At the time of 5200 software update suddenly my phone turned off and not getting on

I advise you backup first the contacts then next is the memory card(If you have).You can all do this using the Nokia PC Suite.
Expect to lose all data and information as you were updating the phone and please be sure that the phone is fully charged.and update through nokia 5200 here http://www.nokia.fr/upload/static/support/nsu/flash/software.html

"No setting found contact your service provider" means you have No Internet Connection.(GPRS).But Don't ever try to do this procedure it is working only 10% in the universe.If you want to update your phone better to contact mobile repairing shop Or Follow the tricks what I've given below.The only thing you have to buy is original USB Cable.

First download and install Pheonix from this link. Nokia Phoenix Service Software 2011 - Download secondly Download flash file from this link Rm-181 file /Rm-174 file.(there are two types of 5200 so,I've given two files, choose what is written in your phone) and install it to C / program files/pheonix.. after finished this installation open pheonix . Inside the interface at the> top left <there you see "File" click there and choose "open file" and then select the approprait Product type i.e "which is written on the back panel inside the battery of every Nokia(Type RM-000).After doing this again at the left top count from "File"1..2..3..the 4th one is "Flashing" press there, when you click there you'll see three sub-menus, just select the "Firmware Update" again you'll see another interface. Look at the product code there should be blank and put your "mouse tool" at the straight end from the "Product Code" there is a Button and choose the code which is written in the back side of your phone. e.g CODE:0000000.if the same code does not found just take one which is higher. After this you can see "Dead phone USB flashing" click that box. Now this is the last stage... Connect your phone with the USB to your PC and let the driver install ...wait for a moment.(If your phone working).Lastly after just finished (In case your phone is Dead, unable to switch on in normal mode start from here) Connect the phone to pc without powering...insert good battery and Click the "Referbish" button after this, a message will prompt you "press power botton" etc. insert charger or press it and wait until the phone will Restart automatically in normal mode 10-15 minutes. If you cannot understand just leave a Comment / Click here1. thanks for visiting fixya. Good luck.

it will not work on a nokia 5200 as it is a java phone, you can do factory reset from setting, or do a software update with nokia software updater online, if your phone is giving problems.
if this dosent solve you need to flash phone from a good service center

how to save gprs setting for nokia5200

Hi: You should connect your phone with PC by usb connection cable . then you should have a Nokia Pc Suit software . In this software you will find an icon for updating software phone . Hit it and you'll get the latest updates for your phone .
P.s . Don't disconnect while updating , that will harm your phone.

it's a software problem of ur phone u need to reinstall ur mobile software...then it will work

INSTALL NEW SOFTWARE FROM NOKIA WEB SITE>>> FIRST INSTALL NOKIA SOFTWARE UPDATER ON UR PC..CONNECT UR PHONE TO PC AND UPDATE THE SOFTWARE

Connect your phone to your Computer and backup all your memos and personal information by selecting "Backup" in Nokia PC Suite. After that download the Nokia Software Updater from Nokia's website: http://nds1.nokia.com/files/support/global/phones/software/NokiaSoftwareUpdaterSetup_it.exe
Use the Nokia Software Updater to update/reinstall your phone's software. Your phone will start working now.

May be the encoding is not proper. Try re-encoding them. A software called Eright super is excellent in encoding videos and its also free. You can download it from the link below
http://www.erightsoft.info/GetFile.php?SUPERsetup.exe

Something similar happened to me. Unfortunately it could not be repaired. I had to buy another phone and now that phone does not want to turn on. It is on "local mode". Whatever that means... The new phone is also a Nokia. I don't think will buy Nokia again.