Hi everyone,
I have an HP Elitebook 840 G5 that I am trying to get working again. I've removed the front bios chip (the 32mb one) and have run it through HP unlocker already. I've uploaded and verified the new bin, but am now experiencing an issue that has led me to believe I've been soldering the chip back to the motherboard incorrectly.
Essentially, after re-soldering the chip back into its place and reassembling the laptop, the charging light immediately flashes orange and white and then shifts to a solid white. The capslock and numlock lights blink seven times before shutting off. I've read the manual and this seems to indicate that "the embedded controller cannot find valid firmware" and this has led me to believe that I might be soldering the bios chip back on incorrectly.
The attached image shows my motherboard and the location where my bios chip should be. With reference to this image, I have been soldering the bios chip contacts to the pads above the yellow "A" letters. What I am unsure about is if the chip should actually be soldered to the smaller contacts above the green "B" letters. In addition, I don't know if the chip should actually contact the large rectangular contact in the middle or not.
The bios chip on the reverse side (the 16mb one) seems to contact only the smaller "B" pads but I haven't messed with that one at all.
If anyone could provide any guidance as to which way I should be soldering the bios chip back on, I would greatly appreciate it. Thank you for your time.
I have an HP Elitebook 840 G5 that I am trying to get working again. I've removed the front bios chip (the 32mb one) and have run it through HP unlocker already. I've uploaded and verified the new bin, but am now experiencing an issue that has led me to believe I've been soldering the chip back to the motherboard incorrectly.
Essentially, after re-soldering the chip back into its place and reassembling the laptop, the charging light immediately flashes orange and white and then shifts to a solid white. The capslock and numlock lights blink seven times before shutting off. I've read the manual and this seems to indicate that "the embedded controller cannot find valid firmware" and this has led me to believe that I might be soldering the bios chip back on incorrectly.
The attached image shows my motherboard and the location where my bios chip should be. With reference to this image, I have been soldering the bios chip contacts to the pads above the yellow "A" letters. What I am unsure about is if the chip should actually be soldered to the smaller contacts above the green "B" letters. In addition, I don't know if the chip should actually contact the large rectangular contact in the middle or not.
The bios chip on the reverse side (the 16mb one) seems to contact only the smaller "B" pads but I haven't messed with that one at all.
If anyone could provide any guidance as to which way I should be soldering the bios chip back on, I would greatly appreciate it. Thank you for your time.
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