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Go Back   GSM-Forum > Product Support Sections > Special Solutions / Services / WebShop > GPGIndustries Support section > Distributed Devices by GPG > GCPro Key

 
 
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Old 08-03-2016, 01:27   #1 (permalink)
Freak Poster
 
Join Date: Aug 2013
Location: California
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831C Invalid SIM


I have this phone model (M8) from sprint the unlock was successful with GCPRO.

I have the GSM/UMTS Only selected etc...

But the phone says "Invalid SIM", is it because the phone is on 4.4.4 ?

Please let me know if any can help with this problem.

Thank You.
 
Old 08-03-2016, 15:35   #2 (permalink)
No Life Poster
 
Join Date: Jan 2004
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@JetOneTV
Hello
If you are from usa use in usa need domestic unlock gcpro do not yet support for htc.
if you are not from usa paste us log so we can check what can be wrong.
 
 

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