The giant mutant snake was close to breaking down the door and Echo was running out of time to figure out the puzzle. Trying as many combinations as possible that seemed to make sense, Echo panicked until he realised it didn't matter if he used essence anymore.
Pulling out his gun he aimed it at the half-broken door and saw that there was a gap big enough for him to shoot through. Firing he hoped it would be enough to give him some more time to open up the door.
*HIIIISSSS*
Hearing the snake pull back Echo figured he might have hit it in the eye allowing him to use his table to figure out the code. Holding the tablet with one hand Echo still had his gun ready just in case.
The tablet did its job and soon the combination came up for him and to his surprise, he already had the answer.