I have a dead W580i that flashes red when I try to power it up. I got the USB flash drivers from another phone and tried the Unlock/repair step using setool2lt and may have maid it worse.
I found the REPAIRING EROM GUIDES for most sonyericsson phones and tried the following steps:
a.Turn off the phone, remove the battery, sim and memory card,
1.select phone type from phone type drop-down list,
2.press identify
3.reinsurt battery and holding down 2+5 connect the phone
4.press the unlock/repair button
After connecting the phone, I got the following response:
Welcome to SEtool2 ( LITE edition ) v 1.11
supported DB2010/DB2012 CID49/50/51/52, DB2020 CID49/51/52
Loaded 51 flash descriptors
if you like LITE edition - please visit http://www.setool.net and buy FULL.
ChipID:9900,EMP protocol:0301
BOOTROM MODE DETECTED
Speed:921600
Flash ID check:897E
Flash props sent ok
OTP LOCKED:1 CID:51 PAF:1 IMEI:01127100042112 CERT:N/A
FLASH CID:52 COLOR:RED
no ack during gdfs_readvar !
Can't read SCRC unit
Elapsed:92 secs.