The telephones with the passage of time begin to fail continuously. It is quite easy to get to know all faults with a system diagnosisMany of the devices hide this and we can discover them with some hidden codes available for some manufacturers and models.
Many of the components of a mobile terminal begin to fail, Knowing if they are working will depend to a great extent on having that analysis, either through a command or with an application. Imagine that the battery lasts just a few hours, knowing its operation will allow you to rule out other failures.
Know the analysis codes
If you have a Xiaomi smartphone, a Motorola or another you can perform this step quickly, there are many brands and models that can execute this. You need to enter a code in the dial of your phone to know if the operation is fine or maybe you need to go through the workshop for repair.
Telephone codes
Huawei: *#*#2846579#*#*
HTC: *#*#3424#*#*
Sony: *#*#7378423#*#*
Xiaomi: * # * # 64844 # * # * inside the CIT Menu
Motorola: ## 4636 ##
Samsung: *#0*#
Each code is entered in the phone applicationTry one of them, if it does not work, it is likely that we will have to use an application to diagnose, such as TestM, a tool that cannot be missed by those who need to know everything about their mobile.
Phone Doctor Plus is another tool important when performing an analysis, it is free and does the complete analysis of everything that this device has. If, for example, the 4G connection does not work, you can fix it with your operator.
Exhaustive analysis
You can do it with the phone and one of the two applications mentioned, so it is important to download the two apps to be able to test everything with each one of them, RAM, battery, screen, among other things.
