Hi, I erased the uboot and now I receive nothing from serial console. Shorting to ground pin 12 output this (not always):

###### INIC start #######
SDRAM_CFG0 = 0x00000000,from eeprom =0x28
SDRAM_CFG1 = 0x00000000,from eeprom =0x2C
SDRAM_CFG0 = 0xd1925282,from real addr
SDRAM_CFG1 = 0xc0000600,from real addr

The SDRAM config value get from default define

2M (16 bits, 8 column,  11 Row)

=========================================
             ON-CHIP BootCode
=========================================
Running PCI Host Mode
0x0000 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0010 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0020 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0030 : 82 82 82 82

There is not MDIO setting value under the eeprom
tx_ring = 881f0000, rx_ring = 881f0050, NetRxPackets = a81f0080, packet = a81f1280

MDIO Config ,On RT2880_MDIO_CFG_R set = 0x21015C45

Some questions:

1- what means this info?

2- have this router uart boot mode an, if yes, how to activate it?

3- have this router-board jtag and, if yes, where?

4- its possible to debrick it anycase?

5- its easy to solder a new flash with rigth uboot (which I have from gpl source)? And how?

6- Can anyone send me a new flash with right uboot? (if 5 its not so easy)

Any other possibility will be joyfully read.

Thank you