yep..warranty will be void..but only if the SECS notice tht u'd modded ur phone    just revert all the things to the original state b4 sending ur phone for warranty..

wat do u want to mod? ill try putting up a tuto here...want to revert just use seus..update it then it will be back to original condition..

HOW ABOUT MOD ur sms ringingtone?

HOW ABOUT MOD ur sms ringingtone?

ok..im back... 
@jojo-t
paste this to notepad...then rename the extension from .txt to .vkp



this tuto is for those who first time wanna mod their phn..also, the vkp patch i gave up there is for w810 r4ea031 generic firmware onli..if urs is r4db005 or r4ea031 china, pls google and download from other websites.. to check firmware press >*<<*<* on standby screen..go to service info then software version..
first of all, download seus@'sony ericsson update service' from se official website itself..
just follow all the instructions in seus(no need to update if u don want,we only want to install the drivers needed)
then follow these steps..

1) switch off phone, take out battery and mem stick...download, and run setool2lite(i use v1.01)
2) select phone type w810,make sure interface is usb and speed is 921600
3) in misc files, select the .vkp file
5) connect dcu 60 to comp
6) select write script on setool2lite
7) put battery back to phone, hold 'c' button then connect phone to dcu60
8) wait till some words appear at setool2lite, then release 'c' button
9) follow onscreen instructions(u'll be prompted to take out+reinsert battery and disconnect+reconnect cable)
10)the vkp patching is considered success when it write these "VKP script executed OK
    Elapsed:xx secs."
11)disconnect cable, take out and reinsert battery(wait approx five sec b4 reinsert batt), switch on phn..
p/s:thats the longest post ive ever posted      remember that im not gonna be responsible if u brick ur phn..however, u can always try to do fullfash if something wrong happen.. ..ive done lots of time patching and flashing..the worst ive encountered is wsod..fullflash then everything ok d..

k810? that vkp is for w810 r4ea031 generic onli...wsod = whitescreenofdeath

hav u installed all the drivers? if ure not sure, just use seus..connect ur phone to seus and let it install the drivers..

seus=sony ericsson update service...just a friendly reminder.. u shud google a little bit if u wanna know sumthing..both wsod and seus terms are used alot by modders.. u can download seus from se official website itself..or se-nse, 4shared.com, iprotebe.cz...