Rockbox erasing itself after reboot. (iPod 7G Classic)

[jayglo]

I used rockbox my iPod Classic 7g with a kingston 128gb micro sd on iFlash solo, and decided to upgrade to a Sony 256gb micro sd to have more space. (this one: https://i.ebayimg.com/images/g/kEwAAOSwqP9nl3T-/s-l1600.jpg)

So I've disconnected the battery, removed the old sd and insert the new one, restored with itunes and then tried to install rockbox.

Installation goes flawlessly and the .rockbox folder is showing on explorer, with all the installation files inside. But when I reboot I get the classic "can't find rockbox.ipod" error.

Weird, so I check again on explorer.

The .rockbox folder is still there but inside there is only:

• docs folder
• database.ignore
• tagnavi.config

What is happening?

[Bilgus]

sounds like some kind of corruption

is this windows or linux you are using and are you sure its a real card?

Try a different card and or run a capacity test on the card before we go further

this is windows but similar tools exist for linux as well
https://rmprepusb.com/tutorials/007-all-about-fake-sd-cards-and-usb-flash-drives/

Buying from eBay, Amazon, etc.

WARNING to all eBay and Amazon buyers – Always check the seller’s feedback – if anyone has given ANY neutral or negative feedback because of ‘corrupted’ data, then it is likely that all their products are counterfeit/fake. These devices will appear to work to start with, and do not fail until after you have left positive feedback!

Always test the memory using RMPrepUSB – Quick Size Test or FakeFlashTest before you use it. It would be a shame if you used a 64GB SD card for all your photos on that ‘once-in-a-lifetime’ holiday to Africa, only to find out that all your photos have gone! Also, please ensure you give the seller negative feedback and report them to eBay for selling fake goods – if they knowingly continue to sell fake goods they are criminals and don’t deserve good feedback! Also, get the eBay seller onto the eBay Fake Sellers list here.

Buying an SD card on eBay? – If you are buying an SD/SDHC card from an eBay seller, check the full description very carefully. Some sellers are advertising a ’16GB SD Class 10 SDHC card’ and then in the description say ‘these cards have been tested and may vary from 2GB to 32GB’ and ‘this is normal for cheap cards’ and even ‘the data you store will be compressed so don’t worry if you can only store 2GB as really you can store more’. This is all a load of rubbish! These cards are ‘fake capacity’ cards and have been deliberately manufactured to deceive the buyer! eBay seem quite content to allow these sellers to sell their fake goods and even allow them to pretty-much state that they are fake!

I actually reposted this from another thread it might be us but it might be FAKE FLASH too

[Bilgus]

This part is what I think might be happening (if its not a bug with us)

https://rmprepusb.com/tutorials/007-all-about-fake-sd-cards-and-usb-flash-drives/#There_are_two_types_of_%E2%80%98fake_USB_Flash_drives%E2%80%A6

[jayglo]

Okay it's indeed giving me an error, here is the log. Does this means it is actually a fake card? And even a 4gb one, since it says this?
BAD MEMORY from sector 8185274 (3,996.0MiB) to sector 524281274 (255,996.0Mib)
 lol

Code: [Select]

FAKEFLASHTEST v1.1.5  [SSi]
[DRIVE 3]     249.0GiB Generic STORAGE DEVICE         
FFT - Quick Size Test (destructive)
F:     (no label)   [DRIVE 3]     249.0GiB Generic STORAGE DEVICE         

Writing marker blocks to drive 3 at 800MiB intervals.
5% complete  - 0 min 1 sec remaining
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Reading back marker blocks...
5% complete - 0 min 1 sec remaining
10% complete - 0 min 1 sec remaining
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85% complete - 0 min 1 sec remaining
90% complete - 0 min 1 sec remaining
95% complete - 0 min 1 sec remaining
Memory tested in blocks of 1638400 sectors [319sectors checked].

BAD MEMORY from sector 8185274 (3,996.0MiB) to sector 524281274 (255,996.0Mib)

WARNING: no memory detected at one or more locations.
Test took 1 seconds.
319 sectors checked.
                         *** FAILED ***

DEVICE HAS DUPLICATE OR BAD BLOCKS!

Recommended maximum usable partition size: 3,196.0Mib (approx. Last good Sector=8185274)

Unplug and re-connect the drive, then reformat it using Windows or RMPrepUSB.

[Bilgus]

well actually closer to 3GB

Yes this is probably fake flash, I have seen similar on a 5 year old card
when it shit the bed but if you just bought this then yes fake flash.

[Bilgus]

At this point anything you buy online is suspect.
The supply chain has been 'corrupted' ebay is ebay and you can't even trust amazon
to even send you the sellers product (THAT THE SELLER BOUGHT AND SHIPPED TO THEM!!)

So go brick and mortar haven't had a bad one bought local YET. (Except 1 PNY)
But I still run a capacity test before I spend hours transferring files because of the bad experiences from online sellers
and PNY

[jayglo]

Okay I think this is the defintive answer. I've ran a 10gb write verify test with h2testw and it gave error after 3.4gb.

Code: [Select]

Warning: Only 10000 of 255999 MByte tested.
The media is likely to be defective.
3.4 GByte OK (7263288 sectors)
6.3 GByte DATA LOST (13216712 sectors)
Details:0 KByte overwritten (0 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
6.3 GByte corrupted (13216712 sectors)
0 KByte aliased memory (0 sectors)
First error at offset: 0x00000000dcf87000
Expected: 0x00000000dcf87000
Found: 0xb3adcb72e11641ed
H2testw version 1.3
Writing speed: 6.11 MByte/s
Reading speed: 16.9 MByte/s
H2testw v1.4

Btw I wasn't aware of how bad the sd market is.

I've already contacted the ebay seller (a clown) and he told me he doesn't accept returns BUT to "ship it back so that he can take it back to his supplier and get a replacement for me".

Lmao he better return my money back quick or get his first very negative feedback with pictures included.

[Bilgus]

I think its a matter of time before we see them local too the counterfeits are getting pretty convincing
but a write/read test doesn't lie

[jayglo]

My god I hope not. I think SD brands should write in the card boxes to do these tests in order to make this madness stop.

Btw thanks for the help man, I was buggin out hours and hours. Glad this forum exists 

[rockbox_dev123]

I'll throw my $0.02 in and say to avoid SanDisk microSD cards with an ipod6g and rockbox.

Get a Samsung card as they're widely known to have fantastic compatibility.

Recently I bought a brand new SanDisk Ultra 512GB microSD from a brick and mortar store and it kept corrupting when used as a single card in an iFlash Quad with an iPod Classic (MB029LL/A*).

I returned it and instead bought a Samsung EVO Plus 512GB microSD which works perfectly.

This was also confirmed by a friend who had the same corruption issues even with genuine SanDisk cards in an iFlash Quad in an iPod Video.

However, I have a standard size (not microSD) SanDisk Extreme PRO UHS-I Card - 512GB in an iFlash Solo which works perfectly in an iPod Video.

Compatibility varies even with genuine cards and between devices.

[Bilgus]

I too have had good luck with evo cards in DAPS and RasPis
sample size like 5

[makeprop]

I'll throw my $0.02 in and say to avoid SanDisk microSD cards with an ipod6g and rockbox.

Get a Samsung card as they're widely known to have fantastic compatibility.

Recently I bought a brand new SanDisk Ultra 512GB microSD from a brick and mortar store and it kept corrupting when used as a single card in an iFlash Quad with an iPod Classic (MB029LL/A*).

I returned it and instead bought a Samsung EVO Plus 512GB microSD which works perfectly.

This was also confirmed by a friend who had the same corruption issues even with genuine SanDisk cards in an iFlash Quad in an iPod Video.

However, I have a standard size (not microSD) SanDisk Extreme PRO UHS-I Card - 512GB in an iFlash Solo which works perfectly in an iPod Video.

Compatibility varies even with genuine cards and between devices.

Do you know why this might be? At what level in the hardware do the issues exist?