[Nextbit Robin] vampire_8_7:
Hi All

I bought this phone 3 months ago, and started to use it last week. I started the phone up got the notification of Nougat update and started the upgrade this is before even signing in :). In the middle of one of the updates the phone shut down, started it back up and it booted into recovery. I have tried to boot into the system about 3 times and same thing it boots into recovery. Tried to factory reset it and reboot into system bad luck.

Downloaded the firmware 6.xx and 7.xx tried to flash both of them, but I was going no where, spent few hours trying to do that till I realised that.

1- USB Debugging was disabled.

2- Bootloader was still locked.

So I am completely screwed. I have tried the Unbrick Tool and still no luck the phone has been stuck on "sending segment 1 of 'system' (2475972 KB)..." for over an hour. What is surprising it shows in the logs below that it has successfully flashed recovery.

C:\Users\Mahmoud\Downloads\Compressed\1350\1350>flash-all.bat
Do you wish to wipe the device when flashing?(Y/N): Y
sending 'partition' (34 KB)...
OKAY [ 0.020s]
writing 'partition'...
OKAY [ 0.021s]
finished. total time: 0.049s
sending 'sbl1' (479 KB)...
OKAY [ 0.030s]
writing 'sbl1'...
OKAY [ 0.021s]
finished. total time: 0.057s
sending 'sbl1bak' (479 KB)...
OKAY [ 0.030s]
writing 'sbl1bak'...
OKAY [ 0.021s]
finished. total time: 0.059s
sending 'aboot' (701 KB)...
OKAY [ 0.030s]
writing 'aboot'...
OKAY [ 0.021s]
finished. total time: 0.055s
sending 'abootbak' (701 KB)...
OKAY [ 0.030s]
writing 'abootbak'...
OKAY [ 0.021s]
finished. total time: 0.056s
sending 'rpm' (188 KB)...
OKAY [ 0.020s]
writing 'rpm'...
OKAY [ 0.021s]
finished. total time: 0.045s
sending 'rpmbak' (188 KB)...
OKAY [ 0.020s]
writing 'rpmbak'...
OKAY [ 0.021s]
finished. total time: 0.047s
sending 'tz' (561 KB)...
OKAY [ 0.030s]
writing 'tz'...
OKAY [ 0.020s]
finished. total time: 0.056s
sending 'tzbak' (561 KB)...
OKAY [ 0.030s]
writing 'tzbak'...
OKAY [ 0.020s]
finished. total time: 0.055s
sending 'hyp' (93 KB)...
OKAY [ 0.020s]
writing 'hyp'...
OKAY [ 0.021s]
finished. total time: 0.049s
sending 'hypbak' (93 KB)...
OKAY [ 0.020s]
writing 'hypbak'...
OKAY [ 0.021s]
finished. total time: 0.045s
sending 'sdi' (28 KB)...
OKAY [ 0.020s]
writing 'sdi'...
OKAY [ 0.021s]
finished. total time: 0.046s
sending 'pmic' (37 KB)...
OKAY [ 0.020s]
writing 'pmic'...
OKAY [ 0.021s]
finished. total time: 0.046s
sending 'pmicbak' (37 KB)...
OKAY [ 0.020s]
writing 'pmicbak'...
OKAY [ 0.021s]
finished. total time: 0.046s
sending 'hwcfg' (1 KB)...
OKAY [ 0.020s]
writing 'hwcfg'...
OKAY [ 0.021s]
finished. total time: 0.045s
sending 'bluetooth' (450 KB)...
OKAY [ 0.020s]
writing 'bluetooth'...
OKAY [ 0.021s]
finished. total time: 0.046s
sending 'keymaster' (148 KB)...
OKAY [ 0.020s]
writing 'keymaster'...
OKAY [ 0.021s]
finished. total time: 0.046s
sending 'cmnlib' (165 KB)...
OKAY [ 0.020s]
writing 'cmnlib'...
OKAY [ 0.021s]
finished. total time: 0.045s
sending 'splash' (6075 KB)...
OKAY [ 0.141s]
writing 'splash'...
OKAY [ 0.020s]
finished. total time: 0.166s
sending 'splash2' (6075 KB)...
OKAY [ 0.141s]
writing 'splash2'...
OKAY [ 0.020s]
finished. total time: 0.167s
sending 'persist' (4673 KB)...
OKAY [ 0.120s]
writing 'persist'...
OKAY [ 0.020s]
finished. total time: 0.144s
sending 'modem' (78615 KB)...
OKAY [ 1.729s]
writing 'modem'...
OKAY [ 0.013s]
finished. total time: 1.746s
sending 'cust_nv' (301 KB)...
OKAY [ 0.030s]
writing 'cust_nv'...
OKAY [ 0.021s]
finished. total time: 0.053s
sending 'systeminfo' (4 KB)...
OKAY [ 0.020s]
writing 'systeminfo'...
OKAY [ 0.021s]
finished. total time: 0.043s
sending 'KEY_INFO' (1 KB)...
OKAY [ 0.020s]
writing 'KEY_INFO'...
OKAY [ 0.021s]
finished. total time: 0.045s
sending 'hidden' (9319 KB)...
OKAY [ 0.211s]
writing 'hidden'...
OKAY [ 0.020s]
finished. total time: 0.235s
sending 'sutinfo' (1 KB)...
OKAY [ 0.020s]
writing 'sutinfo'...
OKAY [ 0.021s]
finished. total time: 0.044s
rebooting into bootloader...
OKAY [ 0.006s]
finished. total time: 0.006s
< waiting for device >
sending 'recovery' (12794 KB)...
OKAY [ 0.291s]
writing 'recovery'...
OKAY [ 0.020s]
finished. total time: 0.320s
rebooting into bootloader...
OKAY [ 0.003s]
finished. total time: 0.003s
< waiting for device >
sending 'boot' (11746 KB)...
OKAY [ 0.281s]
writing 'boot'...
OKAY [ 0.019s]
finished. total time: 0.306s
rebooting into bootloader...
OKAY [ 0.010s]
finished. total time: 0.011s
< waiting for device >
simu_flash:971f0dec:system
sending segment 1 of 'system' (2475972 KB)...

I tried to fool the device and downloaded twrp and named it recovery.img and placed within the same directory and again it said it was flashed as you see above, and when I tried to boot into recovery it was still the stock one.

Sadly I can't return my phone and Amazon is refusing to take it back since it was past the 30 days so I can't file an A-Z claim. I hope someone can help and giving me an idea of how to unlock the bootloader so at least I can flash stock again.

Cheers