Putting the original (or newer) firmware back on a Fonera FON 2.0

During booting, the FON 2200, waits at IP address 192.168.1.1 on port 9000, for a brief moment, to receive an interrupting Control-C. The process of how to get to the bootloader prompt is described in some detail over here: La Fonera 2.0 (FON 2202) Hacking, Cleaning House

Files

The following 3 files are required during re-flashing and need to be made available to the router via TFTP.

• The 2nd stage loader - alternatively, get it here.
• The failsafe image failsafe.image - alternatively, get it here.
• The Fonera 2.0 image flipper.image - alternatively, get it here.

Also, check here for a more current Fonera 2 image: http://download.fonosfera.org

RedBoot Prompt

Here are steps required to put the three files back on the fonera router. Writing to flash takes some time, especially the last step, in which a 4.4 MBytes are written, requires some patience.


#========================================================
# Reset the current flash and the partition table
#========================================================
RedBoot> fis init
About to initialize [format] FLASH image system - continue (y/n)? y
*** Initialize FLASH Image System
... Erase from 0xa87e0000-0xa87f0000: .
... Program from 0x80ff0000-0x81000000 at 0xa87e0000: .


#========================================================
# Tell RedBoot about the TFTP-Server's IP
#========================================================
RedBoot> ip_address -l 192.168.1.1/24 -h 192.168.1.2
IP: 192.168.1.1/255.255.255.0, Gateway: 0.0.0.0
Default server: 192.168.1.2


#========================================================
# write the 2nd stage bootloader into flash
#========================================================
RedBoot> load -r -b %{FREEMEMLO} loader.bin
Using default protocol (TFTP)
Raw file loaded 0x80040400-0x800503ff, assumed entry at 0x80040400


RedBoot> fis create -e 0x80100000 -r 0x80100000 loader
... Erase from 0xa8030000-0xa8040000: .
... Program from 0x80040400-0x80050400 at 0xa8030000: .
... Erase from 0xa87e0000-0xa87f0000: .
... Program from 0x80ff0000-0x81000000 at 0xa87e0000: .


#========================================================
# load into RAM and write the failsafe image into flash
#========================================================
RedBoot> load -r -b %{FREEMEMLO} failsafe.image
Using default protocol (TFTP)
Raw file loaded 0x80040400-0x801803ff, assumed entry at 0x80040400


RedBoot> fis create -f 0xA8660000 image2
... Erase from 0xa8660000-0xa87a0000: ....................
... Program from 0x80040400-0x80180400 at 0xa8660000: ....................
... Erase from 0xa87e0000-0xa87f0000: .
... Program from 0x80ff0000-0x81000000 at 0xa87e0000: .


#========================================================
# load into RAM and write the image (4+ MB) into flash
#========================================================
RedBoot> load -r -b %{FREEMEMLO} flipper.image
Using default protocol (TFTP)
Raw file loaded 0x80040400-0x804b0403, assumed entry at 0x80040400


RedBoot> fis create image
... Erase from 0xa8040000-0xa84b0004: ........................................................................
... Program from 0x80040400-0x804b0404 at 0xa8040000: ........................................................................
... Erase from 0xa87e0000-0xa87f0000: .
... Program from 0x80ff0000-0x81000000 at 0xa87e0000: .
RedBoot>


When the re-flashing is finally done, all what's left to do to is to reboot the router.

Fonera 2.0 UI