Sony Xperia C4 E5306 Update to Android Marshmallow 6.0 Stock Rom 27.3.A.0.129 US Generic. First of All, You Must Need to Follow How to Flash C4 E5306 Stock Firmware & You can Get Original Xperia C4 File From Below Content of this Post.
How to Update Xperia C4 E5306 to Marshmallow 6.0 Stock Rom US Generic
Step: 1) Take a Look, check your XA F3212 firmware version If Device has Latest One Just Skip this Thread
Step: 2) Get latest Sony Flashtool version from HERE
Step: 3) paste the FTF Firmware file to folder „Which Name Firmware“ included in the XPERIA Flashtool
Step: 4) open the Flashtool, click on Install and Select downloaded firmware, then click ok. Important – if you do not want to delete any data of your phone, just uncheck flashing userdata.sin file. All device important data will remain on your phone, but sometimes it can cause additional troubles. So it is better to you (and I Suggested that) to do the backup of your Phone data than proceed with clean installation and then restore your Device data.
Step: 5) Switch off your Xperia XA and when Flashtool Display pop up window, connect phone to Computer with Keep Holding volume down button
Step: 6) After Some Minutes All procedure is Done & Enjoy Latest Firmware in Your Device
Sony Xperia Bootloader Unlock
Sony Xperia Bootloader Re-Lock
Download Android 6.0 US Generic Stock Firmware For Sony Xperia C4 E5306
File Size: 1.55 GB