Best Deal on a Mobile PhoneFirst, always buy a phone & go with a cheaper prepaid service like Cricket. Even if the phone seems expensive, do the math. You'll find it's way cheaper. Add up what you pay for the phone and the 2 years worth of service in your contract at $70 or more per month. Versus buying the phone out right & going with a prepaid service at a far cheaper rate for 2 years.
Then, look for a good deal on the phone. I wanted a good camera at a good price so I googled best camera phones of (insert prior year). Then picked a model & searched for a deal. I ended up with a T-Mobile overstock which is needless to say. locked to T-Mobile. And I can't get quite as cheap of a plan with TMobile. So it needed to be unlocked.
How to Unlock a Phone
How to Unlock a T-Mobile Phone without a T-Mobile account for free.
Inside the T-Mobile folder is an App called Device Unlock
Click on the Device Unlock app. Select Permanently Unlock. Restart. Your phone will be unlocked.Now, the next thing that happened to me is that turns out the phone I bought, an LG G4, has an overheating issue that makes it not boot up one day. Or do what they call Bootlooping. So, after spending hours researching that as well, I had to send it in for repair, or rather, a motherboard replacement. I was pleased that it was returned to me in less than a week from the date I sent it. So, happily I installed the Cricket SIM, SDHC card, etc & began to reset up my phone. Problem. It wouldn't connect to Cricket. I removed & reinstalled, rebooted, etc. I realized that when you start the phone up, the display says 'Network Locked." On my unlocked phone! I try the app & it says the device is permanently unlocked.
Searched for hours on the internet, etc. Finally I find one post where someone has the same problem & he solved it. Here: https://support.t-mobile.com/thread/93749?start=0&tstart=0
How to Unlock your already unlocked phone with Device Unlock App when unlocked Phone says Network Locked and Mobile Networks is grayed out.
- Go to App Settings for the Device Unlock App.
- Stop the App, & clear all data & Cache. I had to go to storage settings to do that.
- Restart the Phone.
- Then go to the Device Unlock App & unlock the phone again.
- Restart again, I think. The app will tell you.