(Important Note: This will void your Xperia Smartphone warranty. Rooted Smartphone only. But be advised that everything written here are only tutorials for Sony Xperia Sola, it may differ on other models. I’m not held responsible for any loss or damage of your Xperia Smartphones. Make sure you have an Internet Connection to complete the whole process)
RULE OF THUMB: READ AND FOLLOW THE INSTRUCTIONS CAREFULLY
FAQ: What is ROM? CUSTOM ROM? What benefits it does on the phone?
ROM by the term Read-Only-Memory, memory chips that is used on the Smartphone which has a stock firmware installed and cannot be modified (well, you can, in terms of flashing the ROM/firmware).
CUSTOM ROM is a custom version of firmware, this includes the kernel (the brain of the OS), apps, custom apps, system apps, services and everything needed in the ROM.
Benefits of the CUSTOM ROM depends on how they modify it, flashing the ROM in the Smartphone and test it to see the results. Modified ROMS has a benefit or features such as impressive battery life, remove bloatware apps, overclocking, new interface or featured apps, some features and additional functions that would flip your Smartphone into a new image.
Some sources to get started forums like XDA. This were I get some of my sources and CUSTOM ROMS that I used to.
HOW TO DO IT?
(1) Your Smartphone must be unlocked (click here on how-tos) and rooted (click here on how-tos).
(2) Install custom rom manager and recovery such as ClockworkMod ROM Manager and TWRP (Team Win Recovery Project).
(3) Copy the newly downloaded ROM to SD Card.
(4) Boot to ROM Manager/Recovery. Try also to do a wipe data/factory reset. (By the way, controls may differ, such as using volume keys to navigate and power button to accept)
(5) Using the ROM Manager, flash the CUSTOM ROM to your Smarphone then wait for further process. Then Reboot.
FOR THE LIST OF CUSTOM ROMS FOR XPERIA SOLA:
Compilation of Xperia Sola CUSTOM ROM on xda forum site by Divaksh (click here)
(Disclosure: Sony Xperia Smartphones, Android, XDA, Info/Logo/Images/Video/Pictures stated above has a respective copyright. We used it for demonstration purpose only.)
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Related Links / Articles / Entries / References / Sources:
HOW TO UNLOCK BOOTLOADER ON XPERIA DEVICES by Jcyberinux
Unroot and Root any Android OS 4.0 to Android OS 4.1 Devices by Jcyberinux
How to Root and Unroot Xperia Sola ICS (6.1.1.B.1.54) by Jcyberinux
ClockworkMod ROM Manager – Official Site
TWRP (Team Win Recovery Project) – Official Site
Xperia Sola [MT27i] Official Thread ROOT, ROMS, MODS, HELP & Guides [All In One] by Divaksh – xda developers – Official Site