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Help Phone Stuck in Bootloop

Ducky2322

Lurker
May 8, 2016
1
0
I have a Samsung Galaxy Light and my phone suddenly stopped working properly yesterday. It was on the charger, and when i went to check it, it wouldn't turn on. Once I got it to boot up, all the google apps (except Chrome, oddly) and processes crashed continuously, then the phone froze. After removing the battery, it is now stuck in a boot loop. I can't boot up recovery mode. It shows a dead android with the phrase "no command" and then my phone shuts off again to reboot back into the loop. I can get it into download mode. Please help. I'm unsure what could have happened since all the research i've done points to this usually being an issue of those who mod their Android.
 
I have a similar problem. I woke up and it was dead so I charged it. When I turned it on it worked for a bit, but everything kept "closing" so, went to turn it back on and nothing except it was stuck in a boot loop with the samsung logo and would keep flashing like every 5-8 seconds. I found out how to do a master reset and now it's been stuck with the android logo and "downloading...do not turn off target". It's been this way for over 2 hours now.

ODIN MODE

and in white letters:
PRODUCT NAME: SGH-T399N
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Official

Secure Download: Enabled

I've read a lot about this but no resolution.

Is my phone waiting for a usb cable and some sort of aforementioned software? I'd LOVE an answer :)
btw, it's an inactive phone I only use it on wifi.
 
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What you've done is put it into download or Odin mode. What you need in addition to that are the firmware files for your specific model which you can download from here:

http://www.sammobile.com/firmwares/database/SGH-T399N/

And Odin. You can get that here:

http://forum.xda-developers.com/showthread.php?t=1738841

Please follow the instructions on Sammobile.com where you download your firmware.

Do I plug in my phone once I get into that message? and it says ODIN at the screen

which version of do i use, 9/21/15 or 1/6/15?
Date
Country/Carrier
Version
PDA
CSC
Kies
2015-09-21
USA (T-Mobile)
4.4.2
T399NUVUAOH3
T399NTMBAOH3
YES

2015-01-06
USA (T-Mobile)
4.4.2
T399NUVUANK3
T399NTMBANK3
 
Last edited:
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"And Odin. You can get that here:"

http://forum.xda-developers.com/showthread.php?t=1738841

Which do I download?

ODIN (Samsung Flashing Application)

odin306.jpg


All latest versions and download links are below! of course courtesy of samsung-updates.com portal!

Odin (v3.07) is HERE
Odin (v3.06) is HERE
 
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Flash is the same as install. Since you are having problems with your device, flashing or reinstalling the firmware should put you back to out of the box condition.
Odin is the PC software/ flash tool that is used on Samsung devices.
After you have Odin installed and your firmware downloaded, you connect your device in download mode to PC.
Click on the AP button, scroll to your firmware that you downloaded and select it.
When Odin is satisfied that all checks out, you click on the start button.
Everything after that is automatic.
 
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[28/06/2012][v3.07][ODIN] All Latest ODIN (Flash program) Versions for Galaxy S III
at this link http://forum.xda-developers.com/showthread.php?t=1738841 seems to be for Galaxy SIII not T399N
V3.07 is a older version of Odin. Odin is the flash tool for all Samsung devices.
The new version is 3.11. 3.07 will work just fine. Instead of AP slot in newer version, you would select PDA to place your firmware.
All Odin versions here
http://forum.xda-developers.com/showthread.php?t=2711451
 
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Ok, I thought I was home clear and started my steps as instructed:
  • Extract (unzip) the firmware file
  • Download Odin v3.11.1
  • Extract Odin ZIP file
  • Open Odin v3.10.7
  • Reboot Phone in Download Mode (press and hold Home + Power + Volume Down buttons)
  • Connect phone and wait until you get a blue sign in Odin - THIS is where I thought things were going good, but nothing happened, so i went ahead to the next step
  • Add the firmware file to AP / PDA - AS soon as I added this file it started acting like it was connecting, but noooo, couldn't be THAT easy. It finally displayed :
    <OSM> Enter CS for MD5..
    <OSM> Binary Check MD5.. Do not unplug the cable..
    <OSM> Please wait..
    <OSM> Checking MD5 finished Sucessfully..
    <OSM> Leave CS..

  • Make sure re-partition is NOT ticked (then I was able to check to see if it was checked or not, then I clicked START.
  • Click the start button, sit back and wait few minutes. THEN this:
    <OSM> All threads completed. (succeed 0 / failed 0)
    and phone is still in download mode, do not turn off target. Now what? <sigh>
 
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