[Galaxy Tab 2 Q&A, Help & Troubleshooting] aamccarty:
Samsung SGH-T779 (Galaxy Tab 2 T-Mobile)

Hey team, I've spent several hours trying to work through what's going on with this Galaxy Tab 2 which my Dad wanted to give to my son.

Here's the status of the tablet. It hasn't been regularly used for years. When plugged in you get mostly non-responsiveness. BUT, after charging it for a few days, you can unplug it and then it will allow you to try Odin mode (power + volume down) and it FAILS to try recovery mode (holding power + volume up).

Firstly, when it tries to go into recovery mode, the top left blue wording appears "booting recovery" and then regardless of how long or I continue to hold vs. releasing the power button and up volume, it goes black and then goes into a kind of boot loop where it'll flash a stagnant "SAMSUNG" logo, then go dark and freeze on a kind of "glowing" but not changing SAMSUNG logo. I can press the power button and it'll go off, and then boot up to the two SAMSUNG logos again, but stays frozen there indefinitely.

Unable to factory reset from recovery mode, I've gotten the tablet into Odin Mode. I have used https://xdaforums.com/t/27-08-2013-...-versions-samsung-rom-flashing-tools.2189539/ for my guide to which Odin version (primarily 1.85, but I've tried 3.04, 3.06, 3.07 just to see if they worked better.) I've used this guide to help with the logistics of flashing the stock firmware: https://xdaforums.com/t/guide-odin-flash-guide.1671969/

The TAR files I'm using are from https://samfw.com/firmware/SGH-T779/TMB/T779UVTMF4 and show the following file names.

BOOTLOADER_T779UVTMF4_1255797_REV00_user_low_ship.tar.md5

CSC_TMB_T779TMBMF4_1255797_REV00_user_low_ship.tar.md5

MODEM_T779UVTMF4_1255797_REV00_user_low_ship.tar.md5

PLATFORM_T779UVTMF4_1255797_REV00_user_low_ship.tar.md5

I've been plugging the Platform file into the PDA slot, since there's not a PDA/Code in the file packet. I get the following message thread when running:

<ID:0/004> Added!!

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> BOOTLOADER_T779UVTMF4_1255797_REV00_user_low_ship.tar.md5 is valid.

<OSM> PLATFORM_T779UVTMF4_1255797_REV00_user_low_ship.tar.md5 is valid.

<OSM> MODEM_T779UVTMF4_1255797_REV00_user_low_ship.tar.md5 is valid.

<OSM> CSC_TMB_T779TMBMF4_1255797_REV00_user_low_ship.tar.md5 is valid.

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/004> Odin v.3 engine (ID:4)..

<ID:0/004> File analysis..

<ID:0/004> SetupConnection..

<ID:0/004> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)

I've also tried the file here: https://a2zrom.com/samsung-sgh-t779-firmware which only has one file named:

T779UVTMF4_T779TMBTMF4_T779UVTMF4_HOME.tar.md5

I plugged this into the PDA slot and the result was the following message thread:

<ID:0/004> Added!!

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> T779UVTMF4_T779TMBTMF4_T779UVTMF4_HOME.tar.md5 is valid.

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/004> Odin v.3 engine (ID:4)..

<ID:0/004> File analysis..

<ID:0/004> SetupConnection..

<ID:0/004> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)

Any direction here would be tremendously appreciated!

The only other information I can offer is that occasionally I HAVE had the SAMSUNG logo loop stall out at a greyed out horizontal battery symbol with a greyed out circle of "sun rays" before it goes black for good.

Any assistance would be greatly appreciated!

Thanks XDA wizards.

aamccarty