Unhappy [Q] Got flash write failure error when writing 'recovery'

Hi,

My phone pop up messages saying some services stopped. So I turned it off and then it stuck in a boot loop circle. (same problem in this thread, http://forum.xda-developers.com/nexu...rcles-t2864835)

First, I tried to enter recovery mode, failed.
then, I tried to fix my recovery ...

Code:
D:\adt-bundle-windows-x86-20140702\sdk\platform-tools>fastboot erase recovery
erasing 'recovery'...
OKAY [  0.351s]
finished. total time: 0.355s

D:\adt-bundle-windows-x86-20140702\sdk\platform-tools>fastboot flash recovery recovery-clockwork-touch-6.0.4.7-mako.img
sending 'recovery' (8838 KB)...
OKAY [  0.492s]
writing 'recovery'...
FAILED (remote: flash write failure)
finished. total time: 0.512s
also tried the latest "openrecovery-twrp-2.7.1.0-mako.img" downloaded from http://techerrata.com/browse/twrp2/mako
same error

Code:
D:\adt-bundle-windows-x86-20140702\sdk\platform-tools>fastboot flash recovery recovery.img
sending 'recovery' (7928 KB)...
OKAY [  0.454s]
writing 'recovery'...
FAILED (remote: flash write failure)
finished. total time: 0.473s

here's the fact about my phone:

- CWM (recovery-clockwork-touch-6.0.4.7-mako.img)
- SuperSU (UPDATE-SuperSU-v1.93.zip)
- rooted before the 4.4.4 update, didn't fix the root after ATO update
- Standard Kernel, no custom ROM.

I did suffer the "randomly turning off" problem before (http://forum.xda-developers.com/nexu...ently-t2077148).


What could be the problem for the flash write failure? Is there any other way to recovery the data?
Many Thanks.