HELP UART connection problems after done successfully 2 N900T IMEI Repair [Solved]

[banziitox24]

I'm having the same problem with the UART connection i did 2 Note 3 N900T but the third one doesn't connect to UART the lights of the UART connection on the box are flashing both of them very fast and the software stays searching and never connects, and i already have done a lot of them and I have diferent UART cables i have the C3303k with 525 kOhm and I have the UART with 523 kOhm and on both do the same the light flashing fast and when i disconnect the UART they stop blinking, i connect it back again blinking fast. I already flashed stock ROM rooted again, factory reseted the device, I writed the security, NVM and EFS back to the phone and nothing changed. Here's a link to a video a made with this problem.

https://www.dropbox.com/s/8dekqpq6qy...531_205254.mp4

Can someone please help me.

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[Octopus box]

Write first security backup (that was created by Software before performing the Unlock operation) into the phone and try to make repair IMEI once again. Post here full Software log with these actions.

[banziitox24]

Originally Posted by Octopus box

Write first security backup (that was created by Software before performing the Unlock operation) into the phone and try to make repair IMEI once again. Post here full Software log with these actions.

Here's the log

Welcome to Octoplus/Octopus Box Samsung software version 1.5.7
-----------------------------------------------------------------------------------
To connect SM-N900T phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
6. Go to dial window.
7. Enter "*#0808#" number.
8. Select "DM+Modem+ADB".
9. Press Home button.
10. Go to dial window.
11. Enter "*#9090#" number.
12. Set "Diag config" to "USB" value.
13. Restart phone.
14. Press "Read Info" in software.

-----------------------------------------------------------------------------------
Platform: Samsung Android
Selected port: COM106
Selected model: SM-N900T
Detected phone model: SM-N900T
Firmware compiled date: Wed Feb 12 21:37:28 KST 2014
PDA version: N900TUVUCNB4
CSC version: N900TTMBCNB4
SW version: N900TUVUCNB4
Phone IMEI: Unknown
Phone SN: RV8F10QCYBJ
Android version: 4.4.2 (KOT49H)
Writing security backup, please wait...
Phone will restart now
Security write successfully.
-----------------------------------------------------------------------------------
Platform: Samsung Android
Selected port: COM106
Selected model: SM-N900T
Mode: Normal
Phone model: SM-N900T
Firmware compiled date: Jan 29 2014
Firmware compiled time: 07:00:00
Firmware released date: Feb 12 2014
Firmware released time: 18:08:21
Phone IMEI: 357518-05-642749-5
SW version: M8974A-AAAANAZM-2.0.10025
-----------------------------------------------------------------------------------
Platform: Samsung Android
Selected port: COM106
Selected model: SM-N900T
Mode: Normal
Phone model: SM-N900T
Firmware compiled date: Jan 29 2014
Firmware compiled time: 07:00:00
Firmware released date: Feb 12 2014
Firmware released time: 18:08:21
SW version: M8974A-AAAANAZM-2.0.10025
Old IMEI: 357518-05-642749-5
New IMEI: 357507-05-006128-5
Creating NVM backup
Reading NVM done!
Connecting to ADB, please waite...
Firmware compiled date: Wed Feb 12 21:37:28 KST 2014
PDA version: N900TUVUCNB4
CSC version: N900TTMBCNB4
SW version: N900TUVUCNB4
Phone IMEI: 357518056427495
Phone SN: RV8F10QCYBJ
Android version: 4.4.2 (KOT49H)
Cheking Root
Erasing old IMEI. It can take some time. Please wait...
Reading security backup, please wait...
Backup saved as C:\Program Files\Octoplus\Octoplus_Samsung
\BACKUP\Security-SM-N900T-357518056427495-01-06-2014_23-44-
30-.asec file
Phone will restart now. Please don't disconnect cable!
After phone being rebooted and powered on perform the following
steps:
1. Disconnect USB cable.
2. Wait for 1-2 minutes.
3. Connect phone via UART cable to the Box.
Serching phone...


And the box is doing the same thing service cable lights are blinking very fast same as the video, here's a picture showing the UART connected to device and software doesn't connect and i know cable works because i did 2 Note 3 same version and same model

https://www.dropbox.com/s/v6hau5xj5d...602_024855.jpg

[Octopus box]

Serching phone...

Your phone doesn't answer to Software's CMDs. Try to use another Samsung Micro UART C3300k/C3303k cable with 523-525 kOhm resistor inside. Also try to use another box as UART interface with Samsung Micro UART cables You have. Currently no another solution.

[banziitox24]

Originally Posted by Octopus box

Your phone doesn't answer to Software's CMDs. Try to use another Samsung Micro UART C3300k/C3303k cable with 523-525 kOhm resistor inside. Also try to use another box as UART interface with Samsung Micro UART cables You have. Currently no another solution.

I did used another UART cable same results and how do I use another box as interface I have NSPro Box

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[Octopus box]

Just connect the box to PC and when Software will asks to connect the device to Box via UART cable, connect the phone to this box.

[banziitox24]

It worked!!!! I use NSPro as Interface and used one of my old S7070 cables that came with the NSPro and picked up really fast I tried with other cables and NSPro interface and none of them worked but as soon as I connected the S7070 it read it lighting fast.

So my box UART is damaged right?

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[Octopus box]

So my box UART is damaged right?

Hard to say exactly. Need to have it in hands to research the problem. Try to test also Box UART interface with other different phone's.

[banziitox24]

Yes was doing it right now and same results not connecting and was blinking very fast even tried with NSPro S7070 cable in the UART connection of the box and nothing but as soon as I connect the NSPro and connect the UART cable the software reads it so it has to be the box mines still have warranty how I do to get the replacement

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[Octopus box]

If your device has HW problem, please contact with your reseller to exchange Box HW by the warranty.

[banziitox24]

Alright I bought it from Gsmserver I'm contacting them right now

Thanks for all your help you really helped me a lot

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