Hi Guyz,
I totally screwed up my phone today.

What is happened is, i installed most of the repos, and keep downloading stuffs. after some time everything stopped failing.
Like if i open contacts, i used to get a message that "Internal Error. Operation failed". If i try to send a message then "Internal Error. Operation failed".

So when i observed memory status, Here was the status,
Nokia N900 --> 1GB available
Memory Card --> 88MB available
Memory for installable applications --> 65MB

So i was sure that these failure are because of low memory in Nokia N900 or Memory Installable applications. Could some one tell which one is causing failures for me?

1) I took all backups, connected my phone through USB, formatted
N900
2) Still problem was there, so i decided to flash my device. Installed flasher 3.5 and executed following "flasher-3.5.exe -F RX-51_2009SE_2.2009.51-1.002_PR_COMBINED_002_ARM.bin -f -R"
3) Still no success, so i wanted to flash eMMc so executed "flasher-3.5.exe -F RX-51_2009SE_2.2009.51-1.002_PR_COMBINED_002_ARM.bin -f"
still problem is there.

Please help me how do i get back my device as it was earlier.
In the wiki link, i saw i first need to flash FAISCO image then eMMC. But how? What is FAISCO image and what is eMMC?

Please help me.