There are 2 types of Hidden Menu on LG K51. The secret menu is revealed by dialing a secret code in the phone dialer. The code can vary as per the carrier/service provider. We are going to check out the K51 Hidden Menu Codes for MetroPCS, T-Mobile & Boost Mobile.
The Hidden Menu includes a huge list of useful options. It can aid in LG K51 Troubleshooting.
So, without wasting time, Let’s proceed further –
LG K51 Hidden Menu Dialer Codes – MetroPCS lmk500mm, Boost Mobile lmk500um, T-Mobile lmk500tm
The hidden menu codes for MetroPCS and T-Mobile are the same.
LG K51 T-Mobile / MetroPCS First Hidden Menu
Open the Phone dialer on your K51 and dial this code 277634#*#
The options here are more or less similar to the first Hidden Menu.
1. LG K51 MetroPCS / T-Mobile Main Hidden Menu
The 2nd or Main hidden menu dialer code for Metro/T-Mobile K51 is *#546368#*500#
a. Device Test
We are on the LG K51 Hidden Menu page.
There are 4 options on this page – Device Test, ORT Test, SVC Menu & Field Test.
Let’s explore them one by one starting with the Device Test.
Go to Device Test > SAAT > Service Menu – Manual Test.
Let’s perform the K51 tests as follows –
1. Auto Detecting Item Test
Insert an SD Card and SIM card in their respective slots before performing this test.
I’ve successfully cleared the Auto Detecting Item test on my K51.
2. Key Press Test
The 2nd test on our list is the “Key Press” Test.
It also tests the Proximity Sensor.
Press all the 4 hard keys on your K51 i.e Volume UP, Volume Down, Google Assistant & Power Button. A beep sound and color change indicate the button is working fine.
Block the Proximity sensor with your hand and then unblock it. This way we can test the functioning of Proximity sensor.
3. Display Check Test
The 3rd test on our list is the Display Check test.
During this test the screen turns all black then all white. You can identify the dead pixels if any using this test.
4. Ring Test
At the name suggests, during the Ring test the phone rings at the maximum volume. You can troubleshooting external speaker issues using the Ring Test.
5. Vibrator Test
The next hardware test is the Vibrator motor test.
The K51 vibrates at maximum intensity during this test. If the vibration function is not working on your phone, go through this test.
6. Motion Sensor Test
The all 3 common motion sensors are present in LG K51. These are Magnetometer (Compass), Accelerometer & Gyroscope (VR).
To test the proper functioning of motion sensors we have to place the phone in different positions.
First of all, place it on a flat surface.
Now stand the phone vertically and then horizontally.
My K51 has passed the Motion sensor test.
7. Loop Back Test
At a time we can hear the sound through earphones or external speakers.
This loopback function is checked during this test.
When the Audio (through earphones) option is ON the speaker turns off and vice versa.
I’ve cleared the Loopback test on my K51.
8. GPS/Bluetooth/Wifi Test
The next option on the list includes 3 tests in one – Wifi, Bluetooth & GPS test. We can troubleshoot issues related to Wifi & Bluetooth using this test.
Connect your K51 to Wifi and Bluetooth before performing this test. The Location service should also be turned on.
9. Touch Draw Test – Manual
The touch draw test works in 2 parts.
During the first phase, do not touch the LCD.
Now draw manually on the screen to check the touch screen functionality.
10. Camera(Main) Test
We are going to test the Rear Camera during this test.
Touch the screen to take a picture.
Verify the picture to pass the test.
11. PDAF Test
The next test checks the LG K51’s Phase Detection Autofocus feature.
Try to focus on an object to clear this test.
12. Camcorder Test
During the next test, the rear camera records a video for 5 seconds.
Verify the video to clear the K51 camcorder test.
13. VT Camera Test
The VT Camera can be used to troubleshoot the Front /Selfie camera issues.
The Front viewfinder is visible during this test.
14. FM Radio Test
Connect an earphone to test the FM Radio functionality on your LG K51.
15. OTG Test
You can connect a Pen Drive, Mouse, etc, to your K51 using a USB OTG adapter.
Connect a Pen Drive before performing this test. The “Storage Mount” & “File Operation” tests are cleared.
16. Fingerprint Test
The last test on the Device Test list is the Fingerprint sensor test.
Tap “Start” to initiate this test.
Place your finger on the Fingerprint sensor to pass this test.
b. ORT Test
The next option on the Hidden Menu list is the ORT Test.
The ORT test options are more or less similar to the Device tests we performed earlier.
Check out the ORT Test list in the above screenshot.
3. SVC Menu
The 3rd option on the LG K51 Hidden Menu list is “SVC Menu”.
You can check out the SVC Menu test options in the above screenshots.
4. Field Test
The last option on the Hidden Menu Page is the “Field Test”.
It mostly contains Network-Related tests.
You can check out the test list in the above screenshots.
The notable tests are the LTE data test, Wifi test, GPS test, SMS test & Call test.
We can use the Field test option for network troubleshooting.
LG K51 Boost Mobile/Sprint/Virgin Mobile Hidden Menu Code
The LG K51 Boost Mobile Hidden Menu code is different but it takes us to the same Menu we explored earlier.
The dialer code for the K51 Boost Mobile Hidden Menu is 5689#*500#
Go through the beginning of the post to explore the Device Test, ORT Test, SVC Menu & Field Test options.
For any query or feedback, please leave a comment below.