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HOW TO: Update Xperia Miro ST23i to Android 4.1.2 Jelly Bean CM10

We have put together a detailed step-by-step instructions guide on how to update Xperia Miro ST23i to Android 4.1.2 Jelly Bean CM10 custom ROM. If you are used to installing custom ROMs on your Xperia Miro, then this should not be any different for you.

However, for beginners, you need to root your Xperia Miro 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 Android 4.1.2 tutorial is only for Xperia Miro ST23i and I am not sure if it will work on the other variants of the Xperia Miro 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 4.1.2 ROM and Google Apps for Xperia Miro to your computer.

Step 2 – Connect and mount your Xperia Miro USB memory on your computer using the USB cable.

Step 3 – Now copy/paste the downloaded Android 4.1.2 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 4.1.2 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 Miro ST23i should now have Android 4.1.2 Jelly Bean custom 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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Author

Haris lives on everything Android; has countless devices, apps and games to play with everyday. Currently serving as the Chief Editor at Team Android.

8 Comments

    • go install sony pc companion and click on support zone the select repair my phone
      then follow steps untel it ask for phone model , select ur phone model (xperia miro ) then follow steps it will downlowd some files and when it will end click finish and unplug usb turn on your phone boom it shud be work enjoy 😉

  1. gan kenapa setelah instal semua sucses mala miro ane ga bisa nyala padahal ud betul semua langkahnya,, sllu flasing ke ics lagi….mohon pencerahannya

  2. JustYoMoLo Reply

    Its dead ur server for download Download CM10 Android 4.1.2 ROM

  3. i did everything right .. when i selected reboot system it shut down and never opened .. someone please help me pleasseeeeeee :S

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