Thanks for your reply. Unfortunatly the boot process doesn't go that further and it never reaches the boot menu, here's what I can see from the console (i cut out the first part): U-Boot 2012.10-00077-g89d3a3e (Mar 18 2014 - 13:11:33)DRAM:  1 GiBWARNING: Caches not enabledNAND:   Micron MT29F2G08ABAEA, 128 KiB blocks, 2 KiB pages, 16B OOB, 8-bitNAND:   chipsize 256 MiBIn:    serialOut:   serialErr:   serialarm_clk=1000MHz, axi_clk=499MHz, apb_clk=124MHz, arm_periph_clk=500MHzNet:   Registering ethBroadcom BCM IPROC Ethernet driver 0.1Using GMAC0 (0x18022000)et0: ethHw_chipAttach: Chip ID: 0xdc14; phyaddr: 0x1serdes_reset_core pbyaddr(0x1) id2(0xf)bcmiproc_eth-0boot in 3 sCreating 1 MTD partitions on "nand0":0x000000200000-0x00000f000000 : "mtd=4"/image1 not found!ubifsload - load file from an UBIFS filesystemUsage:ubifsload [bytes]     - load file 'filename' to address 'addr'Wrong Image Format for bootm commandERROR: can't get kernel image!Saving Environment to NAND...Erasing Nand...Erasing at 0x160000 -- 100% complete.Writing to Nand... done/image2 not found!ubifsload - load file from an UBIFS filesystemUsage:ubifsload [bytes]     - load file 'filename' to address 'addr'Wrong Image Forat for bootm commandERROR: can't get kernel image!u-boot>  I tried to set both flash1 and flash2 but with no luck, I tried to setup a tftp server on my PC and use it but it seems it wont use it, I tried the tftpboot command and it gave me this error: u-boot> tftpboot ERROR: Ethernet external port not connectedat bcmiproc_eth.c:124/bcmiproc_eth_open() I guess it doesn't bring up the interfaces? Don't know if it's any usefull now but I think I discovered what caused the problem, a new firmware has been uploaded on top of the active one instead of the backup (which I gust could be empty), then the switch has been reset but during the boot the operator enter the boot menu and selected the option to format the switch (last one if I remember correctly)
How to recover a N2048P from uBoot menu, the switch has all the ports light on and display status 01
N2048P from uBoot menu