MobileRead Forums - View Single Post - PRS-T1 Reader won't shutdown anymore

uboot · 05-12-2012, 06:14 AM

The reader definitely shouldn't be on 1.04 after sd rescue because it completely wipes the data and the system partition on the device, if it succeeds.

But it may be that the firmware version number is stored in the kernel or initial ramdisk, which is not touched by sd rescue...

So maybe shutdown issues are related to an incompatible combination of kernel and system partition (kernel was updated with 1.04 firmware).

I suggest to do the following:

0.) Be sure that the reader is connected to charger all the time
1.) Format the reader partition (= internal sdcard, the place where the reader stores ebooks, can be done from sony settings menu).
2.) Do sd rescue
3.) Apply Sony 1.04 firmware update
4.) Look if shutdown works now
5.) re-root with rupors minimal root package (see link in wiki)
6.) Look if shutdown works now

It also may be possible that the 1.04 kernel on the reader is not compatible with the sd rescue image. So, you could try to enter recovery console while sd recovery is running and then check kernel messages, syslog, etc.

The issue with the battery has to do with a file that stores battery capacity to allow for an accurate battery gauge. In the wiki there are instructions on how to re-calibrate the battery.

05-12-2012, 06:14 AM	#4
uboot Evangelist Posts: 425 Karma: 75216 Join Date: Nov 2011 Location: old europe Device: Kobo Mini, Tolino Epos 2	The reader definitely shouldn't be on 1.04 after sd rescue because it completely wipes the data and the system partition on the device, if it succeeds. But it may be that the firmware version number is stored in the kernel or initial ramdisk, which is not touched by sd rescue... So maybe shutdown issues are related to an incompatible combination of kernel and system partition (kernel was updated with 1.04 firmware). I suggest to do the following: 0.) Be sure that the reader is connected to charger all the time 1.) Format the reader partition (= internal sdcard, the place where the reader stores ebooks, can be done from sony settings menu). 2.) Do sd rescue 3.) Apply Sony 1.04 firmware update 4.) Look if shutdown works now 5.) re-root with rupors minimal root package (see link in wiki) 6.) Look if shutdown works now It also may be possible that the 1.04 kernel on the reader is not compatible with the sd rescue image. So, you could try to enter recovery console while sd recovery is running and then check kernel messages, syslog, etc. The issue with the battery has to do with a file that stores battery capacity to allow for an accurate battery gauge. In the wiki there are instructions on how to re-calibrate the battery. Last edited by uboot; 05-12-2012 at 06:34 AM.