We have released a Volume Boost patch for the iPhone 2.1 firmware. You can install the patch via the iClarified Cydia Repository.
The Volume Boost (2.1.0) patch modifies the plists which set the Maximum Volume Limits on the iPhone. Those that live in regions which have legal limitations on volume will notice the most improvement. Remember the iPhone speaker is still quite weak so don't expect any miracles; however, you will see an improvement.
If you do not have the iClarified repo in your list of sources, you can find instructions on how to add it here.
The Volume Boost (2.1.0) patch modifies the plists which set the Maximum Volume Limits on the iPhone. Those that live in regions which have legal limitations on volume will notice the most improvement. Remember the iPhone speaker is still quite weak so don't expect any miracles; however, you will see an improvement.
If you do not have the iClarified repo in your list of sources, you can find instructions on how to add it here.