Requires root, also don't forget to perform a backup before running!
SMS Limit Unlock is a small and versatile tool that enables you to control and remove Android's built-in SMS limit ("... is sending a large number of SMS messages"). The app fully supports Android 2.1 (Eclair) through 4.3 (Jelly Bean).
While being a good security precaution, many people who need to send multiple SMS messages often find themselves having to approve each message sent manually, making it impossible to send these messages. SMS Limit Unlock enables you to readjust the restriction (both the maximum number of messages and the time period for which the restriction applies), or remove it completely!
Please note that it is highly recommended to perform a backup of your phone before running the unlock process, as the app makes changes to your operating system.
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In SMS Limit Unlock 1.2Recent updates: