How unlock htc a510a - HTC WILDFIRE S A510a Unlocked Black

link to your manual below, it will have the alarm delete info.,
press the helpful button

http://gse.gigaset.com/fileadmin/legacy-assets/A31008-M2202-A601-1-UZ19_en_MEA.pdf

SIEMENS Gigaset A510A Manuals

Best I can do is give you a link to a manual. This will at least show you ways to do whatever on your phone.

Good luck.
Semper Fi,
Z

What's your current locked carrier?
You can get an unlock code from your service provider or else try to buy an unlock code from any one of the online unlocking service provider like Unlocking4U.com Here you can unlock your HTC phone at low cost.

To Unlock HTC ARIA Phone use Unlock code...Visit the site
Mobile-unlocker.com/htc-aria/rs2wp9/ get Unlock code and get Free Unlocking instructions at Mobileunlockguide.com/htc-aria
and Unlock it step by step...

I don't think so as your phone does not support 3G.

you can Unlock your HTC evo with imei unlock code. it is very simple and eaisiat way to unlock your HTC evo . get your HTC evo Imei Unlock Code . and use any gsm sim card.
i hope this will help you .

you can Unlock your HTC Elf100 with imei unlock code. it is very simple and eaisiat way to unlock your HTC Elf100 . get your HTC Elf100 Imei Unlock Code . and use any gsm sim card.
i hope this will help you .

To Unlock the HTC Aria Phone Reach here
Wickedunlock.com buy the Unlock code and Unlock it step by step.....

HTC Aria Unlocking InstructionsWarning : Do not enter any wrong unlock codes on your HTC Aria mobile phones. If you enter over a certain amount of wrong unlock codes on your HTC Aria mobile phone, your phone may get hard locked and sometimes become unusable.
1. Switch ON your HTC Aria with a Not ACCEPTED SIM Card.
2. If your HTC Aria asks for a PIN code, then enter your SIM card PIN and press OK.
3. HTC Aria will ask to enter an "unlock code".
4. Enter Unlock Code we send to you.
5. Your HTC Aria is now unlocked.

*NOT ACCEPTED : We mean, to use a Sim card from a network other than the network your HTC Aria is locked to.

you can Unlock your HTC G1 with imei unlock code. it is very simple and eaisiat way to unlock your HTC G1. get your HTC G1 Imei Unlock Code . and use any gsm sim card.
i hope this will help you .

same here