Code #1

Observations

Same old cipher, you can almost see the keyword right in the middle

Make a 2×11 grid

Read going left from the upper right B

bexthfibrainwavetweitwud

bex35brainwave282ud

For a quicker solve you could just reverse each pair of letters in the code.

All letters but there is definite range

The range of the letters goes from A to J or 0 to 9. Convert letters to numbers using a=0

7876451515488756782505873828

Make pairs

78 76 45 15 15 48 87 56 78 25 05 87 38 28

Reverse

82 83 78 50 52 87 65 78 84 51 51 54 67 87

Convert decimal to Ascii

RSN24WANT336CW

A very well known cipher but they got creative with the numbers

Make a 4×4 grid

Read going down from the upper right T

toaddcreatecjefm

Convert letters to numbers using a=0 where the numbers should be in the passcode format

toa33create294fm