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[Q] Live Demo Unit SM-N9005, Interesting HW question

OP gmedrano84

7th January 2015, 07:59 PM   |  #21  
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Hi guys, this thread is very interesting so I decide to tell about my situation hoping someone can help me find the truth.

I'm with a Samsung Galaxy S5 Mini LDU (SM-G800X). I've flashed an official Firmware of the Exynos Version (800F) got from Sammobile, for remove Retail Mode.
So far so good.
After flashing, something strange happen: on Status Menu the phone shows an IMEI! This is very strange cause all the LDU I've managed in my life (S4, S5 Note3, Note4, and some tablet) no one has an IMEI (obviously).
So, I decided to go through this and try to put a SIM card. Before put a SIM card, I've flshed TWRP for Exynos Version, got a FULL WIPE (System,Dalvik,Cache and Data) and reflashed the official Firwmare.
Now the phone is fully clean like a new one and ready for try SIM card.

I've tried tu put the SIM but no signal is reached. My story is very similar to the @gmedrano84 one. All he said is similar to my story, but the difference is that I have an IMEI so I don't know why this LDU canno't work.
Also on the Boot Screen, the sign "Live Demo Unit" is gone after flashing an official firmware (on my S5 LDU this not happened). The phone on first boot also checked for new OTA upgrades (LDU normally do not do that!).

So I ask you @vndnguyen to help me find the truth on this story. I wanna know if there is a chance to get this phone FULLY Working!

Thank you guys in advance!!

EDIT: To help you I've attached here some screenshot from your PHONE Info app and from the ServiceMode. Hope this can help!
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Last edited by iorya984; 7th January 2015 at 08:38 PM.
8th January 2015, 02:50 AM   |  #22  
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Quote:
Originally Posted by iorya984

So I ask you @vndnguyen to help me find the truth on this story. I wanna know if there is a chance to get this phone FULLY Working!

Your device has the Modem Board (SS222), so it has the Baseband and also the IMEI accordingly.

I don't promise that I can help you to find the truth, but can you provide some more info:

1- Please send me the screenshot of CSC INFO section in the Phone INFO ★Samsung★ app.
2- If possible, send me (or PM me) also the picture of the Back Sticker of the phone (behind the battery).
3- What secret codes did you use to open 3 above ServiceMode menu?
4- Can you show a screenshot of *#0011#?
8th January 2015, 10:16 AM   |  #23  
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Quote:
Originally Posted by vndnguyen

Your device has the Modem Board (SS222), so it has the Baseband and also the IMEI accordingly.

I don't promise that I can help you to find the truth, but can you provide some more info:

1- Please send me the screenshot of CSC INFO section in the Phone INFO ★Samsung★ app.
2- If possible, send me (or PM me) also the picture of the Back Sticker of the phone (behind the battery).
3- What secret codes did you use to open 3 above ServiceMode menu?
4- Can you show a screenshot of *#0011#?

Hi man, thank you for your help!
This is the other picture you ask me to send.
Rear battery Label I'll send you in PM.
About Service Mode, the 3 pictures I've posted are the result of +#0011# Code you suggest. It is strange cause they appear by itself, changing sometimes.
The command "Back>Enter Key Input>Q0 ecc... does not work for me.
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8th January 2015, 01:44 PM   |  #24  
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Quote:
Originally Posted by iorya984

Hi man, thank you for your help!
This is the other picture you ask me to send.
Rear battery Label I'll send you in PM.

Thank you. I've received the PM also.

Quote:

About Service Mode, the 3 pictures I've posted are the result of +#0011# Code you suggest. It is strange cause they appear by itself, changing sometimes.

Why it changes time by time like that with the same code *#0011#?

Quote:

The command "Back>Enter Key Input>Q0 ecc... does not work for me.

I see your Knox is already 0x1. Can you root the device to be able to launch the DEBUG SCREEN using Phone INFO ★Samsung★ app > Menu > 'Secret Codes' > 27663368378.

You will need it to find out why the phone cannot register to the network.

P.S: And don't forget to make sure your SIM card is good? (by putting it into another phone).
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8th January 2015, 02:19 PM   |  #25  
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Quote:
Originally Posted by vndnguyen

Why it changes time by time like that with the same code *#0011#?

I don't know why. It's a strange thing.

Quote:

I see your Knox is already 0x1. Can you root the device to be able to launch the DEBUG SCREEN using Phone INFO ★Samsung★ app > Menu > 'Secret Codes' > 27663368378.

Done. This is what appear on the Menu when I launch Secret Code you suggest


What I have to do next to check network?

Quote:

P.S: And don't forget to make sure your SIM card is good? (by putting it into another phone).

The SIM Card is fully working cause I'm using it for my job

Thank you!
8th January 2015, 02:30 PM   |  #26  
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Quote:
Originally Posted by iorya984

Done. This is what appear on the Menu when I launch Secret Code you suggest

What I have to do next to check network?

I'm not familiar with S5 Mini service menu, as I'm using Note 3.

But you can try to search for the NAS INFORMATION > MM INFORMATION, and MM REJECT CAUSE. Capture these 2 screenshots to see what happens?

If you cannot find these menu that I've mentioned, show me the sub-menu under the Service Main Menu, I will try to tell you.
8th January 2015, 02:43 PM   |  #27  
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Quote:
Originally Posted by vndnguyen

I'm not familiar with S5 Mini service menu, as I'm using Note 3.

But you can try to search for the NAS INFORMATION > MM INFORMATION, and MM REJECT CAUSE. Capture these 2 screenshots to see what happens?

If you cannot find these menu that I've mentioned, show me the sub-menu under the Service Main Menu, I will try to tell you.

@vndnguyen
I've found only NAS INFORMATION>MM INFORMATION but not MM REJECT CAUSE
This is the result


Now it appear like this
Last edited by iorya984; 21st January 2015 at 05:59 PM.
22nd January 2015, 02:48 AM   |  #28  
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Quote:
Originally Posted by iorya984

@vndnguyen
I've found only NAS INFORMATION>MM INFORMATION but not MM REJECT CAUSE
This is the result
Now it appear like this

Nothing new. The new screenshot is the same as before.
I can't tell you the cause of the problem without MM REJECT CAUSE screenshot.

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