Is my s5 neo blacklisted my imei number is 354726/07/203308/9

Check the attached links,
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Galaxy S5 Blacklist Repair
Unblock Un blacklist Galaxy S5 Mobile G900T
How to repair Blacklisted IMEI on Samsung Galaxy S4 S5 Note 4 NOTE 2 Note...
http://www.imeigurus.com/product/samsung-s5-bad-imei-fix-remote-imei-repair-service

The IMEI code is permanent and will identify your phone when it talks to the cell phone company.

Free check Blacklist Mobile by IMEI / ESN / MEID You can check your IMEI number is Blacklisted in AT&T, Verizon, T-Mobile, Telus, Sprint...Blacklist IMEI is lost, stolen or ineligible (Bad, Barred, Blocked, Financed, Under Contract) mobile phone. Always check blacklist before buy, sell or get phone.Supported:+ Private database (more than 1 million imei)+ USA: AT&T, Sprint, Verizon, T-Mobile, Cricket, Metro PCS+ Canada: Telus+ Sweden: Telenor+ Japan: Softbank, AU KDDITo find your IMEI number, type *#06# on the phone keyboard, or is located in the battery compartment.Please enter the 15 digits, without any other character.
https://imeidata.net/blacklist/check

you can try to get T mobile to remove it but I doubt they will since that is the only to stop cellphone thieves,right now

The imei number isn't blocked or on any blacklists

In theory you can use the phone in any country outside the country that it was blacklisted in! Usually that is the only requirement! The other option is as you suggested to replace the internal circuitry or buy a damaged S5 like a cracked screen and replace it using your blacklisted S5!

Go to androidrooter.com. he can fix blacklisted phones

Hi, I'm afraid no one will do that for you just like that, it's possible to use the Blacklist Check service on Fastgsm site, for example: Blacklist IMEI Check Report

To, Which network has your Sony Ericsson Xperia Neo V has been locked to? You can get the unlock code for a Sony Ericsson Xperia Neo V from www.unlocking4u.com/sony-ericsson-xperia-neo-v/rs6wp9/ at affordable cost. all the best mate.
Here are the steps for unlocking a Sony Ericsson Xperia Neo V:
1. Switch ON your Sony Ericsson Xperia Neo V with a Not Allowed SIM Card.
2. Your Sony Ericsson Xperia Neo V will request to enter an unlock code.
3. Tap the box where you have to input the code and a number pad will appear.
4. Type in the unlock code we send to you.
5. Press the 'Unlock' button on the phone.
6. Your Sony Ericsson Xperia Neo V phone should now be unlocked.

I recommend you contact your service provider.



Blacklisted or Barred Handsets

What is it all about???
A phone may be blacklisted (or barred) for many different reasons, but the most common reason is that it has been reported either lost or stolen! It is only the networks (Orange, T-Mobile, O2, Vodafone etc) that have the facility to blacklist a handset.

If you are unfortunate enough to either lose or even worse have your phone stolen you should report it to your service provider (your network) immediately!
Your service provider can then blacklist the handset so that it can no longer be used to make or receive any calls. The networks do this by adding your phones serial number onto a national blacklist database (Central Equipment Identity Register). Effectively the handset becomes absolutely useless and the thief is in possession of a pretty paper weight! :-))


So How Does Blacklisting Work?
Every mobile phone has a unique serial number. This serial number is called the IMEI number (International Mobile Equipment Identity). It can normally be found underneath the phones battery and it is 15 digits long.

Now each time you switch your phone on or attempt to make a call the network systems check the IMEI number of the handset you are using. At this point the IMEI number of your handset is cross referenced with the Central Equipment Identity Register. If the IMEI number of your handset is on the CEIR then the network will either:

1) Refuse to send a signal to your phone (No signal strength at all)

2) OR WILL supply a signal but will not allow any outgoing or
incoming calls.

If your IMEI number is on the CEIR your handset is blacklisted and therefore useless.