[Guide] Installing Custom Rom Xperia Ion (CM)
I have made this thread as a desperate attempt to minimize questions such as the one that follows. I have seen these questions clog up development threads and the responses are usually short and the user if extremely new to android, gets lost.
In making this guide, I have chosen to use the custom rom: CM-10 for Locked Bootloaders Rom shared by @optimumpro
I chose this rom due to the simple fact that the question was based from that thread AND because I myself use this rom.
The instructions as given are
Originally Posted by qzone23
Sorry to bother you all with my annoying questions, but, as far as twrp or cwm go, will titanium
backup suffice and how exactly do I install the rom?
Sent from my LT28at using XDA Free mobile app
1. Have JB latest Stock Kernel, Roger's Baseband in case of LT28i, Root and Recovery
2. Format System/Data/Cache in TWRP or Mount and Format the same in CWM
3. Install the ROM and Reboot. Nothing else is needed
here is the general breakdown if you are moving from Stock on XPERIA ION to in this example, the CM 10 rom for locked bootloaders.
------If from ICS, follow from step 1
------If from JB, follow from 1a
-You need flashtool (http://www.flashtool.net/index.php
-You need the firmware (http://forum.xda-
You need to download the JB for Generic International Firmwares - LT28h and if you wish to have LTE for AT&T devices then
you must also download the latest JB for rogers (Rogers Stock Firmwares - LT28i)
First, Flash the Generic Ftf
(optional) For LTE, flash the Rogers Firmware with EVERYTHING excluded except for baseband
There are a few methods but personally I use:
Download the current version (happens to be v33 at the moment)
-Connect phone to computer with Android Debugging Enabled with Unknown Sources
-Run the required File and follow the instructions in the Command Prompt Window
--It will complete the required steps and upon reboot, you will have root access.
-Install Busybox after root
--Download RECOVERY for XperiaIon v.4.zip
-Connect phone with same requirements for root
--extract and run the .bat file->done
MAKE SURE YOU HAVE THE SPECIFIC ROM YOU WANT ALREADY ON YOUR INTERNAL OR EXTERNAL SD CARD BEFORE CONTINUING you have been warned
2) CWM MENU SELECTION
-Upon Reboot a BLUE LED should appear, immediately hold the volume DOWN key, CWM menu should appear
--Scroll using the volume and select using the power key--
-Go to Storage and as instructed by the CM 10 Rom I specified, wipe System/Data/Cache
For more information on the CWM menu breakdown visit:
-If you would like to make a backup of your current rom, go to option 4 the Nandroid menu and select the Backup Option
Then go back to main menu, to go the INSTALL MENU
and select choose zip from (external/interenal (depends on where you stored the zip))
-navigate to zip location-> select-> yes-> install