How to install map ? [Solved]

Good day , everybody.
I have a questions about TomTom. I want to install new map on my TomTom , but i don't know how to do that . Please, could someone share to me perfectly clear tutorial how to do that ?
I need map Finland and Lettland ( Latvia ) , no more.
I have TomTom XL. Model (4ET03). Bootloaderversion=5.5285 , 4GB.
Please , help me
Best Regards.

I have same question just UK map and Europe.

You two would be wise to start a bit of reading here.

If you are familiar with the core concepts of navcore, map, mapversion, meta, fastactivate, bootloader etc, you would be on your way to get yourself updated.
Ofcourse you can get info and help here but you might start with helping yourself.

But the short answer is: Download and install map of choice. Run FastActivate options 2 then 3, once completed disconnect and reboot it... Job done, happy driving!

Thank you for information.
I have last question. Could you please help me , which NAVCORE version i need to install?
There information from my TomTom :
Birthday = Monday 17 March 2014, 11:40:54
Image type = MoviNAND 4GB
Application version = 9.540

Bootloader version = 5.5285

You already have the latest navcore so following the instruction from Razorblatter

Thank .
I already downloaded Europe East 960 7056 . So , i need to delete old map and put new map in TomTom , later activate map and it's done?
Thanks u all , i already update and everything is working , big thanks

THanks for the feedback.