Just don't install those unknown file name end with .sis or .sisx, then everything should be find.
Just use Nokia software updater to upgrade the firmware of your nokia X6.

By the way, I found that after update the V30 it does not show "memory full" warning since V21 will pop-up memory full when I listen to music by lunch music player and together browsing the web using opera mobile 

The new firmware improved the RAM management. That's why.

I don't know how to check free ram 

Cannot download the FW and flash?

ko ko ah, may I know how to check my phone firmware ah? Thanks.

ping, may i know where did u bougt the capdase soft jacket? i m looking for the white colour 1, nobody is selling this model in garage sales.

Anyone of you using bluetooth headset? If yes, what brand you can reco me which I need is can connect with 2 phones. Thanks.

I've noticed today that when i recieve a text message, i don't get a message tone/ alert. I have checked and double checked that the phone is on loud, i have turned the phone off and even taken the battery out, but it hasnt solved a thing! I now only know if i have a message once i have gone in to my inbox! Has anyone else had this problem, and how do i solve it because im getting sooo annoyed with it now! Please help!  It happen again on me       

i solved that by turned the phone off and take the battery out....
but now...
that prob occur again...
cant solve 

updated my X6 16GB to v30.0.003 .... no hiccups whatsoever.. will report if theres problem

my nokia x6 8gb updated to v30.0.003 too. tested, now free ram around 35mb with spb mobile shell running, b4 update the max free ram is 29mb.

mayb mine running spb mobile shell which is consuming a lot of batt.. 

  y mine cannot do it? 

tested, can run fb without pop up d. but the chat function disappear in nokia browser and double post of the msg in opera mobile 

坛子的字幕组

can someone translate this word plz

You cakap apa?

erm actually i try to register some chinese site but i dunno what should i write to reply this question 

no english version?

验证:
well, just now i copy n pasta and it gives me red mark on the side of the bar, usually when enter correct its green 
nope, its a chinese forum

not all forum allowed u to copy n paste. jz show the screen shot so tat ping can help u further

here it is  myb i didn't explain clearly

wait there's more, i just did what u told and gives me wrong sign again :/