Unlock Lumia 800 and Lumia 710 via USB Only in 4 Simple Steps

[kimberly]

If you have Qualcomm OSBL, go directly to STEP 3.

If you don't know what Qualcomm OSBL is, start from STEP 1.


STEP 1.
- Update your ATF exe to 10.10 and also UPDATE IMPORTANT FILES.
- After doing this, you should be able to see this File in your Hard Disk:

C:\AdvanceBox Turbo Flasher\Nokia\Lumia\

RM801_OSBL_QUALCOMM.esco <----- Lumia 800
RM803_OSBL_QUALCOMM.esco <----- Lumia 710
RM809_OSBL_QUALCOMM.esco <----- Lumia 710.1
RM819_OSBL_QUALCOMM.esco <----- Lumia 800.1

If you cannot see this file inside your Hard Disk, go back to Step 1 or Download them Directly from here:


Original Nokia Factory OSBL Files

STEP 2.
- Select the Correct RM-XXX for your phone and Flash this 1 File to your Phone using the +MCU Button on the ATF software and manually Locating the File in the correct Directory:

C:\AdvanceBox Turbo Flasher\Nokia\Lumia\

Screenshot Helper:

STEP 3.
- Click SP Unlock Button...