I have a problem Dell 3521. That is +3.3V is short to ground. I try to inject 1.5 V to the Coil and i found heat on KB9012QF A3 chip. I removed it and check again now that short has gone. But i have KB9012QF A4 chip as replacement. Is it OK. That is KB9012QF A3 to KB9012QF A4.
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Re: KB9012QF A3 chip on Dell 3521
Should be ok to swap A3 with A4. But ... you may need to program it. -
Re: KB9012QF A3 chip on Dell 3521
Ok thanks katfish. I will try it. But at the moment i don't have the programmer for KB chip. My programmer not supporting to do it. I already ordered for RT809F it will take few days to reach me. First i will fix KB9012QF A4 to the motherboard and i will wait for the programmer.Comment
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Re: KB9012QF A3 chip on Dell 3521
Yea, I've got one on order as well .... just did a new 9012 replacement. Waiting for the programmer too.
It is possible to use a CH341a ... from what I was reading. But seems to be a pain to get going with it. Need a Linux system and the flashrom program, I think it's called flashrom.
Here's a link to the DIY - http://dangerousprototypes.com/docs/...ith_Bus_PirateLast edited by katfish; 02-01-2017, 09:34 AM.Comment
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Re: KB9012QF A3 chip on Dell 3521
KB9012QF A3 = KB9012QF A4. 100% sure. Did it on dell 3521 . Need programming thoughComment
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