[Windows Phone 8 Development and Hacking] evalu8t0r:
Dial codes extracted from ffu (\Windows\Packages\RegistryFiles\OEMSettings.reg - open with 7zip)

##634# - Color Variant + Life Time Counter

##4678255# - Tier3 Status

##7820# - sim lock status

##777# - Special phone reset (reset to default factory settings while preserving maps data, retail mode content and customization data. User generated data will be deleted)

Files found here:

RM-1045 VAR EURO 3V CV BLACK

RM1045_059W0X5_02061.00066.14252.51001_045.vpl - http://nds2.fds-fire.nokia.com/fds_...M1045_059W0X5_02061.00066.14252.51001_045.vpl

RM1045_02061.00066.14252.51001_RETAIL_prod_signed_1006_008D20_000-33_MV.ffu - http://nds2.fds-fire.nokia.com/fds_..._RETAIL_prod_signed_1006_008D20_000-33_MV.ffu

CustomerNvi_02061.00066.14252.51001_1006_0103ad779b2cdd6c01f1f9b305c18240.nvi - http://nds2.fds-fire.nokia.com/fds_...001_1006_0103ad779b2cdd6c01f1f9b305c18240.nvi

RetailModeNvi_02061.00066.14252.51001_1006_87802a046b90805a6c93e77a5b212595.nvi - http://nds2.fds-fire.nokia.com/fds_...001_1006_87802a046b90805a6c93e77a5b212595.nvi

RM1045_059W0X5_ccc_vs_v045.bin - http://nds2.fds-fire.nokia.com/fds_fire/1406/2717/7374419556/D420088A_RM1045_059W0X5_ccc_vs_v045.bin

RM1045_059W0X5_hwt_vs_v045.bin - http://nds2.fds-fire.nokia.com/fds_fire/1406/2717/7374419559/39EC74E3_RM1045_059W0X5_hwt_vs_v045.bin

DC_WP8_Template_NwWP_v2.bin - http://nds2.fds-fire.nokia.com/fds_fire/1309/0210/7273478891/93AAE976_DC_WP8_Template_NwWP_v2.bin

MirrorLink_template_production_v4.bin - http://nds2.fds-fire.nokia.com/fds_...70E9194_MirrorLink_template_production_v4.bin

NWP8_simlock_3gstandard_bb5_crcA59A.bin - http://nds2.fds-fire.nokia.com/p/d/fds_fire/NWP8_simlock_3gstandard_bb5_crcA59A.bin

040-121978_02_SW_TYPE_LABEL_RM-1045_ROW_dark.png - http://nds2.fds-fire.nokia.com/fds_...-121978_02_SW_TYPE_LABEL_RM-1045_ROW_dark.png

040-121978_02_SW_TYPE_LABEL_RM-1045_ROW_light.png - http://nds2.fds-fire.nokia.com/fds_...121978_02_SW_TYPE_LABEL_RM-1045_ROW_light.png

12160902.pcx - http://nds2.fds-fire.nokia.com/fds_fire/1406/2716/7374408557/6D8B74D0_12160902.pcx

RM-1045_Generic_003.xml - http://nds2.fds-fire.nokia.com/fds_fire/1406/2716/7374408562/3F763DC5_RM-1045_Generic_003.xml

mvsim_02061.00066.14252.51001_1006_860b28c8b1ff147eb766fd67f7ec6298.xml - http://nds2.fds-fire.nokia.com/fds_...001_1006_860b28c8b1ff147eb766fd67f7ec6298.xml

RM1045_059W0X5_02061.00066.14252.51001_045.dcp - http://nds2.fds-fire.nokia.com/fds_...M1045_059W0X5_02061.00066.14252.51001_045.dcp

RM1045_059W0X5_02061.00066.14252.51001_045.signature.bin - http://nds2.fds-fire.nokia.com/fds_...0X5_02061.00066.14252.51001_045.signature.bin

From the service manual:

Hardware reset (like reinserting the battery - no dataloss)

Press and hold the Power key for about 10-15 seconds until a short vibration is felt. The phone should restart by itself.

Factory reset (All data will be lost!):

Make sure the phone is turned Off.

Press and hold the power key

Phone vibrates (release the power key)

Press and hold the volume down key

Exclamation mark is shown on the screen (release the volume down key)

Input the following key combination:

Volume up

Volume down

Power

Volume down

The phone will reset and boot up automatically