Samknows whitebox 8(SamKnows SK-WB8) cant flash

Hi , yesterday i received a new SamKnows SK-WB8 wich can be flashed via ttl to be able to use it as a routre, it used to be sent with a openwrt fork in the past and now a days with a lede one. the problem is that the one with lede only post through serial , i cant trasmit the "f + enter" to enter in failsafe mode and flash it, the serial ttl adapter works fine with the openwrt one and with my arduinos. the soldering and conections are correct as ive done with a polimeter the bip with short-circuit method. also i was able to see an ssh through port 2222 but it is only accesible with a public key.

here is the bootlog:

>`===================================================================
                MT7621   stage1 code Mar 12 2015 14:43:30 (ASIC)
                CPU=500000000 HZ BUS=125000000 HZ
==================================================================
Change MPLL source from XTAL to CR...
do MEMPLL setting..
MEMPLL Config : 0x31100000
3PLL mode + External loopback
=== XTAL-40Mhz === DDR-800Mhz ===
PLL3 FB_DL: 0x0, 1/0 = 907/117 01000000
PLL2 FB_DL: 0x7, 1/0 = 598/426 1D000000
PLL4 FB_DL: 0x9, 1/0 = 514/510 25000000
do DDR setting..[01F40000]
Apply DDR2 Setting...(use customer AC)
          0    8   16   24   32   40   48   56   64   72   80   88   96  104  112                                                                                        120
      ----------------------------------------------------------------------------                                                                                      ----
0000:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0001:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0002:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0003:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0004:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0005:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0006:|    0    0    0    0    0    0    0    0    0    0    0    0    0    1    1                                                                                          1
0007:|    0    0    0    0    0    0    1    1    1    1    1    1    1    1    1                                                                                          1
0008:|    1    1    1    1    1    1    1    1    1    1    1    1    0    0    0                                                                                          0
0009:|    1    1    1    1    1    0    0    0    0    0    0    0    0    0    0                                                                                          0
000A:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
000B:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
000C:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
000D:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
000E:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
000F:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0010:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0011:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0012:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0013:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0014:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0015:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0016:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0017:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0018:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
0019:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
001A:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
001B:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
001C:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
001D:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
001E:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
001F:|    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0                                                                                          0
DRAMC_DQSCTL1[0e0]=1A000000
DRAMC_DQSGCTL[124]=80000000
rank 0 coarse = 8
rank 0 fine = 48
B:|    0    0    0    0    0    1    1    1    0    0    0    0    0    0    0                                                                                          0
opt_dle value:6
DRAMC_DDR2CTL[07c]=40001263
DRAMC_PADCTL4[0e4]=00000005
DRAMC_DQIDLY1[210]=09080709
DRAMC_DQIDLY2[214]=03050407
DRAMC_DQIDLY3[218]=0A060907
DRAMC_DQIDLY4[21c]=09060906
DRAMC_R0DELDLY[018]=00002B2A
==================================================================
                RX      DQS perbit delay software calibration
==================================================================
1.0-15 bit dq delay value
==================================================================
bit|     0  1  2  3  4  5  6  7  8  9
--------------------------------------
0 |    9 5 7 7 5 3 4 3 6 7
10 |    4 9 4 9 5 7
--------------------------------------

==================================================================
2.dqs window
x=pass dqs delay value (min~max)center
y=0-7bit DQ of every group
input delay:DQS0 =42 DQS1 = 43
==================================================================
bit     DQS0     bit      DQS1
0  (2~83)42  8  (1~84)42
1  (1~80)40  9  (1~81)41
2  (1~82)41  10  (1~81)41
3  (1~80)40  11  (1~84)42
4  (1~80)40  12  (1~82)41
5  (1~81)41  13  (2~84)43
6  (1~81)41  14  (1~83)42
7  (1~84)42  15  (1~82)41
==================================================================
3.dq delay value last
==================================================================
bit|    0  1  2  3  4  5  6  7  8   9
--------------------------------------
0 |    9 7 8 9 7 4 5 3 7 9
10 |    6 10 6 9 6 9
==================================================================
==================================================================
     TX  perbyte calibration
==================================================================
DQS loop = 15, cmp_err_1 = ffff0000
dqs_perbyte_dly.last_dqsdly_pass[0]=15,  finish count=1
dqs_perbyte_dly.last_dqsdly_pass[1]=15,  finish count=2
DQ loop=15, cmp_err_1 = ffff0000
dqs_perbyte_dly.last_dqdly_pass[0]=15,  finish count=1
dqs_perbyte_dly.last_dqdly_pass[1]=15,  finish count=2
byte:0, (DQS,DQ)=(8,8)
byte:1, (DQS,DQ)=(8,8)
DRAMC_DQODLY1[200]=88888888
DRAMC_DQODLY2[204]=88888888
20,data:88
[EMI] DRAMC calibration passed

===================================================================
                MT7621   stage1 code done
                CPU=500000000 HZ BUS=125000000 HZ
===================================================================


U-Boot 1.1.3 (Jan 15 2016 - 09:47:18)

Board: Ralink APSoC DRAM:  128 MB
relocate_code Pointer at: 87fb8000

Config XHCI 40M PLL
******************************
Software System Reset Occurred
******************************
flash manufacture id: ef, device id 40 18
find flash: W25Q128BV
============================================
Ralink UBoot Version: 4.3.0.0
--------------------------------------------
ASIC MT7621A DualCore (MAC to MT7530 Mode)
DRAM_CONF_FROM: Auto-Detection
DRAM_TYPE: DDR2
DRAM bus: 16 bit
Xtal Mode=3 OCP Ratio=1/4
Flash component: SPI Flash
Date:Jan 15 2016  Time:09:47:18
============================================
icache: sets:256, ways:4, linesz:32 ,total:32768
dcache: sets:256, ways:4, linesz:32 ,total:32768

 ##### The CPU freq = 880 MHZ ####
 estimate memory size =128 Mbytes
#Reset_MT7530

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.

You choosed 3
                                                                                0
bootcount: 0

3: System Boot system code via Flash.
Erasing SPI Flash...
.
Writing to SPI Flash...
.
done
## Booting image at bc050000 ...
   Image Name:   MIPS LEDE Linux-4.4.79
   Image Type:   MIPS Linux Kernel Image (lzma compressed)
   Data Size:    1665765 Bytes =  1.6 MB
   Load Address: 80001000
   Entry Point:  80001000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
No initrd
## Transferring control to Linux (at address 80001000) ...
## Giving linux memsize in MB, 128

Starting kernel ...

[    0.000000] Linux version 4.4.79 (samknows@toolchain1) (gcc version 5.4.0 (LEDE                                                                                       GCC 5.4.0 r3436+83-2da512e) ) #0 SMP Tue Aug 1 07:07:43 2017
[    0.000000] SoC Type: MediaTek MT7621 ver:1 eco:3
[    0.000000] bootconsole [early0] enabled
[    0.000000] CPU0 revision is: 0001992f (MIPS 1004Kc)
[    0.000000] MIPS: machine is SamKnows Whitebox 8
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 08000000 @ 00000000 (usable)
[    0.000000] Initrd not found or empty - disabling initrd
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000]   HighMem  empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
[    0.000000] VPE topology {2,2} total 4
[    0.000000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[    0.000000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[    0.000000] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[    0.000000] PERCPU: Embedded 11 pages/cpu @8110c000 s13664 r8192 d23200 u45056
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages                                                                                      : 32512
[    0.000000] Kernel command line: console=ttyS0,57600 rootfstype=squashfs,jffs2
[    0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Writing ErrCtl register=000400a0
[    0.000000] Readback ErrCtl register=000400a0
[    0.000000] Memory: 123972K/131072K available (3958K kernel code, 269K rwdata,                                                                                       940K rodata, 260K init, 261K bss, 7100K reserved, 0K cma-reserved, 0K highmem)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:256
[    0.000000] clocksource: GIC: mask: 0xffffffffffffffff max_cycles: 0xcaf478abb4                                                                                      , max_idle_ns: 440795247997 ns
[    0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idl                                                                                      e_ns: 4343773742 ns
[    0.000009] sched_clock: 32 bits at 440MHz, resolution 2ns, wraps every 4880645                                                                                      118ns
[    0.015511] Calibrating delay loop... 586.13 BogoMIPS (lpj=2930688)
[    0.080737] pid_max: default: 32768 minimum: 301
[    0.090059] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.103074] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.118241] Performance counters: mips/1004K PMU enabled, 2 32-bit counters ava                                                                                      ilable to each CPU, irq 9
[    0.139921] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[    0.139934] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[    0.139948] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[    0.140128] CPU1 revision is: 0001992f (MIPS 1004Kc)
[    0.248300] Synchronize counters for CPU 1: done.
[    0.268404] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[    0.268411] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[    0.268418] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[    0.268495] CPU2 revision is: 0001992f (MIPS 1004Kc)
[    0.368514] Synchronize counters for CPU 2: done.
[    0.379298] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[    0.379305] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32 bytes
[    0.379311] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[    0.379399] CPU3 revision is: 0001992f (MIPS 1004Kc)
[    0.488130] Synchronize counters for CPU 3: done.
[    0.497559] Brought up 4 CPUs
[    0.506866] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_                                                                                      idle_ns: 19112604462750000 ns
[    0.526368] futex hash table entries: 1024 (order: 3, 32768 bytes)
[    0.539065] pinctrl core: initialized pinctrl subsystem
[    0.549987] NET: Registered protocol family 16
[    0.589628] pull PCIe RST: RALINK_RSTCTRL = 0
[    0.898336] release PCIe RST: RALINK_RSTCTRL = 7000000
[    0.908398] ***** Xtal 40MHz *****
[    0.915129] release PCIe RST: RALINK_RSTCTRL = 7000000
[    0.925334] Port 0 N_FTS = 1b105000
[    0.932234] Port 1 N_FTS = 1b105000
[    0.939158] Port 2 N_FTS = 1b102800
[    2.096737] PCIE2 no card, disable it(RST&CLK)
[    2.105419]  -> 21007f2
[    2.110244] PCIE0 enabled
[    2.115439] PCIE1 enabled
[    2.120617] PCI host bridge /pcie@1e140000 ranges:
[    2.130143]  MEM 0x0000000060000000..0x000000006fffffff
[    2.140503]   IO 0x000000001e160000..0x000000001e16ffff
[    2.150873] PCI coherence region base: 0x60000000, mask/settings: 0xf0000002
[    2.196414] mt7621_gpio 1e000600.gpio: registering 32 gpios
[    2.207557] mt7621_gpio 1e000600.gpio: registering 32 gpios
[    2.218624] mt7621_gpio 1e000600.gpio: registering 32 gpios
[    2.230950] PCI host bridge to bus 0000:00
[    2.238956] pci_bus 0000:00: root bus resource [mem 0x60000000-0x6fffffff]
[    2.252621] pci_bus 0000:00: root bus resource [io  0xffffffff]
[    2.264364] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
[    2.277839] pci_bus 0000:00: No busn resource found for root bus, will use [bus                                                                                       00-ff]
[    2.295420] pci 0000:00:00.0: BAR 0: no space for [mem size 0x80000000]
[    2.308438] pci 0000:00:00.0: BAR 0: failed to assign [mem size 0x80000000]
[    2.322263] pci 0000:00:01.0: BAR 0: no space for [mem size 0x80000000]
[    2.335385] pci 0000:00:01.0: BAR 0: failed to assign [mem size 0x80000000]
[    2.349214] pci 0000:00:00.0: BAR 8: assigned [mem 0x60000000-0x600fffff]
[    2.362693] pci 0000:00:00.0: BAR 9: assigned [mem 0x60100000-0x601fffff pref]
[    2.377034] pci 0000:00:01.0: BAR 8: assigned [mem 0x60200000-0x602fffff]
[    2.390513] pci 0000:00:01.0: BAR 9: assigned [mem 0x60300000-0x603fffff pref]
[    2.404855] pci 0000:00:00.0: BAR 1: assigned [mem 0x60400000-0x6040ffff]
[    2.418338] pci 0000:00:01.0: BAR 1: assigned [mem 0x60410000-0x6041ffff]
[    2.431820] pci 0000:01:00.0: BAR 0: assigned [mem 0x60000000-0x600fffff 64bit]
[    2.446337] pci 0000:01:00.0: BAR 6: assigned [mem 0x60100000-0x6010ffff pref]
[    2.460671] pci 0000:00:00.0: PCI bridge to [bus 01]
[    2.470507] pci 0000:00:00.0:   bridge window [mem 0x60000000-0x600fffff]
[    2.483996] pci 0000:00:00.0:   bridge window [mem 0x60100000-0x601fffff pref]
[    2.498344] pci 0000:02:00.0: BAR 0: assigned [mem 0x60200000-0x602fffff 64bit]
[    2.512865] pci 0000:02:00.0: BAR 6: assigned [mem 0x60300000-0x6030ffff pref]
[    2.527193] pci 0000:00:01.0: PCI bridge to [bus 02]
[    2.537033] pci 0000:00:01.0:   bridge window [mem 0x60200000-0x602fffff]
[    2.550523] pci 0000:00:01.0:   bridge window [mem 0x60300000-0x603fffff pref]
[    2.564875] BAR0 at slot 0 = 0
[    2.570893] bus=0x0, slot = 0x0
[    2.577133] BAR0 at slot 1 = 0
[    2.583162] bus=0x0, slot = 0x1
[    2.589410] bus=0x1, slot = 0x0, irq=0xff
[    2.597342] bus=0x2, slot = 0x1, irq=0xff
[    2.606509] clocksource: Switched to clocksource GIC
[    2.630748] NET: Registered protocol family 2
[    2.640055] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    2.653793] TCP bind hash table entries: 1024 (order: 1, 8192 bytes)
[    2.666388] TCP: Hash tables configured (established 1024 bind 1024)
[    2.679079] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    2.690603] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    2.703292] NET: Registered protocol family 1
[    2.946454] 4 CPUs re-calibrate udelay(lpj = 2924544)
[    2.958235] Crashlog allocated RAM at address 0x3f00000
[    2.977839] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    2.989389] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY)                                                                                       (c) 2001-2006 Red Hat, Inc.
[    3.011597] io scheduler noop registered
[    3.019322] io scheduler deadline registered (default)
[    3.030010] Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
[    3.043778] console [ttyS0] disabled
[    3.050809] 1e000c00.uartlite: ttyS0 at MMIO 0x1e000c00 (irq = 33, base_baud =                                                                                       3125000) is a 16550A
[    3.068765] console [ttyS0] enabled
[    3.068765] console [ttyS0] enabled
[    3.082548] bootconsole [early0] disabled
[    3.082548] bootconsole [early0] disabled
[    3.099839] MediaTek Nand driver init, version v2.1 Fix AHB virt2phys error
[    3.114107] spi-mt7621 1e000b00.spi: sys_freq: 50000000
[    3.125481] m25p80 spi32766.0: using chunked io (size=32)
[    3.136257] m25p80 spi32766.0: w25q128 (16384 Kbytes)
[    3.146351] 5 ofpart partitions found on MTD device spi32766.0
[    3.157959] Creating 5 MTD partitions on "spi32766.0":
[    3.168189] 0x000000000000-0x000000030000 : "u-boot"
[    3.179357] 0x000000030000-0x000000040000 : "u-boot-env"
[    3.191166] 0x000000040000-0x000000050000 : "factory"
[    3.202452] 0x000000050000-0x000000e30000 : "firmware"
[    3.236067] 2 uimage-fw partitions found on MTD device firmware
[    3.247881] 0x000000050000-0x0000001e6b25 : "kernel"
[    3.258886] 0x0000001e6b25-0x000000e30000 : "rootfs"
[    3.269852] mtd: device 5 (rootfs) set to be root filesystem
[    3.281228] 1 squashfs-split partitions found on MTD device rootfs
[    3.293544] 0x000000d10000-0x000000e30000 : "rootfs_data"
[    3.305469] 0x000000e30000-0x000001000000 : "recovery"
[    3.317588] netif_napi_add() called with weight 128 on device eth%d
[    3.398533] libphy: mdio: probed
[    4.804390] mtk_soc_eth 1e100000.ethernet: loaded mt7530 driver
[    4.817056] mtk_soc_eth 1e100000.ethernet eth0: mediatek frame engine at 0xbe10                                                                                      0000, irq 10
[    4.834753] mt7621_wdt 1e000100.wdt: Initialized
[    4.845800] NET: Registered protocol family 10
[    4.855989] NET: Registered protocol family 17
[    4.864957] bridge: automatic filtering via arp/ip/ip6tables has been deprecate                                                                                      d. Update your scripts to load br_netfilter if you need this.
[    4.890066] 8021q: 802.1Q VLAN Support v1.8
[    4.900977] hctosys: unable to open rtc device (rtc0)
[    4.917716] VFS: Mounted root (squashfs filesystem) readonly on device 31:5.
[    4.932470] Freeing unused kernel memory: 260K (8050f000 - 80550000)
[    5.128168] random: nonblocking pool is initialized
[    6.560231] mtk_soc_eth 1e100000.ethernet eth0: port 2 link up
[    6.975692] init: Console is alive
[    6.982813] init: - watchdog -
[    8.649577] kmodloader: loading kernel modules from /etc/modules-boot.d/*
[    8.727382] usbcore: registered new interface driver usbfs
[    8.738441] usbcore: registered new interface driver hub
[    8.749191] usbcore: registered new device driver usb
[    8.769504] xhci-mtk 1e1c0000.xhci: xHCI Host Controller
[    8.780173] xhci-mtk 1e1c0000.xhci: new USB bus registered, assigned bus number                                                                                       1
[    8.806713] xhci-mtk 1e1c0000.xhci: hcc params 0x01401198 hci version 0x96 quir                                                                                      ks 0x00210010
[    8.823593] xhci-mtk 1e1c0000.xhci: irq 29, io mem 0x1e1c0000
[    8.836058] hub 1-0:1.0: USB hub found
[    8.843626] hub 1-0:1.0: 2 ports detected
[    8.852049] xhci-mtk 1e1c0000.xhci: xHCI Host Controller
[    8.862640] xhci-mtk 1e1c0000.xhci: new USB bus registered, assigned bus number                                                                                       2
[    8.877695] usb usb2: We don't know the algorithms for LPM for this host, disab                                                                                      ling LPM.
[    8.894671] hub 2-0:1.0: USB hub found
[    8.902235] hub 2-0:1.0: 1 port detected
[    8.912320] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
[    8.946835] init: - preinit -
Press the [f] key and hit [enter] to enter failsafe mode
Press the [1], [2], [3] or [4] key and hit [enter] to select the debug level
[   12.769279] mount_root: loading kmods from internal overlay
[   12.807970] kmodloader: loading kernel modules from //etc/modules-boot.d/*
[   12.824662] kmodloader: done loading kernel modules from //etc/modules-boot.d/*
[   13.246922] jffs2: notice: (405) jffs2_build_xattr_subsystem: complete building                                                                                       xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orp                                                                                      han) found.
[   13.278249] block: attempting to load /tmp/jffs_cfg/upper/etc/config/fstab
[   13.292134] block: unable to load configuration (fstab: Entry not found)
[   13.305559] block: attempting to load /tmp/jffs_cfg/etc/config/fstab
[   13.318326] block: unable to load configuration (fstab: Entry not found)
[   13.331746] block: attempting to load /etc/config/fstab
[   13.343653] block: unable to load configuration (fstab: Entry not found)
[   13.357108] block: no usable configuration
[   13.483441] jffs2: notice: (402) jffs2_build_xattr_subsystem: complete building                                                                                       xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orp                                                                                      han) found.
[   13.731900] block: attempting to load /tmp/jffs_cfg/upper/etc/config/fstab
[   13.745769] block: unable to load configuration (fstab: Entry not found)
[   13.759205] block: attempting to load /tmp/jffs_cfg/etc/config/fstab
[   13.771974] block: unable to load configuration (fstab: Entry not found)
[   13.785395] block: attempting to load /etc/config/fstab
[   13.795918] block: unable to load configuration (fstab: Entry not found)
[   13.809336] block: no usable configuration
[   13.848198] mount_root: overlay filesystem has not been fully initialized yet
[   13.863094] mount_root: switching to jffs2 overlay
[   13.882215] urandom-seed: Seed file not found (/etc/urandom.seed)
[   13.984320] procd: - early -
[   13.990244] procd: - watchdog -
Failed to connect to ubus
[   14.646820] procd: - watchdog -
[   14.653521] procd: - ubus -
[   15.073120] procd: - init -
Please press Enter to activate this console.
[   15.390097] kmodloader: loading kernel modules from /etc/modules.d/*
[   15.404409] Loading modules backported from Linux version wt-2017-01-31-0-ge882                                                                                      dff19e7f
[   15.420388] Backport generated by backports.git backports-20160324-13-g24da7d3c
[   15.515668] mt76x2e 0000:01:00.0: ASIC revision: 76120044
[   15.546527] mt76x2e 0000:01:00.0: ROM patch already applied
[   15.599530] mt76x2e 0000:01:00.0: Firmware Version: 0.0.00
[   15.610533] mt76x2e 0000:01:00.0: Build: 1
[   15.618693] mt76x2e 0000:01:00.0: Build Time: 201507311614____
[   15.646515] mt76x2e 0000:01:00.0: Firmware running!
[   15.661909] mt76x2e 0000:02:00.0: ASIC revision: 76020044
[   15.696602] mt76x2e 0000:02:00.0: ROM patch already applied
[   15.708714] mt76x2e 0000:02:00.0: Firmware Version: 0.0.00
[   15.719673] mt76x2e 0000:02:00.0: Build: 1
[   15.727845] mt76x2e 0000:02:00.0: Build Time: 201507311614____
[   15.756569] mt76x2e 0000:02:00.0: Firmware running!
[   15.771734] kmodloader: done loading kernel modules from /etc/modules.d/*
[   82.562828] mtk_soc_eth 1e100000.ethernet eth0: port 2 link down
`

solved it with a faster ttl to usb converter.

What model of USB to Serial converter do you used? PLZ.

also interested in the USB to Serial converter :slight_smile: confirming the Vcc pin is unused in this configuration?

Vcc shouldn't be connected.