Just an interesting story to share.
Do not attempt the same procedures if you're not an expert.
One of my many many boards refused to go flashing after I left it aside for months.
Then one idea came to my mind: Um... the eMMC is probably corrupted/locked up for some reasons.
So I opened the case and took the board out,
then I power it up and short PIN TP13 & TP15 together with a metallic paper clip (a conductor).
(During the design stage we have reserved these pins on...
Just saved a board by shorting the TP13 & TP15 pins
Do not attempt the same procedures if you're not an expert.
One of my many many boards refused to go flashing after I left it aside for months.
Then one idea came to my mind: Um... the eMMC is probably corrupted/locked up for some reasons.
So I opened the case and took the board out,
then I power it up and short PIN TP13 & TP15 together with a metallic paper clip (a conductor).
(During the design stage we have reserved these pins on...
Just saved a board by shorting the TP13 & TP15 pins