Nokia 7 Plus : FAILED (remote: Fail to verify) - GSM-Forum

cuprax · 06-20-2019, 20:30

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash unlock 358544084734556_B2NGAA8870501709.bin
target reported max download size of 402653184 bytes
sending 'unlock' (0 KB)...
OKAY [ 0.010s]
writing 'unlock'...
FAILED (remote: Fail to verify)
finished. total time: 0.023s

Can't unlock with ntool generated bin file, why ?

imei repair was not working with server error, so I tried bootloader unlock to manually imei repair, now 10 credits is gone and can't unlock bootloader with this error.

hikari_calyx · 06-22-2019, 01:38

Your phone has new security (ProjectCode = B2N1) implemented.
In that case, bootloader downgrading is required before unlock, which can't be achieved by NTool for now.

06-20-2019, 20:30	#1 (permalink)
cuprax Junior Member Join Date: Feb 2008 Posts: 15 Member: 702363 Status: Offline Thanks Meter: 2	Nokia 7 Plus : FAILED (remote: Fail to verify) C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash unlock 358544084734556_B2NGAA8870501709.bin target reported max download size of 402653184 bytes sending 'unlock' (0 KB)... OKAY [ 0.010s] writing 'unlock'... FAILED (remote: Fail to verify) finished. total time: 0.023s Can't unlock with ntool generated bin file, why ? imei repair was not working with server error, so I tried bootloader unlock to manually imei repair, now 10 credits is gone and can't unlock bootloader with this error.

06-22-2019, 01:38	#2 (permalink)
hikari_calyx Insane Poster Join Date: Sep 2017 Posts: 81 Member: 2763156 Status: Offline Thanks Meter: 28	Your phone has new security (ProjectCode = B2N1) implemented. In that case, bootloader downgrading is required before unlock, which can't be achieved by NTool for now.