[XPERIA X2 General] Wiidjinn:
Hi guys I came to some kind of solution.

There is no way to update it but:

I downloaded R3A rom with all its cabs;

downloaded R1B rom with all its cabs;

put them on sd;

installed the following cabs from R3A as specified in "Want a fix for the X2? Only us can do it":

__prod_date_setting.cab

Sony Ericsson Date Setting (Sets date and time to 05-01-2010).

_setupJbed.CAB

Installs Myriad Java.

AwoX_DMS_Setup_for_SEMC_win32-v08.cab

Installs AwoX Media Server.

CABInstaller_R101.CAB*

Sony Ericsson CAB Installer (Possibly something related to PlayNow).

Camera_R210_RC2_39165.CAB

Sony Ericsson XperiaCamera.

Change_OTA_CP_Policy.cab*

Change the following settings on the registry. Maybe required.

CommManagerCab.CAB

Installs Sony Ericsson Communicator Manager.

ConnectionSetup.CAB

Installs Connection Setup. (Still details needed, but possibly required)

DRMWhiteList.CAB

Installs DRM Settings on Control Panel.

EnableMonitorNapDef_V10.CAB*

Sony Ericsson EnableNap (Possibly required)

IdleModeText.CAB*

Returns the text to display when the system is in idle mode. (Possibly required).

IlluminationSvc.cab

Installs Ilumination Service (Lights and LEDs).

JMMS_Ver4.5.122_02Apr10_SE_PPC_653.cab

Installs Jataayu MMS client (Required for MMS).

MobileDataSetup.CAB*

Installs Sony Ericsson Mobile Data App for setting Internet Access.

MonitorNapDefChange_V10.CAB*

Sony Ericsson NapCab. (Possibly required).

MyCPLSetup.CAB

Sony Ericsson MyCPL Setup. (Possibly required).

OEMNotif_R101.CAB

Sony Ericsson OEMNotif (Possibly required).

OJSettingsSetup.CAB*

Sony Ericsson Optical Joystick.

owp_es.cab*

Replace start pages on Internet Explorer (Language Localized).

PhoneSettings.CAB

Installs Phone Settings icon on Control Panel.

PMBacklight.CAB

Installs Backlight and Power Management icon on Control Panel.

SE_StartMenuLandscape.cab

Enable Start Menu to work on landscape mode.

se_sync_cert.cab*

Installs Sony Ericsson Sync Cert.

SEMCFlashDeployment.CAB

Installs a Flash version from SE on the device (required by other CABs like Flash Panel to work).

SEMCUtilityV4_4CAB.CAB

Possibly related to AutoLocker (possibly unstable).

SettingsPart1.CAB*

Related to Mobile Data App. Contains carriers info. Required.

SettingsPart2.CAB*

Related to Mobile Data App. Contains carriers info. Required.

Setup_BT_Ext.CAB

Sony Ericsson Bluetooth Settings (Required).

SonyEricsson_Emailsignature.CAB

Change E-Mail signature.

SymSelectorSetup.CAB*

Enables SYM key on keyboard (required).

TimezoneSvc.CAB*

Time Zone Service.

TVOutManagement.CAB

Installs TV Out Management.

VTSetup.CAB

Installs Videocall (Required).

wlan_1.5.cab.

Sony Ericsson WLAN (Required).

XpFilterDeploy.cab

Some kind of audio filter (Possibly required).

XpFramework.cab

Sony Ericsson XpFramework (Possibly required).

zz010_Translations.CAB*

Sony Ericsson Mobile Comm Translations (Possibly required).

zz020_Translator.CAB*

Sony Ericsson Mobile Comm Translator-App (Possibly required).

zzCallNotifDllName.cab*

Unknown (possibly required).

zzJMMSRegSetting.cab*

SE JMMSRegSetting (Possibly required).

zzSE_MSFT_Settings.cab*

Sony Ericsson MSFT Setting (Possibly required).

zzz010_Generic_Default.cab

Installs Sony Ericsson Sounds and Images (Required).

zzz015_MSFT_License_XX.cab

License (Language Specific)

zzz020_content.cab

Installs some strange personalizations (but possibly required)

zzz023_startmenu_XX.cab

Rename/move some icons (Language Localized)

zzz050_network.cab

Some personalizations refered to the network settings (possibly required).

zzzz_camera_startmenu_move_down.cab

Camera Start Menu Move Down.

zzzz_fix_owp.cab

Sets start page.

zzzz_test_auto_ip.cab

Ensures Auto IP on Wi-Fi conection.

zzzzSEUS_VersionInfoSONEN.cab*

Register version Info.

zzzzz_OemNotif.cab

Register notification OEM.

Then I installed, from R1B ROM, these cabs (those ones from R3A were not working), for thei right name refer to the oversaid topic:Autolock

SetupSNM

THS setup

VideoCall

Optical Joystick

Device Info

Fast Gps

Microphone AGC

Phone reset

and X2 Multifix

Then I enabled autorotation editing registry (see topic: [Solution] Another tip to make your Xperia X2 lightspeed fast and stable!!) and enabled it for TomTom and Opera Mini

as said from WINE GLASS:

HKEY_LOCAL_MACHINE\Services\MultiService\mods\Rota tion

Change 'AccelBasedRotationEnabled' DWORD Data to 1

Now you will have autorotate with a few apps. Slideview, panel manager, sms/mms, internet explorer.

To get it working with other things you have to add a few more keys.

HKEY_LOCAL_MACHINE\Services\MultiService\mods\Rotation\AADRClients

make new keys for required apps.

new string value in each, named 'ModuleFileName'

Enter programs exe path.

Examples,

Program Files\Resco Photo Manager\PhotoMan.exe

Program Files\SPB Time\SpbTime.exe

Program Files\Spb Mobile Shell\MobileShell.exe

Program Files\Resco Explorer\Explorer.exe

Soft Reset and you are done.

Then I installed SPB MOBILE SHELL (the latest availeble from their website).

The phone runs good and seems stable.