Flashing espruino on ESP-01

Hi,

I just got an esp-01 from ebay which looks similar to

http://www.kingcomchina.com/T82.html

It's a 1MB version, and it responds to AT commands

Does anyone know the command for flashing using esptool?

AT+RST


OK

 ets Jan  8 2013,rst cause:1, boot mode:(3,7)

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       : DOUT
  SPI Flash Size & Map: 8Mbit(512KB+512KB)
jump to run user1 @ 1000

Œâ.ì.‚nì’r‚òn|ì.ŒlŽprlŒâr’lŒl.Œ...l`.Œâr’lìl.Œ...l`.Œâr’l.Žž.Œ..ll`.rlŽ‚rlŒžâŒb.ŒŒbŒb.bŽrœlœœp..bìònî€.nnâ....Œlòp.ll.Œ.lŒŽlìŽ.’.Œ.Žl`.€.nü.ŒžâŒb.l.lŽrp....ŒžâŒb.l.Œb.rlrl
ready

AT+GMR

AT version:1.3.0.0(Jul 14 2016 18:54:01)
SDK version:2.0.0(656edbf)
compile time:Jul 19 2016 18:44:44
OK