DD-WRT Hardware Support Notes 
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Note: Please read the flashing notes relevant to your hardware. 

1.) DD-WRT supported/tested router hardware versions 
Router:               Serial Number prefixes: 
Linksys  WRT54G 1.0   CDF0xxx or CDF1xxx 
Linksys  WRT54G 1.1   CDF2xxx or CDF3xxx 
Linksys  WRT54G 2.0   CDF5xxx 
Linksys  WRT54G 2.2   CDF7xxx 
Linksys  WRT54G 3.0   CDF8xxx 
Linksys  WRT54G 3.1   CDF9xxx 
Linksys  WRT54G 4.0   CDFAxxx 
Linksys  WRT54G 5.0   (JTAG only with cfe update, see http://wrt-wiki.bsr-clan.de/index.php?title=Flash_Your_Version_5_WRT54G)
Linksys  WRT54GL 1.0  CL7Axxx 
Linksys  WRT54GL 1.1  CL7Bxxx

Linksys  WRT54GS 1.0  CGN0xxx or CGN1xxx 
Linksys  WRT54GS 1.1  CGN2xxx 
Linksys  WRT54GS 2.0  CGN3xxx 
Linksys  WRT54GS 2.1  CGN4xxx 
Linksys  WRT54GS 3.0  CGN5xxx 
Linksys  WRT54GS 4.0  CGN6xxx 

Allnet   ALL0277 
Buffalo  WHR-G54S 
Buffalo  WHR-HP-G54S 
Buffalo  WBR-G54
Buffalo  WLA-G54
Buffalo  WBR2-G54
Buffalo  WBR2-G54S
Buffalo  WZR-RS-G54
Belkin   F5D7130/7330 (2mb flash)
Belkin   F5D7230-4 v1444 (2mb flash)
Belkin   F5D7230-4 v1000 
ASUS     WL500G-Deluxe 
Motorola WR850G/GP      --> see flashing notes below 
Siemens  Gigaset SE505  --> see flashing notes below 
Ravo     W54-RT         --> see flashing notes for SE505 v1 (identical to SE505 v1) 
Askey    RT210W         --> see flashing notes for SE505 v1 (identical to SE505 v1) 


3.) Linksys WRT54G/GS (any version) flashing notes: 
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-For upgrading from the original Linksys firmware, please use the generic mini version (dd-wrt.vXX_mini_generic.bin) and flash it from the web GUI interface.  After this first flashing you can change to any other distribution, if you want. 
-For flashing via the web GUI interface, always use the included 'generic' binaries. The other Linksys router specific binaries are only meant for tftp upgrades. 


4.) Motorola WR850G flashing notes: 
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-Just use the dd-wrt.v23_mini_moto.bin for initial flashing of the motorola device using the boot wait state. 
-WARNING: Never, and I say never try to clear the nvram by the mtd utility. (mtd erase nvram).  This will also delete your hardware MAC adresses which aren't stored in the CFE like in other routers. 
-DD-WRT itself prevents this if a Motorola router is detected, but the commandline mtd utility can still brick your router in this case 

5.) Siemens Gigaset SE505 Flashing notes: 
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-For flashing the Siemens Gigaset SE505, you have to use the dd-wrt.v23_mini_generic.bin with boot tftp on 192.168.2.1 
-Since the Siemens default settings do not fit to the Linksys/dd-wrt settings you must additionally check your configuration details after flashing.