I’m trying to install in UEFI Mode on my Promethean CBx2 Chromebox. I can’t get the write protect to disable. The device is listed in the “supported” list at MrChromebox.tech via CR50 or jumper.
I didn’t manage to find/activate the jumper tho.
Had one other model with a WP screw, that worked fine. Removing the Bios battery also didn’t disable WP.
Anyone can help me here?
Mine looks like this:
Maybe also WHEN exactly does it need to be set/connected? Tried it turned on and turned off. During boot or something maybe?
as you noted, the connectivity is on the rings of the holes. A paperclip will work if large enough to make contact. Filling with solder and running a bit across to bridge them would be the most reliable way (and what I did on my JSL chromebook). This should be done with the device off and power disconnected (obviously).
I have same Wyvern and I ve done ten other Chromebooks but this one has me stumped too. I have under the SSD an empty screw hole but normally it will say WP , this says nothing. When I download the mrchromebook SW the 4 choices 2 3 +3 have that WP highlighted. Tried without battery and few other things No Joy. Any suggestions Thanks in advance. CTL Chromebox * Intel® i7-10610U Processor
BTW Option 1 in Menus of 4 is not WP .
Option 2 UEFI is WP 3 + 4 as well.
Can I use 1 Legacy to install Windows Ubuntu or Flex?
I don’t understand how the pic/instructions are unclear for Wyvern. There is a jumper pair, not a screw hole, under the SSD. It’s circled in the pic. You connect them with a bit of solder.
You cannot install Windows or Flex with RW_LEGACY and have it actually work.
I don’t know why you’d want to install Flex when ChromeOS is more capable and the device is supported until 2030 or so.
I dont have that two hole strap I have One empty hole same spot under SSD but no screw there and no WP marking.
I really want to Win 11 or Ubuntu or if I want to go back its easier to Boot Flex from that USB. I just cant UEFI choice # 2 as it say WP there. Choice 1 Legacy is the only opened option at this point.
post a pic, neither of my two Wyverns looks like what you are describing
no, it’s easiest to boot a ChromeOS recovery USB from recovery mode. Flex makes zero sense on a device with ChromeOS support.
Photo without Memory and Under SSD is open spot, not sure if this Was WP screw but usally it has a WP marking on Board.
SMH. you board has the exact same jumper pair as the pic I posted above.
there’s no screw. my site tells you exactly what WP type is used for each device. It has the pic posted above. Not sure what else I can do here.
They are clearly NOT the same. Thanks anyway for the try.
I ll give it a Go . Thank you Happy Christmas
