Re: CMOS battery replacement
On Fri, 11 Dec 2015 15:38:54 -0800 Andrew Schenck wrote: > That's a lot more work than I had hoped. Thanks very much for the > info though. If I'm going to be soldering I might as well try to fix > the USB port and GPS port at the same time. > > -Andrew > > On 12/11/2015 1:30 PM, Benjamin Deering wrote: > > The backup battery (supercap?) is welded to its bracket and > > won't push out. > > > > I replaced the backup batteries in my GTA02s with supercaps several > > years ago. > > http://www.jeepingben.net/zen/zenphoto/index.php?album=2010/freerunner_supercap_install > > > > The parts I used didn't match the original footprint so it was a > > little work. If you get the exact replacement part, it would be > > easy if you have soldering experience. > > > > I vaguely remember a software problem causing the line that charges > > the backup bat/cap not being set high. > > > > Good luck, > > > > Ben > > > > On Fri, 11 Dec 2015 12:26:54 -0800 > > Andrew Schenck wrote: > > > >> The secondhand GTA04 I have now is pretty beat up and can't charge > >> because the USB port is disconnected. I've been using a spare > >> GTA02 as a charger, but every time I switch out batteries the > >> clock resets to 12/12/1999 16:00 and it's a pain to re-set it > >> since network time doesn't work. I couldn't find any information > >> on the wiki about replacing the CMOS battery to solve this > >> problem; has anyone here dealt with this same problem before and > >> have recommendations? I was successful in fixing the USB port, but never tried the GPS port. The GPS port is under a lot of stress when the board is installed. I ended up giving up on the traces and soldering thin wires to the ESD protection chip and to the leads on the jack. After getting the USB port connected electrically, I used JB weld epoxy to fix it mechanically. The repair lasted years including some pretty rough use and being reflow soldered. Good luck, Ben > >> > >> I disassembled a GTA02 enough to see the battery, but it didn't > >> yield to gentle pressure trying to slide out of its bracket and I > >> don't want to destroy things too badly in my attempt to fix them > >> so I didn't push too hard. Because of this, I don't even know the > >> exact type of button cell to buy to replace it. Any help would be > >> appreciated. > >> > >> Thanks, > >> -Andrew > >> > >> ___ > >> Openmoko community mailing list > >> community@lists.openmoko.org > >> http://lists.openmoko.org/mailman/listinfo/community > >> > > > > ___ > > Openmoko community mailing list > > community@lists.openmoko.org > > http://lists.openmoko.org/mailman/listinfo/community > > > ___ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community > ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: CMOS battery replacement
That's a lot more work than I had hoped. Thanks very much for the info though. If I'm going to be soldering I might as well try to fix the USB port and GPS port at the same time. -Andrew On 12/11/2015 1:30 PM, Benjamin Deering wrote: The backup battery (supercap?) is welded to its bracket and won't push out. I replaced the backup batteries in my GTA02s with supercaps several years ago. http://www.jeepingben.net/zen/zenphoto/index.php?album=2010/freerunner_supercap_install The parts I used didn't match the original footprint so it was a little work. If you get the exact replacement part, it would be easy if you have soldering experience. I vaguely remember a software problem causing the line that charges the backup bat/cap not being set high. Good luck, Ben On Fri, 11 Dec 2015 12:26:54 -0800 Andrew Schenck wrote: The secondhand GTA04 I have now is pretty beat up and can't charge because the USB port is disconnected. I've been using a spare GTA02 as a charger, but every time I switch out batteries the clock resets to 12/12/1999 16:00 and it's a pain to re-set it since network time doesn't work. I couldn't find any information on the wiki about replacing the CMOS battery to solve this problem; has anyone here dealt with this same problem before and have recommendations? I disassembled a GTA02 enough to see the battery, but it didn't yield to gentle pressure trying to slide out of its bracket and I don't want to destroy things too badly in my attempt to fix them so I didn't push too hard. Because of this, I don't even know the exact type of button cell to buy to replace it. Any help would be appreciated. Thanks, -Andrew ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: CMOS battery replacement
The backup battery (supercap?) is welded to its bracket and won't push out. I replaced the backup batteries in my GTA02s with supercaps several years ago. http://www.jeepingben.net/zen/zenphoto/index.php?album=2010/freerunner_supercap_install The parts I used didn't match the original footprint so it was a little work. If you get the exact replacement part, it would be easy if you have soldering experience. I vaguely remember a software problem causing the line that charges the backup bat/cap not being set high. Good luck, Ben On Fri, 11 Dec 2015 12:26:54 -0800 Andrew Schenck wrote: > The secondhand GTA04 I have now is pretty beat up and can't charge > because the USB port is disconnected. I've been using a spare GTA02 > as a charger, but every time I switch out batteries the clock resets > to 12/12/1999 16:00 and it's a pain to re-set it since network time > doesn't work. I couldn't find any information on the wiki about > replacing the CMOS battery to solve this problem; has anyone here > dealt with this same problem before and have recommendations? > > I disassembled a GTA02 enough to see the battery, but it didn't yield > to gentle pressure trying to slide out of its bracket and I don't > want to destroy things too badly in my attempt to fix them so I > didn't push too hard. Because of this, I don't even know the exact > type of button cell to buy to replace it. Any help would be > appreciated. > > Thanks, > -Andrew > > ___ > Openmoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community > ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
CMOS battery replacement
The secondhand GTA04 I have now is pretty beat up and can't charge because the USB port is disconnected. I've been using a spare GTA02 as a charger, but every time I switch out batteries the clock resets to 12/12/1999 16:00 and it's a pain to re-set it since network time doesn't work. I couldn't find any information on the wiki about replacing the CMOS battery to solve this problem; has anyone here dealt with this same problem before and have recommendations? I disassembled a GTA02 enough to see the battery, but it didn't yield to gentle pressure trying to slide out of its bracket and I don't want to destroy things too badly in my attempt to fix them so I didn't push too hard. Because of this, I don't even know the exact type of button cell to buy to replace it. Any help would be appreciated. Thanks, -Andrew ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
