Got d1-mini clones and not able to flash them

This separate files doesn't seem to work properly in my case. Both with previous flash erasure. What could be the reasons for that?

esptool.py --port /dev/tty.wchusbserialfd12240  write_flash -fs 4MB-c1 -fm dio 0x0000 boot_v1.6.bin 0x1000 espruino_esp8266_user1.bin 0x3FC000 esp_init_data_default.bin 0x3FE000 blank.bin

Both of the flash command lines result in (when connecting on 74880-8-N-1)

Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x40100000, len 2408, room 16 
tail 8
chksum 0xe5
load 0x3ffe8000, len 776, room 0 
tail 8
chksum 0x84
load 0x3ffe8310, len 632, room 0 
tail 8
chksum 0xd8
csum 0xd8

2nd boot version : 1.6
  SPI Speed      : 40MHz
  SPI Mode       : DIO
  SPI Flash Size & Map: 32Mbit(1024KB+1024KB)
jump to run user1 @ 1000

rf cal sector: 1019
freq trace enable 0