Extra tips, which are not in guide but maybe just assumed you would know.
- I am using a brand new sd card,
- After every update I format the card, not delete the contents.
- Always eject the card in windows, dont just pull it out after file transfer.
- Getting into engineering mode was hit a miss for me. Dont know how many times I had to push the buttons and hold to get into it.
- My battery charge is one that charges and maintains.