My phone sgh-i450 doesn't show any response but only when i connect to charger it shows charging signal
Hi, well all I can suggest is to replace the battery, clean the contacts etc, and see if that helps? However it may indeed be that you have a faulty power supply internally? usually a bad interconnect diode/switcher, this will give the symptoms you describe too, I see this type of thing often in my shop.. If you cannot sort it with a replacement battery then you will simply have to have the unit repaired, to this end approach a Samsung head or local office and ask for a referral to an authorised phone repair service center, then when there and in face to face contact then ONLY ask for a "Quote" as to how much it may cost to repair and go from there, this way at least you can decide as to repair or replace?
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