[HTC Desire X] Muflone71:
maybe it's that...... it's a NEW Sandisk class10 16Gb Ultra. same MicroSD I've put in my black Desire X.

here is the log:

Starting TWRP 2.4.3.0 on Sun Mar 24 09:18:54 2013

TW_INCLUDE_DUMLOCK := true

I:Internal path defined: '/emmc'

I:External path defined: '/sdcard'

TW_DEFAULT_EXTERNAL_STORAGE := true

I:Lun file '/sys/class/android_usb/f_mass_storage/lun1/file'

Starting the UI...framebuffer: fd 3 (480 x 800)

=> Linking mtab

=> Processing recovery.fstab

I:Processing '/recovery'

I:Processing '/boot'

I:Processing '/cache'

I:Processing '/data'

I:Processing '/sdcard'

I:Processing '/system'

I:Processing '/misc'

I:Processing '/devlog'

I:Processing '/emmc'

I:Created '/and-sec' folder.

I:Creating .android_secure: /emmc/.android_secure

Updating partition details...

I:Can't probe device /dev/block/mmcblk0p26

E:Unable to mount '/data'

I:Actual block device: '/dev/block/mmcblk0p26', current file system: 'ext4'

I:Unable to mount '/sdcard'

I:Actual block device: '', current file system: 'vfat'

I:Unable to mount '/sdcard'

I:Actual block device: '', current file system: 'vfat'

I:Unmounting main partitions...

Partition Logs:

/recovery | /dev/block/mmcblk0p21 | Size: 8MB

Flags: IsPresent

Primary_Block_Device: /dev/block/mmcblk0p21

Display_Name: recovery

Backup_Path: /recovery

Backup_Name: recovery

Current_File_System: emmc

Fstab_File_System: emmc

Backup_Method: dd

/boot | /dev/block/mmcblk0p22 | Size: 4MB

Flags: IsPresent

Primary_Block_Device: /dev/block/mmcblk0p22

Display_Name: boot

Backup_Path: /boot

Backup_Name: boot

Current_File_System: emmc

Fstab_File_System: emmc

Backup_Method: dd

/cache | /dev/block/mmcblk0p27 | Size: 251MB Used: 4MB Free: 247MB Backup Size: 4MB

Flags: Can_Be_Wiped Wipe_During_Factory_Reset Wipe_Available_in_GUI IsPresent

Primary_Block_Device: /dev/block/mmcblk0p27

Display_Name: Cache

Backup_Path: /cache

Backup_Name: cache

Current_File_System: ext4

Fstab_File_System: ext4

Backup_Method: files

/data | /dev/block/mmcblk0p26 | Size: 0MB Used: 0MB Free: 0MB Backup Size: 0MB

Flags: Can_Be_Wiped Wipe_During_Factory_Reset Wipe_Available_in_GUI IsPresent

Primary_Block_Device: /dev/block/mmcblk0p26

Display_Name: Data

Backup_Path: /data

Backup_Name: data

Current_File_System: ext4

Fstab_File_System: ext4

Backup_Method: files

/sdcard | | Size: 0MB Used: 0MB Free: 0MB Backup Size: 0MB

Flags: Can_Be_Wiped Removable Is_Storage

Primary_Block_Device: /dev/block/mmcblk1p1

Alternate_Block_Device: /dev/block/mmcblk1

Display_Name: sdcard

Backup_Path: /sdcard

Backup_Name: sdcard

Storage_Path: /sdcard

Current_File_System: vfat

Fstab_File_System: vfat

Backup_Method: files

/system | /dev/block/mmcblk0p25 | Size: 942MB Used: 16MB Free: 926MB Backup Size: 16MB

Flags: Can_Be_Wiped Wipe_Available_in_GUI IsPresent

Primary_Block_Device: /dev/block/mmcblk0p25

Display_Name: System

Backup_Path: /system

Backup_Name: system

Current_File_System: ext4

Fstab_File_System: ext4

Backup_Method: files

/misc | /dev/block/mmcblk0p17 | Size: 0MB

Flags: IsPresent

Primary_Block_Device: /dev/block/mmcblk0p17

Display_Name: misc

Backup_Path: /misc

Backup_Name: misc

Current_File_System: emmc

Fstab_File_System: emmc

Backup_Method: dd

/devlog | /dev/block/mmcblk0p28 | Size: 23MB Used: 5MB Free: 17MB Backup Size: 5MB

Flags: Can_Be_Wiped IsPresent

Primary_Block_Device: /dev/block/mmcblk0p28

Display_Name: devlog

Backup_Path: /devlog

Backup_Name: devlog

Current_File_System: ext4

Fstab_File_System: ext4

Backup_Method: files

/emmc | /dev/block/mmcblk0p31 | Size: 1125MB Used: 0MB Free: 1125MB Backup Size: 0MB

Flags: Can_Be_Wiped IsPresent Has_Android_Secure Is_Storage

Symlink_Path: /emmc/.android_secure

Symlink_Mount_Point: /and-sec

Primary_Block_Device: /dev/block/mmcblk0p31

Display_Name: emmc

Backup_Path: /and-sec

Backup_Name: and-sec

Storage_Path: /emmc

Current_File_System: vfat

Fstab_File_System: vfat

Backup_Method: files

I:Loading package: TWRP (/script/ui.xml)

I:Loading package: TWRP (/emmc/TWRP/theme/ui.zip)

I:Loading package: TWRP (/res/ui.xml)

I:Loading resources...

I:Loading variables...

I:Loading pages...

I:Loading page main

I:Loading page main2

I:Loading page install

I:Loading page flash_confirm

I:Loading page flash_zip

I:Loading page flash_done

I:Loading page clear_vars

I:Loading page confirm_action

I:Loading page action_page

I:Loading page singleaction_page

I:Loading page action_complete

I:Loading page filecheck

I:Loading page rebootcheck

I:Loading page wipe

I:Loading page backup

I:Loading page backupname1

I:Loading page backupname2

I:Loading page backup_run

I:Loading page restore

I:Unable to open '/emmc/TWRP/BACKUPS/HT2ASLY04309'

I:Loading page restore_select

I:Loading page renamebackup

I:Loading page restore_run

I:Loading page mount

I:Loading page usb_mount

I:Loading page usb_umount

I:Loading page reboot

I:Loading page settings

I:Loading page timezone

I:Loading page screen

I:Loading page advanced

I:Loading page partsdcard

I:Loading page htcdumlock

I:Loading page lock

I:Loading page filemanagerlist

I:Loading page filemanageroptions

I:Loading page choosedestinationfolder

I:Loading page filemanagerrenamefile

I:Loading page filemanagerrenamefolder

I:Loading page filemanagerchmod

I:Loading page filemanagerconfirm

I:Loading page filemanageracction

I:Loading page decrypt

I:Loading page trydecrypt

I:Loading page terminalfolder

I:Loading page terminalcommand

I:Loading page sideload

I:Loading page installsu

I:Loading page fixsu

I:Set page: 'clear_vars'

I:Set page: 'main2'

I:Switching packages (TWRP)

Command: "/sbin/recovery"

ro.secure=1

ro.allow.mock.location=0

ro.debuggable=1

persist.sys.usb.config=adb

ro.build.id=IMM76L

ro.build.display.id=cm_protou-userdebug 4.0.4 IMM76L eng.yasir.20130307.215538 test-keys

ro.build.version.incremental=eng.yasir.20130307.215538

ro.build.version.sdk=15

ro.build.version.codename=REL

ro.build.version.release=4.0.4

ro.build.date=Thu Mar 7 22:02:29 PKT 2013

ro.build.date.utc=0

ro.build.type=userdebug

ro.build.user=yasir

ro.build.host=yasir-HP-G62-Notebook-PC

ro.build.tags=test-keys

ro.product.model=Desire X

ro.product.brand=HTC

ro.product.name=cm_protou

ro.product.device=protou

ro.product.board=protou

ro.product.cpu.abi=armeabi-v7a

ro.product.cpu.abi2=armeabi

ro.product.manufacturer=htc

ro.product.locale.language=en

ro.product.locale.region=US

ro.wifi.channels=

ro.board.platform=msm7k

ro.build.product=protou

ro.build.description=cm_protou-userdebug 4.0.4 IMM76L eng.yasir.20130307.215538 test-keys

ro.build.fingerprint=HTC/cm_protou/protou:4.0.4/IMM76L/eng.yasir.20130307.215538:userdebug/test-keys

ro.build.characteristics=default

ro.cm.device=protou

ro.rommanager.developerid=cyanogenmod

keyguard.no_require_sim=true

ro.url.legal=http://www.google.com/intl/%s/mobile/android/basic/phone-legal.html

ro.url.legal.android_privacy=http://www.google.com/intl/%s/mobile/android/basic/privacy.html

ro.com.google.clientidbase=android-google

ro.com.android.wifi-watchlist=GoogleGuest

ro.setupwizard.enterprise_mode=1

ro.com.android.dateformat=MM-dd-yyyy

ro.com.android.dataroaming=false

ro.cm.version=9-20130307-UNOFFICIAL-protou

ro.modversion=9-20130307-UNOFFICIAL-protou

ro.config.ringtone=CyanTone.ogg

ro.config.notification_sound=CyanMessage.ogg

ro.config.alarm_alert=CyanAlarm.ogg

ro.ril.hsxpa=1

ro.ril.gprsclass=10

ro.adb.qemud=1

dalvik.vm.lockprof.threshold=500

net.bt.name=Android

net.change=net.bt.name

dalvik.vm.stack-trace-file=/data/anr/traces.txt

ro.factorytest=0

ro.serialno=HT2ASLY04309

ro.bootmode=recovery

ro.baseband=1.12.40.03

ro.carrier=TMD

ro.bootloader=1.24.0000

ro.hardware=protou

ro.revision=128

ro.emmc=1

init.svc.choice_fn=stopped

init.svc.detect_key=running

init.svc.rmt_storage=running

ro.9kramdump=0

init.svc.adbd=stopping

init.svc.recovery=running

service.adb.root=1

Running boot script...

sh: write error: Device or resource busy

Finished running boot script.

I:Attempt to load settings from settings file...

I:Version number saved to '/cache/recovery/.version'

I:Unable to mount '/sdcard'

I:Actual block device: '', current file system: 'vfat'

E:Failed to mount external storage, using internal storage.

I:Unable to mount '/sdcard'

I:Actual block device: '', current file system: 'vfat'

I:Switching packages (TWRP)

I:Cannot find file /nobrightness

I:Set page: 'advanced'

I:Set page: 'filemanagerlist'

I:Set page: 'advanced'

I:Set page: 'main'

I:Set page: 'clear_vars'

I:Set page: 'main2'

I:Set page: 'install'

I:Set page: 'flash_confirm'

I:Set page: 'flash_zip'

I:Set page: 'flash_zip'

Installing '/sdcard/Desire_X_1_18_SUBB_deodexed.zip'...

Checking for MD5 file...

Skipping MD5 check: no MD5 file found.

Verifying zip signature...

I:1 key(s) loaded from /res/keys

Verifying update package...

I:verify_file returned 1

E:signature verification failed

Error flashing zip '/sdcard/Desire_X_1_18_SUBB_deodexed.zip'

Updating partition details...

I:Can't probe device /dev/block/mmcblk0p26

E:Unable to mount '/data'

I:Actual block device: '/dev/block/mmcblk0p26', current file system: 'ext4'

I:Set page: 'flash_done'

I:Set page: 'confirm_action'

I:Set page: 'action_page'

Formatting Cache using make_ext4fs...

I:make_ext4fs command: make_ext4fs /dev/block/mmcblk0p27

Done.

I:Recreating /cache/recovery folder.

I:Version number saved to '/cache/recovery/.version'

Updating partition details...

I:Can't probe device /dev/block/mmcblk0p26

E:Unable to mount '/data'

I:Actual block device: '/dev/block/mmcblk0p26', current file system: 'ext4'

I:Set page: 'action_complete'

I:Can't probe device /dev/block/mmcblk0p26

E:Unable to mount '/data'

I:Actual block device: '/dev/block/mmcblk0p26', current file system: 'ext4'

Updating partition details...

I:Can't probe device /dev/block/mmcblk0p26

E:Unable to mount '/data'

I:Actual block device: '/dev/block/mmcblk0p26', current file system: 'ext4'

I:Set page: 'clear_vars'

I:Set page: 'flash_done'

I:Set page: 'clear_vars'

I:Set page: 'install'

I:Set page: 'main'

I:Set page: 'clear_vars'

I:Set page: 'main2'

I:Set page: 'advanced'

I:Set page: 'confirm_action'

I:Set page: 'action_page'

I:Copying file /tmp/recovery.log to /sdcard/recovery.log

sorry for xtralong msg but I don't know how to attach a file......