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How to unlock Samsung Galaxy S4 SCH-R970 ?

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By Lfc54, Junior Member on 9th June 2014, 11:14 AM
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Hello,

i am french. I ordered a Samsung Galaxy S 4 SCH-R970 on ebay.
He is locked with US Cellular.

How can i unlock it to use with my french sim card ?

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17th July 2014, 08:14 AM |#2  
philos64's Avatar
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I'm sorry but you cannot unlock your sim card. Your phone is a US Cellular phone.
Your phone use only 4G LTE US (CDAM) not European (GSM)
Last edited by philos64; 17th July 2014 at 08:20 AM.
28th August 2014, 01:07 AM |#3  
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Quote:
Originally Posted by philos64

I'm sorry but you cannot unlock your sim card. Your phone is a US Cellular phone.
Your phone use only 4G LTE US (CDAM) not European (GSM)

Hi..I found something I dont know if is something new..with this I entered the DM mode but only enable disable..I dont know what the dm mode is but is the first code that it worked in dial ap. Code is ##366633# if anyone can do something will be good to sim unlock..my question is what is DM mode that I can enable disable..
10th October 2014, 11:46 PM |#4  
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Quote:
Originally Posted by tsoupa

Hi..I found something I dont know if is something new..with this I entered the DM mode but only enable disable..I dont know what the dm mode is but is the first code that it worked in dial ap. Code is ##366633# if anyone can do something will be good to sim unlock..my question is what is DM mode that I can enable disable..

DM mode is Diagnostic Mode. This is the mode you need the phone in when you are using flashing software (CDMA workshop, DFS, etc). I also found that *#0808# will work on this phone to switch to DM + Modem + ADB

^^in case anyone else is scouring the net looking for that info..lol
10th October 2014, 11:54 PM |#5  
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you cant unlock it for gsm
you can onlay use it for any cdma carrier

Sent from my SCH-I535 using XDA Free mobile app
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