However, the question you really need to ask is do you really need to upgrade? Does your device work as you need and want it to work? If so, does it really need to be fixed, since it isn't broken?
My advice to all, and probably contrary to many, is that if the device does what you want it to do like you want it to do, then there is no need in risking trying to change/upgrade. You just might do more harm than good.
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