IMO
As described above, the power supply for these TV sticks is marginal.
There seem to be many questions, including my own, of which discount offering will provide suitable power, reliably, especially when increasing performance, and demand on the unit.
Additionally, as described above, what seems to be lacking is integrity, in the performance claims of AC/DC power supplies available in the customary online markets... at an affordable price.
Among my questions are, What is the capability of the onboard voltage regulation circuit?
...an increase in voltage applied to the unit must be controlled by the internal circuitry and will be dissipated as heat. SO, it is best to apply voltage as close to 5v as possible.
...an increase in ampacity is beneficial because power is only consumed as required by the device. Increased ampacity will decreased surges and spikes. The downside will be the physical size of the power supply.
What WE need here is a competent techinician with suitable equipment to test a number of commonly available power supplies which are inexpensive from common sources, in at least most all countries.
He should be able to test the supplies under variable load, AND, be capable of viewing possible interference generated by simultaneously using a spectrum analyzer to determine if RF generated may interfere with the device.
An increase in distance, or shielding applied to the supply will generally improve RF interference problems.
I do not have such a tech at my convenience... do you?
:-)
rc
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