OK, finally figured out some things about fastboot mode on the BLU Dash X2.
First, no known key combination will get you into it. You have to instead adb reboot bootloader. And at that point no keys seem to be recognized. Everything is done over USB, using the fastboot command. I tried fastboot boot blutwrp.img but it failed saying "oem unlock is false". So then I attempted fastboot flashing unlock, but got a warning that if I unlocked the bootloader, I'd lose all my data. So I pressed volume down to answer "No". Then I just typed fastboot reboot to get back to the normal phone software. Guess I'll have to use that SPFlash tool again.
At least I know how to get out of Fastboot mode without yanking the battery now!
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last updated 2020-10-12 21:06:02. served from tektonic