I have 3 esp8266 boards, 2 of them run CP210 drivers and one of them runs CP340. everytime I try to flash one of them with micropython, the board keeps flashing blue led rapidly and gets stuck on bootloader with the following repeating messages:
<code>load 0x40100000, len 31212, room 16
tail 12
chksum 0xa6
ho 0 tail 12 room 4
load 0x3ffe8000, len 1060, room 12
tail 8
chksum 0x80
load 0x3ffe8430, len 1124, room 0
tail 4
chksum 0xcb
csum 0xcb
rf_cal[0] !=0x05,is 0x31
</code>
<code>load 0x40100000, len 31212, room 16
tail 12
chksum 0xa6
ho 0 tail 12 room 4
load 0x3ffe8000, len 1060, room 12
tail 8
chksum 0x80
load 0x3ffe8430, len 1124, room 0
tail 4
chksum 0xcb
csum 0xcb
rf_cal[0] !=0x05,is 0x31
</code>
load 0x40100000, len 31212, room 16
tail 12
chksum 0xa6
ho 0 tail 12 room 4
load 0x3ffe8000, len 1060, room 12
tail 8
chksum 0x80
load 0x3ffe8430, len 1124, room 0
tail 4
chksum 0xcb
csum 0xcb
rf_cal[0] !=0x05,is 0x31
All 3 boards have the same issue and are not detected by pymakr on VS code studio.
I expected the micropython firmware to flash onto the board since all the other youtube tutorials do the same steps with no issues.
Edit:
These are the settings that NodeMCU flashes with. Perhaps one of them is the issue? I also tried using esptool and thonny, they all output the same issue.
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