no reception, 3 bars on original firmware

This is merely a historical archive of years 2008-2021, before the migration to mailman3.

A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/baseband-devel@lists.osmocom.org/.

Calvin Balke cbalke at charter.net
Fri Mar 11 06:11:22 UTC 2011


You don't have to answer this right now if you don't want to, it can 
wait.  I have been working on this for a few months.  I have never 
posted on this mailing list before, but I have read many of the other posts.
Just so you know, I am currently 14 years old and I have autism(which is 
the reason why I am obsessed with computers and electronics).

I am having trouble getting any signal at all. the signal is around -111 
dBm on every channel with the rf gain set on high.  The original 
firmware works fine with an at&t sim card and has 3 bars.  The linux 
distro that I am running is backtrack 4.  While trying to diagnose this, 
I tried mobile and layer23 on a known good channel from a nokia 3100 
series phone in netmonitor mode. and in scanning mode on most of the 
branches that I compiled.  I have looked on the wiki and google.  I have 
also tried to figure out how parts of the source code work.  I have even 
tried this on two different boards, the compal_e88 and compal_e86.  Has 
anybody else had this problem?  Where exactly is the antenna switch?  
That could be the problem, if it connects to the headset slot.  I have a 
homemade t191 cable, that uploads the firmware just fine, but I am 
wondering about the LOST message after the dsp download.  What does the 
LOST message mean?

Thank you for your help,
Calvin




More information about the baseband-devel mailing list