我用测试的平台测试呢，结果如下：
Client Version 16.4 - K800 support
**** READING CID STARTED ****
Turn off the phone.
Hold "C" button and plug USB cable.
Phone Attached!
Detected SonyEricsson: K750/D750/W800/W810/W550/Z520/Z530.
Status Ok, OTP Open, CID15, PAF1
IMEI: 048575-55-048575
Phone Color: Red
Phone CID: 36
Operator:
Language:CHINESE
CDA Number:
Firmware Version:R1K001
Phone Model (1):W800c
Phone Model (2):W800c
W800 recognized!
You must use CID36 Flash Files For this phone!
Press "Flash Files" Tab and download free firmware
Execution Time - 00:00:20
Done!
其中有CID为15，CDA Number:为空，这种版本的能刷机升级吗？
參考答案:零售版（RED）CID36的手机都可以刷,你的可以刷,但要先改CDA为大陆行货的CDA102425/3 ,再刷就可以了,可以去IT168的网站下刷机包自己动手刷