PRS-T1 Battery problem, shuts down at 70% - Page 2

HANZ · 06-22-2012, 02:08 PM

I had a similar issue before. I did a factory reset (plus an SD-card rescue) and it did the trick for me. The links in this thread may help:

https://www.mobileread.com/forums/sho...d.php?t=176710

Btw: Don't use the wall charger, especially for the first recharge.

GeckoFriend · 06-22-2012, 03:07 PM

Quote:

Originally Posted by HANZ

I had a similar issue before. I did a factory reset (plus an SD-card rescue) and it did the trick for me. The links in this thread may help:

https://www.mobileread.com/forums/sho...d.php?t=176710

Btw: Don't use the wall charger, especially for the first recharge.

Thanks for replying. I plan to do a factory reset, probably later today. I don't think the SD-card rescue applies since my T-1 is not rooted. Please correct me if that's wrong.

Why do you recommend not using the wall charger? That seems contradictory to advice I've seen in other threads.

elcreative · 06-22-2012, 05:40 PM

Quote:

Originally Posted by GeckoFriend

Thanks for replying. I plan to do a factory reset, probably later today. I don't think the SD-card rescue applies since my T-1 is not rooted. Please correct me if that's wrong.

Why do you recommend not using the wall charger? That seems contradictory to advice I've seen in other threads.

Ignore about wall charger... generally offer a more reliable charge at a better current rating than standard USB port...

GeckoFriend · 06-29-2012, 08:23 PM

Did a factory reset 6/22 and today it shut down again. Any other suggestions?

uboot · 06-30-2012, 05:59 AM

I know that your reader is not rooted, but maybe you're facing the following bug:

https://www.mobileread.com/forums/sho...d.php?t=181673

GeckoFriend · 06-30-2012, 09:59 AM

Quote:

Originally Posted by uboot

I know that your reader is not rooted, but maybe you're facing the following bug:

https://www.mobileread.com/forums/sho...d.php?t=181673

Thanks for the reply but I don't think that's the problem. I don't shut my reader down, just let it go to sleep.

HANZ · 06-30-2012, 01:40 PM

Quote:

Originally Posted by GeckoFriend

Why do you recommend not using the wall charger? That seems contradictory to advice I've seen in other threads.

Just speaking from experience. I had issues charging via the wall charger when my PRS-T1 had the battery problem. It was slow to respond and it wouldn't charge properly when my battery was 100% drained. I haven't tried charging via the sockets ever since, but tbh I didn't need to charge at all because the battery life is so good right now

If your E-reader is fine after the reset, charge it however you like.

Shopaholic · 06-30-2012, 10:52 PM

Quote:

Originally Posted by HANZ

It was slow to respond and it wouldn't charge properly when my battery was 100% drained.

Never do that! Don't let the battery drain to nothing. Apparently it damages it. It's not a Ni-cad battery, it's a lithium ion battery and they like to be charged at the half way or 3/4 way point.

Hartsock · 07-01-2012, 11:53 PM

Quote:

Originally Posted by GeckoFriend

Thanks for the reply but I don't think that's the problem. I don't shut my reader down, just let it go to sleep.

My experience with myT1 is if I leave it on standby for three days and it automatically shuts off... when I next boot it the battery will show a big 0. If I turn it off rather than use standby the battery lasts a long time.

I think this particular instance is a firmware problem. I'm not at all sure the battery has 0 charge when this happens. It does boot up but I haven't seen how long it would keep running.

Venzent · 07-04-2012, 08:45 AM

As the most of us know, the PRS-T1 is running on Android. Android keeps track of the battery-usage with a file called batterystats.bin. Sometimes the statistics in this file aren't in sync with the real data on the battery and Android thinks it's empty while it is not.
If you have a rooted PRS-T1 this can easely be corrected by fully charging your reader and then delete te file, but if your device is not rooted, you can bring the batterystats.bin in sync with your battery by following these steps:
Device on -> fully charge the reader (red light goes out).
Disconnect charger, shut down reader (NOT stand-by) and fully charge untill red light goes out.
Discoonect and turn on device, charge full, disconnect, shutdown, charge full etc etc etc.
Repeat this process untill the red light goes out within a minute after connecting the charger when the device is off.
If the red light immediatly goes out (within a minute) after connecting the charger when the device is off, the batterystats.bin and the battery are in sync.
If you still have problems, something else is your problem.

Please let me know....

GeckoFriend · 07-04-2012, 12:03 PM

@venzent

Thanks for your reply and advice. I'll try your charging method asap (probably tomorrow - busy July 4th today) and see what happens. I'll definitely post the results.

GeckoFriend · 07-06-2012, 11:54 AM

Quote:

Originally Posted by Venzent

......if your device is not rooted, you can bring the batterystats.bin in sync with your battery by following these steps:
Device on -> fully charge the reader (red light goes out).
Disconnect charger, shut down reader (NOT stand-by) and fully charge untill red light goes out.
Discoonect and turn on device, charge full, disconnect, shutdown, charge full etc etc etc.
Repeat this process untill the red light goes out within a minute after connecting the charger when the device is off.
If the red light immediatly goes out (within a minute) after connecting the charger when the device is off, the batterystats.bin and the battery are in sync.
If you still have problems, something else is your problem.

Please let me know....

O

I did this today; it took six cycles before the red light turned off within one minute. When the reader was turned off and then plugged in, it automatically turned itself on again while charging. Is this the expected behavior?

Venzent · 07-06-2012, 05:06 PM

Quote:

Originally Posted by GeckoFriend

O

I did this today; it took six cycles before the red light turned off within one minute. When the reader was turned off and then plugged in, it automatically turned itself on again while charging. Is this the expected behavior?

Try'd it and indeed it turns itself on when connecting the charger. What you can do is disconnect and connect the charger, and then shut of the device, then it stays of....

6 cycles, that does mean it was way out of sync...I'm very curious if it solved your problem ;-)

GeckoFriend · 07-06-2012, 05:21 PM

Quote:

Originally Posted by Venzent

Try'd it and indeed it turns itself on when connecting the charger. What you can do is disconnect and connect the charger, and then shut of the device, then it stays of....

6 cycles, that does mean it was way out of sync...I'm very curious if it solved your problem ;-)

According to the Sony support FAQ's the reader will not charge if you turn it off when it's connected to the charger.

I certainly hope it does solve the problem; I'll post the results when I know.

Shopaholic · 07-06-2012, 08:27 PM

Quote:

Originally Posted by GeckoFriend

According to the Sony support FAQ's the reader will not charge if you turn it off when it's connected to the charger.

For which model?? I've charged all of mine - 300, 350 & T1 through an AC adapter when they're off and they've charged just fine.

That's weird that it would say that.

06-22-2012, 02:08 PM	#16
HANZ Member Posts: 17 Karma: 10 Join Date: Apr 2012 Device: Sony PRS-T1	I had a similar issue before. I did a factory reset (plus an SD-card rescue) and it did the trick for me. The links in this thread may help: https://www.mobileread.com/forums/sho...d.php?t=176710 Btw: Don't use the wall charger, especially for the first recharge. Last edited by HANZ; 06-22-2012 at 02:14 PM.

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06-29-2012, 08:23 PM	#19
GeckoFriend Guru Posts: 618 Karma: 1164945 Join Date: Jan 2012 Location: SF Bay Area, California, USA Device: iPhone 7+, iPad Mini4, Kindle Voyage	Did a factory reset 6/22 and today it shut down again. Any other suggestions?

06-30-2012, 05:59 AM	#20
uboot Evangelist Posts: 425 Karma: 75216 Join Date: Nov 2011 Location: old europe Device: Kobo Mini, Tolino Epos 2	I know that your reader is not rooted, but maybe you're facing the following bug: https://www.mobileread.com/forums/sho...d.php?t=181673

07-04-2012, 08:45 AM	#25
Venzent Member Posts: 13 Karma: 548 Join Date: Jan 2012 Device: Sony PRS-T1	As the most of us know, the PRS-T1 is running on Android. Android keeps track of the battery-usage with a file called batterystats.bin. Sometimes the statistics in this file aren't in sync with the real data on the battery and Android thinks it's empty while it is not. If you have a rooted PRS-T1 this can easely be corrected by fully charging your reader and then delete te file, but if your device is not rooted, you can bring the batterystats.bin in sync with your battery by following these steps: Device on -> fully charge the reader (red light goes out). Disconnect charger, shut down reader (NOT stand-by) and fully charge untill red light goes out. Discoonect and turn on device, charge full, disconnect, shutdown, charge full etc etc etc. Repeat this process untill the red light goes out within a minute after connecting the charger when the device is off. If the red light immediatly goes out (within a minute) after connecting the charger when the device is off, the batterystats.bin and the battery are in sync. If you still have problems, something else is your problem. Please let me know....

07-04-2012, 12:03 PM	#26
GeckoFriend Guru Posts: 618 Karma: 1164945 Join Date: Jan 2012 Location: SF Bay Area, California, USA Device: iPhone 7+, iPad Mini4, Kindle Voyage	@venzent Thanks for your reply and advice. I'll try your charging method asap (probably tomorrow - busy July 4th today) and see what happens. I'll definitely post the results.