Roughly 8 years on the MMC chip becoming loose issue got my Note 4, well kind of - I opened it up and stuck some cardboard in there to maintain pressure on the contacts so it works again but it is definitely on its last legs even with that it is having read/write issues. Not my only phone but the best phone by far ever and the one I always turn to if it comes down to choosing despite being so old - I have no idea why they never made a worthy successor.