LENOVO TB-7304I flashing done [USER REPORT] ★★★★★

[bavesore]

LENOVO TB-7304I flashing done.
problem : hung on logo
her is the log:

 Flash files count is :13
 Action : Firmware update.
 Selected Model: Lenovo: Tab 4 Essential(TB-7304I)
 Exe version: NCKBox AndroidMTK 2.9.4
 Scenario: [0]Safe Flash
 Phone must be off with battery inside. 
 Battery must be charged 
 Please insert USB cable now...
 For some phones need to keep "VOL-" button untill inserting USB cable.
 For some phones need to keep "VOL+ and VOL-" button untill inserting USB cable.
 For some phones need to keep "VOL+" button untill inserting USB cable.
 Detected(10) : ?MediaTek USB Port (COM10)? 
 [10] \\?\usb#vid_0e8d&pid_0003#6&be9730f&0&4#{a5dcbf10-6530-11d2-901f-00c04fb951ed} 
 Boot mode: Brom
 BBCHIP: 335 0 ca00
 Using Algo 2.
 Phone detected...Please wait
 Sending DA agent, please wait...
 ----------------------------------------------------
 BaseBand CPU :MT6737M
 BaseBand CPU Secure Version : 05
 BaseBand CPU Bootloader Version : FE
 ----------------------------------------------------
 INT RAM: 128 KB SDRAM
 EXT RAM: 2 GB  DRAM
 ----------------------------------------------------
 EMMC: (116Gb+16384Mb) SAMSUNG 0x514536334d42 
 EMMC FW VERSION: 03:00:00:00:00:00:00:00
 EMMC CID: 150100514536334D42 : 00000000000000
 EMMC UA SIZE: 0x3a3e00000     
 BOOT STYLE: EMMC BOOT
 FULL LENGTH: 0x3a4a00000      [14.572 GB]
 Status: USB_FULL_SPEED
 Detecting high speed port, wait......
 If driver not installed, install high speed port driver.
 If not need high speed port, disable it.
 After repeat opperation.
 Detected(273) : ?MediaTek DA USB VCOM (Android) (COM273)? 
 [273] \\?\usb#vid_0e8d&pid_2001#6&be9730f&0&4#{a5dcbf10-6530-11d2-901f-00c04fb951ed} 
 Backup preloader saved in firmware directory.
 Warning, flashing preloader disabled! 
 If you change android version, preloader must be flashed.
 Starting flash.
 HINT:
 If phone stuck on logo, for some phones help factory reset.
 Select factory reset tab/reset to factory default.
 Wait untill phone will start charging.
 [0]All done.

thanks go to NCK team