[FS#1276] ipq806x: TP-Link C2600 device bricked after sysupgrade

[LEDE Bugs]

The following task has a new comment added:

FS#1276 - ipq806x: TP-Link C2600 device bricked after sysupgrade
User who did this - NotTheEvilOne (NotTheEvilOne)

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Note: Recovery to factory works flawlessly so testing is possible.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1276#comment4110