I rooted my Samsung Galaxy Grand 2 (SM-G7102) and it was successful. But ever since then the Engineering mode has been missing on my Android phone. I have tried the factory reset and yet the same result. I can't update my Android software, how do I solve this problem?

  • What do you mean by "missing"? What exactly happens when you try to reboot into recovery mode?
    – Chahk
    Jun 30, 2015 at 12:38
  • 1
    @Izzy Not sure but I think OP meant "Engineer mode". In my Mediatek device I can access two kind of Engineer mode, 1) *#*#4636#*#* (available for most of the phones, name -> "Testing", activity-> com.android.settings/.TestingSettings); 2) name-> "EngineerMode", activity-> com.mediatek.engineermode/.EngineerMode, available for Mediatek devices usually. // Let's see which one is the case for OP. Could be a third case too. :) And based on the tag, may be OP is running stock 4.3 JB.
    – Firelord
    Jun 30, 2015 at 14:52
  • Good points, @Firelord – I have no MTK device, but now that you've mention it I rawly remember having read that before. And you're most likely correct with the tag :) So let's wait for the OP to clarify.
    – Izzy
    Jun 30, 2015 at 14:56
  • When I reboot in recovery my phone would turn off and won't on for 1hr and my play store is not working anymore . Aug 10, 2015 at 9:57
  • @firelord I'm not sure I have two engineering modes and I tried different test mode and MTK app as well. Aug 10, 2015 at 10:01


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