Upgrade Firmware

Xperia sp is a wonderful device from sony with decent specs and a nice camera.Though sony didn't provide kitkat update for this device but there are lot of roms which users kitkat already as a base and its time for you to try a lollipop based custom rom on this device.
Xperia sp is available in two model one comes with 3g while other has support for lte. 3g variant has a model number "C5302" while lte variant has model number "C5303".Device specific code name is "Huashan".
If you wanna try a lollipop based rom on it then check this unofficial blisspop custom rom for xperia sp which is feature rich and stable.

Blisspop rom on sony xperia sp c5303 and c5302:

About Blisspop custom rom:
Blisspop custom rom is based on cyanogenmod 12.1 rom with lot of added features with improved performance and customization.This rom offers all the features that cyanogenmod 12 has to offer and also there are lot of added features from other popular roms too.This rom offer wide range of features from status bar to lock screen.
IT is compiled a xda senior member "whitemamba" , a big thanks to this person.

Features:

• Statusbar tweaks: Status bar tweaks include notification count,network speed indicator,double tap to sleep ,brightness control and weather in status bar header.
• Theme engine: You can change look of your user interface with themes.
• Recents panel tweaks:The recent panel has a button to clear all the tasks and omni switch is present is present as an alternative to traditional recent menu.
• Gesture anywhere:Gesture any where is also available which  makes it easy for you to launch apps with gestures instead of returning to home screen and app drawer to launch apps.
• App circle:In addition to this app circle bar is also present which makes it too easy to launch apps with just a swipe from the edge of the screen but  floating mode for apps doesn't work at all.
• Soft Navigation controls:You can enable soft keys too if you like them and also set the dimension  of the navigation keys and also you can define custom actions.


• Capacitive buttons: hardware keys have an option to adjust back light duration of the button and now you you can do various things with the just home key like accessing a call with just a tap on home key , wake the device and also you can set custom action for double tapping on home key.
• Navigation bar: You can completely disable navigation bar if you dont like or even adjust size of navigation bar.Double tapping on it will put the device to sleep.
• Recents options: You can add memory bar in recents menu and also clear all button too.
• Omni switch: This feature is drawn from omni rom and is an alternative to default recent menu.Once you enable it a floating bubble pops up and when you open it your recent accessed apps with be displayed.You can either access them or clear them.Omni switch is customizable too.
• Power button: Press and hold power button you will have various options including soft boot ,reboot recovery ,screen reorder,air plane mode,screen shot,user switch and lot more,
• Animation control: You can set custom animation for app opening and closing,scrolling up and down.There are lot of animations available to choose from.
• Display and light:This includes live display,adaptive display,rotation mods,wake device on plugging in charger or usb cable,Custom DPI and change font size according to your needs.
• Cyanogenmod Camera app is built in.
• Other mods include audio Fx equilizer,security options,bliss pop ota updates and all standard android features