sony Xperia Ray ST18i / ST18a to Jelly Bean Update to Android 4.1.1 CM10 Custom ROM
Sony Ericsson Xperia Ray ST18i / ST18a are probably not getting any of the latest Android software updates, but that doesn’t mean you lose hope for your phone. CyanogenMod always saves the day! Android 4.1.1 Jelly Bean can now be installed on Xperia Ray ST18i / ST18awith a CM1o custom ROM. You can easily install Android 4.1.1 Jelly Bean CM10 on Xperia Ray ST18i / ST18a with the tutorial given below. You will need to have ClockworkMod recovery installed from before. Google that if you are not sure.
In this tutorial, we will tell you how to update Xperia Ray ST18i / ST18a to CM10 Android 4.1.1Jelly Bean firmware with complete steps and instructions. You will have to backup all your data in the phone as this tutorial describes you to do a full data wipe. Let’s get on with the tutorial now.
Disclaimer: All the tools, mods or ROMs mentioned below belong to their respective owners/developers. We (TeamAndroid.com) or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial 
What’s Not Working:
- Lots of features. This ROM is still WIP (work in progress).
Make sure you have installed all your USB drivers for the Sony Ericsson Xperia Ray to connect it with the computer. Download Sony Ericsson Xperia Ray USB drivers! Apart from just theUSB drivers, there are a few more things that you need to take care of.
1. You need to enable USB debugging mode. This helps to connect your Android phone with the PC. See here: How to Enable USB Debugging.
2. Your phone battery should be 80-85% charged. If your phone goes off suddenly because of battery, during flashing ROMs or installing mods and updates — your phone might go dead permanently. See here: How to Check Battery Percentage.
3. Backup all your important data that you might need as soon as your flash a new ROM, or make a backup for just in case, you never know when anything might go wrong. See below on how to backup data:
- Backup your SMS messages. How? –> How to Backup/Restore SMS Messages.
- Backup Contacts, Gmail and Google Data. How? –> Sync with Google Sync.
- Backup Call History. How? –> How to Backup Call History.
- Backup WhatsApp Messages. How? –> How to Backup/Restore WhatsApp Messages.
- Backup APN Settings: GPRS, 3G, MMS Settings.
4. Your phone should be factory unlocked. Additional instructions for locked Android devices will be added in the tutorial for unlocking devices.
UPDATE: CM10 with the latest Android 4.1.2 is now available for this Android phone. Read here for the tutorial.
Now, let’s proceed with the tutorial below and update Xperia Ray ST18i / ST18a to Android 4.1.1 Jelly Bean CM10 firmware.
HOW TO: Update Xperia Ray ST18i / ST18a to Android 4.1.1 Jelly Bean CM10
We have put together a detailed step-by-step instructions guide on how to update Xperia Ray ST18i / ST18a to Android 4.1.1 Jelly Bean CM10 custom ROM. If you are used to installingcustom ROMs on your Xperia Ray, then this should not be any different for you.
However, for beginners, you need to root your Xperia Ray and install a custom recovery. Please Google that up if you are unsure and make sure you read the tutorial once before actually performing it on your device.
Just To Remember:
- This root method tutorial is only for Xperia Ray ST18i / ST18a and I am not sure if it will work on the other variants of the Xperia Ray on other carriers.
- Your phone should be rooted and have ClockworkMod recovery installed from before.
- After installing this, your phone will not be detected by Sony PC Companion, because you will be installing a custom ROM.
- Make a Nandroid (or any) backup of your previous phone set up before proceeding – for just in case anything goes wrong.
Complete Step-By-Step Instructions:
Step 1 - Download CM10 Android 4.1.1 ROM and Google Apps for Xperia Ray to your computer.
Step 2 - Connect and mount your Xperia Ray USB memory on your computer using the USB cable.
Step 3 - Now copy/paste the downloaded Android 4.1.1 ROM zip and Google Apps files to your SD card. Make sure the files are in the SD card root (not in any folder).
Step 4 - Then turn off your phone and disconnect from the USB cable.
Step 5 - Now to get in the recovery mode. Switch on the phone while pressing the Volume Down repeatedly. Or if that doesn’t work, you can try this: How to Enter Recovery Mode.
Step 6 - In ClockworkMod recovery, perform a full data wipe first. Then scroll down to “flash zip from SD card” and press the Power button to select it.
Step 7 - Press the Power button again and select “choose zip from sdcard”.
Step 8 -Now using your volume keys, navigate to the Android 4.1.1 ROM zip file that you copied to your SD card and select it using the Power button. Confirm the installation on the next screen and the installation procedure should start now.
NOTE: Repeat this step for the Google Apps zip file as well.
Step 9 - After the installation completes, go to “+++++Go Back” and reboot the phone by selecting “reboot system now” from the recovery menu. The phone will boot now and it might take about 5 minutes to boot on your first time. So, please wait.
That’s it! Your Xperia Ray ST18i / ST18a should now have CM10 Android 4.1.1 Jelly Beancustom ROM installed on your phone! Go to Settings > About phone to verify.
You can follow the original project page for more information and latest CM10 builds.
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If you run into any problems, feel free to drop us a comment below and we will reply you back ASAP with the fix or the solution to your problem.
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