Hit problem sony k550i when power on its hit and switch off

The NCK number or code is provided by the Service Provider (SP). It is used to lock the cell phone to the Service Provider's SIM card.
I couldn't find any reliable and free unlocking source for a Sony Ericsson K550i from online. Most of the free offers were looking to be scam with many negative reviews. If you want to unlock your device safe, you need to spend something for it. For example, you can visit Unlock-Zone.com and get the accurate unlock code for your Sony Ericsson K550i at affordable cost. Good luck.

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..............UNLOCKING INSTRUCTIONS..............
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1 - Switch ON your Sony Ericsson K550i without any SIM Card,
2 - Press the left arrow key/button once,
3 - Press the button * twice,
4 - Press the left arrow key/button once,
5 - The message "Personalize with MNC2" will appear, (or you will have displayed an unlock menu, select the lock you want to unlock)
6 - Enter the Unlock Code.

If your Sony Ericsson K550i does not have a left arrow button/key(e.g. Sony Ericsson W950i) and on a few phones(not all) that have a "JOGDIAL" you must press the "down arrow" key/button instead of the "left arrow" key/button for step 2 & 4. We mean by "Down Arrow" to direct the Jogdial down! In the Sony Ericsson W950i and some other models, the down arrow button/key would be located on the side of the phone.

SOURCE: MobileUnlockGuide.com

K550i on off line

To Unlock the Sony Ericsson K550i Mobile from the Network Lock You can use the Unlock Code,You can get the Unlock Code at
http://www.wickedunlock.com/sony-ericsson-k550i/rs11wp9/ and Unlock from the Security lock use the Master Reset Code.

reflash 1000% ok

its phone security lock right??
here is the solution
first run pc se update service of pc suite to make sure ur cell is detectable by pc
1) download xs++ (freeware software)
2) open xs++
3) switch off ur cellphone
4) remove the battery
5) reinsert the battery (dont power on)
6) in xs++ press connect
7) then hold c button
8) then connect ur set using data cable within 30 second
9) when connected it will show that "phone lock code is ----"
thanx

call your local operrator

You can get the unlock code for your Sony Ericsson K550i from www.Theunlockarena.com . This site provides excellent service in unlocking solutions. The unlocking codes provided here are 100% accurate and very affordable. The unlocking process is very simple here. Here are the steps for unlocking Sony Ericsson K550i,1 - Switch ON your Sony Ericsson K550i without any SIM Card,
2 - Press the left arrow key/button once,
3 - Press the button * twice,
4 - Press the left arrow key/button once,
5 - The message "Personalize with MNC2" will appear, (or you will have displayed an unlock menu, select the lock you want to unlock)
6 - Enter the Unlock Code.

software lost.I had this type problem.

i need folder lock for sony ericsson k550i

sonyericsson.com