820-01958 dead after an attempt to update, no boot, no dfu mode - SOLVED

hjpl

Member
Yes, but with the serial number changed.
I noticed some light discoloration on C8151 (PP1SR3V3_G3H_P0V6_S3_VIN) but no shorts.
Now I've flashed the original saved dump and completed the DFU restore but I have no caps-lock activity and no images, only the touchpad click.
 
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hjpl

Member
I replaced the U4770 because it was no longer recognized by the programmer, reflashed the working dump with the modified serial and completed the DFU restore but still no boot/image/activity.
So I disconnected the battery and connected only the logic board to power and noticed a drawing of 0.49a.
I reassembled, connected battery and power then it finally booted up.
Thanks for your Help!
 
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