RetroPie breaks in different ways everytime I shut down

[riel.fox]

@BuZz
The eBay listing was for:
2016 SanDisk 128GB microSDXC 80MB/s Ultra 128G microSD micro SDXC SD

and the price was £14.99 from uk eBay

I thought it was a great deal. Now it especially seems dodgy to me since the seller has disappeared from eBay.

I am ready to start a case at the Resolution Center for my money back, but is there a way to produce hard evidence with some tool that I got scammed?

I will certainly try the PSU too, although I tried it with two different PSU's (the official PSU will arrive shortly by mail)

[BuZz]

I doubt that is a real 128GB micro sdcard - way too cheap, that sdcard is around £35-£45 - do not buy sdcards from ebay (unless they are a reputable shop with an ebay store) - if the seller has disappeared I think you have your answer. Time to get a new sdcard.

I am still interested in the specs of the PSUs you tried.

[riel.fox]

@BuZz

These are the PSU's I have used, both from smartphones.

[IMG]http://i63.tinypic.com/qnnzg0.jpg[/IMG]

The first is the charger for a OnePlus One.

[IMG]http://i63.tinypic.com/2i91g15.jpg[/IMG]

It says
Input: 100-240V~50-60Hz 450mA
Output: 5V -- 2100mA

The other is from Apple, it says:
Input: 100-240V ~50/60Hz 0.15A
Output: 5V -- 1A

I am not very experienced with hardware but I guess it's not right?

The PSU I ordered and waiting for I got exclusively for the Pi3 and is 5V 2.5A.
Should I just wait for it and retry or - meanwhile- request a refund for the SD card?

[BuZz]

The first one may be enough depending what you are plugging in to the rpi. The second is not.

I'm pretty sure your sdscard is fake - could test it with something like https://sosfakeflash.wordpress.com/2008/09/02/h2testw-14-gold-standard-in-detecting-usb-counterfeit-drives/

[A Former User]

@riel.fox

You definitely need a 2.5a power adapter supply for the Pi 3. Without it you run the risk of the Pi being unstable due to insufficient power. When you start using multiple ports, internal Wi-Fi, and Bluetooth, the system starts drawing more power.

I would put in a request to dispute the Micro SD card with PayPal or whomever you used to pay with. It is almost guaranteed to be a fake. Get a 64gb-128gb card from Amazon or from someplace local to use for awhile.

[riel.fox]

@BuZz
Thanks
I'm running the test as we speak.
It will take a while...

Meanwhile, I have opened a case on eBay

[RetroResolution]

@BuZz no problem BuZz, I missed the notification again anyway -'titally agree with you, without a decent 2.5a supply no testing will be valid

[RetroResolution]

@BuZz I'd also add that you should be cautious of Amazon resellers / third-parties when it comes to sdcards - when I buy mine I ensure they are being sold directly by Amazon itself.

I recently bought a 64gb class 10 Samsung card for about £12, which arrived in factory-sealed packaging (always a good sign).

First thing I do with new sdcards is a full erase (not a fast / MBR only erase), then write a known-good image taken from an identical card (granted, that isn't always an option) - just to ensure the actual capacity of the card is genuine (plenty of other ways to do this from a bash shell under Raspbian or other Linux distro)

[riel.fox]

@BuZz
Yep, there's our culprit... The SD card was a scam.
Now I have hard evidence.

Test concluded with:

Warning: Only 127958 of 127968 MByte tested.
The media is likely to be defective.
8.0 GByte OK (16799287 sectors)
116.9 GByte DATA LOST (245258697 sectors)
Details:0 KByte overwritten (0 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
116.9 GByte corrupted (245258697 sectors)
0 KByte aliased memory (0 sectors)
First error at offset: 0x0000000200ac6e00
Expected: 0x0000000200ac6e00
Found: 0xaaf3171d41908688
H2testw version 1.3
Writing speed: 8.77 MByte/s
Reading speed: 5.22 MByte/s
H2testw v1.4

Now all I have to do is wait for the return period to end so that eBay may review my case and, hopefully, give me a refund.
I've attached the results of the tests to them.

Thanks for the help guys. I am experimenting with an 8 GB microSD I has lying around (that I know is legit) and it seems to perform well, no corruptions.

[BuZz]

@RetroResolution yeh. Always best to get direct from known good companies