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+--- Thread: Need some help please - SB5101 not recognized by JTAG (/showthread.php?tid=1186)
Need some help please - SB5101 not recognized by JTAG - ricepowerm3 - 11-12-2011
I have a SB5101 that I think is bricked and I can not get my serial JTAG to recognize it.
When I plug the power in all lights come on for like 2/3 seconds and then turn off. When I click the detect in the JTAG console it return the following:
Read IDCODE: 0x80000000
Manufacture: 0x000
Part: 0x0000
Version: 0x8
Any suggestions/tricks or is this one toast? Thanks!
RE: Need some help please - SB5101 not recognized by JTAG - drewmerc - 11-12-2011
click detect as soon as you power on the modem as the bootloader seems to be crashing (timing is critical)
RE: Need some help please - SB5101 not recognized by JTAG - ricepowerm3 - 11-12-2011
Hi Drew, I tried to hit detect while the lights are on the all on but still no go. I still get the same results (can not recognize modem). Anything else I can try? Thank you.
(11-12-2011, 06:51 PM)drewmerc Wrote: click detect as soon as you power on the modem as the bootloader seems to be crashing (timing is critical)
RE: Need some help please - SB5101 not recognized by JTAG - drewmerc - 11-12-2011
you want to hit detect as the lights come on but there is always trying a hard reset
http://www.haxorware.com/forums/thread-355-post-1905.html#pid1905
RE: Need some help please - SB5101 not recognized by JTAG - Mordeth - 11-12-2011
(11-12-2011, 10:09 PM)ricepowerm3 Wrote: Hi Drew, I tried to hit detect while the lights are on the all on but still no go. I still get the same results (can not recognize modem). Anything else I can try? Thank you.
You may want to try parallel jtag, as it has never failed.
RE: Need some help please - SB5101 not recognized by JTAG - ricepowerm3 - 12-12-2011
Where's the 48 PIN TSOP? I can find the 3.3v (great picture) but unsure where the TSOP is.
I've read that connecting 3.3v to the JTAG pins might also reset the SB5101 but I can't find any images of the procedure as to which JTAG pins to touch.
I am using a parallel JTAG and not serial as I've originally indicated. Thanks.
(11-12-2011, 10:45 PM)Mordeth Wrote:(11-12-2011, 10:09 PM)ricepowerm3 Wrote: Hi Drew, I tried to hit detect while the lights are on the all on but still no go. I still get the same results (can not recognize modem). Anything else I can try? Thank you.
You may want to try parallel jtag, as it has never failed.
RE: Need some help please - SB5101 not recognized by JTAG - Mordeth - 12-12-2011
(12-12-2011, 04:23 AM)ricepowerm3 Wrote: Where's the 48 PIN TSOP?
![[Image: rsxugy.jpg]](http://i39.tinypic.com/rsxugy.jpg)
Right above the LED indicators. Have you check the soldered jtag pin joints with a multimeter?