How to extract SMSes from a non rooted device with a broken touchscreen?

I have an HTC Wildfire S A510e (Android 2.3.5, not rooted). I want to extract my SMS messages and import them into another device. # Problems: - There is no free space on the internal memory left. No apps such as SMS backup can be installed. - The touchscreen is broken, I cannot unlock the display or use any buttons (e.g. home, back, search). - Device is not rooted. I cannot view the contents of /data/ and thus can't use adb uninstall to free up space. The SMS-database is located in: /data/data/com.android.providers.telephony/databases/mmssms.db ls -l outputs: -rw-rw---- radio radio 977920 2013-03-12 10:12 mmssms.db However, adb pull mmssms.db or cat mmssms.db don't work (Permission denied). Any suggestions?