*Hi, we are having a eight-day break from September 28 to October 5, and may not be able to ship out the package and reply to your email on time. Thank you for your kind support.
I see the v57 firmware is available, is there a list of changes in this version?
I reported both spam mails days ago.
V57 fixed the bug that few customers reported rear camera did not record videos.
Installed the V57 on my spare K2 and played around with it a little bit, but have not seen any differences to the V52 yet. Nevertheless, I made a modified V57 and uploaded it to my dropbox.