jspeer Posted August 12, 2013 Share Posted August 12, 2013 After reflashing my ap121u a few times, I bricked it pretty good. I connected my handy serial cable (yes, I left the power line off) and repaired the firmware. Not sure what I did wrong next, but after I replaced the 5v power line from my usb port with the 12v power brick (standard one that ships with the Mark IV) the unit won't power up. No lights turn on. When the power line is disconnected, all LEDs flash for a millisecond. The unit does not boot up, the unit shows nothing on the serial port. I'm certain I blew an IC somewhere on the board, but no idea which one. Any suggestions which IC I need to replace to fix the power issue? Thx. Quote Link to comment Share on other sites More sharing options...
Foxtrot Posted August 12, 2013 Share Posted August 12, 2013 I doubt you will blew an IC, unless it was the atheros chip and you blew that by shorting the antenna. Otherwise you probably friend a cap or a resistor. Quote Link to comment Share on other sites More sharing options...
jspeer Posted August 12, 2013 Author Share Posted August 12, 2013 ok then, any suggestion on which cap or resistor would most likely be the culprit? Quote Link to comment Share on other sites More sharing options...
Foxtrot Posted August 12, 2013 Share Posted August 12, 2013 ok then, any suggestion on which cap or resistor would most likely be the culprit? Thats impossible to ask, You probably fried the entire board, doing whatever you did. Maybe you serged it :( Quote Link to comment Share on other sites More sharing options...
Mr-Protocol Posted August 12, 2013 Share Posted August 12, 2013 If you wanted, you can buy just the board and slap it in your AP121U case. Keep your current antenna whip as well because the hornet does not come with one. If you are in the USA, data-alliance has them. Hornet-UB is the model, it also lacks an RF Shield over the chip. Quote Link to comment Share on other sites More sharing options...
Foxtrot Posted August 12, 2013 Share Posted August 12, 2013 If you wanted, you can buy just the board and slap it in your AP121U case. Keep your current antenna whip as well because the hornet does not come with one. If you are in the USA, data-alliance has them. Hornet-UB is the model, it also lacks an RF Shield over the chip. I never got an RF-Shield on mine anyway :( Quote Link to comment Share on other sites More sharing options...
inTheDMZ Posted August 12, 2013 Share Posted August 12, 2013 So you had the 5v from the USB serial adaptor and the 12v adaptor both plugged in? Quote Link to comment Share on other sites More sharing options...
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