UndeleteSMS can recover deleted SMS messages from a GSM SIM card.
Download the exe file and run it from the Command Prompt.
Q: What kind of hardware is required to use UndeleteSMS?
A: You need a smart card reader that is compatible with the Windows smart card subsystem. You probably also need a Plug-in (GSM SIM card size) to ID-1 (regular smart card size) adapter card, so the SIM card fits into the reader physically. Myself I use a reader called ChipDrive Micro RS232 from Towitoko.
Q: My GSM SIM card reader does not work with UndeleteSMS - how come?
A: Dedicated GSM SIM card readers are usually not compatible with the Windows smart card subsystem.
Q: Where do the erased SMS's end up?
A: They are printed in the Command Prompt window.
Q: What does "message is not in default alphabet  cannot decode" mean?
A: It usually means that the entry is an EMS or MMS instead of an ordinary SMS.
Q: When I double-click on the file a window comes up and disappears immediately. What's wrong?
A: You must run the file from a Command Prompt.
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