Since a cell phone has wired circuits just like a hardwired office or home computer or laptop these wires can simply come away from the circuit board or get rattled from their connections requiring a Cell Phone Repair.
This is an easy fix but you still have to give up your mobile phone to get a Cell Phone Repair. For some people just the thought of giving up their cellphone would be equivalent in order to giving up their laptop. If this is the truth then you should most likely have a spare cell phone that you can have all of your data backed up to so in case there is emergency or a failed cell phone there is a spare. But for some people this might not seem practical but a Cell Phone Repair shop can create a backup from the cell phone data in the event that this sort of thing happens and you'll be able to simply change cell phones and persist in going until your other cell phone is repaired.
When you get some sort of repair done to a cell phone they will usually start a complete survey of the full unit. You should try to take it to a repair center that has some knowledge. Just about anyone can established a repair shop and should you not check their references or learn long they have been in business you might find yourself with a cell phone that is worse when you took it throughout. There are a great deal of good experienced Cell Phone Repair shops that will do a great job of repairing your cell phone in a very timely manner. However sometimes they may need to order parts that may spend some time to come in. But generally a good repair shop that specializes in this type of repair has spare parts in stock and may repair you phone so you can own it back within 24 hours.
There are some stuff a good repair shop cannot do for you. If you drop your cell phone in a bowl involving salt water or inside the ocean it is unlikely you will be able to get this repaired. The salt water really does bad things to cell phones. If you drop it in to a sink of something and should you have a hair dryer available you might possibly save it until you can get it to a mechanic shop. You will need to hold on to the hair dryer to it long. But you may end up being better off taking it directly to a phone repair shop to see if they can help you.
If you have had the cell phone a long time the rechargeable battery may finally wear out and you will need to get the phone repaired. Also you may want a cosmetic repair such as unlocking the cell phone so you can insert a SIM card from another country if you are travelling with your phone and want to use it. .