Openmoko Bug #1642: Discharged backup battery prevents power-on

Openmoko Public Trac bugs at
Sat Jul 19 14:40:11 CEST 2008

#1642: Discharged backup battery prevents power-on
 Reporter:  rwhitby   |       Owner:  hardware
     Type:  defect    |      Status:  new     
 Priority:  normal    |   Milestone:          
Component:  hardware  |     Version:  GTA02v5 
 Severity:  critical  |    Keywords:          
 Blocking:            |   Blockedby:          
 From what I can tell, a discharged backup battery (not the big main
 battery that everyone normally has problems with, the tiny coin cell
 battery that you can't see unless you take the front cover off and you
 can't replace without doing some soldering) will prevent any sort of
 powering-on of either a Neo1973 or FreeRunner.

 Three of my four GTA devices have backup battery voltages less than 0.7V,
 and consequently no longer work.  The good device has a backup battery
 voltage of 2.0V and works fine.

 See for

Ticket URL: <> <>
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