t-echo: enable nrfupload

platformio.ini

@@ -211,7 +211,7 @@ lib_ignore =
 monitor_port = /dev/ttyACM1
 
 # we pass in options to jlink so it can understand freertos (note: we don't use "jlink" as the tool)
-debug_tool = jlink
+;debug_tool = jlink
 debug_port = :2331
 # Note: the ARGUMENTS MUST BE on multiple lines.  Otherwise platformio/commands/debug/helpers.py misparses everything into the "executable"
 # attribute and leaves "arguments" empty
@@ -352,6 +352,7 @@ lib_deps =
   ${nrf52840_base.lib_deps}
   https://github.com/geeksville/EPD_Libraries.git
   TFT_eSPI
+;upload_protocol = fs
 
 ; First prototype eink/nrf52840/sx1262 device (removed from build because didn't ship in quantity)
 ;[env:eink0.1]