Sony XPERIA Z1 Compact is smaller variant of XPERIA Z1. This phone has very nice HD Triluminos display, powerfull quadcore CPU from Qualcomm, 2 GB RAM or 20,7 megapixel camera. Below you can find the latest firmware for the phone and also three tutorials/manuals - how to unlock the bootloader, how to relock the bootloader and how to backup the original firmware customization. First of all one important thing - before you start to do anything with your phone, do the backup of your personal data. It is only for your safety in case that something goes wrong or any mistake happens. In that case you can use the backup to restore the data and try to do everything once again. Each tutorial has been done many times to verify its propriety, so just read carefully all instructions and continue step by step. For each of Sony (Ericsson) XPERIA smartphones we will provide a manual consisting of 4, 5 or 6 „HOW TO“ chapters. Our tutorials will be of course updated every time when Sony Mobile publishes anything new, affecting any of our topics. All important files have been stored on Google Drive, so there should be no problem with downloading. The major part of every file has been created by myself and every file has been tested on the corresponding phone. All referenced files are determined for Sony XPERIA Z1 Compact D5503. So, what can you expect in terms of mentioned manuals / tutorials?