[FS#1165] MT7621 device with 32MB SPI NOR flashrom MX25L25645G hangs when sysupgrade or reboot.

[LEDE Bugs]

The following task has a new comment added:

FS#1165 - MT7621 device with 32MB SPI NOR flashrom MX25L25645G hangs when sysupgrade or reboot.
User who did this - Mathias Kresin (mkresin)

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As pepe2k pointed out in the forum thread you have linked to, it's a hardware design flaw. It can't be properly fixed in software.

There are different software workarounds which are able to limit the harm. But none of them will fix the issue completely. Hence, I'll close the ticket as "won't fix".
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1165#comment3840