[Upgrading, Modifying and Unlocking] Peter Guntes:
Here's the whole logfile (it's kinda short because I reinstalled my kernel):

Starting recovery on Thu Jun 28 01:43:46 2012

framebuffer: fd 4 (320 x 480)

CWM-based Recovery v5.0.2.7

recovery filesystem table

=========================

0 /tmp ramdisk (null) (null)

1 /cache yaffs2 cache (null)

2 /data yaffs2 userdata (null)

3 /system yaffs2 system (null)

4 /sdcard vfat /dev/block/mmcblk0p1 (null)

5 /sd-ext auto /dev/block/mmcblk0p2 (null)

W:Unable to get recovery.fstab info for /datadata during fstab generation!

W:Unable to get recovery.fstab info for /emmc during fstab generation!

I:Completed outputting fstab.

I:Processing arguments.

I:Checking arguments.

I:device_recovery_start()

Command: "/sbin/recovery"

ro.opengles.version=131072

ro.secure=0

ro.allow.mock.location=0

ro.debuggable=1

persist.service.adb.enable=1

ro.semc.version.sw=1250-5829

ro.semc.version.sw_revision=4.0.2.A.0.74

ro.semc.version.sw_variant=GENERIC

ro.semc.version.sw_type=user

ro.factorytest=0

ro.serialno=

ro.bootmode=unknown

ro.baseband=unknown

ro.carrier=unknown

ro.bootloader=unknown

ro.hardware=semc

ro.revision=0

ro.build.date=Wed Oct 19 09:31:26 2011

ro.build.date.utc=1319009486

ro.build.user=SEMCUser

ro.build.host=SEMCHost

ro.build.product=WT19i

ro.build.description=WT19i-user 2.3.4 4.0.2.A.0.62 wf_v3w test-keys

ro.product.brand=SEMC

ro.product.name=WT19i_1254-1848

ro.product.device=WT19i

ro.build.tags=release-keys

ro.build.fingerprint=SEMC/WT19i_1254-1848/WT19i:2.3.4/4.0.2.A.0.62/wf_v3w:user/release-keys

ro.semc.version.cust=1254-1848

ro.semc.version.cust_revision=R2D

ro.product.locale.excluded=he_IL iw_IL ar_IL

ro.config.ringtone=sony_ericsson.ogg

ro.config.notification_sound=notification.ogg

ro.config.alarm_alert=alarm.ogg

ro.semc.content.number=PA1

ro.semc.version.fs_revision=4.0.2.A.0.62

ro.build.id=4.0.2.A.0.62

ro.build.display.id=HYBROMAN v16 by boof

ro.semc.product.model=WT19i

ro.semc.ms_type_id=AAD-3880123-BV

ro.semc.version.fs=WORLD-i

ro.semc.product.name=Live with Walkman

ro.semc.product.device=WT19

ro.product.model=WT19i

ro.build.version.incremental=wf_v3w

ro.build.version.sdk=10

ro.build.version.codename=REL

ro.build.version.release=2.3.4

ro.build.type=user

ro.product.board=

ro.product.cpu.abi=armeabi-v7a

ro.product.cpu.abi2=armeabi

ro.product.manufacturer=Sony Ericsson

ro.product.locale.language=en

ro.product.locale.region=GB

ro.wifi.channels=

ro.board.platform=msm7x30

rild.libpath=/system/lib/libril-qc-1.so

rild.libargs=-d /dev/smd0

persist.rild.nitz_plmn=

persist.rild.nitz_long_ons_0=

persist.rild.nitz_long_ons_1=

persist.rild.nitz_long_ons_2=

persist.rild.nitz_long_ons_3=

persist.rild.nitz_short_ons_0=

persist.rild.nitz_short_ons_1=

persist.rild.nitz_short_ons_2=

persist.rild.nitz_short_ons_3=

DEVICE_PROVISIONED=1

wifi.interface=wlan0

ro.semc.wifi.hostapd=1

persist.ro.ril.sms_sync_sending=1

ro.use_data_netmgrd=true

ro.telephony.call_ring.multiple=false

persist.android.strictmode=0

ro.semc.sols.product-code=94

ro.semc.sols.company-code=5

ro.semc.timescape_keys=Sony_Ericsson_Xperia

ro.semc.batt.capacity=1200

ro.semc.batt.test.z_threshold=50

ro.semc.batt.test.min_level=70

ro.service.swiqi.supported=true

persist.service.swiqi.enable=1

ro.product-res-path=framework/SemcGenericUxpRes.apk

ro.com.google.gmsversion=2.3_r5

ro.setupwizard.mode=DISABLED

ro.com.google.clientidbase=android-sonyericsson

persist.usb.storagemode=msc

keyguard.no_require_sim=true

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

ro.com.android.dataroaming=false

ro.ril.hsxpa=1

ro.ril.gprsclass=10

ro.semc.xloud.supported=true

dalvik.vm.heapsize=62m

ro.sf.lcd_density=160

dalvik.vm.dexopt-flags=m=y

net.bt.name=Android

net.change=net.tcp.buffersize.edge

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

ro.drm.active.num=4

ro.drm.active.0=semc,1

ro.drm.active.1=cmla,0

ro.drm.active.2=viaccess,0

ro.drm.active.3=marlin,1

ro.ril.hep=1

ro.ril.enable.dtm=0

ro.ril.hsdpa.category=28

ro.ril.enable.a53=1

ro.ril.enable.3g.prefix=1

ro.ril.htcmaskw1.bitmask=4294967295

ro.ril.htcmaskw1=14449

ro.ril.hsupa.category=9

net.tcp.buffersize.default=4096,87380,256960,4096,16384,256960

net.tcp.buffersize.wifi=4096,87380,256960,4096,16384,256960

net.tcp.buffersize.umts=4096,87380,256960,4096,16384,256960

net.tcp.buffersize.gprs=4096,87380,256960,4096,16384,256960

net.tcp.buffersize.edge=4096,87380,256960,4096,16384,256960

ro.ril.disable.power.collapse=1

pm.sleep_mode=1

wifi.supplicant_scan_interval=1200

Debug.performance.tuning=1

ro.telephony.call_ring.delay=700

ro.kernel.android.checkjni=0

dalvik.vm.execution-mode=int:jit

mot.proximity.delay=150

ro.lge.proximity.delay=25

ro.mot.eri.losalert.delay=1000

debug.sf.hw=1

video.accelerate.hw=1

windowsmgr.max_events_per_sec=300

persist.sys.use_dithering=0

logcat.live=disable

ro.media.enc.jpeg.quality=100

ro.media.dec.jpeg.memcap=8000000

ro.media.enc.hprof.vid.bps=8000000

media.stagefright.enable-player=true

media.stagefright.enable-meta=true

media.stagefright.enable-scan=true

media.stagefright.enable-http=true

persist.radio.imei=358508047690094

persist.radio.net_pref_0=0

persist.sys.localevar=

persist.sys.country=PL

persist.sys.language=pl

persist.sys.timezone=Europe/Warsaw

persist.sys.boot.sound.volume=100

persist.nvreset.notfirstboot=1

persist.radio.sma_voice_3gpp=0

persist.chargemon.active=1

persist.radio.adb_log_on=0

I:Checking for extendedcommand...

I:Skipping execution of extendedcommand, file not found...

-- Installing: /sdcard/22swap2zram.zip

Finding update package...

I:Update location: /sdcard/22swap2zram.zip

Opening update package...

Installing update...

Installation aborted.

-- Installing: /sdcard/11swap2cache.zip

Finding update package...

I:Update location: /sdcard/11swap2cache.zip

Opening update package...

Installing update...

Installation aborted.

-- Installing: /sdcard/33swap2system.zip

Finding update package...

I:Update location: /sdcard/33swap2system.zip

Opening update package...

Installing update...

Installation aborted.

Here's the video: www24 . zippyshare.com/v/7615404/file.html

I don't think I'm advanced enough to play with adb commands but I hope I'll figure out how to do it properly :) thank you for helping!