This was just posted on the Sprintusers forum and I thought I would post it on here for those having sms/voicemail issues. Here is the link to the original post. SMS ISSUES!! (HTC Is Working On A Fix!) - SprintUsers.com Please watch for any ROM memory leaks that some of us are experiencing as this could render your phone unable to receive sms or voicemail notifications. See here: http://androidforums.com/sprint-htc-hero/12303-low-space.html To check your ROM space go to SD & phone storage in your settings menu. By the way even though the official HTC Issue does not include voicemail I have added it because it was my personal experience that this effects voicemail as well. I believe it is pushed the same way as sms/mms. Issue Title: HTC Hero (A6277) - Unable to receive SMS, cannot be resolved via Hard Reset Posted Date: 10/26/2009 Issue Type: Known Issue Description: An issue has been identified where the Hero by HTC may enter a state where the device is unable to receive SMS and cannot be resolved thru standard troubleshooting up to and including a Hard Reset, ##786, and software reflash. Action: Policy Exchange When the device runs out of available memory a system flag is set indicating that there is no memory available to receive incoming messages. The device requests a retry, and the network will continue resending for 72 hours. Currently there is no field accessible method available to bring a device out of this state, however HTC is working to develop both a short and long term solution that will be communicated when available. The best method of prevention currently is to ensure adequate memory is available on the device to prevent the flag from being set. If the this issue is encountered, follow the steps below: Back up all customer data from the device. Power the device off. Hold the Home and Back buttons then press the End/Power button. Follow the on screen prompt to clear all user data. One the reset is complete, test the ability for the device to receive SMS. This can be done by sending a test message then confirming it has been received via the SMS network tool (Intercarrier/Metcalf/ICSMS). If the issue persists, exchange the device and return the unit via the EFFA process until this article is updated with a solution. We are investigating an additional issue that may cause devices to intermittantly receive an SMS but not display the message to the user. This issue is distinguished from the above in that it is resolved by a soft or hard reset. No exchange is neccesary for the intermittant unable to receive SMS issue, we will post an additional KI when a solution is available.