hello...i'm new here...
not know much but can 12W13 (e15i) be unlocked?
and can it be flashed with custom rom 2.3 up...without the bootloader?or any other way?maybe?
sorry if i'm mistaken...please help me...
Bootlloader cant be unlocked cuz only lbelow 11W27.but you can still install stock kernel roms.
But first install cwm recovery.
Search in google:roms,kernels x8 xda.on the site there is a list of roms.on the right of rom name says(stock)-stock kernel-YOUR KERNEL,(nAa)-nAa kernel,...BUT FIRST ROOT THE PHONE,INSTALL CWM RECOVERY AND THEN TRY INSTALLING.NOO NEED FOR BOOTLOADER UNLOCK.
EDIT
Ok,download this
http://xdaforums.com/attachment.php?attachmentid=729395&d=1316853490 ,then download root explorer,install it and extract the downloaded zip,then go to extracted and open the folder of extracted zip.open the system,then bin folder and copy all three of them to system/bin and replace with existing files.BUT FIRST MOUNT R/W-LITTLE BUTTON TOP RIGHT.then long press on chargemon and select permissions.select:read,write,execute,read,execute,read,execute.save.DO that to other 2 you pasted witlh chargemon.after that,return to sd card,speed software,extracted,cwm folder and go to system,xbin and copy the sh to system/xbin and replace.you will have to copy sh again because system rejects it the first time:no free memory left.after you copyed sh again,change its permissions to read,write,execute,read,execute,read,execute.then reboot and rapidly press the back button when white Sony ericsson logo appears.
PRESS THANKS BUTTON IF I HELPED YOU,IT ISNT HARD..