Nokia FLashing Error plz help

[amc.rc4u]

Firmware package: E2M-0390-0-00WW-B02
Processing fastboot flashing on Android ADB Interface[E2MBA80713006529]
Flashing in progress. Do not turn off the device !!!
Erase 'cache' partition
erasing 'cache'... FAILED (remote: device is locked. Cannot erase)
Erase 'data' partition
erasing 'userdata'... FAILED (remote: device is locked. Cannot erase)
fastboot capability: 0.5
model: E2M
sub_model: none
software version: E2M-0390-0-00WW-B02
SW model: 00WW
build number: B02
hardware version: PVT
RF band id:
G_850_900_1800_1900W_1_5_8L_1_3_5_7_8_20_38_40
chip version: none
MCP info: none
EMMC version: Samsung 5.1 8GB
security version: 4
project code: E2M
product: E2M
product id: E2MBA80713006529
sutinfo: 00000NOKAE2MX0431XXXXXXXX103E2M20400WW
bootloader type: service
battery capacity: 59
SKUID: 600WW
Performing authentication for root access...
root status: Enable
Performing authentication for bootloader flash permission...
[SERVER] NOKIA_FL [Nokia 2.1,E2MBA80713006529] cost: 0, retry: 2, your balance: 14
Flashing partition: E2M-0-0390-gpt_both0.bin (33.50 KiB)
Error: exit code 259

 

[haajuvn]

Me too, lost 3 credit ...