I had used the mods by jollyrogerxp many years ago to limit gain and to change NTSC to PAL models. Turns out that the HV20.com site is no longer in existence.

I'd like to upload the hack files for archival purposes.

Links :-

Canon Firmware Decryption Tools

https://github.com/protyposis/CanonCamcorderFirmwareTools

https://protyposis.net/blog/decrypting-canon-camcorder-firmware-updates/#comment-128

From Time Machine :-)

http://web.archive.org/web/20100727174315/http://hv20.com/showthread.php?t=20098

Features:

• PAL/NTSC region change
• Zero gain option
• LCD Flip option

Flip hack firmware tested successfully, available here!

PLEASE NOTE: even if you have region-switched your camera with the other firmware hack, you must use the proper version for your camera. The NTSC version is for original NTSC ('Vixia' & 'iVIS') HV30s, the PAL version is for PAL ('Legria') cams.

LCD Flip Firmware — NTSC Cameras Download link: http://hv20.info/yopu/HV30_Modified_Firmware_v1_1b.zip

LCD Flip Firmware — PAL Cameras Download link: http://hv20.info/yopu/HV30_Modified_..._v1_1b_PAL.zip

Region Change firmware hack is here!

Our fearless leader has agreed to host the 'patched' firmware here at HV20.com. It's here! Follow this link to download:

Region Change Firmware Download link: http://hv20.info/yopu/HV30_Region_Hack_v1_0.zip

WARNINGS: For the moment, these firmware modifications are only known to work on the HV30. Attempting to install either on any other model might well brick your cam. These are non-factory-authorized, use-at-your-own risk, version 1.0 firmware modifications. Installing either may void your warranty. Be sure to carefully read and follow jollyrogerxp's instructions. You will also need to download the "official" HV30 firmware update from Canon.

These hacks may also work with the HV20, however there is a significant risk they may brick the camera. A partially-broken HV20 has been purchased from the hack fund for Jolly to experiment with.

BELOW IS THE OLD STATUS FROM FEB 2010:

Check the main thread, and 5.1) WIKI: http://chdk.wikia.com/wiki/HF10/100_Firmware_Analysis 5.2) WIKI: http://chdk.wikia.com/wiki/HV20 5.3) WIKI: http://chdk.wikia.com/wiki/HV30_Firmware_Analysis