[Android Q&A, Help & Troubleshooting] weberzolee:
OK, after the reboot i rebooted manually to fastboot and flash is succeeded, says the Flash Tool. BUT the tab is bricked with this message:

Boot Failed: EFI Hard Drive

Flash Tool log:

05/11/16 20:35:53.096 INFO : Loading Flash file (C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/pft_flash_wifionly_normal.xml)

05/11/16 20:35:53.096 INFO : GP_Flag is set to 0x80000045

05/11/16 20:35:53.112 INFO : Ready to flash!

05/11/16 20:36:01.583 INFO : Port 1/1: Rebooting BaytrailC0DD6597 in IFWI DnX

05/11/16 20:36:01.583 INFO : Port 1/1: Reboot android device with fastboot cmd ...

05/11/16 20:37:28.470 INFO : Port 1/1: Flashing OS

05/11/16 20:37:28.485 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 flash osloader "C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/efilinux.efi"

05/11/16 20:37:30.654 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 boot "C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/droidboot.img"

05/11/16 20:37:33.259 INFO : Port 1/1: sleep 40000 ms

05/11/16 20:38:13.271 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 oem start_partitioning

05/11/16 20:39:13.705 WARNING: Port 1/1: Process TIMEOUT Failed to execute ""C:/Program Files/Intel/Phone Flash Tool/fastboot.exe" -s BaytrailC0DD6597 oem start_partitioning"

05/11/16 20:39:15.718 WARNING: Port 1/1: Retry to execute fastboot -s BaytrailC0DD6597 oem start_partitioning

05/11/16 20:40:16.071 WARNING: Port 1/1: Process TIMEOUT Failed to execute ""C:/Program Files/Intel/Phone Flash Tool/fastboot.exe" -s BaytrailC0DD6597 oem start_partitioning"

05/11/16 20:40:18.083 ERROR : Port 1/1: Flash failure

05/11/16 20:41:08.952 INFO : Port 1/1: Rebooting BaytrailC0DD6597 in IFWI DnX

05/11/16 20:41:08.952 INFO : Port 1/1: Reboot android device with fastboot cmd ...

05/11/16 20:41:19.311 INFO : Port 1/1: Flashing OS

05/11/16 20:41:19.311 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 flash osloader "C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/efilinux.efi"

05/11/16 20:41:21.402 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 boot "C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/droidboot.img"

05/11/16 20:41:23.905 INFO : Port 1/1: sleep 40000 ms

05/11/16 20:42:03.907 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 oem start_partitioning

05/11/16 20:43:04.337 WARNING: Port 1/1: Process TIMEOUT Failed to execute ""C:/Program Files/Intel/Phone Flash Tool/fastboot.exe" -s BaytrailC0DD6597 oem start_partitioning"

05/11/16 20:43:06.349 WARNING: Port 1/1: Retry to execute fastboot -s BaytrailC0DD6597 oem start_partitioning

05/11/16 20:43:09.499 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 flash /tmp/partition.tbl "C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/partition.tbl"

05/11/16 20:43:11.823 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 oem partition /tmp/partition.tbl

05/11/16 20:43:13.992 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 erase system

05/11/16 20:43:17.611 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 erase cache

05/11/16 20:43:19.889 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 erase config

05/11/16 20:43:22.104 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 erase data

05/11/16 20:43:32.712 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 oem stop_partitioning

05/11/16 20:43:34.833 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 flash ESP "C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/esp.img"

05/11/16 20:43:38.921 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 flash fastboot "C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/droidboot.img"

05/11/16 20:43:41.729 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 flash boot "C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/boot.img"

05/11/16 20:43:44.521 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 flash recovery "C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/recovery.img"

05/11/16 20:43:47.407 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 flash system "C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/system.img"

05/11/16 20:48:00.517 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 flash capsule "C:/Users/Mutee/Desktop/LENOVO_ROM/KITKAT/capsule.bin"

05/11/16 20:48:03.481 INFO : Port 1/1: fastboot -s BaytrailC0DD6597 reboot

05/11/16 20:48:05.563 INFO : Port 1/1: Flash success

What can I do now?