According to XDA member AGONTUK, Android 5.1 Lollipop CyanogenMod 12.1 [kumquat] custom ROM is released for Sony Xperia U ST25a. Androidbiits.com has recently posted the step-by-step tutorial for updating Sony Xperia Go ST27i to Lollipop 5.1.1 using CM12.1 [lotus]. The amazing news is that ST25a owners can now install CM12.1 [kumquat]. Isn’t it amazing? Androidbiits will post the steps for updating Sony Xperia U ST25a to Android 5.1 Lollipop CM12.1 [kumquat]. This is really an amazing news for the proud users of ST25a. Have you managed to get your hands on ST25a? CM12.1 [kumquat] may bring various improvements on your favorite ST25a.
I am hoping that ST25a proud users will be able to install CM12.1 [kumquat] securely without experiencing issue after reading the tutorial published in Androidbiits.com. CM12.1 [kumquat] needs rooted ST25a, so it is very crucial to root your favorite Sony Xperia U ST25a before installing CM12.1 [kumquat]. What are you thinking now? If you haven’t rooted your ST25a, then you must do it as soon as possible. Dear ST25a user, you must install TWRP recovery on Sony Xperia U ST25a before installing CM12.1 [kumquat]. I forgot to mention that the proud users of ST25a can install CM12.1 [kumquat] effectively after unlocking the bootloader.
If you aren’t happy with old software, then you may install CM12.1 [kumquat] on your favorite ST25a. The awesome thing is that CM12.1 [kumquat] will allow the ST25a proud users to use Lollipop 5.1 on ST25a. Androidbiits.com recommends that ST25a owners must save their personal files including contacts and songs before installing CM12.1 [kumquat] on ST25a, otherwise all your important files may be deleted from ST25a.
Below are the easy instructions for installing CM12.1 [kumquat]. Androidbiits.com won’t take responsibility if ST25a got damaged during the installation of CM12.1 [kumquat]. Dear ST25a user, you have to flash boot.img on ST25a via fastboot. ST25a battery must be more than 92 percentage before following this tutorial.
How to Install Android 5.1 Lollipop CM12.1 [kumquat] Custom ROM on Sony Xperia U ST25a [Simple Steps]
1. It is essential to download CM12.1 [kumquat] for your favorite ST25a.
2. Gapps must be downloaded for device.
3. It is the proper time to activate USB debugging.
4. It is the time to attach phone with desktop.
5. It is essential to transfer CM12.1 [kumquat] to your favorite ST25a.
6. It is the time to power off your phone.
7. It is the time to remove the USB cable from your phone.
8. It is the time to put phone into Recovery Mode.
9. It is the time to tap “wipe data/factory reset” on phone.
10. It is the time to tap “wipe cache partition” on phone.
11. It is the time to click “install zip from SD card” on device.
12. It is essential to choose CM12.1 [kumquat] on your favorite ST25a.
13. It is essential to install CM12.1 [kumquat] on your favorite ST25a.
14. It is the time to go to the main menu on device.
15. It is the time to click “reboot system now” on device.
16. It is the time to wait until device restarts.
After your Xperia U ST25a is restarted, you can test CM12.1 [kumquat]. Isn’t it amazing? If you are experiencing any issue during the installation of CM12.1 [kumquat] on your favorite ST25a, then feel free to share your issue with Androidbiits.com.