[Transformer TF300T Q&A, Help & Troubleshooting] kykc:
Story: tf300tg with 9.4.4.40 WW -> 1 click root -> bootloader unlock -> cwm installed -> stock firmware backed up -> cm 9.1.0 installed

Now I'm trying to restore stock firmware back. I've tried to restore backup, wifi not working. I've managed to found this thread (second post here), but also no luck. Here's the log file from cwm:

Starting recovery on Thu Sep 20 17:52:13 2012
can't open /dev/tty0: No such file or directory
framebuffer: fd 3 (1280 x 800)
CWM-based Recovery v5.5.0.4
recovery filesystem table
=========================
0 /tmp ramdisk (null) (null) 0
1 /system ext4 /dev/block/mmcblk0p1 (null) 0
2 /cache ext4 /dev/block/mmcblk0p2 (null) 0
3 /misc emmc /dev/block/mmcblk0p3 (null) 0
4 /staging ext3 /dev/block/mmcblk0p4 (null) 0
5 /boot emmc /dev/block/mmcblk0p5 (null) 0
6 /recovery emmc /dev/block/mmcblk0p7 (null) 0
7 /data ext4 /dev/block/mmcblk0p8 (null) 0

W:Unable to get recovery.fstab info for /datadata during fstab generation!
W:Unable to get recovery.fstab info for /emmc during fstab generation!
W:Unable to get recovery.fstab info for /sdcard during fstab generation!
W:Unable to get recovery.fstab info for /sd-ext during fstab generation!
I:Completed outputting fstab.
I:Processing arguments.
I:Checking arguments.
I:device_recovery_start()
Command: "/sbin/recovery"

ro.secure=1
ro.allow.mock.location=0
ro.debuggable=1
persist.sys.usb.config=mtp,adb
ro.build.id=IMM76I
ro.build.display.id=cm_tf300t-userdebug 4.0.4 IMM76I eng.xplodwild.20120523.001506 test-keys
ro.build.version.incremental=eng.xplodwild.20120523.001506
ro.build.version.sdk=15
ro.build.version.codename=REL
ro.build.version.release=4.0.4
ro.build.date=Wed May 23 00:15:38 CEST 2012
ro.build.date.utc=0
ro.build.type=userdebug
ro.build.user=xplodwild
ro.build.host=barbecue
ro.build.tags=test-keys
ro.product.model=Transformer Prime TF300T
ro.product.brand=asus
ro.product.name=EeePad
ro.product.device=tf300t
ro.product.board=cardhu
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=asus
ro.product.locale.language=en
ro.product.locale.region=US
ro.wifi.channels=
ro.board.platform=tegra
ro.build.product=tf300t
ro.build.description=US_epad-user 4.0.3 IML74K US_epad-9.4.2.21-20120323 release-keys
ro.build.fingerprint=asus/US_epad/TF201:4.0.3/IML74K/US_epad-9.4.2.21-20120323:user/release-keys
ro.build.characteristics=tablet
ro.cm.device=tf300t
ro.carrier=wifi-only
ro.com.android.dateformat=MM-dd-yyyy
wifi.interface=wlan0
wifi.supplicant_scan_interval=15
ro.opengles.version=131072
persist.tegra.nvmmlite=1
ro.epad.model=TF300T
dalvik.vm.heapstartsize=5m
dalvik.vm.heapgrowthlimit=48m
dalvik.vm.heapsize=256m
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.dataroaming=false
ro.cm.version=9.0.0-RC0-tf300t-UNOFFICIAL
ro.modversion=9.0.0-RC0-tf300t-UNOFFICIAL
ro.config.ringtone=CyanTone.ogg
ro.config.notification_sound=CyanMessage.ogg
ro.config.alarm_alert=CyanAlarm.ogg
dalvik.vm.lockprof.threshold=500
dalvik.vm.dexopt-flags=m=y
net.bt.name=Android
net.change=net.bt.name
dalvik.vm.stack-trace-file=/data/anr/traces.txt
ro.factorytest=0
ro.serialno=015d2d426963f60b
ro.bootmode=unknown
ro.baseband=unknown
ro.bootloader=unknown
ro.hardware=cardhu
ro.revision=0
ro.emmc=0
init.svc.recovery=running
init.svc.mischelp=restarting
init.svc.adbd=running
service.adb.root=1

I:Checking for extendedcommand...
I:Skipping execution of extendedcommand, file not found...
I:using /data/media, no /sdcard found.

-- Installing: /sdcard/WW_epad-user-9.4.4.40.zip
Finding update package...
I:Update location: /sdcard/WW_epad-user-9.4.4.40.zip
I:using /data/media, no /sdcard found.
Opening update package...
Installing update...
start to download IMC modem
Start to Downloading
count 5
add file 0 5 1
add file 1 5 2
add file 2 5 4
add file 3 5 4
add file 4 5 4
mknod /dev/ttyACMX0
run command: /system/bin/insmod /system/lib/modules/baseband_usb_chr.ko
Set Com Port
SetComPort m_channel1 com:/dev/ttyACMX0 921600
SetComPort success
Reset modem
cannot open /sys/devices/platform/baseband_xmm_power/xmm_dwd_reset
ErrorText
Synchronized boot fail
Set Com Port
SetComPort m_channel1 com:/dev/ttyACMX0 921600
SetComPort success
Reset modem
cannot open /sys/devices/platform/baseband_xmm_power/xmm_dwd_reset
ErrorText
Synchronized boot fail
Set Com Port
SetComPort m_channel1 com:/dev/ttyACMX0 921600
SetComPort success
Reset modem
cannot open /sys/devices/platform/baseband_xmm_power/xmm_dwd_reset
ErrorText
Synchronized boot fail
Set Com Port
SetComPort m_channel1 com:/dev/ttyACMX0 921600
SetComPort success
Reset modem
cannot open /sys/devices/platform/baseband_xmm_power/xmm_dwd_reset
ErrorText
Synchronized boot fail
Set Com Port
SetComPort m_channel1 com:/dev/ttyACMX0 921600
SetComPort success
Reset modem
cannot open /sys/devices/platform/baseband_xmm_power/xmm_dwd_reset
ErrorText
Synchronized boot fail
Set Com Port
SetComPort m_channel1 com:/dev/ttyACMX0 921600
SetComPort success
Reset modem
cannot open /sys/devices/platform/baseband_xmm_power/xmm_dwd_reset
ErrorText
Synchronized boot fail
Retry too many times!
script aborted (no error message)
script aborted (no error message)E:Error in /sdcard/WW_epad-user-9.4.4.40.zip
(Status 7)
Installation aborted.
I:using /data/media, no /sdcard found.
Signature Check: Enabled
Signature Check: Disabled
Script Asserts: Enabled
Script Asserts: Disabled

Sorry for being such a noob. Can someone tell me what am I doing wrong?