https://www.ebay.com/itm/Repair-Part-For-Sony-DSC-HX300-DSC-HX400-Battery-Cover-Battery-Door-New-original-/151967487502 here's the part. is it broken Beyond repair? if so it's easy to do. Update (04/13/2018): there's not much information on how to fix it. try to bring it to a local electronic repair shop. sorry for the late response
I had a similar problem, and solved it by turning the grinder by hand against resistance. Apparently the grinder wasn't really turning during the cycle and needed to be cleared.
I would check the owners manual first to see if it labels the fuses. Usually this fuse box is under the hood. It could be a relay the is not working. Either way I would get a voltmeter and turn on the high beams and check for a 12 volt line. Probe the line in different spots to check for a broken wire. Try to find a diagram online for your car and look for the headlight circuit. Trace the circuit and you should be able to find the problem. These kinds of problems can be very difficult with out the right equipment and very time consuming. Best of luck Just as a side note depending on the car it could be using a CAN system and not getting a signal to the cars computer. Could also be as simple as a bad switch. Update (04/01/2018): https://www.ebay.com/itm/87-93-Chrysler-Lebaron-New-Yorker-Imperial-Headlight-Motor-Repair-Kit-W-O-Gear/161562272308?fits=Year%3A1989%7CMak... i would try this. on how to fix there 3 bolts take those out and the rest is straightforward if you need, go to Advance Auto they most...
Often, an iPhone will refuse to function in there is no SIM present. ... In this case, yes, you can update the iPhone over Wifi. However, if the phone is not activated, and you have not configured it, the phone will refuse to move forward in the configuration process without the SIM card.