Nokia dct4 contact service hardware or software easy to find with ufs+hwk
1)connect ufs+hwk
2)select dct4 tab
3)use info button(some times phone not enter local mode just long press power button
4)check info details

5)sl data corrupted(means simlock enabled)
6)just unlock phone

see second picture info details 100%done.but phone still show contact service
7)connect set
8)run self test

see this self test deials
ear _clk_loop test----------no signal
rf chip id test---------------failed
this contcat service hardware problem
hardware chance
10%others like bsi etc...........

see another self test details
lcd test-----------failed
resons lcd missmatched
just change display no need to flash&unlock etc.............

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