power on issues with mac air

hello, i have a macbook air 11” 2013 that the battery went dead. i placed the charger on the device and it would not charge. about a year ago i replaced the charging board on this laptop and had success with it after that for awhile. i dont recall letting the battery fully drain though. i recently went to turn on the laptop after it had sat for a long time. i only get a flashing green light on the charger every 12 seconds or so. i reset the pram and smc, disconnected the battery cable from the board and still will not take a charge. if i hold down the power button with the battery cable connected it will turn on with the fan at full speed. if i leave the charger connected and restart, shutdown or boot into safe mode it only takes a press of the button to turn on but fan still running at full speed. if i disconnect the charger at any point the laptop will not turn on until i hold in the power button. oh when i hold in the power button at first the light is off then will go solid green and after about 6-7 seconds it will turn on. is this a bad battery or another faulty charging board? when i login there is no battery percentage showing on the screen so i guess it could be the logic board. i also have turned on the laptop with the battery disconnected with the same results. thank you in advance for any help

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i have tried so many different key combos now, i'm dizzy. any help would be amazing

par

watched a ton of videos just now tried each one of them. nothing worked. most are saying its a I/O board issue. maybe mine is bad again. prob not but worth a shot i guess at $25. any input would be so helpful and appreciated

par

anyone have a suggestion?

par

anyone have any suggestions. i dont want to put too much time and money into the device if it is a main logic board issue

par

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