Cool, glad it worked! To make things slightly easier, you should also try keeping the CMOS battery and DIM (whatever that is) in.
On Tue, Oct 20, 2015 at 4:51 PM, Arpita Biswas <[email protected]> wrote: > Hi David, > > That did the trick !!! Thanks a bunch ! For anyone else interested, here > is the combination of things I did : > > SOIC config as (1) mentioned earlier + held down the power button for 30 > sec to reset it + removed CMOS battery + removed jumper on SPI header (that > cuts off the processor signal to SPI chip) + plugged in the power cable > (that way enough power was there throughout the board for dediprog to > detect) + removed the DIM (dunno if that made any difference, but did it > since a post mentioned it anyways!). > > Dediprog then detected it sweetly :) :) > > Cheers, > - Arpita > > On Tue, Oct 20, 2015 at 2:05 PM, David Hendricks <[email protected]> > wrote: > >> >> >> On Tue, Oct 20, 2015 at 12:26 PM, Arpita Biswas < >> [email protected]> wrote: >> >>> Hi all, >>> >>> I am trying to update BIOS with coreboot onto HP Envy H87 haswell >>> chipset (ipm87_mp) >>> <http://www.newegg.com/Product/Product.aspx?Item=9SIA6392VN4810>. I am >>> using Dediprog + SOIC 8-pin flash clip for flashing the SPI chip (W25Q64). >>> However dediprog doesn't detect the chip when it's soldered on-board. On >>> removing the chip from board, I can detect/read/write onto it without any >>> issues. >>> >>> I've tried (and failed) with the following configurations : >>> (1) SPI pin ------> Dediprog : /CS ---> CS, DO (IO1) ---> MISO, /WP >>> (IO2) ---> 3.3V, GND ---> GND, DI (IO0) ---> MOSI, CLK ---> CLK, /HOLD >>> (IO3) ---> 3.3V, VCC ---> 3.3V with motherboard power ON. >>> >>> (2) Same config as above but I tried to isolate the chip by removing >>> CMOS battery + removing jumper on SPI header + powering OFF the motherboard. >>> >>> (3) Similar as (1) and (2), but let /HOLD, /Vcc and /WP float. >>> >>> (4) I tried using flashrom on the box too as internal programmer, but it >>> did not recognize the SPI chip. Error log says "Found Programmer flash chip >>> "Opaque flash chip" (8192 kB, Programmer-specific)." >>> >>> I've a feeling that something on the motherboard is interfering with the >>> SPI chip since an off-board chip is working fine. Does anybody have any >>> pointers on what could be going wrong ? >>> >> >> I suspect your motherboard does not isolate the SPI ROM's voltage supply >> and thus your Dediprog is effectively powering other components on the >> board. >> >> If you can find a way to hold the PCH and ME in reset while the board is >> powered on, that might work. Or, with the board off, you can try using an >> external power supply (the usual warnings about possibly frying your board >> apply). >> >> >> >>> >>> Thanks in advance, >>> - Arpita >>> >>> -- >>> coreboot mailing list: [email protected] >>> http://www.coreboot.org/mailman/listinfo/coreboot >>> >> >> >> >> -- >> David Hendricks (dhendrix) >> Systems Software Engineer, Google Inc. >> > > -- David Hendricks (dhendrix) Systems Software Engineer, Google Inc.
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