Finally got the resolution of this issue ,
either put left earbud out of case or right bud out of case
let’s suppose you put left bud out of case and right one is in the case (you should have to try by putting one by one in the case but only one earpods in case at a time )
the. Press and hold until once amber light once blink then it’s reset with right bud then check , either while putting left or right bud in the case you will get connect with iphone/mac
then try to update the firmware properly by calling the apple support team do not be oversmart after getting one airpod connect call apple bro
i assure you that it will work and if you fix by this method kindly reply back here , i have another method if this not work but 99% of the time it will work
one more thing in the community no specialist will provide this solution all are dumb and provide non-sense and cheap tips to sort this , i travell 200+ kms multiple time to fix the same issue bro 😂😂