Hi Just now i tested it again.. I installed v6.2 and upgraded to v6.3 without any problem.. Try to read the pdf instruction, section: SOLVING installation problem (some options)
error setting permissions of `./home/user/MyDocs/Documents/N9_QuickTweak_ru_v6.2.pdf': Operation not permitted
error setting permissions of `./home/user/MyDocs/Documents/N9_QuickTweak_ru_v6.3.pdf': Operation not permitted