Joerg Reisenweber wrote:
Powered via (this particular) 100/500mA USB-Host, none of both U_Boot would
boot without battery. Though it's happily working on linux without GSM just
on USB-power, after boot with battery.
I have had some success (not all the time) running under Linux with USB
power and no battery, but I had to turn off the charger through "echo 0
> /sys/.../chgmode" as well as turning off GSM.
I have also found that WiFi stops working when the battery is removed,
but it recovers when I re-insert the battery.
or to apply the patch from my first email
to your NAND u-boot.
If you point me to a kernel-image I might flash with dfu-util, I for sure will
try what I find with this one.
http://members.shaw.ca/mmontour/neo/u-boot-2008082501.udfu is the u-boot
image that I'm currently using (stable git branch + my patch from last
night).
My FR is a GTA02v5 with datecode 20080619 and it will not power up at
all without a battery (due to the "small SYS capacitor" mentioned
above?) so I can't test this scenario.
You tried with OM USB power supply, and (factory) NOR-boot?
Yes. I just get a few clicks, no LEDs or other signs of life.