Thanks for you help!
I downloaded the following files (it's not the files "yooman" suggested, because I don't have access):
K790_R1EG001_FS_AMERICA_2_RED49.fbn
K790_R1EG001_MAIN_GENERIC_RED49.mbn
Then I added them in the SEtool2Lite under Files window.
Firmware Upgrade Pack: Blank.
MISC files: Blank.
Restore file: Blank.
CDA: Blank.
Change CID to: Current.
Start Address: 44000000 Length: 00020000
Then I pressed Flash, plugged in the cell phone and let it ran.....
When it's finished, the following showed up:
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ChipID:9900,EMP protocol:0301
BOOTROM MODE DETECTED
Speed:921600
OTP LOCKED:1 CID:49 PAF:1 IMEI:3522********** CERT:N/A
FLASH CID:49 COLOR:RED
LDR:061201 1314 HANCXC1329129_DB2020_FLASHLOADER_R2A005
Flash ID check:897E
Flash props sent ok
writing C:\Documents and Settings\KYPH\Desktop\Fix Phone\firmware\R1EG001\K790_R1EG001_FS_AMERICA_2_R ED49.fbn
CURRENT FLASH FILE CID:49
SSW uses complete hash, hash len is:4260
Will flash 213 blocks...
SSW loading returns:0
writing C:\Documents and Settings\KYPH\Desktop\Fix Phone\firmware\R1EG001\K790_R1EG001_MAIN_GENERIC_R ED49.mbn
CURRENT FLASH FILE CID:49
SSW uses complete hash, hash len is:9100
Will flash 455 blocks...
verify block error
last blk:44DA0000,00010000
Elapsed:281 secs.
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I still cannot turned on my phone, why??? All I can tell is it can't verify the blocks. :(