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How to fix “Invalid IMEI ” after Factory reset?

Hi. I followed Three.ie support and performed a factory reset on my HTC HD2 running Android 2.2.1. It now displays 'Invalid IMEI' where the SIM connection detail should be. I purchased the phone from China and have been using it with an O2 SIM but the reception in my area is bad so I sent for a three.ie SIM. This also worked OK but I queried why it was connectiong to Vodafone.ie and not three.ie. I was told to do a factory reset to correct this. The reset has now made the phone unusable. I have the original IMEI number printed inside the phone. This is 354120034327435. Please help.



  • 3
    Why aren't you continuing to work with Three support? – Matthew Read Apr 28 '11 at 14:43
  • Looks very similar to my problem, solved yesterday. Check out this topic. – T1000 May 2 '11 at 15:09
  • from where to have other modem.img file ? – matheszabi Oct 17 '13 at 20:39

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