LG Google Nexus 4 – How to fix no SIM card error

This morning I tried to switch my mobile phone on, only to be greeted by an error. It stated in the top left corner:

No SIM card. Emergency Calls only.

The date on the phone was set to the 1st of Janurary and every time I tried to restart the phone the error would not go away.

I removed the SIM card from the device using a bent staple (I couldn’t find that little widget to open it properly), and checked to make sure everything was clean.

Finally, I noticed that flight mode was still on. I went into the settings and switched flight mode off. I then restarted the phone and the SIM personal lock code appeared. After entereing my PIN successfully the phone was back to normal.

Hopefully this helps anyone else with the same error.

Revolutionizing measurement with a smartphone-connected laser distance meter

“We build precise, sensitive devices for smartphones,” Eichenwald said. “The product that we’re working on right now is the worlds’ smartest laser distance meter. It’s directed to two big groups right now, so we’ve made one app that’s directed at do-it-yourselfers and consumers (a floor plan app), and for our B2B customers we’re doing a price quote app so that electricians or heating guys for instance can walk into a building, enter the price-per-feet of their systems and quickly generate a quote.”

via Senic Wants To Revolutionize Measurement, Starting With A Smartphone-Connected Laser Distance Meter | TechCrunch.

As someone who works with companies that have a desperate need to quickly size up rooms, Senic appears to be a great step forward in this market space.

http://www.youtube.com/watch?v=hejk4EDz8vA

Spatial sensing and measurement on mobile devices

APIs from RealityCap give iOS apps the ability to sense their surroundings in three dimensions. This patent-pending sensor fusion technology combines computer vision and inertial data to give your apps accurate 6DOF device motion and a 3D point cloud of the environment. RealityCap software runs on 2011 (A5-based) and newer devices in real time, with no additional hardware or markers. Results are accurate over both short and long distances, and come with absolute scale in meters.

via RealityCap » Mobile Spatial Sensing.

I’ve previously covered other apps that are coming to market to help DIYers and professionals to quickly size rooms. This is slightly different; in that their is no external tool. You take a photo, that gets sent to a web service that does the calculations to work out the length of different objects in the photo. Very smart stuff.

Don’t build mobile apps like web applications

Power on a cell phone is like water in a desert. It’s the very stuff of life. If you take the same naive programming techniques you learned when programming on a server in a datacenter your cell phone will die of thirst.

via High Scalability – If Youre Programming a Cell Phone Like a Server Youre Doing it Wrong.