01-19-2012, 04:21 AM | #1 |
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undo changes
Hello all;
[ if you want to skip the reading, my question itself is at the ending ] About a week ago, I rooted and customized my PRS-T1... I'm satisfied with everything the reader can accomplish (more than I'd have thought is possible)... => but for several days now, my reader app is behaving bad; it's OK for normal reading, but when I close it, I get an error (stopped unexpectedly, try again or something like that - and then force close button); the same happens when I go (in the reader app) to Options >> More >> Settings (or preferences in English, I don't know): same error; I thought, something wrong with the permissions (had to do a reset a while before that, installed fixPermissions app - but that only does data-apps, no system-apps)... Then I tried the fix_permissions script, running via the terminal emulator on the device itself (no adb installed)... as response I get: "shift: can't shift that many"; so, opened the script on the pc, saw an option "-f" for only specifying the apk; I tried to find the apk of the built-in reader app, if I'm correct, it's at /system/app/EbookReader.apk (reinstalling of that doesn't work ); so I run: "fix_permissions -f /system/app/EbookReader.apk", but that doesn't help neither (anymore? I think it once worked, but after cold boot, was all over again and running fix_permissions helped nothing).... Now I'm thinking of getting started "fresh" again (a little more experienced now)... => I've seen some "initialization" entry in the settings of the reader; one option to format the memory, and an option to restore the defaults.... I also saw the "factory reset" entry on the wiki (which is very helpful)... But I don't know what having to do now; => I have an extended partition on my microSD, with apps linked to it; Just format the memory, restore the defaults and a factory reset: is that enough to start fresh, or do I first have to undo the rooting, or copying some image file again? [yes, everything should be formatted, I'm not going to loose the files ] Thanks in advance! |
01-19-2012, 11:07 AM | #2 |
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Well, it would be possible to install the adapted EbookReader.apk (as mentioned in the other thread)... but as I see, there are still some little bugs in it....
So, it would be very useful if someone has some advice on this problem - of how to do a full reset with a rooted and adjusted device..... => because maybe someone has experience with it, if that's not the case - I'm going to try the factory reset and see what happens then |
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01-19-2012, 12:04 PM | #3 |
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Or other possibility:
someone who can explain me how to reinstall the EbookReader.apk (without using adb)? But an answer to the previous posts is still preferred (to do a clean start - and I've read the wiki several times => maybe I didn't understand some part?) |
01-20-2012, 04:31 AM | #4 |
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OK, I'm going to format the memory, and reset to factory settings - and see what happens
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01-20-2012, 04:55 AM | #5 |
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I get more and more admiration for the root-method.....
So, I formatted the SD card and the internal reader-memory; then I did a factory reset, and started playing with the device - but the root was still active (me happy ) Why happy?: my reader app is repaired (no stupid errors anymore), and my other apps are all still available (even my custom installed apps) => after 2 cold boots, everything still going smooth! (only the contacts-app is always gone on each cold boot, installing again takes about 5 seconds - but that's the only thing that maybe can change in the future -- if I find lots of time somewhere, I maybe can build a new Android app myself, but..... that will have to wait)) Complete time used for formatting the memory and doing a factory reset: <5 minutes (and my Adobe DRM is still active on the device) Just for your information |
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01-20-2012, 04:58 AM | #6 |
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maybe your filesystem got corrupted. this can happen when the reader crashes or is reset...
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01-20-2012, 11:06 AM | #7 |
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We are going to see this behaviour with increased frequency, I suppose!
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01-21-2012, 03:15 AM | #8 |
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But what is it like with other android devices? Do they fsck before mounting? And how about the old embedded Linux based PRS readers?
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01-21-2012, 09:35 AM | #9 | |
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Quote:
About other android... I don't know. CyanogenMod ROMs checks it at boot... But I haven't had any other PRS before this T1 Anyway, this have to be done... somehow |
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01-22-2012, 12:23 PM | #10 |
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Well, after doing some testing, I think Calibre is the cause (when you use it in the wrong way)....
=> I saw that when you just closed Calibre, without ejecting the device, and then unmounted the device in Linux, it had this behavior. I think it caused some problem in the book.db database file.... Everytime I did it in the "wrong" way, my reader started working "weird" (with that force closing message when closing the reader-app, and when going into the settings of the reader-app => to see e.g. details / more info about the book) Resetting works (beautifully), and now, when properly ejecting the reader first from Calibre, and then unmounting it in my OS, I don't have any problem at all anymore; so probably just my fault (not knowing how to use Calibre ) I learned something, but yes, sometimes the reader should do a fsck (every 50 boots at least or so?) to check the integrity of the filesystem; else it will be giving problems in the future! (or they would have implemented some other way of assuring the integrity of the filesystem - but I doubt about that ) |
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