Voxtel BD50 dead after flash
 

I have Voxtel BD50 with problem on sensor, it's not work correctly.
this log from my operation...

Device: Voxtel BD50
Checking data, wait...
Action: read flash
Boot...
Press and HOLD Power button now !
Connecting, wait...
Release Power button now !
Boot Done
Set baud...
460800
Set baud Done
Check Flash...
Check Flash Done
Check space...
Reading [flash_part_1_of_2]...
file saved: backup_flash_part_1_of_2_20080322-165200.40X.bin
Flash ID1: 00B00011
Reading [flash_part_2_of_2]...
file saved: backup_flash_part_2_of_2_20080322-165800.40X.bin
Flash ID2: 00B00011
Finished
Remove/Install battery now !
Time used: 744 sec

after I press reset
Device: Voxtel BD50
Checking data, wait...
Action: reset
Boot...
Press and HOLD Power button now !
Connecting, wait...
Release Power button now !
Boot Done
Set baud...
460800
Set baud Done
Check Flash...
Flash1: 00B00011
Flash2: 00B00011
Check Flash Done
Check space...
Reading [eeprom_calibration]...
file saved: backup_eeprom_calibration_20080322-170405.40E.bin
Reading [eeprom_ffs]...
file saved: backup_eeprom_ffs_20080322-170719.40E.bin
Check space Done
Write...
Write Done
Finished
Remove/Install battery now !
Time used: 319 sec

problem not solved
after I flash it
Current device: Voxtel BD50
Done
Loading file v.02...
Voxtel-BD50_Main_P5.2_R10.38_RS_Jan-25-2006.40M.bin loaded
Loading file v.02...
Voxtel-BD50_Flex_P5.2_R10.38_RS_T1.EN.01.40F.bin loaded
Loading file v.02...
Voxtel-BD50_Resourse_P5.2_R10.38_RS_T3.R1.01_En_Ru.40G.bi n loaded
Loading file v.02...
Voxtel-BD50_repair_ffs_reset_defaults.40S.bin loaded
COM6 [VCP3] selected
Device: Voxtel BD50
Checking data, wait...
Action: flash write
Write: Firmware
Write: Flex/Customization
Write: Resource pack
Skip: FFS/File system
Skip: Eeprom
Boot...
Press and HOLD Power button now !
Connecting, wait...
Release Power button now !
Boot Done
Set baud...
460800
Set baud Done
Check Flash...
Flash1: 00B00011
Flash2: 00B00011
Check Flash Done
Check space...
Reading [eeprom_configuration]...
file saved: backup_eeprom_configuration_20080325-144538.40E.bin
Reading [eeprom_calibration]...
file saved: backup_eeprom_calibration_20080325-144543.40E.bin
Check space Done
Write...
Area: Firmware
Erase: Firmware
Write: Firmware
error: can't start write process
error: write stage error: write
Write Fail
Finished
Remove/Install battery now !
Time used: 159 sec
after this operation phone not power

next I repeat flashing but ...
Loading file v.02...
Voxtel-BD50_repair_ffs_reset_defaults.40S.bin loaded
Loading file v.02...
Voxtel-BD50_Resourse_P5.2_R10.38_RS_T3.R1.01_En_Ru.40G.bi n loaded
Loading file v.02...
Voxtel-BD50_Flex_P5.2_R10.38_RS_T1.EN.01.40F.bin loaded
Loading file v.02...
Voxtel-BD50_Main_P5.2_R10.38_RS_Jan-25-2006.40M.bin loaded
COM6 [VCP3] selected
Device: Voxtel BD50
Checking data, wait...
Action: flash write
Write: Firmware
Write: Flex/Customization
Write: Resource pack
Write: FFS/File system
Skip: Eeprom
Boot...
Press and HOLD Power button now !
Connecting, wait...
Release Power button now !
Boot Done
Set baud...
460800
Set baud Done
Check Flash...
Flash1: 00FF00FF
error: Flash chip problem, unknown flash chip
Check Flash Fail
Finished
Remove/Install battery now !
Time used: 41 sec
what's maybe?

p.s. Where located Flash1: 00FF00FF in PCB? If some know please type this flash name.