Red Light - Freeze - Page 2

ThR · 10-13-2009, 07:04 AM

Sometimes, the dr1000s has this behaviour. Irex' support told me this, when my device have had this "error". After 10 charging-cycles the battery will work "correct" again.

Still waiting for the ready-to-eat banana-product ... :-(

pthwaite · 10-13-2009, 08:48 AM

I don't suppose they said how this "undocumented Feature" occurs?
Mind you, I suppose we can hope it is soemthing they will fix in the next firmware release (before adding new undocumented features

)

H

Shaggy · 10-13-2009, 10:15 AM

Quote:

Originally Posted by pthwaite

I don't suppose they said how this "undocumented Feature" occurs?
Mind you, I suppose we can hope it is soemthing they will fix in the next firmware release (before adding new undocumented features

)

If I had to guess, the battery driver is somehow getting out of whack (that's a technical term) and losing it's calibration to the battery. It sounds like what iRex is saying is that after several more charge cycles it will re-calibrate and start reporting the correct charge level again.

IMO, it sounds like a software bug in the driver that they get from their supplier. Hopefully they can get it corrected, but the driver is written by a third party, not iRex.

pthwaite · 10-13-2009, 01:32 PM

Shaggy,
I don't think it needs 10 cycles. In my case of the Red light of doom scenario, just a 5min charge and a reset put the whole thing back to registering a full battery and indeed it appeared to be full. I can accept that the 10 cyles may be required for the battery gauge to register correctly though.
H

Anyway, it is somewhat academic as there is nowt we can do about it except highlight the inconvenience

Shaggy · 10-13-2009, 02:22 PM

"10 cycles" is probably an over-estimate by tech support.

They also say that when you first get the device it takes 5 cycles before it is properly calibrated. In my experience, it doesn't really take that long.

jjgonche · 10-22-2009, 10:22 AM

I hope the problem is only an annoying behaviour of the battery driver, not a dead battery.

I've been suffering the problem for 4 or 5 cycles, but it doesn't stop yet. I will report after a few more cycles.

Thanks to all for the information.

Shaggy · 10-22-2009, 01:08 PM

One thing I've read recently about Lithium-Ion batteries in general is that if you continuously top them off, then after a while they can start to lose calibration with their battery meter. It's related to the battery technology, not any specific device.

Most of the sites I've seen say that topping off is the best thing for prolonging the overall life of the battery, but that every 30 recharges or so you should do a full discharge/charge cycle. That will supposedly help to keep the meter calibrated with the battery.

I think what iRex is saying is that if the meter does get severely out of calibration, it may take up to 5 - 10 full discharge/charge cycles to recalibrate it.

I don't know if that's exactly what is going on, but it does seem to fit.

jjgonche · 10-25-2009, 07:00 AM

I'm afraid but I must downgrade to firmware 1.6 to avoid red lights, freezes and weird battery drains.

Firmware 1.7 is very buggy to allow a normal use of the device.

Thanks to everybody, without your help I think I would sent the device to iRex for a battery change.

pthwaite · 10-25-2009, 03:43 PM

jjgonche,
Do you know what you are doing when it occurs? As I have only had it twice and I can't find any "theme" to the occurrence, it does appear random, but I don't appear to have had as many as yourself.

jjgonche · 10-27-2009, 09:42 AM

Quote:

Originally Posted by pthwaite

jjgonche,
Do you know what you are doing when it occurs? As I have only had it twice and I can't find any "theme" to the occurrence, it does appear random, but I don't appear to have had as many as yourself.

The problem was always there, in every boot. To avoid the problem I had to plug in the charger for a while, twenty minutes or so, some times even a couple of minute did it.

If I tried to turn on the device, without charging it before, there was a message about empty battery and a automatic shutdown. Of course, If I turned it on after the shutdown the red light and a frozen device were there, and I have to wait while the device was charging as I said.

Now, back on firmware 1.6, the device is operating like a charm, no more red lights and a "long" use without recharging (6-8 hours, only reading without any use of the stylus). I have to say goodbye to Spanish menus and tabs, but I can live without them, so waiting for firmware 1.8

.

Shaggy · 10-27-2009, 11:24 AM

Quote:

Originally Posted by jjgonche

Now, back on firmware 1.6, the device is operating like a charm, no more red lights and a "long" use without recharging (6-8 hours, only reading without any use of the stylus). I have to say goodbye to Spanish menus and tabs, but I can live without them, so waiting for firmware 1.8

.

Thanks, that's good information to know. I wouldn't have guessed that it was related to anything in the 1.7 firmware. I had assumed it was an existing bug.

jjgonche · 10-28-2009, 06:00 AM

Quote:

Originally Posted by Shaggy

Thanks, that's good information to know. I wouldn't have guessed that it was related to anything in the 1.7 firmware. I had assumed it was an existing bug.

No, no. Thanks a million to all of you, specially to Shaggy.

With the information about the weird behaviour of battery driver you help me to avoid a pain in the neck, sending the DR for an unnecessary reparation at iRex, and I suppose that replacing a battery is not cheap at all.

On the other hand, it's very difficult to see this problem on iRex forums, I did a search on the "IREX 1000" forum just a few minutes ago but found no references to the problem.

Dunno, maybe I'm doing the incorrect search

.

tjdean256 · 10-28-2009, 09:59 AM

Quote:

Originally Posted by jjgonche

On the other hand, it's very difficult to see this problem on iRex forums, I did a search on the "IREX 1000" forum just a few minutes ago but found no references to the problem. .

I have installed 1.7 and have never encountered this problem.

td

Shaggy · 10-28-2009, 10:32 AM

Quote:

Originally Posted by jjgonche

With the information about the weird behaviour of battery driver you help me to avoid a pain in the neck, sending the DR for an unnecessary reparation at iRex, and I suppose that replacing a battery is not cheap at all.

It does sound like a battery driver problem. I wonder if that got updated in 1.7 (can't remember).

Quote:

On the other hand, it's very difficult to see this problem on iRex forums, I did a search on the "IREX 1000" forum just a few minutes ago but found no references to the problem.

The iRex forums have been going downhill for awhile. Most of the knowledgeable/helpful people are on here.

Shaggy · 10-28-2009, 10:36 AM

Quote:

Originally Posted by tjdean256

I have installed 1.7 and have never encountered this problem.

It sounds like a battery/driver calibration issue. Maybe your charging pattern is different, and helps mitigate the driver from getting out of sync with the battery.

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10-13-2009, 07:04 AM	#16
ThR Tatütatuter Posts: 390 Karma: 3148 Join Date: Oct 2008 Location: Germany, Baden, Karlsruhe Device: Aura H2O, Glo HD, Paperwhite, PRS-950	Sometimes, the dr1000s has this behaviour. Irex' support told me this, when my device have had this "error". After 10 charging-cycles the battery will work "correct" again. Still waiting for the ready-to-eat banana-product ... :-(

10-13-2009, 08:48 AM	#17
pthwaite Fanatic Posts: 597 Karma: 430 Join Date: Aug 2008 Location: Ellesmere Port, UK Device: DR1000S Sony PRS505 iPad iPhone	I don't suppose they said how this "undocumented Feature" occurs? Mind you, I suppose we can hope it is soemthing they will fix in the next firmware release (before adding new undocumented features ) H

10-13-2009, 01:32 PM	#19
pthwaite Fanatic Posts: 597 Karma: 430 Join Date: Aug 2008 Location: Ellesmere Port, UK Device: DR1000S Sony PRS505 iPad iPhone	Shaggy, I don't think it needs 10 cycles. In my case of the Red light of doom scenario, just a 5min charge and a reset put the whole thing back to registering a full battery and indeed it appeared to be full. I can accept that the 10 cyles may be required for the battery gauge to register correctly though. H Anyway, it is somewhat academic as there is nowt we can do about it except highlight the inconvenience

10-13-2009, 02:22 PM	#20
Shaggy Wizard Posts: 4,293 Karma: 529619 Join Date: May 2007 Device: iRex iLiad, DR800SG	"10 cycles" is probably an over-estimate by tech support. They also say that when you first get the device it takes 5 cycles before it is properly calibrated. In my experience, it doesn't really take that long.

10-22-2009, 10:22 AM	#21
jjgonche Member Posts: 18 Karma: 10 Join Date: Sep 2008 Location: Ciudad Real, Spain Device: iRex DR1000S	I hope the problem is only an annoying behaviour of the battery driver, not a dead battery. I've been suffering the problem for 4 or 5 cycles, but it doesn't stop yet. I will report after a few more cycles. Thanks to all for the information.

10-22-2009, 01:08 PM	#22
Shaggy Wizard Posts: 4,293 Karma: 529619 Join Date: May 2007 Device: iRex iLiad, DR800SG	One thing I've read recently about Lithium-Ion batteries in general is that if you continuously top them off, then after a while they can start to lose calibration with their battery meter. It's related to the battery technology, not any specific device. Most of the sites I've seen say that topping off is the best thing for prolonging the overall life of the battery, but that every 30 recharges or so you should do a full discharge/charge cycle. That will supposedly help to keep the meter calibrated with the battery. I think what iRex is saying is that if the meter does get severely out of calibration, it may take up to 5 - 10 full discharge/charge cycles to recalibrate it. I don't know if that's exactly what is going on, but it does seem to fit.

10-25-2009, 07:00 AM	#23
jjgonche Member Posts: 18 Karma: 10 Join Date: Sep 2008 Location: Ciudad Real, Spain Device: iRex DR1000S	I'm afraid but I must downgrade to firmware 1.6 to avoid red lights, freezes and weird battery drains. Firmware 1.7 is very buggy to allow a normal use of the device. Thanks to everybody, without your help I think I would sent the device to iRex for a battery change.

10-25-2009, 03:43 PM	#24
pthwaite Fanatic Posts: 597 Karma: 430 Join Date: Aug 2008 Location: Ellesmere Port, UK Device: DR1000S Sony PRS505 iPad iPhone	jjgonche, Do you know what you are doing when it occurs? As I have only had it twice and I can't find any "theme" to the occurrence, it does appear random, but I don't appear to have had as many as yourself.

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