Question about Dual Electronics CECT P168 Cellular Phone

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Well i inserted my orange sim in my i9+++ phone but it came up with invalid sim. other sims work but with the same sim, i put into another phone and it worked however it still wont work in my i9+++

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  • 2,360 Answers

It may be due to network lock, contact service provider if it locked , you can get unlock codes here http://www.theunlockspot.com/
you need to specify the country and network provider

Posted on Dec 06, 2010

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: invalid sim message on i68 phone

i have the same problem i keep on putting my sims in (one tesco sim & one voda phone sim) and it said the same thing invalid sim. the sim regestars for about 2 seconds then it either says invalid sim or emergancey calls. whats a matter with it should i send it back.kjr2502

Posted on Apr 22, 2009

Z00T
  • 76 Answers

SOURCE: I purchased a unlocked cect i9 and it states to insert sim card how do i unlock phone?

This phone is NOT 3G compatible (it's just it's name ...) if your Tmobile card is 3G it will not work. All CECT phones are factory unlocked !

Posted on Jun 12, 2009

  • 74 Answers

SOURCE: bad signal i9 3g

maybe your phone signal probleam so better u add your phone signal boost up strip u can buy it and if u put it inside your mobile signal will be ok
good luck

Posted on Jul 14, 2009

  • 1 Answer

SOURCE: invalid sim

Ok, this sounds f**king stupid, but, try this
-Dial *#000#
-change the date to one in the past
-switch phone off then on
-change the date back to present
-switch phone off then on
This worked for me.... don't ask me why i even tried this

Posted on Apr 26, 2010

  • 2 Answers

SOURCE: how to fix an invalid sim card

try a different sim card if that doesent work then it might be the phone

Posted on Oct 21, 2010

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1 Answer

My orange phone is not working in south africa


Your mobile is locked with network provider.So whenever you insert a sim, your mobile displays the message like "Invalid SIM" .After unlocking you can use it any network in your mobile. This unlocking can be done through codes. I found a free unlocking service at Unlocking4free.com .If your mobile model is listed here, you can unlock your mobile easily.

Jan 21, 2012 | Cell Phones

1 Answer

Whenever I insert my vodafone sims in my Sci i9+++ (dual sim). It says invalid Sim. When I showed it to a mobile repairing shop, they told that the imei number might be corrupted. Though the imei numbers (...


Hi vitain, go to or call vodafone some of the carriers have been blocking the use of the i9's as they all seem to share the same imei numbers. Go and register on the below website and head to FAQ part and search invalid sim there is detailed instructions on how to change the imei number (way to much to put here).
www.i9forum.co.uk
Dione

Mar 15, 2010 | Dual Electronics CECT P168 Cellular Phone

2 Answers

How to detect the sim card i put?


I guess your phone has not been unlocked yet. Unlocked phones do not have any specific carrier software and work with all GSM carriers. These include T-Mobile, Cingular and AAAA . Multi-band unlocked phones also will work with carriers in other countries.So I guess you need to unlock your phone so that u can enjoy in your country.

Sep 22, 2009 | Dual Electronics CECT P168 Cellular Phone

1 Answer

19 3g sim 2 locked


contact your software provider because it is country lock. your phone will be working after unlocking your mobile software.

Jul 21, 2009 | Dual Electronics CECT P168 Cellular Phone

1 Answer

Also my i9 says sim invalid


you may need to take the phone and have it reflash but most likely the board is faulty so you should consider replacing it.

Jun 06, 2009 | Dual Electronics CECT P168 Cellular Phone

2 Answers

Invalid sim message on i68 phone


i have the same problem i keep on putting my sims in (one tesco sim & one voda phone sim) and it said the same thing invalid sim. the sim regestars for about 2 seconds then it either says invalid sim or emergancey calls. whats a matter with it should i send it back.kjr2502

Mar 12, 2009 | Dual Electronics CECT P168 Cellular Phone

3 Answers

Invalid sim


Ok, this sounds f**king stupid, but, try this
-Dial *#000#
-change the date to one in the past
-switch phone off then on
-change the date back to present
-switch phone off then on
This worked for me.... don't ask me why i even tried this

Feb 24, 2009 | Dual Electronics CECT P168 Cellular Phone

1 Answer

Invalid sim


there is a solution for your problem; go to ebay.co.uk and search for 'invalid sim' the sellers name is 'sim-solution'

Feb 24, 2009 | Samsung SGH-E900 Cellular Phone

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