How To Unlock Bootloader Without Sim Card Info

Warning: Unlocking a device bootloader may void warranty, erase all data, disable some device features (like DRM-protected codecs, secure wallet/biometrics), and can brick the device if done incorrectly. The exact steps and availability vary by manufacturer and model. Assume responsibility for backups and risk.

During the last months I was developing an ASP.NET application and I needed a dropdownlist to display multiple columns in each item. Everyone with a little knowledge in Web-development knows, that HTML doesn't contain built-in support for multicolumn-DropDowns. (more…)