Stock Robin endless reboot, not OEM unlocked

My Robin is now endless booting - splash screen, teal Robin screen, then I see the OS for a sec then it does it all over again. I am/was running latest Stock Android/Nextbit ROM from OTA updates. Nothing fancy, not unlocked, not rooted. Developer was enabled but not OEM unlocking (I don't think).

I tried a few things today - installed USB drivers, downloaded ADB package and the Nextbot ROM. I can get to fastboot and recovery mode but not sure how to proceed. Fastboot sees the phone attached to my PC from commandline. I tried the instructions to flash stock but I get
Code:
Created filesystem with 11/16384 inodes and 2089/65536 blocks
--------------------------------------------
Bootloader Version...:
Baseband Version.....:
Serial Number........: NBQGLMB650302177
--------------------------------------------
sending 'boot' (12413 KB)...
OKAY [ 0.431s]
writing 'boot'...
FAILED (remote: device is locked. Cannot flash images)
finished. total time: 0.580s
I also tried
Code:
C:\1tmp\nextbit\N108>fastboot -i 0x2c3f oem unlock
...
FAILED (remote: oem unlock is not allowed)

Any advice? I don't care if I lose everything on the phone - it was all backed up. I just want my Robin working again!

 

I'm in a similar boat - don't know what to do
----------
finished. total time: 0.794s
target reported max download size of 536870912 bytes
sending 'boot_b' (22029 KB)...
ERROR: usb_write failed with status e00002ed
FAILED (data write failure (Undefined error: 0))
----------

 

I'm thankful to report that the third time I tried after a fresh reboot I was able to use the same script successfully and the phone's working again. Just have perseverance!