I flashed stock SPL over HSPL before flashing back the stock ROM 
X1 will shows the SPL version following by "Loading..." on the LCD whenever power up! (with memory card inside the phone)
My SPL is 0.72.
The phone should be in recovery mode now without valid ROM/OS in it.
I copy an official UK ROM (R2AA010) into the micro SD card and rename it to kovsimg.nbh,
remove the battery for a few sec, insert the SD card with image file and then hold VOL Down button and power button to boot into Flash mode.
Press Power button to begin flashing process.
(Like normal flashing to other ROM after HSPL mod)
The phone should read the ROM image data and reflash back x1.
If this method not working, try to hold Power+VOL Down and press the RESET at the same time until the phone turn into "Rainbow" screen the try again.
This "Rescue method" works for my set but I still advice that MUST flash stock ROM then only follow with SPL!
X1 will shows the SPL version following by "Loading..." on the LCD whenever power up! (with memory card inside the phone)
My SPL is 0.72.
The phone should be in recovery mode now without valid ROM/OS in it.
I copy an official UK ROM (R2AA010) into the micro SD card and rename it to kovsimg.nbh,
remove the battery for a few sec, insert the SD card with image file and then hold VOL Down button and power button to boot into Flash mode.
Press Power button to begin flashing process.
(Like normal flashing to other ROM after HSPL mod)
The phone should read the ROM image data and reflash back x1.
If this method not working, try to hold Power+VOL Down and press the RESET at the same time until the phone turn into "Rainbow" screen the try again.
This "Rescue method" works for my set but I still advice that MUST flash stock ROM then only follow with SPL!
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