Sending 3020: receiveData timeout after 400ms - not possible to upload sketch

its says sending 3020:recieve data timeout 400ms. PLease help

Same here
HP Chromebook G6 EE
Sending 3020: receiveData timeout after 400ms

background page console:
Programming with: avrgirl-arduino flash -f undefined -a nano -p /dev/ttyUSB0
background.bundle.js:258 connected
background.bundle.js:258 reset complete.
background.bundle.js:258 flashing, please wait...
background.bundle.js:258 flash complete.
background.bundle.js:268 Error: Sending 3020: receiveData timeout after 400ms
at background.bundle.js:24612
at finished (background.bundle.js:24563)
at background.bundle.js:24568
_generated_background_page.html:1 Unchecked runtime.lastError: Serial connection not found.

Problems are only with Nano. Uno works fine.

Seems like it fu*ked up my Arduino Nano
On desktop can't be programed too
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00