Just finished assembling RINGO together with my son, a lot of fun, thank you!
After first boot - it went properly, except the “on” button did not trigger from under the screen but worked from the bottom right corner. So after that all looked good and the main menu was on the screen, but when we tried to run first application - the Snake game, RINGO rebooted and never booted again - only shows first “Loading…” screen since then 
Serial monitor on reboot:
OK
next alarm: 99
module inserted
SIM NOT INSERTED
Serial1 up and running…
[E][vfs_api.cpp:22] open(): File system is not mounted
[E][vfs_api.cpp:72] exists(): File system is not mounted
[E][vfs_api.cpp:154] mkdir(): File system is not mounted
[E][vfs_api.cpp:22] open(): File system is not mounted
[E][sd_diskio.cpp:739] sdcard_mount(): f_mount failed 0x(3)
[E][sd_diskio.cpp:739] sdcard_mount(): f_mount failed 0x(3)
When Re-uploading the ‘Default Ringo software’:
Traceback (most recent call last):
File “esptool.py”, line 57, in
File “/Library/Python/2.7/site-packages/PyInstaller/loader/pyimod03_importers.py”, line 389, in load_module
File “serial/tools/list_ports.py”, line 29, in
File “/Library/Python/2.7/site-packages/PyInstaller/loader/pyimod03_importers.py”, line 389, in load_module
File “serial/tools/list_ports_posix.py”, line 31, in
File “/Library/Python/2.7/site-packages/PyInstaller/loader/pyimod03_importers.py”, line 389, in load_module
File “serial/tools/list_ports_osx.py”, line 32, in
ValueError: dlsym(RTLD_DEFAULT, kIOMasterPortDefault): symbol not found
Failed to execute script esptool
Maybe this is related to the soldering on the first pin wi began with and obviously screwed. Just wondering if we ditched the whole board or worth it another try?..
