Always use SD Cards for everything, writing to the NAND should be limited to very specific cases where you can't use the SD Card. The size of the NAND is limited, and you don't want to wear it down.
I have never heard of anyone actually 'wearing down' their internal eMMC on a Pandora by installing and booting their OS from it. Sure, NAND can 'wear down' eventually, but we're talking about tens of thousands of write cycles. Has anyone actually ever 'worn out' the NAND on a Pandora while using it for OS? I'm just questioning if this is myth or fiction.
- The Headphone Jack of the Pandora is not the "New Standart", this means if you use a newer Headphone you will have some Sound Issues,
some yeahrs ago (but after the Pandora headphone Jack was used) Apple made a new Standart, so the old Headphones ditnt work that good..
There WAS a standard. If you look at -any- other plug or cable standard, it is handled this way - with the ground being the outermost connector. On high quality connectors of this time period, the entire outer casing of the plug would be metal and linked into this sleeve ground. Any electrical charge on the operator (person) would then be dumped to ground when using the plug. Fantastic. Makes sense. Follows the configuration standard started in phone companies clear back in the early 1900s. The sleeve is always the ground. It makes great sense. The Pandora followed this standard - as did EVERY stereo microphone headset made - including Apple units of the time.
T= Tip = left audio
R = Ring = right audio
R = Ring = mic
S = Sleeve = ground
Then, 2010-2012 or so, Apple decided to take a pre-existing wiring standard that was in use for all 4 wire TRRS plugs and change it. The Apple proprietary standard included re-wiring the 4 connector TRRS and patenting sending ohm-resistance signals over the wires. This ensured that no non-Apple headsets would work on Apple devices AND that Apple headsets would no longer work on other devices.
T = Tip = left audio
R = Ring = right audio
R = Ring = ground
S = Sleeve = mic
*Suddenly people with Apple devices were returning 3rd party headsets. So, headset manufacturers flipped 2 wires so the Apple crowd would buy them - they could then charge more. Beats and many other manufacturers of high priced headsets were born.
*Suddenly people with non-Apple devices were returning 3rd party headsets - they were all wired the Apple way. So, cell phone manufacturers (Samsung included) flipped the 2 connectors to conform to the Apple ground/mic connection methodology - and then added their own ohm-resistance signal interpretations.
Fast forward to today. The above history isn't glamorous for Apple or Samsung or the headphone manufacturers or consumers. So now we have revisionist historians claiming that the Apple 2012 way was the original configuration.
https://www.cablechick.com.au/blog/understanding-trrs-and-audio-jacks/
There are several websites making a similar claim. Even Wikipedia now states the 'first' TRRS standard as being Apple's - even though they acknowledge that Nokia was doing it back in 2006.
https://en.wikipedia.org/wiki/Phone_connector_(audio)
3.5 mm TRRS (stereo-plus-mic) sockets became particularly common on
smartphones, and have been used e.g. by Nokia since 2006; they are often compatible with standard 3.5 mm stereo headphones. Two different forms are frequently found, both of which place left audio on the tip and right audio on the first ring (mirroring the configuration found on stereo connectors). Where they differ is in the placement of the microphone and return contacts. The first, which places the ground return on the second ring and the microphone on the sleeve, is used by
Apple's
iPhone line (through the iPhone 6),
HTC devices, recent
Samsung,
Nokia, and
Sony phones, among others. The second, which reverses these contacts, is used by older Nokia mobiles, older
Samsung smartphones, and some
Sony Ericsson phones.
[41] Some adapters switch the last two conductors to allow a device made to one standard to be used with a headset made to the other.
[42]
In reality, there WAS already a 'first' standard, (left/right/mic/ground) and the second 'standard' was created by Apple.
All of this is supposed to be solved by the Pyra though. It has a circuit that detects which pin the ground is on then switches the jack configuration to match the headset plugged into it.
So, back when the Pandora was designed, it followed the primary standard for headset stereo audio jacks with the ground where it always should have been - on the outer sleeve, just like in every other wiring system on planet earth did at the time.