[XPERIA X8 General] luisjoseb:
In this post you find how to install the latest firmware to Xperia X8 and how to install custom ROMS.

Important note:

The Xperia X8 have 2 models, the E15a and the E15i, is very important to identify your version, because if you install a firmware for another version, the 3G connection don't work. It solves flashing the correct firmware.

The main difference in both models is:

E15a have UMTS/HSPA 850/1900/2100

E15i have UMTS/HSPA 900/2100

How to update your X8 to android 2.1 with an official firmware and provided tools

For Android 1.6 exist 1 version, for andoid 2.1 exist 2 versions, the latest firmware is 2.1.1.C.0.0

You can update your Xperia X8 with 2 differentes steeps.

You can update your phone using PC Companion Software

You can update your phone using Sony Ericsson Update Service (SEUS)

To update your phone with PC Companion follow this instructions:

Connect the phone to a PC

Open the PC Companion Software

The PC Companion Software show that new update is available to download and install, follow the instructions in PC Companion and you will update your phone

If PC Companion don't show the update, you must need to change the SI code of your phone, to change it follow this procedure:

You need to know your version of Xperia X8, if is a E15a or else E15i

You need to identify the correct SI for your specific version, you can use 1243-9502 for E15a or 1242-7327 for E15i

Open this thread and follow the instructions, use the provided codes, the linked post have another codes for E15i model. In the post #12 of this thread are a lot of codes for both versions.

When change the SI, follow the previus instructions

To update with SEUS, Open the program and follow the instructions, if not update is available, you must change the SI code following the previus instructions, when done, open SEUS again and follow the instructions.

If you can't update with this steps, you can flash the firmware, please see next entry.

How to flash a official firmware to your X8 with a flash tool

You can flash your phone with a flash tool, and no need to use PC Companion or SEUS in this process.

To flash the phone, you need

Flash tool: http://xdaforums.com/showthread.php?p=10738467 use lates version

The firmware (be sure to use the correct firmware)

Firmwares to Xperia X8

E15a android 1.6 SI 1243-5247 Claro http://www.megaupload.com/?d=R9FW86JK

E15a android 2.1.0 SI 1243-9502 Sony http://www.megaupload.com/?d=WH2G2U88

E15a android 2.1.1 SI 1243-9502 Sony http://www.megaupload.com/?d=U4FWILXI (2.1.1.A.0.6)

E15a android 2.1.1 No yet but the E15i with xRecovery Works fine (2.1.1.C.0.0 latest firmware, need to flash first the 2.1.1.A.0.6 to update the baseband)

E15i android 1.6 http://rapidshare.com/files/432487345/E15i_1.6.rar

E15i android 2.1.0 russian ROM http://pashkovsky.com/x8/x8-2.1-rus.rar

E15i android 2.1.1 http://www.mediafire.com/?d3pobqqc3py66 (2.1.1.A.0.6)

E15i android 2.1.1 http://www.multiupload.com/VKNI6Q6ET5 (2.1.1.C.0.0 latest firmware)

To flash the phone use this procedure:

Extract the flash tool in your computer for example in C:\FLASH-TOOL

Extract the firmware in to folder firmware inside flash tool folder, for example in C:\FLASH-TOOL\FIRMWARE\<FIRMWARE_FOLDER_NAME>

Follow this guide to flash the firmware http://xdaforums.com/showthread.php?p=10879507#post10879507, first follow the 4 post instructions (Install .ftf files), then follow 3 post instructions (Install .sin files, really convert to .ftf)

How to flash a custom firmware to your X8 with a flash tool

To flash a custom firmware, you need your phone with the latest version of Android 2.1.1, follow the previus steeps to update your phone. When done, follow this steeps.

The great custom firmware for X8 at this moment is Cyanogen Mod for mini, exist a version with Froyo (2.2), GingerBread (2.3) and HoneyComb (3.0)

With any of this firmwares, you need to update with xRecovery installing update.zip from SD Card

To update, you need:

The latest firmware 2.1.1

xRecovery: http://xdaforums.com/showthread.php?t=878426

The update.zip with the desired firmware

Cyanogen mod firmwares:

Froyo (Android 2.2) very stable for daily use: http://xdaforums.com/showthread.php?t=964223

GingerBread (Android 2.3) beta: http://xdaforums.com/showthread.php?t=973753

HoneyComb (Android 3.9) alpha: http://xdaforums.com/showthread.php?t=973753

To install the custom firmware follow this procedure:

Have the battery minimun in 50%

Copy update.zip in the root of SD card

Boot the phone and enter in xRecovery mode

I recomend to perform a backup of you current firmware. To do it, in xRecovery mode go to Backup and restore and select Backup

In xRecovery select Install update.zip from SD card to install the new firmware

In xRecovery select Factory reset (full wipe)

In xRecovery select Reboot and wait for 1 to 5 minutes while new firmware boot the phone

Enjoy it!

For spanish users/Para usuarios de habla hispana:

To upate your phone to 2.1 follow this tutorial/Para actualizar a 2.1 sigue este tutorial: http://luisjoseb.blogspot.com/2010/12/actualizacion-de-xperia-x8-android-21.html

To update you phone with a custom rom follow this tutorial/Para actualizar con una ROM personalizada sigue este tutorial: http://luisjoseb.blogspot.com/2011/03/android-22-froyo-para-xperia-x8.html