05-08 10:15:49.676    2280-2280/com.android.mms E/SpannableStringBuilder﹕ SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
05-08 10:15:49.702    2280-2358/com.android.mms E/AndroidRuntime﹕ FATAL EXCEPTION: SmsReceiverService
    java.lang.NoClassDefFoundError: com.mediatek.telephony.SmsManagerEx
            at com.mediatek.encapsulation.android.telephony.EncapsulatedSmsManager.divideMessage(EncapsulatedSmsManager.java:58)
            at com.android.mms.transaction.SmsSingleRecipientSender.sendMessage(SmsSingleRecipientSender.java:85)
            at com.android.mms.transaction.SmsReceiverService.sendFirstQueuedMessage(SmsReceiverService.java:393)
            at com.android.mms.transaction.SmsReceiverService.handleSendMessage(SmsReceiverService.java:336)
            at com.android.mms.transaction.SmsReceiverService.access$400(SmsReceiverService.java:99)
            at com.android.mms.transaction.SmsReceiverService$ServiceHandler.handleMessage(SmsReceiverService.java:283)
            at android.os.Handler.dispatchMessage(Handler.java:107)
            at android.os.Looper.loop(Looper.java:194)
            at android.os.HandlerThread.run(HandlerThread.java:60)