Got d1-mini clones and not able to flash them

Combined 4MB firmware, @ 80MHz (no change for 40MHz).

$ esptool.py --port /dev/tty.wchusbserialfd12240 --baud 115200 erase_flash
esptool.py v2.3.1
Connecting....
Detecting chip type... ESP8266
Chip is ESP8266EX
Features: WiFi
Uploading stub...
Running stub...
Stub running...
Erasing flash (this may take a while)...
Chip erase completed successfully in 9.1s
Hard resetting via RTS pin...

$ esptool.py --port /dev/tty.wchusbserialfd12240 --baud 115200 write_flash \
		--flash_freq 80m --flash_mode dio --flash_size 4MB-c1 \
		0x0000 espruino_2v04_esp8266_4mb_combined_4096.­bin
esptool.py v2.3.1
Connecting....
Detecting chip type... ESP8266
Chip is ESP8266EX
Features: WiFi
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Flash params set to 0x026f
Compressed 4194304 bytes to 351432...
Wrote 4194304 bytes (351432 compressed) at 0x00000000 in 31.5 seconds (effective 1064.8 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...

$ espruino "-b" "75600" "--no-ble"

Espruino Command-line Tool 0.1.31
-----------------------------------

Using first port, {"path":"/dev/tty.wchusbserialfd12240","­usb":[1,7523]}
Connecting to '/dev/tty.wchusbserialfd12240'
;d$Ü|Ä$à|
          
           dìc|ì#
 ets 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      : 80MHz
  SPI Mode       : DIO
  SPI Flash Size & Map: 32Mbit(1024KB+1024KB)
jump to run user1 @ 1000

No result found for "process.env" - just got "ÿÿ"
Unable to retrieve board information.