What to do if your Galaxy J3 is stuck on T-Mobile screen (won’t boot up)

Hello and welcome to this day’s #GalaxyJ3 troubleshooting article. This post will answer three common issues on this device. We hope you’ll find it helpful.

Problem #1: What to do if your Galaxy J3 Eclipse screen has discoloration or screen burn-in issue

Hello. My name is Mindy and I am writing about a screen issue with my Samsung Galaxy J3 Eclipse — Model #  SM-J327V. I dropped my phone around 4-5 months ago and had to replace the Display Touch Screen Digitizer and, of course, the outer glass.  I did not have any issues when doing the repair. Everything went smooth. About a month after the repair, I went to unplug it from charging and noticed a transparent green tint around the edge of my screen and a lighter green tint covering the rest of my screen.  I also noticed whatever I was viewing, the darker colors had the transparent green tint and the light colors had a transparent purple tint. This color tint issue happens when my phone is charging but clears up and goes away about an hour or two after I unplug it from charging.  About three weeks ago, I had to use a different charger and there was no issue with the tint. So I tried that charger again and the tint issue was back. I also took a snapshot of my screen but the tint did not show up. I have researched what the cause of this is but have found nothing.  I am hoping that you know or can find out what is causing this to happen. Someone did suggest that my screen may be “burnt”. I have no idea what that is or means. Please help me. I cannot afford to buy another phone. Thank you for your time and have a great day! 

Solution: Screen burn-in is a screen condition characterized by persistent discoloration or image. This phenomenon usually occurs if the screen is left showing the same image for a long time without any change at all. In this situation, pixels may be permanently “burnt” in the screen for good, causing the same image to appear regardless of whatever you’re trying to view.

Once screen-burn in has occurred, there’s often no way to reverse it. Whether or not this is what’s happening on your phone, the symptoms you mentioned are consistent of a bad screen issue (discoloration) so you’ll need to replace the LCD if you want to fix it.

A problem like yours often occurs when using substandard screen assembly. Make sure to source parts from reputable stores to avoid encountering the same or similar issues in the future.

Problem #2: What to do if Galaxy J3 won’t stay on unless plugged in

So I dropped my phone a Samsung Galaxy J3 from waist height while it was in an otterbox. I went to turn on the screen and realized it had shut itself off. Since then I have plugged it in and can’t get it to get past the lightning bolt symbol. It also won’t turn on unless plugged in and even then I need to get it to the download or install a new OS just to get it to turn on. When I have gotten it to turn on it shows itself having battery life but the moment it is unplugged it shuts off immediately as if the battery was pulled. I live km a small town community with no ready access to a service station so I’m hoping it’s a simple software issue and not a hardware problem.

Solution: If your problem occurred after that dropping accident, then you’re out of luck. Unnecessary shock from a drop can sometimes break a circuit or damage the motherboard so anything can happen afterwards. To check if you have a software issue though, try doing a factory reset and see what happens. This will return all software information back to defaults. If the reason for the problem is software in nature, factory reset should help.

To factory reset your Galaxy J3:

  1. Power off your Galaxy J3. Press and hold the Power key, tap Power off and then touch POWER OFF to confirm.
  2. Press and hold the Volume Up button and then press and hold the Home key. While holding both, press and hold the Power key.
  3. When the Android logo appears on the screen, release all three keys. It may take a minute before the Android recovery screen appears.
  4. While on Android recovery screen, use the Volume Down key to highlight options, in this case, highlight the option ‘wipe data/factory reset.’
  5. Press the Power key to choose the highlighted option.
  6. Press  the Volume Down key until ‘Yes — delete all user data’ option is highlighted.
  7. Press the Power key to confirm the reset.
  8. Once the reset is complete, press the Power key to choose ‘Reboot system now.’
  9. The phone will restart a little longer than usual and the reset is finished.

Should nothing change after wiping the phone and returning its software information to defaults, you can bet bad hardware is to blame. In this case, you have to let a professional check the hardware to see if it can be fixed or not.

Problem #3: What to do if your Galaxy J3 is stuck on T-Mobile screen (won’t boot up)

My Samsung J3 boots up to the T-Mobile “4G LTE” screen.  This is normally the last screen before going into the regular home screen.  I even get the little T-Mobile audio jingle. BUt whatever I do I can’t get it past that last boot screen. I have tried:


  • Soft reboot
  • Battery in and out
  • SIM card in and out
  • Memory card in and out
  • Battery fully charged and minimally charged
  • Plugged into power source
  • Plugged into computer
  • Download (Odin) mode
  • Recovery mode (wiped cache/did factory reset)


All to the same conclusion,  It gets stuck on that last T-Mobile screen.  I can’t get into safe mode, it just goes into Odin mode.  When plugged into computer, doesn’t boot far enough to register as a plugged in device.  Anything else I can try? Thanks!

Solution: Well, if your phone won’t boot to regular mode and only goes to Download Mode, you should consider flashing its bootloader first. Below are the general steps on how to do this. Exact steps for your particular model may vary slightly so make sure to consult other guides.

  1. Look for the correct firmware for your phone model and download it. Make sure that you select the right one. It should be the same exact firmware that ran previously on your device. We assume that you list down the firmware version somewhere. If you did not take note of it before, there’s a chance that you may pick the wrong one. As you may know now, using an incorrect firmware can cause complications so good luck with that.
  2. Let’s now say that you have identified the correct firmware. You then want to download it to your computer. The firmware file should have a bunch of files in it like AP_, BL_, CSC_, etc.
  3. Look for the file that starts with a label BL; this should be the corresponding bootloader file for this firmware. Once you’ve identified the bootloader file, copy it to your computer’s desktop or to any other folder that you can easily access.
  4. Proceed with the rest of the flashing procedure using the Odin program.
  5. In Odin, click on the BL tab and make sure to use the bootloader file you’ve identified earlier.
  6. Now, make sure that the “Device Added” status and its “ID:COM box” has turned blue before hitting the START button. This will initiate the flashing of your phone’s bootloader.
  7. Restart the phone once the procedure is finished.

You can also try to flash the stock firmware that came with your device when you first unboxed it. If that won’t work either, you can assume that there’s hardware malfunction somewhere. Have Samsung check it.


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