Sony PRS T1 (... to brick or not to brick)

diet1975 · 02-12-2022, 06:41 AM

Hi all,

A silent reader on this forum here

I have an old Sony PRS T1 for my daughter which was unrooted as far as I know. No updates or what so ever, just the stock firmware.
The reader just was not able to start anymore. i thought it just ran out of batteries so did not pay any attention to it for a while.
Once I try to charge the battery, it went into some sort of loop. Flickering screen -> opening book with no progress in the progress bar -> flickering screen -> opening book with no progress -> etc
I am able to start the reader with a rescue image, connect the book to my computer and login with putty as root.
I have tried to change firmware versions which were available @ https://projects.mobileread.com/read...lash_packages/
Unfortunately no success
I thought that there might be something wrong with the partitioning so I have followed the link below without success:
https://wiki.mobileread.com/wiki/PRS...itioning_Guide

Does any of you have a suggestion which might help?

Yes of course, I can buy a new one but if this can be repaired, it would be a better option

Thx for reading and suggestions

JSWolf · 02-12-2022, 11:11 AM

What happens if you plug the T1 into the computer? If you can see the partition, remove this eBook. And then eject and see what happens.

diet1975 · 02-12-2022, 12:52 PM

I already removed all ebooks from this reader. So I'm open for any suggestion

diet1975 · 02-14-2022, 04:57 PM

I had a second working reader which I could use....
So I started the reader in rescue mode and connected via Putty to create a backup:
#mount -o remount,rw /dev/mmcblk0p1 /initrd/mnt/sd
#for i in 5 6 7 8 9 10
do
dd if=/dev/mmcblk2p$i of=/initrd/mnt/sd/mmcblk2p$i.img
done

I started the initial boot-looped-reader with the SD with backup files and tried to restore them
#mount -o remount,rw /dev/mmcblk0p1 /initrd/mnt/sd
#for i in 5 6 7 8 10
do
dd if=/initrd/mnt/sd/mmcblk2p$i.img of=/dev/mmcblk2p$i
done

I was thought this might be the working option... but sadly no...

NonaSuomy · 04-30-2022, 11:50 AM

Try booting the OS from SDCard
https://www.mobileread.com/forums/sh...d.php?t=329270
Worked for me (Corrupted downgrade / corrupted eMMC / no wifi / usb crashes or won’t start unit) look further down the thread where they explain it further as it may be possible to just do it all from rupor’s image is depending where your eMMC corruption is. Download the image there as well and flash it to the SDCard it won’t have a serial number or MAC address but wifi will still work fine.

02-12-2022, 06:41 AM	#1
diet1975 Junior Member Posts: 3 Karma: 10 Join Date: Feb 2022 Device: Sony PRS T1	Sony PRS T1 (... to brick or not to brick) Hi all, A silent reader on this forum here I have an old Sony PRS T1 for my daughter which was unrooted as far as I know. No updates or what so ever, just the stock firmware. The reader just was not able to start anymore. i thought it just ran out of batteries so did not pay any attention to it for a while. Once I try to charge the battery, it went into some sort of loop. Flickering screen -> opening book with no progress in the progress bar -> flickering screen -> opening book with no progress -> etc I am able to start the reader with a rescue image, connect the book to my computer and login with putty as root. I have tried to change firmware versions which were available @ https://projects.mobileread.com/read...lash_packages/ Unfortunately no success I thought that there might be something wrong with the partitioning so I have followed the link below without success: https://wiki.mobileread.com/wiki/PRS...itioning_Guide Does any of you have a suggestion which might help? Yes of course, I can buy a new one but if this can be repaired, it would be a better option Thx for reading and suggestions

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02-12-2022, 11:11 AM	#2
JSWolf Resident Curmudgeon Posts: 73,957 Karma: 128903250 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	What happens if you plug the T1 into the computer? If you can see the partition, remove this eBook. And then eject and see what happens.

02-12-2022, 12:52 PM	#3
diet1975 Junior Member Posts: 3 Karma: 10 Join Date: Feb 2022 Device: Sony PRS T1	I already removed all ebooks from this reader. So I'm open for any suggestion

02-14-2022, 04:57 PM	#4
diet1975 Junior Member Posts: 3 Karma: 10 Join Date: Feb 2022 Device: Sony PRS T1	I had a second working reader which I could use.... So I started the reader in rescue mode and connected via Putty to create a backup: #mount -o remount,rw /dev/mmcblk0p1 /initrd/mnt/sd #for i in 5 6 7 8 9 10 do dd if=/dev/mmcblk2p$i of=/initrd/mnt/sd/mmcblk2p$i.img done I started the initial boot-looped-reader with the SD with backup files and tried to restore them #mount -o remount,rw /dev/mmcblk0p1 /initrd/mnt/sd #for i in 5 6 7 8 10 do dd if=/initrd/mnt/sd/mmcblk2p$i.img of=/dev/mmcblk2p$i done I was thought this might be the working option... but sadly no...

04-30-2022, 11:50 AM	#5
NonaSuomy Junior Member Posts: 5 Karma: 10 Join Date: Apr 2022 Device: None	Try booting the OS from SDCard https://www.mobileread.com/forums/sh...d.php?t=329270 Worked for me (Corrupted downgrade / corrupted eMMC / no wifi / usb crashes or won’t start unit) look further down the thread where they explain it further as it may be possible to just do it all from rupor’s image is depending where your eMMC corruption is. Download the image there as well and flash it to the SDCard it won’t have a serial number or MAC address but wifi will still work fine.