How to format

Problem:

How to format K800i, i already tried to 'Master Reset" the phone , But still 'Operation Failed' when i open the GAMES and APPLICATION Folders, is it mean the phone should be formatted and reprogrammed, where and how can i get the program if this is the case.

Solution:

1. Why don't you try "Sony Ericsson Update Service"you can visit and see the Requirements and how to use it if you don't know in the official site:
2. Although this is not a solution, I now know the cause of our problem.After a bit of further investigation, I found that this is a hardware problem mostly caused by water damage.a small connection lint corrodes or burns through. This can happen some time after the actual exposure to moisture at which point the phone will start with this problem. It seems as if this is a very common problem with the K800i.I hope this helps all you frustrated K800i owners out there.

k800i puk code?

Problem:

k800i puk code?

Solution:

1. Enter the wrong securuty code 3 times. Phone then asks for P.U.K. Code :- This is an 8 digit code that should be somewhere in the documentation that came with the phone. If you can't find in in docs. make sure you've registered your Sim-Card with the network & you can log on to the networks home page (via PC) then you'll find under the support or help tab an option that says unlock phone, select this it'll then ask you to enter your Phone number, do this & it'll generate ur PUK Code, enter the code it gives you on your phone.Only other way is to ring ur networks customer services from another network or a land-line & ask for your PUK Code they'll ask for your Phone number then give you the correct code, enter the code they give you.BUT BE CAREFUL IF YOU ENTER THE PUK CODE INCORRECTLY 10 TIMES IT'LL BLOCK YOUR SIM-CARD COMPLETELY & YOU'LL NEED TO BUY A NEW SIM.
2. Complete information :The SIM card protects your subscription and not the phone from unauthorised users. If you change SIM cards you can still use your phone with a new SIM card. Most SIM cards are blocked at the time of purchase. If your SIM card lock is on you have to enter your PIN (Personal Identity Card) every time you turn on the phone.If you enter the wrong password three times in a row the SIM card gets blocked. This is indicated by the message PIN Blocked To unblock this you need to enter your PUKNote: card (Personal Unblocking Key). Your PIN and PUK is supplied by your service provider. You can edit your PIN and select a new four to eight digit number
   If the Message Codes do not match appears when you edit your PIN you entered the new PIN incorrectly.
   If the message Wrong PIN followed by Old PIN appears then it means that you have entered the old PIN incorrectly.To unblock your SIM card:
   When PIN Blocked appears enter your PUK > OK
   Enter a new four to eight PIN > OK
   Re-enter the new PIN to confirm > OKTo edit your PIN:
   > Settings > the General tab > Security > Locks > SIM Protection > Change PIN
   Enter your PIN > OK
   Enter a new four to eight digit PIN to confirm > OKTo turn the SIM card On /Off
   > Settings > the General tab > Security > Locks > SIM Protection > Protection and select On or Off
   Enter your PIN > OK