I installed linux on my chromebook (boardname: JOXER) and decided to revert back, I restored via the rom backup from the firmware util. script, then did the chromebook recovery utility and in the debug menu it says: 0x2b / 0x2b Firmware Secure NVRAM (TPM) initialization error.
please help
Boot up to recovery mode, press tab, and send a picture of the debug info on the screen.
Unfortunately, the device is now bricked. You’ll need a SuzyQ to unbrick it. You can flash full rom firmware again, and then recover the tpm from linux to be able to use stock firmware.
I got it by using the steps for bricked due to RO something
I don’t understand what you said
Power
F2x2
Release
Do again
Mine is stuck at same recovery screen.
I don’t get what F2x2 means, which key have you pressed?
Press f2 (refresh) twice
Although, I’m not sure what they did. I’m guessing they did a hard reset until it worked. Resetting the CB up to 30 times sometimes fixes this issue
Thank you!
For my Lenovo Yoga, the key in question is F3.
I’ve tried this approach, but unfortunately, it hasn’t worked for me.
It seems I may need to purchase a debug cable to reflash the complete UEFI rom.
Oh I completely misunderstood your issue/fix
yeah it looks like jardelsf has a different issue.
Hey,
Is it possible to update the firmware (UEFI Full ROM) just using a SuzyQable cable, as the system not boot to a full system?
I’ve searched for a SuzyQable, but they’re rare now, and shipping on eBay is too high.
Yes, see the unbricking page on the MrChromebox docs.
I have the same problem here may i try with ch341a for flash it
