да верно так и делал только в низу flow control выбираю none, тут созвонился с приятелем он подсказал поиграться со скоростями.
115200 возможно не подходит.
апд: у меня putty англ. версия...
апд2: 57600 подошло, в Terminal v1.9b и в putty, вижу
Скрытый текст
U-Boot 1.1.3 (Mar 31 2011 - 18:31:42)
Board: Ralink APSoC DRAM: 16 MB
relocate_code Pointer at: 80fb4000
spi_wait_nsec: 42
spi device id: c2 20 16 c2 20 (2016c220)
find flash: MX25L3205D
raspi_read: from:30000 len:1000
.*** Warning - bad CRC, using default environment
============================================
Ralink UBoot Version: 3.5.2.0
--------------------------------------------
ASIC 5350_MP (Port5<->None)
DRAM_CONF_FROM: Boot-Strapping
DRAM_TYPE: SDRAM
DRAM_SIZE: 128 Mbits
DRAM_WIDTH: 16 bits
DRAM_TOTAL_WIDTH: 16 bits
TOTAL_MEMORY_SIZE: 16 MBytes
Flash component: SPI Flash
Date:Mar 31 2011 Time:18:31:42
============================================
icache: sets:256, ways:4, linesz:32 ,total:32768
dcache: sets:128, ways:4, linesz:32 ,total:16384
##### The CPU freq = 360 MHZ ####
estimate memory size =16 Mbytes
Please choose the operation:
1: Load system code to SDRAM via TFTP.
2: Load system code then write to Flash via TFTP.
3: Boot system code via Flash (default).
4: Entr boot command line interface.
7: Load Boot Loader code then write to Flash via Serial.
9: Load Boot Loader code then write to Flash via TFTP.
0
3: System Boot system code via Flash.
## Booting image at bc050000 ...
raspi_read: from:50000 len:40
. Image Name: Linux Kernel Image
Created: 2014-05-22 17:40:20 UTC
Image Type: MIPS Linux Kernel Image (lzma compressed)
Data Size: 3451065 Bytes = 3.3 MB
Load Address: 80000000
Entry Point: 8027e000
raspi_read: from:50040 len:34a8b9
..................................................... Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
No initrd
## Transferring control to Linux (at address 8027e000) ...
## Giving linux memsize in MB, 16
Starting kernel ...
теперь дело за малым насколько я понял, очистить флеш, и залить прошивку от Zyxel Keenetic 4g