please you get hold of a multimeter its really needed
and of using a multimeter you should be fine with that
at the least you need to check the battrey terminals as its one of the fine ways of detcting irregularites in electronics

what i fear hear is your usb connector getting loose then going out of hand and the most imp part is i beliveve you will find it difficult to find a place who will fix it for you feisabley as judging by your posts you can do a lot on software ie basicly your posts give a good clue about what might be happening and yes all that without any tools so end this for good


and i opend mine and yes i didnt use a multi as i could see the uprooted usb connecter when applied force decided to replace it but the technician said there are better ways available i.e he said he can refix the loose port and reniforce it with solder alloy ? so i left it with the technician who does thease on a regular basis.

i decided to proceed immediately as twmorrow i was copying photos and windows threw an 0x0000000 kindof error after each copy sometimes it just got struck forever formatting didnt help either not even the camera app not saving images was solved i did try diffrent computers too linux would mount fine then vanish out of nowhere and that was it at least with linux i was little sure its not some filesystem issue rather a physical connectivty issue and dont even mention windows i was never sure what was wrong as with all that not responding and 0x00000 errors was just hampering my little brain to get on a conclusion

as of now myusb port is repaired i will post pictures as i recive it in evening

for now the camera app image saving remains an issue as i need to uninstall fcamdrivers and associated stuff