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Old 08-19-2015, 04:28 PM   #1426
Desdinova
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3.17 added a program called sickel that rebooted the machine if it detected the reader had frozen. Some people felt the timeout was a little short and certain malformed files could trigger it
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Old 08-19-2015, 04:30 PM   #1427
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Quote:
Originally Posted by akorx View Post
What do you mean (my english is not very good)?
sickel is something that was added in 3.16.10. It forces your Kobo ereader to reboot if the device becomes unresponsive. There were reports of users having problems with sickel being too sensitive and rebooting endlessly. Some of those issues were resolved in 3.17.0 but not all. So Kobo stopped releasing 3.17.0 and has now put out 3.17.3 which may have finally resolved those issues.
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Old 08-19-2015, 04:33 PM   #1428
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it seems the sickel timout was raised considerably

edit: seems it was disabled instead, it still runs but all you get is a log message

Code:
Aug 19 20:37:46 sickel: void SickelService::reboot() something is taking too long and I want to reboot!
Last edited by frostschutz; 08-19-2015 at 04:38 PM.
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Old 08-19-2015, 04:36 PM   #1429
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Thanks for the explanations Desdinova and MGlitch, I've understood ! it's not always easy for non english people to understand those technical posts.

Two questions but the first is the main :

1. I can imagine Sickle consumes battery if this "function" is always checking the tasks????

2. If I take 3 minutes to read a page, can Sickle think that the page has frozen? => I imagine that Sickle is like "nagios" : only some tasks are checked, so this "freeze" is not detected and it's the reason why there is no reboot...
Last edited by akorx; 08-19-2015 at 05:01 PM.
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Old 08-19-2015, 05:05 PM   #1430
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The first post of the Direct Links to Kobo Firmware has been updated to include 3.17.3.

This release is currently unnamed. It's still too early in the morning, but I've already used that as a release name. And I wouldn't want to be repetititive.
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Old 08-19-2015, 06:02 PM   #1431
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Quote:
Originally Posted by murg View Post
The first post of the Direct Links to Kobo Firmware has been updated to include 3.17.3.

This release is currently unnamed. It's still too early in the morning, but I've already used that as a release name. And I wouldn't want to be repetititive.
I'm calling this one: The Pissing on a Spark Plug release
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Old 08-19-2015, 06:18 PM   #1432
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Quote:
Originally Posted by akorx View Post

2. If I take 3 minutes to read a page, can Sickle think that the page has frozen? => I imagine that Sickle is like "nagios" : only some tasks are checked, so this "freeze" is not detected and it's the reason why there is no reboot...
sickel is just ensuring that the nickel process is still alive and sending heartbeats to it; it makes no difference how long you take to read a page nickel will still be sending it's heartbeats.
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Old 08-19-2015, 09:35 PM   #1433
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Quote:
Originally Posted by akorx View Post
1. I can imagine Sickle consumes battery if this "function" is always checking the tasks????

Someone else asked this, though I don't remember where on the forum the post was.

The answer is essentially that it consumes next to no power. Likely not enough to make a measurable difference in the battery life. The answer was more detailed but I don't recall the specifics of it.
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Old 08-20-2015, 04:58 AM   #1434
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I want to change my Glo... I don't know if I will take a H20 or a Glo HD. On the Glo NON HD we can replace the main card that is a SD by a bigger. Is it possible to do the same on Glo HD?
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Old 08-20-2015, 05:13 AM   #1435
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Yes - see also my Magic Memory Upgrade Mod...
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Old 08-20-2015, 08:34 AM   #1436
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Quote:
Originally Posted by MGlitch View Post
Someone else asked this, though I don't remember where on the forum the post was.

The answer is essentially that it consumes next to no power. Likely not enough to make a measurable difference in the battery life. The answer was more detailed but I don't recall the specifics of it.
I did actually, and GeoffR answered this to me
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Old 08-20-2015, 09:53 PM   #1437
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Hello fellow kobo users, call me old school but i inherited a kobo original wifi N647 and it had been updated to what seems a bad firmware (1.9.12) judging by the posts here. Interestingly, my kobo works (i can read books) but wifi wont work (connects to network successfully, but cant go on store). Also i cant connect to mac via desktop kobo app...

Basically, im asking for the original firmware for N647 to try and downgrade back

BTW will usb partitionning mode work for that? or do i have to do something else? (do i just put the file in the created partition?)

Thanks a bunch,

Bao
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Old 08-21-2015, 04:47 AM   #1438
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Quote:
Originally Posted by bao007 View Post
Hello fellow kobo users, call me old school but i inherited a kobo original wifi N647 and it had been updated to what seems a bad firmware (1.9.12) judging by the posts here. Interestingly, my kobo works (i can read books) but wifi wont work (connects to network successfully, but cant go on store). Also i cant connect to mac via desktop kobo app...

Basically, im asking for the original firmware for N647 to try and downgrade back

BTW will usb partitionning mode work for that? or do i have to do something else? (do i just put the file in the created partition?)

Thanks a bunch,

Bao
Basically, you unzip the needed firmware in the .kobo directory (including subdirectory that is in the zip file) and then safely eject your device.
It will reboot and installing the older firmware by itself.
You don't need to (re) partition it.
This works for downgrade and upgrade the same.
Thats how it works in the newer devices, I don't know for the N647 and which firmware file you need as I don't see that model in the firmware list.
If you want to flash an image,then you would need a img flashing program for it.
More information you can find here:
https://www.mobileread.com/forums/sho...d.php?t=231935
There you can ask for an image too, I am almost sure that davidfor will have it.
Last edited by Nick_1964; 08-21-2015 at 04:57 AM.
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Old 08-21-2015, 06:15 AM   #1439
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I had some serious trouble upgrading my H2O from 3.15 to 3.17. It performed the upgrade, then crashed so hard the screen colors were inverted and I had to do a full reset.

Luckily, I had a recent backup on hand, so I was able to upgrade the bare device, restore the backup, add the couple of books I'd put on there since the backup, and get up and running as if nothing had happened. Lost a couple of hours off of my time-read stats, but that's no big deal.

All the same, I think I'm going to do a full backup before upgrading to 3.17.3...
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Old 08-21-2015, 05:06 PM   #1440
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Originally Posted by Rev. Bob View Post
I had some serious trouble upgrading my H2O from 3.15 to 3.17. It performed the upgrade, then crashed so hard the screen colors were inverted and I had to do a full reset.

Luckily, I had a recent backup on hand, so I was able to upgrade the bare device, restore the backup, add the couple of books I'd put on there since the backup, and get up and running as if nothing had happened. Lost a couple of hours off of my time-read stats, but that's no big deal.

All the same, I think I'm going to do a full backup before upgrading to 3.17.3...
When I went 3.15.0 to 3.17.0 I did a backup. Then I installed 3.17.0. First patch I applied was the one to disable the sickel reboot. From there everything worked well. Still does work well.
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