Joplin boot option utility

1. press top button + L (don't exactly remember)
device will give menu for choosing logging direction options;

2. press top button + w (don't exactly remember)
device will turn modem to DLOAD mode

Flashing Joplin

Host flashing:

1. Use OST flash bootloader;
switch Ringer to right; press top button; connect serial cable with desktop; run OST; power device;

2. Use Platform Builder flash token;
run Platform Builder; press top button; power up device; device turn into usb pass-through mode; connect usb cable; select token, attach menu;

3. Use platform flash image;
run Platform Builder; press top button; power up device; connect usb cable; select flash.bin, attach menu; device turn into usb pass-through mode;
Modem Flash
1. switch ringer to left, press top button, power up device, device turn to serial pass-through mode;
2. run QPST, connect serial cable to desktop;
3. then use QPST flash the device;