How to Fix Security Error Authentication Fail 9 When I Turn On My LG L9 Cell Phone

Beyond the more advanced models that have hit the market after the LG9, the truth is that this Korean firm has a huge number of other interesting devices, which we can take into account when it comes to acquiring a good quality / quality terminal. price.

Indeed, one of the main problems related to the LG L9 has to do with the message of “Security Error authentication fail #9”, which is a very common drawback in LG devices and is related to problems in internal areas of the device such as firmware, memory or SIM.

Remember that firmware is the computer program in charge of establishing the basic logic of your equipment that controls electronic circuits. When this error appears, our LG L9 is practically useless, that is, it cannot advance beyond the brand logo, without the possibility of doing Hard Reset, or entering Recovery.

It should be noted in this regard that the LG L9 is one of the devices that most users have searched for in recent times, and that is why today we have to talk about a tutorial related to this particular.

Why do I get the error ‘Security Error authentication fail # 9’ when powering up?

If the “Security Error authentication fail # 9” has appeared and you want be able to use it again As soon as possible, you have to know that fortunately there are two perfectly simple, legal and fast methods, by the time we try to revive our LG devices.

These are specifically the LG Flash Tool and LG Mobile Support Tool programs, although in both cases we will have to run them from a computer with Windows operating system.

LG Flash Tool is a free download driver for devices, whose firmware is greater than 1 GB KDZ.

LG Mobile Support tool es un driver that is only valid for devices whose manufacturing date is prior to May 2015 and for models prior to the LG G4. If updating is required on a later commercialized computer, it is done with the software LG Bridge. In this article we are going to pay special attention to LG Mobile support tool.

It is important that before using this tool you take into account that it is necessary have at least 10 Gb free on the computerThis is because the file you need to download usually occupies a large amount of space.

How to fix the ‘Security Error authentication fail # 9’ error?

Well, let’s talk then about how to eliminate “Security Error authentication fail # 9”, in this case using LG Mobile Support Tool, which is neither more nor less than a software for LG mobiles, which allows access to different functions. Some of them allow you to repair the software / firmware of your mobiles, or to install the drivers of a special device. The same applies for when we cannot perform a Hard Reset in a traditional way. So resorting to LG Mobile Support Tool is the best option.

Well, the first thing we have to do then is download and install this software on our computer, here we show you how to do it in 5 minutes.

Once you have done it you have to open the program, and then manually install LG drivers. When you have done it, you will have to activate the S / W mode of LG L9 (Download mode), for which it is necessary to press and hold the volume + button for about 5 seconds, then connect the mobile phone to the PC via USB.

When LG Mobile Support Tool recognizes the device, you give the option “Start update” to start updating the software of the device and remove it from the blockage in which it has been stuck.

If there were no updates, you go directly to “Additional Features” and there to “Update Error Recovery”.

When the process is finished, the device will restart automatically, and once it does, you just have to disconnect it regularly.

The software also allows emergency recoveries, In case of any failure or error and the device does not start or stays in the logo, you can try to do it to reinstall the software and recover the terminal. Although they generally require revision of the device by trained technical personnel.

Have you been able to fix the LG L9 Security Error with this trick?