I find it today on Haipad's download page: Haipad M701 Android 2.3 version - download page here - description: Haipad M701 ANDROID 2.3固件（三星2G，镁光4G）。此固件是99PAD 派友albertdsh 优化版本。在此感谢albertdsh 对海纳的支持。 本公司欢迎派友优化固件，让更多的派友，体验更快更流畅的系统。 - google translate: Haipad M701 ANDROID 2.3 firmware (Samsung 2G, Micron 4G). This firmware is 99PAD albertdsh optimized version of the Friends School. Like to thank albertdsh support of Heiner. We welcome friends to send optimized firmware, so that more school friends, to experience faster and more smoothly in the system. Haipad M701 HY4G ANDROID2.3 0419 - download page here - description: 此固件是HAIPAD M701 HY 4Gr ANDROID 2.3固件版本，基本功能已经完善。 - google translate: This firmware is HAIPAD M701 HY 4Gr ANDROID 2.3 firmware version, the basic function has been improved. Edit1: Doing a little search, I could find this release from the developer albertdsh from 99pad.com: here I think that the non HY version is an albertdsh mod of the HY version, like it says on Haipad's download page. That's why, it seems that 2G Samsung/4G Micron version has a lot of chinesse stuff and it's rooted, while 4G HY version don´t have chinesse stuff and it isn't rooted . I'll post first impressions later on second post.