[HD2 Android Q&A, Help & Troubleshooting and Genera] Mtk87:
Hi to all, today my HD2 became mad and stopped on loadscreen: now i have a device with the android logo on it in bootloop, these logacat messages are repeated costantly every 20 seconds or so:

E/keystore( 651): chdir: /data/misc/keystore: No such file or directory
D/AndroidRuntime( 650):
D/AndroidRuntime( 650): >>>>>> AndroidRuntime START com.android.internal.os.Zyg
oteInit <<<<<<
I/AndroidRuntime( 650): Heap size: -Xmx72m
D/AndroidRuntime( 650): CheckJNI is OFF
D/dalvikvm( 650): creating instr width table
E/dalvikvm( 650): Can't open dex cache '/data/dalvik-cache/system@framework@cor
e.jar@classes.dex': No such file or directory
I/dalvikvm( 650): Unable to open or create cache for /system/framework/core.jar
(/data/dalvik-cache/system@framework@core.jar@classes.dex)
D/dalvikvm( 650): Unable to process classpath element '/system/framework/core.j
ar'
E/dalvikvm( 650): Can't open dex cache '/data/dalvik-cache/system@framework@bou
ncycastle.jar@classes.dex': No such file or directory
I/dalvikvm( 650): Unable to open or create cache for /system/framework/bouncyca
stle.jar (/data/dalvik-cache/system@framework@bouncycastle.jar@classes.dex)
D/dalvikvm( 650): Unable to process classpath element '/system/framework/bouncy
castle.jar'
E/dalvikvm( 650): Can't open dex cache '/data/dalvik-cache/system@framework@ext
.jar@classes.dex': No such file or directory
I/dalvikvm( 650): Unable to open or create cache for /system/framework/ext.jar
(/data/dalvik-cache/system@framework@ext.jar@classes.dex)
D/dalvikvm( 650): Unable to process classpath element '/system/framework/ext.ja
r'
E/dalvikvm( 650): Can't open dex cache '/data/dalvik-cache/system@framework@fra
mework.jar@classes.dex': No such file or directory
I/dalvikvm( 650): Unable to open or create cache for /system/framework/framewor
k.jar (/data/dalvik-cache/system@framework@framework.jar@classes.dex)
D/dalvikvm( 650): Unable to process classpath element '/system/framework/framew
ork.jar'
E/dalvikvm( 650): Can't open dex cache '/data/dalvik-cache/system@framework@and
roid.policy.jar@classes.dex': No such file or directory
I/dalvikvm( 650): Unable to open or create cache for /system/framework/android.
policy.jar (/data/dalvik-cache/system@framework@android.policy.jar@classes.dex)
D/dalvikvm( 650): Unable to process classpath element '/system/framework/androi
d.policy.jar'
E/dalvikvm( 650): Can't open dex cache '/data/dalvik-cache/system@framework@ser
vices.jar@classes.dex': No such file or directory
I/dalvikvm( 650): Unable to open or create cache for /system/framework/services
.jar (/data/dalvik-cache/system@framework@services.jar@classes.dex)
D/dalvikvm( 650): Unable to process classpath element '/system/framework/servic
es.jar'
E/dalvikvm( 650): Can't open dex cache '/data/dalvik-cache/system@framework@cor
e-junit.jar@classes.dex': No such file or directory
I/dalvikvm( 650): Unable to open or create cache for /system/framework/core-jun
it.jar (/data/dalvik-cache/system@framework@core-junit.jar@classes.dex)
D/dalvikvm( 650): Unable to process classpath element '/system/framework/core-j
unit.jar'
E/dalvikvm( 650): No valid entries found in bootclasspath '/system/framework/co
re.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/fram
ework/framework.jar:/system/framework/android.policy.jar:/system/framework/servi
ces.jar:/system/framework/core-junit.jar'
W/dalvikvm( 650): JNI_CreateJavaVM failed
E/AndroidRuntime( 650): JNI_CreateJavaVM failed
I/ServiceManager( 531): service 'media.audio_flinger' died
I/ServiceManager( 531): service 'media.player' died
I/ServiceManager( 531): service 'media.camera' died
I/ServiceManager( 531): service 'media.audio_policy' died
I/Netd ( 654): Netd 1.0 starting
I/ ( 653): ServiceManager: 0xad50
E/AudioHardwareQSD( 653): Cannot open /dev/audience_a1026 -1
D/AudioHardwareQSD( 653): set_tpa2018d1_parameters() not present
I/HTC Acoustic( 653): libhtc_acoustic.so version 2.0.1.2.
I/HTC Acoustic( 653): open /system/etc/AdieHWCodecSetting.csv success.
I/HTC Acoustic( 653): ADIE table version: LEO_HTC_20091019
E/HTC Acoustic( 653): Update ADIE table ID 0
E/HTC Acoustic( 653): Update ADIE table ID 2
E/HTC Acoustic( 653): Update ADIE table ID 5
E/HTC Acoustic( 653): Update ADIE table ID 7
E/HTC Acoustic( 653): Update ADIE table ID 8
E/HTC Acoustic( 653): Update ADIE table ID 10
E/HTC Acoustic( 653): Update ADIE table ID 51
E/HTC Acoustic( 653): Update ADIE table ID 53
I/HTC Acoustic( 653): read_adie_para_from_file success.
D/HTC Acoustic( 653): ioctl ACOUSTIC_UPDATE_ADIE success
I/HTC Acoustic( 653): open /system/etc/AudioBTID.csv success.
I/HTC Acoustic( 653): BT ID table version: Vigor_HTC_20110811
D/AudioHardwareInterface( 653): setMode(NORMAL)
I/AudioHardwareQSD( 653): Set master volume to 1.000000
I/CameraService( 653): CameraService started (pid=653)
I/AudioFlinger( 653): AudioFlinger's thread 0xf158 ready to run
D/AudioFlinger( 653): setParameters(): io 1, keyvalue routing=2, tid 659, calli
ng tid 653
I/AudioHardwareQSD( 653): Routing audio to Speakerphone
D/AudioHardwareQSD( 653): Switching audio device to
D/AudioHardwareQSD( 653): Speakerphone
I/AudioHardwareQSD( 653): voice volume 5 (range is 0 to 5)
D/AudioHardwareQSD( 653): Setting in-call volume to 100

I tried reinstalling the OS, wiping dalvik cache, not the factory reset cause i'd like to keep the stuff inside the phone. No restore available :/