Assalamualikum brother Zulfiqar. I have been facing same problem with my Honda Civic Reborn. I have 3 keys and they dont work on driver side like its stuck but it works perfectly well on all other doors and even ignition.
From inside if i put the latch and use lock button from the driving side panel then the driving door locks properly with a proper "Tak" sound.
I was thinking to use WD40 but then i came across your this reply. You've been a true help by pinning down the issue with my previous Lancer AC coil magnets.
Now.. I would like your opining regarding my new cars driving side door lock problem. They key won't just turn left or right. Its not a keyless entry but it is central locking. I see you suggested graphite powder. Is that a powder thing? How to get it in place where key enters? Should I mash it up and make a paste out of it by adding some water? I am just imagining how and IF i should apply same solution for problem?
I checked online and there are numerous graphite lubricant spray but I wonder if there are some available in Pakistan at a reasonable price. If so kindly let me know the name and price... or if any other solution.
Thanks in advance brother for your time.