Re: GTA01 Battery loader problem
El Friday, 30 de January de 2009 16:24:50 Matthias Barmeier va escriure: It worked perfect, until the night the battery dies. Do you think it could die by just lying around connected to a powered PC. The first time I bricked mine all was working OK until I need to reboot the GTA01. I was working with a / on uSD. I needed a file a knew it was on NAND but in u-boot but I didn't pass the correct mtdparts to the kernel and mountend mtdblock I'm not sure if readonly took the file and unmounted mtdblock, two days latter at a reboot I found I had bricked it. ___ support mailing list support@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/support
Re: GTA01 Battery loader problem
Matthias Barmeier escreveu: Chris Syntichakis schrieb: Hi, How long do you have this battery? Maybe its lost the capacity... I think you could dis-charge it completely (maybe using an external battery dis-charger) and then recharge again (on the openmoko, a bit tricky , eh?) I will try. Don't. Discharging the battery completely will make its protection circuit cut off, making it much harder to restore (LiIon batteries are not supposed to be discharged too much, it damages them). In fact, that is probably precisely what happened: the GTA01 did not switch to the correct charging mode (because it needs to be able to power on to do so), and discharged the battery too much. The way to recover from it on GTA01 is to jump-start the battery (since the GTA01 cannot boot only on USB power, which would allow enabling the charger), which is not a recommended thing to do (and might in fact be dangerous). -- Cesar Eduardo Barros ces...@cesarb.net cesar.bar...@gmail.com ___ support mailing list support@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/support
Re: GTA01 Battery loader problem
El Saturday, 24 de January de 2009 16:40:18 Matthias Barmeier va escriure: The problem: I was unable to power on my GTA01. I removed the battery checked the voltage. The voltmeter shows 3.2V. I put the battery back in the GAT01 and plugged the USB cable in the GTA01 and in my PC that was already running. I will suspect a bricked GTA01, in that state acts as a power sink. ___ support mailing list support@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/support
Re: GTA01 Battery loader problem
Jose Luis Perez Diez schrieb: El Saturday, 24 de January de 2009 16:40:18 Matthias Barmeier va escriure: The problem: I was unable to power on my GTA01. I removed the battery checked the voltage. The voltmeter shows 3.2V. I put the battery back in the GAT01 and plugged the USB cable in the GTA01 and in my PC that was already running. I will suspect a bricked GTA01, in that state acts as a power sink. ___ support mailing list support@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/support It worked perfect, until the night the battery dies. Do you think it could die by just lying around connected to a powered PC. Ciao Matze -- --- SOURCEPARK GmbH Gesellschaft für Softwareentwicklung Dipl.-Inform. Matthias Barmeier Geschäftsführer Helmholtzstraße 2-9 Gebäude M 10587 Berlin Tel:+49 (0)30/398 068 30 Fax:+49 (0)30/398 068 39 e-mail: matthias.barme...@sourcepark.de WWW:www.sourcepark.de --- Sitz der Gesellschaft: Berlin Handelsregister: Amtsgericht Berlin-Charlottenburg, HRB 80254 Geschäftsführer: Matthias Barmeier, Harald Dürr --- Diese E-Mail kann vertrauliche und/oder rechtlich geschützte Informationen enthalten. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser E-Mail ist nicht gestattet. ___ support mailing list support@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/support
Re: GTA01 Battery loader problem
Chris Syntichakis schrieb: Hi, How long do you have this battery? Maybe its lost the capacity... I think you could dis-charge it completely (maybe using an external battery dis-charger) and then recharge again (on the openmoko, a bit tricky , eh?) chris Matthias Barmeier wrote: Hi, I observed a strange behavior of my battery. May be someone can give some hints on how to avoid it. I will try. Thanks. Ciao Matze -- --- SOURCEPARK GmbH Gesellschaft für Softwareentwicklung Dipl.-Inform. Matthias Barmeier Geschäftsführer Helmholtzstraße 2-9 Gebäude M 10587 Berlin Tel:+49 (0)30/398 068 30 Fax:+49 (0)30/398 068 39 e-mail: matthias.barme...@sourcepark.de WWW:www.sourcepark.de --- Sitz der Gesellschaft: Berlin Handelsregister: Amtsgericht Berlin-Charlottenburg, HRB 80254 Geschäftsführer: Matthias Barmeier, Harald Dürr --- Diese E-Mail kann vertrauliche und/oder rechtlich geschützte Informationen enthalten. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser E-Mail ist nicht gestattet. ___ support mailing list support@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/support
Re: GTA01 Battery loader problem
Hi, How long do you have this battery? Maybe its lost the capacity... I think you could dis-charge it completely (maybe using an external battery dis-charger) and then recharge again (on the openmoko, a bit tricky , eh?) chris Matthias Barmeier wrote: Hi, I observed a strange behavior of my battery. May be someone can give some hints on how to avoid it. -- View this message in context: http://n2.nabble.com/GTA01-Battery-loader-problem-tp2209219p2242091.html Sent from the Openmoko Support mailing list archive at Nabble.com. ___ support mailing list support@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/support
GTA01 Battery loader problem
Hi, I observed a strange behavior of my battery. May be someone can give some hints on how to avoid it. The problem: I was unable to power on my GTA01. I removed the battery checked the voltage. The voltmeter shows 3.2V. I put the battery back in the GAT01 and plugged the USB cable in the GTA01 and in my PC that was already running. I measured the voltage again next morning: 0.0V !? The PC was powered on the hole night. How can I charge the battery now ? I inserted it again in the GAT01 and waited several hours, I got 0.0V again. Any hints ? Ciao Matze ___ support mailing list support@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/support
