Calibre not seeing Kobo in Windows 10 Preview builds

[Hypernova]

I was out of options, so I decided to try the very first solution (with minitool). It works now, and after I copy the backup back everything is behaving like before this whole thing+Windows 10 AU can see the internal storage, but now with progress % again. Meaning, this really have something to do with the patch.

[frostschutz]

Originally Posted by grahamch

hexdump

Sorry, I messed up the parameters, it was the other way around (-s 90 -n 420).

Currently almost finished with a Win10 program that patches the FAT32. Will upload the EXE later. It has to be executed in a Command Prompt that runs with administrator privileges for low level disk access.

Now the main problem is what to patch with, since the data I'm using is apparently causing side effects - I'll just try with whatever Windows uses, which just happens to randomly work [left alone by Kobo].

[freekobo]

Originally Posted by freekobo

I like how everyone pulled together here and was all like 'a bug on my kobo what? I don't think so! we have fix this now!' and came up with these great workarounds to solve the problem. It's a shame Kobo and Microsoft Developer's didn't work with such speed and dedication! Good work all!

Originally Posted by davidfor

What on earth makes you thing that Kobo is not working on this? There is a difference in what they can do versus some random bloke on a forum. Anything Kobo releases has to work for the millions of devices they have sold and be simple enough for the average user to do. It has to be built into a firmware release or application update. It also has to not break the device for non-Windows users. And people who haven't updated Windows.

What frostschutz has done is brilliant and very clever. But everyone who uses it does so at their own risk. He can't promise to fix your device for you if it screws up or you do while applying the fix.

What on earth makes you think, I think, they are not working on it? Of course they are!(I hope!) Basically I was just calling them slow, but yeah I suppose that they have to test more to ensure things work correctly. frostschutz's fix is definitely risky, I used the first fix by enigmedark on my Aura, backed up reformatted using minitool and then restored files. No problems since.

[itsmir]

Hi,

Just trying this out ahead of the Win10 update.

Device Kobo Glo HD
Firmware 3-19.5761

So installed patch, clown flashed up black & white, kobo working correctly (apart from no % on sleep screen which is not an issue for me).

However a non-updated Win10 PC can't see the device correctly. Clicking on the Kobo in File manager I get a "Please insert disc into KoboeReader' message and Calibre doesn't recognise it.

Is this expected behaviour on a non-updated Win10 PC?

[grahamch]

Originally Posted by frostschutz

Sorry, I messed up the parameters, it was the other way around (-s 90 -n 420).

No problem, change of parameters certainly tells a different story!

0000005a 0e 1f be 77 7c ac 22 c0 74 0b 56 b4 0e bb 07 00 |...w|.".t.V.....|
0000006a cd 10 5e eb f0 32 e4 cd 16 cd 19 eb fe 54 68 69 |..^..2.......Thi|
0000007a 73 20 69 73 20 6e 6f 74 20 61 20 62 6f 6f 74 61 |s is not a boota|
0000008a 62 6c 65 20 64 69 73 6b 2e 20 20 50 6c 65 61 73 |ble disk. Pleas|
0000009a 65 20 69 6e 73 65 72 74 20 61 20 62 6f 6f 74 61 |e insert a boota|
000000aa 62 6c 65 20 66 6c 6f 70 70 79 20 61 6e 64 0d 0a |ble floppy and..|
000000ba 70 72 65 73 73 20 61 6e 79 20 6b 65 79 20 74 6f |press any key to|
000000ca 20 74 72 79 20 61 67 61 69 6e 20 2e 2e 2e 20 0d | try again ... .|
000000da 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
*
000001da 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8d |................|
000001ea ef 02 d2 00 30 3d 61 8a f0 b2 6f 15 5b 35 fd 8c |....0=a...o.[5..|
000001fa 07 3d 6e ea |.=n.|
000001fe

[DAAVIID]

Originally Posted by frostschutz

Updated to v3 (again in the original post https://www.mobileread.com/forums/sho...86#post3367786), now checks for valid FAT32 header for both original and backup sectors (and tries the first 8 sectors of the disk).

Still working on a Windows program, won't finish with it today.

I tried v3 and does not work. I have solved MiniTool formatted with FAT32, has already rebooted and Windows 10 AU recognizes and calibre. Thank you
Kobo N905

[frostschutz]

@grahamch: You have very strange bytes at the end of this thing, no clue where that came from. [Well, it shouldn't matter in the first place, but...]

Since I already made it, I attach the Win10 EXE version of fatpatch (it will probably require 64bit Windows but that's what everyone has nowadays - right?).

This is a console program, you have to run it in Command Prompt with administrator permissions (search Command Prompt, right click, run as administrator, cd C:\Users\You\Downloads (or wherever you saved the file), fatpatch E: or fatpatch PhysicalDrive2 [if Win10 didn't give it a drive letter]. You can find the drive number in the disk management.

This program will ask for confirmation before doing anything. It should display "Found FAT32 in sector 0 LABEL KOBOeReader", then you got the right one and can confirm with YES in capital letters. Otherwise, don't confirm.

It didn't damage things for me but I can't guarantee it will do anything for you. Use at your own risk.

As for all the other issues, I don't know what's going on anymore. I give up... sorry folks.

~~~ Removed the fatpatch hack since Windows has released an update that resolved this issue. ~~~

[itsmir]

Originally Posted by itsmir

Hi,

Just trying this out ahead of the Win10 update.

Device Kobo Glo HD
Firmware 3-19.5761

So installed patch, clown flashed up black & white, kobo working correctly (apart from no % on sleep screen which is not an issue for me).

However a non-updated Win10 PC can't see the device correctly. Clicking on the Kobo in File manager I get a "Please insert disc into KoboeReader' message and Calibre doesn't recognise it.

Is this expected behaviour on a non-updated Win10 PC?

HELP! How do I get my kobo back to how it was pre-patch? Do I need to format the kobo drive now? Each time I attached Windows (no update version) it tells me the drive needs formatting

[frostschutz]

Originally Posted by itsmir

Each time I attached Windows (no update version) it tells me the drive needs formatting

I installed the updated Win10 directly using the updated ISO that MS released. I don't have an old Win10 to test with and I have no clue how your reverse problem now comes about.

I can give you a fatpatch-revert (which patches with the default bootcode used by busybox mkfs.fat) but I'm not sure this will solve your problem. It seems like you might have a different problem.

Somehow you change one thing and suddenly there is a landslide of other things that seem to be happening. I'm completely nonplussed at this point. Sorry for your troubles.

As long as it still works for the Kobo itself (it didn't factory reset on you, still lets you read your books, ...) you should be able to access your files with a Linux Live CD.


Edit: found out why it gets stuck on a black clown...

[itsmir]

Originally Posted by frostschutz

As long as it still works for the Kobo itself (it didn't factory reset on you, still lets you read your books, ...) you should be able to access your files with a Linux Live CD.

Ok - will give the reverse fix a go. If this doesn't work should I factory reset as a final fix? Losing data is no problem - am backed up & library on calibre

[frostschutz]

I will post up a v4 in a while, there was a syntax error that caused the script to end prematurely, so it stuck on the black clown and never rebooted. In this case you had to pin push reset button.

However the part with the syntax error only mattered when something else already went wrong before that - basically this condition is not triggered on my device which caused me to miss the error in my testing.

So there maybe another bug in the mod I have yet to find.

@itsmir: if nothing else helps, factory reset should fix it for you.

Do you have other mods installed? Which ones?

How this mod causes power/screensaver settings to vanish is what baffles me the most. Zero ideas on that one...

[itsmir]

Originally Posted by itsmir

Ok - will give the reverse fix a go. If this doesn't work should I factory reset as a final fix? Losing data is no problem - am backed up & library on calibre

Well - isn't this odd. Ran the revert file in kobo, meanwhile my main PC upgraded to Win10 1511 build. So once the wee clown disappeared, plugged him in and prayed. The updated PC sees the kobo and so does calibre - hooray!
Then tested on non updated PC and it also works correctly.

Even better, the % read is back on my sleep screen.

Everso slightly confused but happy - thank you @frostschutz!!

P.S. No mods here

[frostschutz]

Originally Posted by itsmir

Everso slightly confused but happy - thank you @frostschutz!!

Even more confused... when I use the revert, for me it just goes back to 0xff 0xff and Win10 complains again.

Updated to v4 (in the post back on page 8, single zip which contains both fatpatch and fatpatch-revert).

I think I'll leave it at that - sorry I couldn't come up with a better method - looking forward to what Kobo's fix will look like.

[dura]

Well, I solved it to my satisfaction.
Simply went back with the Windows back-up function to the system recovery point that was automatically made last saturday, the moment before the anniversity version was installed. I got my Windows from last week back and the reader is recognized again in Calibre and in the Kobo app. Disabled windows update for the time being, I'll switch it back on when it's safe.

[JSWolf]

For anyone who has formatted their Kobo with MiniTool Partition Wizard, is the partition still seen by a previous version of Windows 10?