I have a Tattoo which is having the alarm problems i.e. not waking me in the morning. This is what I've done:
* Checked alarm volume and it's at maximum.
* Deleted all alarms and recreated them and then checked volume again.
* Applies even if the phone is on or off the charger.
* I have no task killers over and above the one that came with the phone.
* I did a hard-reset and returned the phone to factory defaults. Alarm worked fine for a few weeks but is now not sounding in the morning.
* Since reset I've installed nothing so it's a bare Tattoo with as few changes to default as possible. Even before reset I'd only installed two apps more than a year previously.
* All alarm sounds are the built-in sounds - no MP3/WMA sounds.
Before the reset I took it back to Orange and the sales-bod set the alarm for just two minutes in advance and it failed to go off - until she woke up the phone with a button press. Twice.
If the alarm has supposedly gone off but an external event happens like a button press or a phone call then the alarm immediately goes off - even if it's an hour late!!! In the latter event the swipe down answered the phone but didn't dismiss the alarm and there was no mechanism for turning off the alarm whilst taking the call.
At this point I believe it's an Android problem rather than a Tattoo h/w problem. I don't think the Tattoo h/w has any ability beyond a simple clock and the alarm is entirely a function of Android - but I could be wrong.
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