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10-21-2010, 02:48 | #1 (permalink) |
No Life Poster Join Date: Feb 2004 Location: Baguio_City;Ph @ DrunkenMaster Age: 44
Posts: 1,916
Member: 51716 Status: Offline Sonork: 100.1594676 Thanks Meter: 217 | pin detection |
10-21-2010, 09:56 | #2 (permalink) |
No Life Poster Join Date: Feb 2004 Location: Baguio_City;Ph @ DrunkenMaster Age: 44
Posts: 1,916
Member: 51716 Status: Offline Sonork: 100.1594676 Thanks Meter: 217 | can it also detect correct jtag pin for unsupported cpu (i think its very important for future support) |
10-21-2010, 10:56 | #3 (permalink) |
No Life Poster Join Date: Apr 2004
Posts: 753
Member: 61389 Status: Offline Thanks Meter: 193 | little tutorial about pin discover CPU without glue: - need to know the cpu pinout (factory pdf) - remove the cpu - discover the pin's with multimeter - reball the cpu - resolder the cpu CPU with glue: - phone with same family cpu (ex: msm 82xx) ad of course know pin's - multimeter - check the known pins and gnd via ohm meter (without power!) - check the known pins and gnd via volt meter (with power!) a little exaple: the left side unknown pins value the right side is the know pins value |
The Following 4 Users Say Thank You to jodge For This Useful Post: |
10-22-2010, 08:16 | #5 (permalink) | |
Freak Poster Join Date: Nov 2002 Age: 43
Posts: 190
Member: 18147 Status: Offline Thanks Meter: 0 | Quote:
Why tdo not pin25 but pin23?? Pin 25 has same resistance with correct pin, has more less voltage difference(0.16v)than pin23(0.36v). Is there a standard to measure difference between these voltage or resistance data???? | |
10-22-2010, 16:09 | #10 (permalink) |
No Life Poster Join Date: Apr 2004
Posts: 753
Member: 61389 Status: Offline Thanks Meter: 193 | yes i try same result. The riff solution is better bcose no need to short circuit the pcb before use the ohm meter. There are many capacitors on the pcb because of what we receive a bad result |
10-22-2010, 18:32 | #11 (permalink) |
Freak Poster Join Date: Nov 2005 Location: Miami,FL
Posts: 460
Member: 197641 Status: Offline Thanks Meter: 60 | @jodge I have a question for you. I was trying to unbrick 3 different phones with my Riff but I always get that there is a problem with the RTCK. I measured all the pins of the Riff and I got 0 volt from RTCK, TDO and 2 mores.... It's that normal or that indicate that my box it damaged. Thank you for your help. TaTo |
10-25-2010, 09:48 | #12 (permalink) |
No Life Poster Join Date: Apr 2004
Posts: 753
Member: 61389 Status: Offline Thanks Meter: 193 | did the riff never work yet? the first thing pls put into the trash your cable set, (read the sticky topic pls), the second you try to connect a working phone. the best choose for testing the samsung (only "connect and get ID" no need resurrection bcose the phone work, and follow the help). Third you MUST solder all wires. If not success pls contact your dealer |
05-06-2013, 11:09 | #13 (permalink) | |
Junior Member Join Date: Jun 2012
Posts: 12
Member: 1777733 Status: Offline Thanks Meter: 0 | does this ohm/voltage data work for msm8260 ? does this ohm/voltage data work for msm8260 ? Quote:
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