K51 is the latest entrant in the LG K Series. It’s a successor to LG K40. As of now, there are 7 different variants of K51. The unlocking procedure varies from carrier to carrier.
The 7 variants of K51 are lmk500mm MetroPCS, lmk500umt3 T-mobile, lmk500um3 Boost Mobile, Xfinity Mobile lmk500qm5, Spectrum Mobile lmk500qm6, Verizon lmk500umt & Factory Unlocked lmk500qm7.
Apart from lmk500qm7 (factory unlocked), every other K51 variant needs to be carrier unlocked before using on other GSM/CDMA networks.
In this post, we are going to learn how to unlock LG K51 for free. So, Let’s check out the procedure –
How to unlock LG K51 for free lmk500 – Metro, Boost Mobile, T-Mobile, Xfinity, Spectrum, Verizon Unlock Code
On your LG K51 (MetroPCS) home screen, open the “Metro by T-Mobile” folder.
Tap “Unlock” to run the pre-installed device unlock app.
Make sure your phone is connected to the internet via Wifi or Mobile data.
Hit “CONTINUE” to proceed further.
A “Permanent Unlock” pop-up appears on the screen.
Select “OK” to accept the request.
Click “PERMANENT UNLOCK” to initiate the process. We need to wait for a while.
The app is sending a “permanent unlock” request to the server.
It’s good news. The unlock is approved.
It reads “Unlock Approved: Mobile device is permanently unlocked”.
We need to restart the phone to apply these settings. Our K51 is ready to use with any GSM carrier worldwide.
Did the “device unlock app” fail to unlock your K51? If that’s the case, let’s check out our options –
LG K51 MetroPCS Device Unlock
To make your K51 device unlock app eligible, your device must be active on the Metro network for a period of at least 6 months.
If you wish to unlock it earlier, you need to shell out at least $14 for paid remote unlocking on eBay.
Don’t waste your money on Unlock Codes. There is no provision to enter an unlock code on Metro/T-Mobile K51.
LG K51 T-Mobile Device Unlock
In case you’ve T-Mobile K51 and the device unlock app failed to unlock your device, check if you’ve fulfilled the free unlocking criteria.
For a Postpaid account the minimum active line of service should be 40 days and at least 1 year for prepaid accounts. A $100 refill in your prepaid account also makes your K51 eligible for free unlocking.
For paid unlocking, you can head over to the LG K51 remote unlocking service on eBay.
LG K51 Boost Mobile Device Unlock
To unlock your K51 Boost Mobile for free, the device must be active on the network for at least 12 months.
After serving for a year, you can call 1-888-BOOST-4U to send the “device unlock” request.
Like Metro & T-Mobile K51, Boost K51 can also be unlocked remotely via paid service. You need to pay around $14 to unlock your K51 Boost Mobile.
LG K51 Spectrum Mobile Device Unlock
You can unlock your Spectrum Mobile K51 only if you’ve paid the full cost of the device. Moreover, your phone must be active for a period of at least 2 months on the Spectrum Mobile network.
LG K51 Xfinity Mobile Unlock
Xfinity Mobile’s free unlocking criterion is the same as Spectrum Mobile.
You K51 must be paid in full and should be active on the Xfinity Mobile network for at least 60 days.
LG K51 Verizon Device Unlock
The last K51 device on our list is from Verizon.
Many years ago, I had the Motorola Droid 2 Global from Verizon and it was factory unlocked out of the box. This continued for many years. Now, it seems they have changed their policy to curb theft and fraudulent activity.
As per the latest Verizon device unlock policy, the device remains locked for a 60 day period after activation on the Verizon network.
Were you able to unlock your K51 for free? Please share your experience in the comment section below. Thanks for reading.