This should be noted in the wiki and on the router database, but it isn't; however, the fallback is to always search the forum extensively. I will link this thread in the Supported Devices wiki. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
Contribute To DD-WRT Pogo - A minimal level of ability is expected and needed... DD-WRT Releases 2023 (PolitePol)
DD-WRT Releases 2023 (RSS Everything)
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Linux User #377467 counter.li.org / linuxcounter.net
For anyone reading this after a failled upgrade, here is how you put the R7500 in "put" mode:
With the router turned off, use a sim tool or paper clip and press the reset button.
Maintain pressed while turning on the router.
Power led will flash red, then flash white.
Now release reset button and press PUT on TFTP utility.
Sad that it's a 2018 firmware but holy cow the coverage is amazing...