MainWindow 0 0 739 497 739 497 739 497 MainWindow 0 update firmware 103 40 81 20 device list 180 80 401 20 190 40 391 22 90 110 501 111 online upgrade 110 30 271 22 400 30 91 23 get version list 400 70 91 23 download and upgrade 10 30 91 20 version list 90 250 501 111 local upgrade 10 30 91 20 file path 110 30 271 20 394 30 101 23 open file path 394 70 101 23 upgrade manager tools 103 50 81 20 device list 200 50 361 22 110 120 81 20 roll count: 200 120 81 21 0 200 150 81 21 0 110 150 81 20 scan count: 200 200 111 31 clear roll count password change 180 90 91 21 old password 180 140 91 21 new password 290 90 191 20 290 140 191 20 350 250 131 31 modify password 290 190 191 20 180 190 91 21 confirm new password Qt::Horizontal 40 20 exit 0 0 739 22