p20000+ tablet hang 100% ok nand 6571

Action : Format UserData.
Selected 0-By CPU:MT6571_NAND
Exe version: Avengers Box MTK 0.2.4
Reinsert phone battery.
Battery must be charged.
Phone must be off with battery inside.
Please insert USB cable now...
Detected : MediaTek PreLoader USB VCOM (Android) (COM5)
Phone detected...Please wait
Sending DA agent, please wait...
BaseBand CPU :MT6571_S00
BaseBand CPU Secure Version : FF
BaseBand CPU Bootloader Version : 01
----------------------------------------------------
INT RAM: 128 KB SDRAM
EXT RAM: 256 MB DRAM
----------------------------------------------------
NAND: (4Gb+2048Mb) [Micron] NAND_MT29C4G48MAAHBAAKS_5WT
BOOT STYLE : NAND BOOT
Size: 0x20000000 [0.500 GB]
BlockSize: 4096 SpareSize: 208 BMT Blocks 80
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.
Detecting high speed port, wait......
Detected : MediaTek DA USB VCOM (Android) (COM6)
Searching partiton table, wait..
[0]Part: þ÷ Begin: 0x7067713030a4f31 Len: 0x6dba303b
[0]Part: PRELOADER Begin: 0x0 Len: 0x100000
[1]Part: PRO_INFO Begin: 0x100000 Len: 0x100000
[2]Part: NVRAM Begin: 0x200000 Len: 0x300000
[3]Part: PROTECT_F Begin: 0x500000 Len: 0x300000
[4]Part: SECCFG Begin: 0x800000 Len: 0x40000
[5]Part: UBOOT Begin: 0x840000 Len: 0x80000
[6]Part: BOOTIMG Begin: 0x8c0000 Len: 0x600000
[7]Part: RECOVERY Begin: 0xec0000 Len: 0x600000
[8]Part: SEC_RO Begin: 0x14c0000 Len: 0x40000
[9]Part: MISC Begin: 0x1500000 Len: 0xc0000
[10]Part: LOGO Begin: 0x15c0000 Len: 0x100000
[11]Part: EXPDB Begin: 0x16c0000 Len: 0x200000
[12]Part: FAT Begin: 0x18c0000 Len: 0x1400000
[13]Part: ANDROID Begin: 0x2cc0000 Len: 0x10900000
[14]Part: CACHE Begin: 0x135c0000 Len: 0x180000
[15]Part: USRDATA Begin: 0x13740000 Len: 0xba40000
[16]Part: BMTPOOL Begin: 0xffff0038 Len: 0x0
Offset: 0x1f158000 Count: 17
Detecting format adress....wait!
FORMAT NAND FLASH : BEGIN: 0x11a20000 - LEN: 0x3c00000
FORMAT NAND FLASH : BEGIN: 0x15620000 - LEN: 0x9fa0000
Wait untill phone will start charging.
All done.