Thread: Kobo Blocked to Device connection screen
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Old 08-22-2016, 10:09 PM   #10
davidfor
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Posts: 24,905
Karma: 47303824
Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by KuroNoKishi View Post
Strangely...
I'm try to recover my serial number from SD making an image with dd (on Mac OSX) using the typical:

sudo dd if=/dev/disk2 of=KoboBKUP.img bs=1m

But it takes forever (I had stopped when images from a 2Gb SD card reaches 3.5 Gb...)
As you have discovered, some of the Glo's have 4GB cards in them. These are the later devices and it was probably a substitution because they could be obtained cheaply. But, the same image was used and half the space went unused. There is thread about expanding the book partition to use this.
Quote:
Maybe is the SD totally corrupt ? How can I recover my serial number ?
Anyway, in case I succeed, serial number is at offset 200, how much it is long ?
Quote:
Originally Posted by KuroNoKishi View Post
In the (extralong) file I get stopping dd I have at offset 512 (hopping hex count in decimal 512=200h)I found SN-XXXA3110154YYY_1210311ZZZ

Xs Ys and Zs are placeholders for digit, A is actually a letter.

is this the serial ? all or just the part prior to the underscore ?
The serial number is the first 13 characters after the "SN-". The first three should be 613 and are the numeric part of the model number. The rest is random letters and numbers.
Quote:
I will insert this on the received image and give it a try.
Quote:
Originally Posted by KuroNoKishi View Post
Just noticed... My Internal SD card is 4 Gb (the actual number was covered with an ink yellow dot on the card) see image on flickr:
Kobo internal memory exposed

I will let dd go for more time...
Got my 3,97Gb backup image

Tried SD with new image.
Nothing still happened.
If you have another card, I would try that. Anything up to 32GB should work and you can expand the book partition to use the extra space.
Quote:
Checked battery is at 4,15 Volt.
Microscopic connector won't allow me to check while it is connected...

I'm loosing all hopes.
It doesn't sound good

One thing you haven't mentioned: Does the LED flash when you turn the device on? And what colour and what does it do?
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