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giantpune / twrp_dragonboard410c

custom recovery for qcom dragonboard410c
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fastboot boot recovery.img #1

Open mdupuy opened 8 years ago

mdupuy commented 8 years ago

I've downloaded the 20.7MB recovery.img file and used fastboot to boot it on my 410c; I get the following normal output:

downloading 'boot.img'... OKAY [ 0.637s] booting... OKAY [ 0.106s] finished. total time: 0.743s

Then nothing. No HDMI output with the TWRP recovery menu, nothing from "adb devices". None of the lights on the board are lit. Any suggestions for debugging this? Anyone else having this issue? Thanks for trying to get TWRP on the dragonboard! I appreciate it a lot!

giantpune commented 8 years ago

It works on all the dragonboards I've run it on. Maybe try cloning the git again to make sure you didn't get a bad file. If that doesn't fix it, maybe you can try giving the ole "fastboot oem unlock". I'm not sure it matters, but I'm using the default 1080p video mode. Haven't tested it while the bootloader is set to 720p or any other video mode.

It does work for me with any combination of otg (adb) and usb mouse and keyboard I've tried, including none at all. So I don't think those would be to blame, but maybe try disconnecting any usb things besides the cable for fastboot.

mdupuy commented 8 years ago

I've tried downloading the recovery image a few different ways and 'diff'ed the results but they are all the same so I suspect that isn't the issue. I can't fastboot oem unlock or fastboot flashing unlock and before anyone asks, yes, I enabled OEM unlocking in the developer menu. I've made sure to boot it with the keyboard/hub/mouse disconnected and the mini-B port disconnected exept when issuing adb or fastboot commands. I've even tried with HDMI disconnected.

All of the switches on the underside (1-4; HDMI SEL through USB BOOT) are in the off position as I received it. The board has a lot of numbers on it but appears to be a Rev A or RevA1 though it does look a bit different from another one I've seen. Some have metal, rectangular shields on the top covering a few BGA chips. This one doesn't. Hmmmm

Thanks for all of your ideas and help!