The Galaxy Tab Forum: Missing Mac Address and Serial Number - The Galaxy Tab Forum

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Missing Mac Address and Serial Number

Posted 15 May 2012 - 11:59 PM (#1) User is offline   DDPN 

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  • Joined: 15-May 12
  • LocationAlabama, U.S.A.
  • Device Size:7-Inch Original
  • Device Model Number:Verizon SCH-I800 CDMA
  • Android Version:2.3.5 Gingerbread

I am having issues with my Verizon galaxy tab 7.

Here is what happened. When I got the tab about 1.5 yr ago i rooted with z4root so I could connect to adhoc networks. When 2.3.5 was released for it I could not upgrade(it always failed on the install screen) so I tried to unroot with the same program. That did not work either. about 2 weeks ago it started lagging real bad. I tried to do a factory reset but that did not help. So I found a rooted copy of 2.3.5 and flashed using hemdall. That fixed the lag issue and everything else seems ok. But now it gives me an error message that I am roaming and data is shut off in the pull down drawer. I don't have mobile service for it, i just use it for wifi. I can connect to wifi but still cannot get data in or out. And when I go into settings->about device->status my mac address, bluetooth address, and serial number are blank. Any ideas what happened.

Galaxy Tab Model : 7-Inch
Galaxy Tab Number : Verizon SCH-I800 CDMA
Android Version : 2.3.5 Gingerbread

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Posted 16 May 2012 - 08:22 AM (#2) User is online   Bart Laroc 

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  • Joined: 10-February 11
  • LocationBristol, UK
  • Device Size:7-Inch Original
  • Device Model Number:GT-P1000
  • Android Version:2.3.6 Gingerbread

the mac address, bluetooth address, and serial number are blank, because you have wiped your System/efs folder
to replace it, open your saved backup & copy the System/efs folder from there to your Tab
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Galaxy Tab 7-inch, GT-P1000, Overcome v4.1.0 Android Gingerbread 2.3.6, P1000XWJQ8

Posted 17 May 2012 - 03:12 AM (#3) User is offline   DDPN 

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  • Joined: 15-May 12
  • LocationAlabama, U.S.A.
  • Device Size:7-Inch Original
  • Device Model Number:Verizon SCH-I800 CDMA
  • Android Version:2.3.5 Gingerbread

Awesome that would be easy... if i had made a back up. Oh well it was not really usable before i tried this and it's not usable now, no loss really.

Galaxy Tab Model : 7-Inch
Galaxy Tab Number : Verizon SCH-I800 CDMA
Android Version : 2.3.5 Gingerbread

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