lỗi này theo mình , bạn xử lý như thế này xem như thế nào (hy vọng sẽ ok)

1/ Select flash files main+fs

Go to setting tab and check these options

1:Signed mode (Use server for bypass/CSCA)
2:Enable Alternative security bypass
3:complete phone after flash
4:Unlock after flash
5:Perform full unlock instead of usercode reset

Go back to SonyEricson tab

Press Flash Button

then you will see this error
(Loader refuse to start GDFS servicec error:29
Loader GDFS startup failed, that is fatal)

Go back to setting tab and check these options

1:Signed mode (Use server for bypass/CSCA)
2:complete phone after flash

2/ Nếu ko Ok thi thay IC flash thôi
danh sách IC tương đương của sonyericson


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K800i flash ic = 5060M0Y0B0 (Intel) = M39P0R907 (ST)
W850i
K610i
K618i
V630i
W710i
Z610i
Z710i

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W810i flash ic = 5060M0Y0C0 (Intel) = M36P0R907 (ST)
W300i

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Z550i flash ic = M36P0R906 (ST)
K310i
K510i
Z558i
Z530i

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K700i flash ic = 4050L0YTQ1 (Intel)
K300i
K500i
V800i
Z800i

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K750i flash ic = 4050L0YTQ2 (Intel)
W800i

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T610 flash ic = 2100W0YTQ0 (Intel)
T630

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K550i flash ic = 5060MOYOBE (Intel)
W580i

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P990i flash ic = M36W0R604 (ST)

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chúc bạn thành công