how can I fastboot from 2.1 to 2.2 ?

---

Hi guys, I'm a newbie. I wanted to know, how can I flash my os from 2.1 to 2.2 .
The main problem is - I dont understand how does the fastboot works. there are img. files. What should I do with them ?

THANK YOU VERY MUCH FOR YOUR USEFUL REPLIES!

do you have rom with fastboot?

do you have fastboot already installed to your pc ?

when yes ,then run these command on androidSDK :

fastboot.exe flash system system.img
fastboot.exe flash boot boot.img
fastboot.exe reboot

but when not :

you have install AndroidSDK and fastboot items and gt540 drivers.

how can I install fastboot rom ?
I read some information, got the links, but I dont understand how to get that rom on my phone.
I understood, that i will have to reflash my rom, cause I have 2.1B baltic, and there's no fastboot on it. Is there any chance that I can install fastboot seperatly?

Look when you reflash with another 2.1 you wont notice anythings changed. It keeps your data. When done just turn phone off then switch on with power and camera held together until a blank screen. Thats fastboot.
Plug phone in whilst on black screen then follow the fastboot instructions in 2nd post

Sent from my GT540 using XDA App

Which rom do you suggest ?
And it would be very great, if you would link the download. Cause I don't wanna **** up system.

Originally Posted by pashinator

When done just turn phone off then switch on with power and camera held together until a blank screen.

I installed a fastboot ROM, then installed the openswift 2.2 ROM last night, and fastboot mode was hold volume up + search while powering on on my gt540f. Camera went into download mode for me.