[Q] Help with my Galaxy s 19000

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http://forum.xda-developers.com – Hi, I need some help. After a factory reset, my Galaxy si19000 takes a long time to turn on. It powers on ok but only get the welcoming screen come on/off sometimes for anything up to 5 minutes before the main screen opens and then everything is available and works fine. It does it with or without my simcard. Pushing the up/down and power button does not bring on the "triangle" screen and whilst the welcoming screen is flashing, the power button will not turn the phone off, only way is by removing the battery and start again, which will do the same thing. Any advise would be ver (HowTos)