. They are used for mobile phones, notebooks, even cars. But most people don’t really know about them and give out wrong hints on how to use and charge them. So here are two important facts about Li-Ion batteries you should know:
Read more »

Being a student at the TU-Berlin is quite nice. Our campus is right in the city, so it’s quite easy to go shopping right after your classes. We have a canteen called “Mensa” for the students too, serving really cheap food. You usually pay around € 1.90 for some meat, plus € 0.30 for some potatoes or rice and another € 0.30 for a little salad. € 2.50 for a meal, sounds good right? Unluckily, there is a catch. The food tastes incredibly bad. Most students know that, but the alternative is the workers canteen, which offers quite nice food, but for € 4.00 a meal. So what about students like me who don’t have the money to eat the expensive food every day but don’t want to puke after each € 2.50 meal from the Mensa?

Read more »

On my birthday this year, my girlfriend surprised me with a short trip to “Schöna”, a small village in the Saxon Switzerland, around 200km from Berlin. So what’s so special about the Saxon Switzerland? Well, you have a huge green forest and some really weird high stones standing there. It looks really beautiful, especially when you standing on top of one of the stones. There are only cliffs around you so you can look really far in every direction. They are usually only around 100m high, so you can climb them pretty fast. With our bikes biggy-backed, we drove to Schöna and started off with a bike tour to Czech Republic.

Read more »

Currently, Flash does not natively support prevention of multiple instances, so a workaround is needed. Why would anyone want to prevent multiple instances anyway? Well, I use Flash as a Chat client, so allowing a user to run multiple instances would mean that they could join the chat multiple times, which is not really a wanted feature. So how do I prevent users from joining the chat multiple times?
Read more »

Usually, when you need to send a letter, you would probably walk to the post office to buy a stamp, or maybe a full set with 10 or more. In Germany, post offices are usually really full and it takes quite some time until you can buy your stamps. The Problem is that the post offices here are also a bank, so there are a lot of customer doing bank business there. They do offer vending machines for stamps, but they printed ones are really ugly and not self-adhesive, so you have to lick them, which I can’t stand a bit personally. So is there a better way to get your stamps?
Read more »