Erik, here the debug for the quick fail (only a few rapid flashes 5-6) Followed by a long cycle fail (rapid flash for a long time but fails).
Quick fail:
ets Jan 8 2013,rst cause:2, boot mode:(3,0)
load 0x40100000, len 3632, room 16
tail 0
chksum 0xc0
load 0x3ffe8000, len 352, room 8
tail 8
chksum 0x82
csum 0x82
OakBoot v1 - N,BP,2
START UPDATE ROM
WIFI
WIFI CONNECT
GO TO UPDATE
START UPDATE
HOST LOOKUP OK
NO CLIENT
COULD NOT CONNECT TO DIGISTUMP UPDATE SERVER
UPDATE FAILED
ets Jan 8 2013,rst cause:2, boot mode:(3,0)
load 0x40100000, len 3632, room 16
tail 0
chksum 0xc0
load 0x3ffe8000, len 352, room 8
tail 8
chksum 0x82
csum 0x82
OakBoot v1 - N,BU,0
Long cycle failure:
ets Jan 8 2013,rst cause:2, boot mode:(3,0)
load 0x40100000, len 3632, room 16
tail 0
chksum 0xc0
load 0x3ffe8000, len 352, room 8
tail 8
chksum 0x82
csum 0x82
OakBoot v1 - N,BP,2
START UPDATE ROM
WIFI
WIFI CONNECT
GO TO UPDATE
START UPDATE
HOST LOOKUP OK
PARSING HTTP HEADER
HTTP/1.1 200 OK
FILE LENGTH: 778096
START WRITING UPDATE - NO OUTPUT SHOULD BE EXPECTED FOR UP TO 120 SECONDS
./+./+./+./+./+./+./+./+./+./+./+./+./+./+./+./+./+./+./+.SOCKET READ TIMEOUT
UPDATE FAILED
ets Jan 8 2013,rst cause:2, boot mode:(3,0)
load 0x40100000, len 3632, room 16
tail 0
chksum 0xc0
load 0x3ffe8000, len 352, room 8
tail 8
chksum 0x82
csum 0x82
OakBoot v1 - N,BU,0